Schedule of Investments March 31, 2019 Unaudited

Oppenheimer S&P 500 Revenue ETF

	Shares		Value
COMMON STOCKS—99.7%
Automobiles & Components—2.8%
Aptiv PLC		14,305	$	1,137,105
BorgWarner, Inc.		22,403		860,499
Ford Motor Co.		1,548,921		13,599,526
General Motors Co.		315,002		11,686,574
Harley-Davidson, Inc.1		12,304		438,761
Total Automobiles & Components				27,722,465
Banks—4.4%
Bank of America Corp.		313,764		8,656,749
BB&T Corp.1		21,242		988,390
Citigroup, Inc.		128,529		7,997,074
Citizens Financial Group, Inc.		16,722		543,465
Comerica, Inc.		3,461		253,761
Fifth Third Bancorp		22,931		578,320
First Republic Bank1		2,854		286,713
Huntington Bancshares, Inc.1		30,733		389,694
JPMorgan Chase & Co.		100,238		10,147,093
KeyCorp		35,451		558,353
M&T Bank Corp.		3,085		484,407
People's United Financial, Inc.1		9,033		148,503
PNC Financial Services Group, Inc. (The)		12,597		1,545,148
Regions Financial Corp.		33,449		473,303
SunTrust Banks, Inc.		13,271		786,307
SVB Financial Group2		900		200,124
U.S. Bancorp		40,348		1,944,370
Wells Fargo & Co.		163,338		7,892,492
Zions Bancorp NA		5,057		229,638
Total Banks				44,103,904
Capital Goods—8.0%
3M Co.		13,212		2,745,189
A.O. Smith Corp.		5,084		271,079
Allegion PLC1		2,522		228,771
AMETEK, Inc.		4,993		414,269
Arconic, Inc.1		61,412		1,173,583
Boeing Co. (The)		19,524		7,446,844
Caterpillar, Inc.		33,756		4,573,600
Cummins, Inc.		12,462		1,967,376
Deere & Co.		19,588		3,130,946
Dover Corp.		6,605		619,549
Eaton Corp. PLC		22,055		1,776,751
Emerson Electric Co.		21,576		1,477,309
Fastenal Co.1		6,550		421,231
Flowserve Corp.		7,236		326,633
Fluor Corp.		42,528		1,565,030
Fortive Corp.		7,250		608,203
Fortune Brands Home & Security, Inc.		9,632		458,580
General Dynamics Corp.		17,651		2,987,961
General Electric Co.		1,028,645		10,276,164
Harris Corp.		3,227		515,384
Honeywell International, Inc.		22,339		3,550,114
Huntington Ingalls Industries, Inc.		3,312		686,246
Illinois Tool Works, Inc.		8,505		1,220,723
Ingersoll-Rand PLC		12,173		1,314,075
Jacobs Engineering Group, Inc.		17,265		1,298,155
Johnson Controls International PLC		66,465		2,455,217
L3 Technologies, Inc.		3,986		822,591
Lockheed Martin Corp.		14,473		4,344,216
Masco Corp.		17,271		678,923
		Shares		Value
Capital Goods (Continued)
Northrop Grumman Corp.		8,836	$	2,382,186
PACCAR, Inc.		28,293		1,927,885
Parker-Hannifin Corp.		6,960		1,194,475
Pentair PLC		6,819		303,514
Quanta Services, Inc.		25,729		971,012
Raytheon Co.		12,127		2,208,084
Rockwell Automation, Inc.		3,120		547,435
Roper Technologies, Inc.		1,324		452,768
Snap-on, Inc.1		2,096		328,066
Stanley Black & Decker, Inc.		8,765		1,193,530
Textron, Inc.		22,158		1,122,524
TransDigm Group, Inc.2		750		340,493
United Rentals, Inc.2		5,292		604,611
United Technologies Corp.		43,433		5,598,079
W.W. Grainger, Inc.		3,100		932,883
Wabtec Corp.		5,046		371,991
Xylem, Inc.1		5,621		444,284
Total Capital Goods				80,278,532
Commercial & Professional Services—0.5%
Cintas Corp.		2,687		543,069
Copart, Inc.1,2		2,608		158,019
Equifax, Inc.		2,548		301,938
IHS Markit Ltd.2		6,186		336,395
Nielsen Holdings PLC		20,285		480,146
Republic Services, Inc.		10,431		838,444
Robert Half International, Inc.		7,270		473,713
Rollins, Inc.1		3,681		153,203
Verisk Analytics, Inc.		1,540		204,820
Waste Management, Inc.		12,200		1,267,702
Total Commercial & Professional Services				4,757,449
Consumer Durables & Apparel—1.6%
Capri Holdings Ltd.2		9,423		431,102
D.R. Horton, Inc.		32,605		1,349,195
Garmin Ltd.		3,279		283,142
Hanesbrands, Inc.1		30,137		538,850
Hasbro, Inc.1		4,257		361,930
Leggett & Platt, Inc.1		7,817		330,034
Lennar Corp., Class A		34,925		1,714,468
Mattel, Inc.1,2		25,220		327,860
Mohawk Industries, Inc.2		6,127		772,921
Newell Brands, Inc.1		51,641		792,173
NIKE, Inc., Class B		36,358		3,061,707
PulteGroup, Inc.		29,775		832,509
PVH Corp.		7,102		866,089
Ralph Lauren Corp.		4,203		545,045
Tapestry, Inc.		14,460		469,805
Under Armour, Inc., Class A2		9,825		207,701
Under Armour, Inc., Class C1,2		10,981		207,211
VF Corp.		13,085		1,137,217
Whirlpool Corp.		12,399		1,647,703
Total Consumer Durables & Apparel				15,876,662
Consumer Services—1.2%
Carnival Corp.		27,832		1,411,639
Chipotle Mexican Grill, Inc.2		639		453,888
Darden Restaurants, Inc.		6,242		758,216
H&R Block, Inc.		10,327		247,228
Hilton Worldwide Holdings, Inc.		8,751		727,296
Marriott International, Inc., Class A		13,889		1,737,375
McDonald's Corp.		9,482		1,800,632

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer S&P 500 Revenue ETF

	Shares		Value
Consumer Services (Continued)
MGM Resorts International	35,969	$	922,964
Norwegian Cruise Line Holdings Ltd.2	8,923		490,408
Royal Caribbean Cruises Ltd.	6,602		756,721
Starbucks Corp.	29,518		2,194,368
Wynn Resorts Ltd.	4,552		543,145
Yum! Brands, Inc.	4,763		475,395
Total Consumer Services			12,519,275
Diversified Financials—4.9%
Affiliated Managers Group, Inc.	1,881		201,474
American Express Co.	32,474		3,549,408
Ameriprise Financial, Inc.	8,207		1,051,317
Bank of New York Mellon Corp. (The)	30,226		1,524,297
Berkshire Hathaway, Inc., Class B2	101,333		20,356,786
BlackRock, Inc.	2,729		1,166,293
Capital One Financial Corp.	32,521		2,656,640
Cboe Global Markets, Inc.	2,434		232,301
Charles Schwab Corp. (The)	20,491		876,195
CME Group, Inc.	2,037		335,249
Discover Financial Services	14,898		1,060,142
E*TRADE Financial Corp.	5,250		243,757
Franklin Resources, Inc.	15,477		512,908
Goldman Sachs Group, Inc. (The)	20,785		3,990,512
Intercontinental Exchange, Inc.	7,011		533,818
Invesco Ltd.1	22,757		439,438
Jefferies Financial Group, Inc.	37,796		710,187
Moody's Corp.	2,119		383,730
Morgan Stanley	98,394		4,152,227
MSCI, Inc.	638		126,860
Nasdaq, Inc.	4,271		373,670
Northern Trust Corp.	6,024		544,630
Raymond James Financial, Inc.	7,726		621,248
S&P Global, Inc.	2,582		543,640
State Street Corp.	14,859		977,871
Synchrony Financial	38,937		1,242,090
T. Rowe Price Group, Inc.	4,495		450,039
Total Diversified Financials			48,856,727
Energy—8.9%
Anadarko Petroleum Corp.	25,186		1,145,459
Apache Corp.1	18,615		645,196
Baker Hughes a GE Co.1	72,042		1,997,004
Cabot Oil & Gas Corp.	7,042		183,796
Chevron Corp.	106,147		13,075,187
Cimarex Energy Co.	2,774		193,903
Concho Resources, Inc.	3,353		372,049
ConocoPhillips	45,032		3,005,436
Devon Energy Corp.	35,608		1,123,789
Diamondback Energy, Inc.	1,848		187,627
EOG Resources, Inc.	16,181		1,540,108
Exxon Mobil Corp.	287,083		23,196,306
Halliburton Co.	70,774		2,073,678
Helmerich & Payne, Inc.	4,088		227,129
Hess Corp.	9,398		566,042
HollyFrontier Corp.	29,424		1,449,721
Kinder Morgan, Inc.	58,614		1,172,866
Marathon Oil Corp.	29,387		491,057
Marathon Petroleum Corp.	135,492		8,109,196
National Oilwell Varco, Inc.	26,480		705,427
Noble Energy, Inc.1	16,872		417,245
	Shares		Value
Energy (Continued)
Occidental Petroleum Corp.	22,778	$	1,507,904
ONEOK, Inc.	15,697		1,096,278
Phillips 66	95,598		9,098,062
Pioneer Natural Resources Co.	5,829		887,640
Schlumberger Ltd.	64,392		2,805,559
TechnipFMC PLC	48,495		1,140,602
Valero Energy Corp.	118,911		10,087,220
Williams Cos., Inc. (The)	26,125		750,310
Total Energy			89,251,796
Food & Staples Retailing—8.1%
Costco Wholesale Corp.	51,679		12,513,553
Kroger Co. (The)	410,935		10,109,001
Sysco Corp.	73,474		4,905,125
Walgreens Boots Alliance, Inc.	182,056		11,518,683
Walmart, Inc.	427,719		41,715,434
Total Food & Staples Retailing			80,761,796
Food, Beverage & Tobacco—3.5%
Altria Group, Inc.	28,721		1,649,447
Archer-Daniels-Midland Co.	124,284		5,360,369
Brown-Forman Corp., Class B1	5,334		281,529
Campbell Soup Co.	21,943		836,687
Coca-Cola Co. (The)	57,259		2,683,157
Conagra Brands, Inc.	29,496		818,219
Constellation Brands, Inc., Class A	3,940		690,800
General Mills, Inc.	28,329		1,466,026
Hershey Co. (The)	5,677		651,890
Hormel Foods Corp.	18,044		807,649
JM Smucker Co. (The)	6,103		711,000
Kellogg Co.	20,121		1,154,543
Kraft Heinz Co. (The)	66,285		2,164,205
Lamb Weston Holdings, Inc.	4,181		313,324
McCormick & Co., Inc.	3,199		481,865
Molson Coors Brewing Co., Class B	14,676		875,423
Mondelez International, Inc., Class A	45,112		2,251,991
Monster Beverage Corp.2	5,090		277,812
PepsiCo, Inc.	45,460		5,571,123
Philip Morris International, Inc.	27,431		2,424,626
Tyson Foods, Inc., Class A	51,638		3,585,226
Total Food, Beverage & Tobacco			35,056,911
Health Care Equipment & Services—12.5%
Abbott Laboratories	32,330		2,584,460
ABIOMED, Inc.2	190		54,262
Align Technology, Inc.2	691		196,472
AmerisourceBergen Corp.	183,942		14,627,068
Anthem, Inc.	25,458		7,305,937
Baxter International, Inc.	12,160		988,730
Becton Dickinson and Co.	5,604		1,399,487
Boston Scientific Corp.2	20,146		773,203
Cardinal Health, Inc.	242,127		11,658,415
Centene Corp.2	86,132		4,573,609
Cerner Corp.2	7,842		448,641
Cigna Corp.	24,358		3,917,253
Cooper Cos., Inc. (The)	713		211,169
CVS Health Corp.	298,015		16,071,949
Danaher Corp.	12,887		1,701,342
DaVita, Inc.2	18,511		1,004,962
DENTSPLY SIRONA, Inc.	6,709		332,699
Edwards Lifesciences Corp.2	1,782		340,950
HCA Healthcare, Inc.	30,324		3,953,643

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer S&P 500 Revenue ETF

	Shares		Value
Health Care Equipment & Services (Continued)
Henry Schein, Inc.1,2	18,269	$	1,098,150
Hologic, Inc.1,2	5,669		274,380
Humana, Inc.	17,191		4,572,806
IDEXX Laboratories, Inc.2	890		199,004
Intuitive Surgical, Inc.2	565		322,378
Laboratory Corp. of America Holdings2	6,271		959,338
McKesson Corp.	155,084		18,154,133
Medtronic PLC	27,347		2,490,765
Quest Diagnostics, Inc.	7,237		650,751
ResMed, Inc.	1,971		204,925
Stryker Corp.	5,885		1,162,405
Teleflex, Inc.	693		209,397
UnitedHealth Group, Inc.	77,462		19,153,254
Universal Health Services, Inc., Class B	6,759		904,151
Varian Medical Systems, Inc.2	1,811		256,655
WellCare Health Plans, Inc.1,2	6,902		1,861,814
Zimmer Biomet Holdings, Inc.	5,287		675,150
Total Health Care Equipment & Services			125,293,707
Household & Personal Products—1.1%
Church & Dwight Co., Inc.	5,119		364,626
Clorox Co. (The)1	3,207		514,595
Colgate-Palmolive Co.	19,268		1,320,629
Coty, Inc., Class A1	66,790		768,085
Estee Lauder Cos., Inc., (The), Class A	7,370		1,220,104
Kimberly-Clark Corp.	12,927		1,601,655
Procter & Gamble Co. (The)	55,569		5,781,955
Total Household & Personal Products			11,571,649
Insurance—3.9%
Aflac, Inc.	37,008		1,850,400
Allstate Corp. (The)	33,975		3,199,766
American International Group, Inc.	90,638		3,902,872
Aon PLC	5,379		918,195
Arthur J. Gallagher & Co.	7,061		551,464
Assurant, Inc.	6,490		615,966
Brighthouse Financial, Inc.2	17,233		625,386
Chubb Ltd.	19,959		2,795,857
Cincinnati Financial Corp.	5,185		445,392
Everest Re Group Ltd.	2,727		588,923
Hartford Financial Services Group, Inc. (The)	31,581		1,570,207
Lincoln National Corp.	21,813		1,280,423
Loews Corp.	24,305		1,164,939
Marsh & McLennan Cos., Inc.	13,483		1,266,054
MetLife, Inc.	122,657		5,221,508
Principal Financial Group, Inc.1	23,144		1,161,597
Progressive Corp. (The)	35,900		2,588,031
Prudential Financial, Inc.	53,207		4,888,659
Torchmark Corp.	4,300		352,385
Travelers Cos., Inc. (The)	18,725		2,568,321
Unum Group	26,121		883,673
Willis Towers Watson PLC	4,064		713,842
Total Insurance			39,153,860
Materials—3.0%
Air Products & Chemicals, Inc.	3,992		762,312
Albemarle Corp.1	3,299		270,452
Avery Dennison Corp.	5,355		605,115
Ball Corp.	17,134		991,373
Celanese Corp.	5,813		573,220
CF Industries Holdings, Inc.	8,914		364,404
DowDuPont, Inc.	127,407		6,792,067
	Shares		Value
Materials (Continued)
Eastman Chemical Co.	10,388	$	788,242
Ecolab, Inc.	7,006		1,236,839
FMC Corp.	4,946		379,952
Freeport-McMoRan, Inc.	127,108		1,638,422
International Flavors & Fragrances, Inc.1	2,571		331,119
International Paper Co.	41,271		1,909,609
Linde PLC	5,752		1,011,949
LyondellBasell Industries NV, Class A	36,267		3,049,329
Martin Marietta Materials, Inc.1	1,752		352,467
Mosaic Co. (The)	27,731		757,334
Newmont Mining Corp.	17,461		624,580
Nucor Corp.	35,144		2,050,653
Packaging Corp. of America	5,841		580,479
PPG Industries, Inc.	11,363		1,282,542
Sealed Air Corp.	8,556		394,089
Sherwin-Williams Co. (The)	3,407		1,467,429
Vulcan Materials Co.	3,129		370,474
WestRock Co.	35,942		1,378,376
Total Materials			29,962,827
Media & Entertainment—4.3%
Activision Blizzard, Inc.	14,443		657,590
Alphabet, Inc., Class A2	4,826		5,679,671
Alphabet, Inc., Class C2	4,897		5,745,699
CBS Corp., Class B	23,995		1,140,482
Charter Communications, Inc., Class A2	10,474		3,633,535
Comcast Corp., Class A	200,498		8,015,910
Discovery, Inc., Class A1,2	14,745		398,410
Discovery, Inc., Class C2	15,702		399,145
DISH Network Corp., Class A1,2	34,767		1,101,766
Electronic Arts, Inc.2	4,379		445,038
Facebook, Inc., Class A2	26,675		4,446,456
Fox Corp., Class A2	8,330		305,794
Fox Corp., Class B2	8,369		300,280
Interpublic Group of Cos., Inc. (The)	35,386		743,460
Netflix, Inc.2	3,661		1,305,366
News Corp., Class A	31,376		390,317
News Corp., Class B	30,931		386,328
Omnicom Group, Inc.1	16,749		1,222,510
Take-Two Interactive Software, Inc.2	2,403		226,771
TripAdvisor, Inc.1,2	2,572		132,329
Twitter, Inc.2	8,209		269,912
Viacom, Inc., Class B	36,387		1,021,383
Walt Disney Co. (The)	42,585		4,728,213
Total Media & Entertainment			42,696,365
Pharmaceuticals, Biotechnology & Life Sciences—3.6%
AbbVie, Inc.	34,211		2,757,064
Agilent Technologies, Inc.	5,183		416,609
Alexion Pharmaceuticals, Inc.2	2,603		351,873
Allergan PLC	8,819		1,291,190
Amgen, Inc.	10,648		2,022,907
Biogen, Inc.2	3,172		749,797
Bristol-Myers Squibb Co.	35,568		1,696,949
Celgene Corp.2	14,670		1,383,968
Eli Lilly & Co.	15,701		2,037,362
Gilead Sciences, Inc.	28,469		1,850,770
Illumina, Inc.2	917		284,903
Incyte Corp.2	1,860		159,979
IQVIA Holdings, Inc.2	6,143		883,670

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer S&P 500 Revenue ETF

	Shares		Value
Pharmaceuticals, Biotechnology & Life Sciences (Continued)
Johnson & Johnson	47,840	$	6,687,554
Merck & Co., Inc.	42,905		3,568,409
Mettler-Toledo International, Inc.2	350		253,050
Mylan NV2	34,802		986,289
Nektar Therapeutics1,2	2,753		92,501
PerkinElmer, Inc.1	2,453		236,371
Perrigo Co. PLC1	8,243		396,983
Pfizer, Inc.	106,283		4,513,839
Regeneron Pharmaceuticals, Inc.2	1,351		554,748
Thermo Fisher Scientific, Inc.	7,898		2,161,841
Vertex Pharmaceuticals, Inc.2	1,394		256,426
Waters Corp.2	823		207,157
Zoetis, Inc.	5,106		514,021
Total Pharmaceuticals, Biotechnology & Life Sciences			36,316,230
Real Estate—0.9%
Alexandria Real Estate Equities, Inc.	734		104,639
American Tower Corp.	3,315		653,254
Apartment Investment & Management Co., Class A	1,648		82,878
AvalonBay Communities, Inc.	938		188,285
Boston Properties, Inc.	1,656		221,705
CBRE Group, Inc., Class A2	34,525		1,707,261
Crown Castle International Corp.	3,629		464,512
Digital Realty Trust, Inc.	2,183		259,777
Duke Realty Corp.	2,576		78,774
Equinix, Inc.	960		435,033
Equity Residential	2,812		211,800
Essex Property Trust, Inc.	406		117,431
Extra Space Storage, Inc.	1,008		102,725
Federal Realty Investment Trust	568		78,299
HCP, Inc.	4,929		154,278
Host Hotels & Resorts, Inc.	23,214		438,745
Iron Mountain, Inc.1	9,858		349,565
Kimco Realty Corp.	5,463		101,065
Macerich Co. (The)1	1,857		80,501
Mid-America Apartment Communities, Inc.	1,212		132,508
Prologis, Inc.	3,238		232,974
Public Storage	1,097		238,905
Realty Income Corp.	1,564		115,048
Regency Centers Corp.	1,425		96,173
SBA Communications Corp.2	826		164,919
Simon Property Group, Inc.	2,627		478,666
SL Green Realty Corp.	1,313		118,065
UDR, Inc.	2,017		91,693
Ventas, Inc.	4,894		312,286
Vornado Realty Trust	2,844		191,799
Welltower, Inc.	5,080		394,208
Weyerhaeuser Co.	24,564		647,016
Total Real Estate			9,044,787
Retailing—7.5%
Advance Auto Parts, Inc.	5,112		871,749
Amazon.com, Inc.2	11,672		20,784,914
AutoZone, Inc.2	980		1,003,638
Best Buy Co., Inc.	51,566		3,664,280
Booking Holdings, Inc.2	686		1,197,008
CarMax, Inc.1,2	24,894		1,737,601
Dollar General Corp.	17,128		2,043,370
Dollar Tree, Inc.2	18,178		1,909,417
	Shares		Value
Retailing (Continued)
eBay, Inc.	24,276	$	901,611
Expedia Group, Inc.1	7,494		891,786
Foot Locker, Inc.	10,614		643,208
Gap, Inc. (The)	51,759		1,355,051
Genuine Parts Co.	14,334		1,605,838
Home Depot, Inc. (The)	48,369		9,281,528
Kohl's Corp.	24,073		1,655,500
L Brands, Inc.1	41,411		1,142,115
LKQ Corp.2	35,199		998,948
Lowe's Cos., Inc.	58,162		6,366,994
Macy's, Inc.	90,202		2,167,554
Nordstrom, Inc.1	29,260		1,298,559
O'Reilly Automotive, Inc.2	2,120		823,196
Ross Stores, Inc.	13,570		1,263,367
Target Corp.	80,243		6,440,303
Tiffany & Co.1	3,822		403,412
TJX Cos., Inc. (The)	62,207		3,310,035
Tractor Supply Co.	7,085		692,630
Ulta Beauty, Inc.2	1,725		601,559
Total Retailing			75,055,171
Semiconductors & Semiconductor Equipment—2.0%
Advanced Micro Devices, Inc.1,2	23,839		608,371
Analog Devices, Inc.	4,786		503,822
Applied Materials, Inc.	36,076		1,430,774
Broadcom, Inc.	6,395		1,923,040
Intel Corp.	109,380		5,873,706
KLA-Tencor Corp.	3,061		365,514
Lam Research Corp.	5,216		933,716
Maxim Integrated Products, Inc.	3,898		207,257
Microchip Technology, Inc.	4,787		397,130
Micron Technology, Inc.2	66,045		2,729,640
NVIDIA Corp.	6,302		1,131,587
Qorvo, Inc.2	3,637		260,882
QUALCOMM, Inc.	32,553		1,856,498
Skyworks Solutions, Inc.	3,833		316,146
Texas Instruments, Inc.	12,193		1,293,311
Xilinx, Inc.	1,983		251,425
Total Semiconductors & Semiconductor Equipment			20,082,819
Software & Services—4.1%
Accenture PLC, Class A	21,119		3,717,366
Adobe, Inc.2	2,854		760,562
Akamai Technologies, Inc.2	3,131		224,524
Alliance Data Systems Corp.	3,797		664,399
ANSYS, Inc.2	590		107,799
Autodesk, Inc.2	1,372		213,785
Automatic Data Processing, Inc.	7,510		1,199,647
Broadridge Financial Solutions, Inc.	3,608		374,113
Cadence Design Systems, Inc.2	2,928		185,957
Citrix Systems, Inc.	2,413		240,480
Cognizant Technology Solutions Corp., Class A	18,360		1,330,182
DXC Technology Co.	27,480		1,767,239
Fidelity National Information Services, Inc.	6,455		730,060
Fiserv, Inc.1,2	5,557		490,572
FleetCor Technologies, Inc.1,2	866		213,547
Fortinet, Inc.2	1,811		152,070
Gartner, Inc.1,2	2,283		346,285
Global Payments, Inc.	2,094		285,873

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer S&P 500 Revenue ETF

	Shares		Value
Software & Services (Continued)
International Business Machines Corp.	47,736	$	6,735,550
Intuit, Inc.	2,117		553,405
Jack Henry & Associates, Inc.	976		135,410
Mastercard, Inc., Class A	5,455		1,284,380
Microsoft Corp.	87,089		10,271,277
Oracle Corp.	61,059		3,279,479
Paychex, Inc.	3,668		294,174
PayPal Holdings, Inc.2	13,103		1,360,616
Red Hat, Inc.2	1,460		266,742
salesforce.com, Inc.2	6,546		1,036,690
Symantec Corp.	17,591		404,417
Synopsys, Inc.2	2,491		286,839
Total System Services, Inc.	3,509		333,390
VeriSign, Inc.2	555		100,766
Visa, Inc., Class A	11,678		1,823,987
Western Union Co. (The)	25,217		465,758
Total Software & Services			41,637,340
Technology Hardware & Equipment—4.4%
Amphenol Corp., Class A	7,156		675,813
Apple, Inc.	122,957		23,355,682
Arista Networks, Inc.2	634		199,368
Cisco Systems, Inc.	80,613		4,352,296
Corning, Inc.	27,069		895,984
F5 Networks, Inc.2	1,120		175,762
FLIR Systems, Inc.	2,906		138,267
Hewlett Packard Enterprise Co.	159,358		2,458,894
HP, Inc.	253,837		4,932,053
IPG Photonics Corp.1,2	800		121,424
Juniper Networks, Inc.	14,666		388,209
Keysight Technologies, Inc.2	3,907		340,690
Motorola Solutions, Inc.	4,287		601,981
NetApp, Inc.	7,935		550,213
Seagate Technology PLC1	19,880		952,053
TE Connectivity Ltd.	14,336		1,157,632
Western Digital Corp.	33,087		1,590,161
Xerox Corp.	26,276		840,306
Total Technology Hardware & Equipment			43,726,788
Telecommunication Services—2.7%
AT&T, Inc.	463,578		14,537,806
CenturyLink, Inc.1	154,426		1,851,568
Verizon Communications, Inc.	187,569		11,090,955
Total Telecommunication Services			27,480,329
Transportation—3.2%
Alaska Air Group, Inc.1	12,048		676,134
American Airlines Group, Inc.1	113,114		3,592,501
C.H. Robinson Worldwide, Inc.	15,411		1,340,603
CSX Corp.	13,827		1,034,536
Delta Air Lines, Inc.	72,604		3,749,996
Expeditors International of Washington, Inc.	8,847		671,487
FedEx Corp.	32,412		5,879,861
JB Hunt Transport Services, Inc.	6,857		694,545
Kansas City Southern	2,005		232,540
Norfolk Southern Corp.	5,250		981,172
Southwest Airlines Co.	34,381		1,784,718
Union Pacific Corp.	11,256		1,882,003
United Continental Holdings, Inc.2	40,620		3,240,664
United Parcel Service, Inc., Class B	55,078		6,154,416
Total Transportation			31,915,176
	Shares		Value
Utilities—2.6%
AES Corp.	49,194	$	889,428
Alliant Energy Corp.	6,202		292,300
Ameren Corp.	7,113		523,161
American Electric Power Co., Inc.	15,980		1,338,325
American Water Works Co., Inc.	2,721		283,691
Atmos Energy Corp.	2,518		259,178
CenterPoint Energy, Inc.1	28,337		869,946
CMS Energy Corp.	10,204		566,730
Consolidated Edison, Inc.	11,919		1,010,850
Dominion Energy, Inc.	14,356		1,100,531
DTE Energy Co.	9,333		1,164,198
Duke Energy Corp.	22,020		1,981,800
Edison International	16,529		1,023,476
Entergy Corp.	9,700		927,611
Evergy, Inc.	6,217		360,897
Eversource Energy	9,825		697,084
Exelon Corp.	60,530		3,034,369
FirstEnergy Corp.	22,710		944,963
NextEra Energy, Inc.	7,002		1,353,627
NiSource, Inc.1	15,125		433,482
NRG Energy, Inc.	19,629		833,840
Pinnacle West Capital Corp.	3,193		305,187
PPL Corp.1	19,726		626,103
Public Service Enterprise Group, Inc.	13,597		807,798
Sempra Energy	7,724		972,143
Southern Co. (The)	37,595		1,942,910
WEC Energy Group, Inc.	8,084		639,283
Xcel Energy, Inc.	16,773		942,810
Total Utilities			26,125,721
Total Common Stocks
(Cost $909,910,906)			999,248,286
Money Market Fund—0.2%
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%3
(Cost $1,628,151)	1,628,151		1,628,151
Investment of Cash Collateral for Securities Loaned—0.0%4
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%3
(Cost $336,747)	336,747		336,747
Total Investments—99.9% (Cost $911,875,804)			1,001,213,184
Other Assets in Excess of Liabilities—0.1%			532,629
Net Assets—100.0%		$	1,001,745,813

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer S&P 500 Revenue ETF

PLC - Public Limited Company

1.	All or a portion of the security was on loan. The aggregate value of the securities on loan was $31,784,468; total value of the collateral held by the Fund was $32,490,432. The total value of the collateral includes non-cash U.S. Treasury securities collateral having a value of $32,153,685.
2.	Non-income producing security.
3.	Rate shown represents annualized 7-day yield as of March 31, 2019.
4.	Less than 0.05%

Schedule of Investments March 31, 2019 Unaudited

Oppenheimer S&P MidCap 400 Revenue ETF

	Shares		Value
COMMON STOCKS—99.8%
Automobiles & Components—3.7%
Adient PLC1		274,806	$	3,561,486
Dana, Inc.		105,068		1,863,906
Delphi Technologies PLC		57,180		1,101,287
Gentex Corp.		21,345		441,414
Goodyear Tire & Rubber Co. (The)		210,204		3,815,203
Thor Industries, Inc.		29,454		1,837,046
Visteon Corp.1,2		9,091		612,279
Total Automobiles & Components				13,232,621
Banks—2.5%
Associated Banc-Corp.		15,962		340,789
BancorpSouth Bank		7,437		209,872
Bank of Hawaii Corp.1		2,084		164,365
Bank OZK1		9,307		269,717
Cathay General Bancorp1		4,632		157,071
Chemical Financial Corp.		5,116		210,575
Commerce Bancshares, Inc.1		5,477		317,995
Cullen/Frost Bankers, Inc.1		3,292		319,554
East West Bancorp, Inc.		8,249		395,705
F.N.B. Corp.1		29,711		314,937
First Horizon National Corp.1		36,447		509,529
Fulton Financial Corp.		13,926		215,574
Hancock Whitney Corp.		7,503		303,121
Home BancShares, Inc.1		10,097		177,404
International Bancshares Corp.		3,796		144,362
LendingTree, Inc.1,2		586		206,014
New York Community Bancorp, Inc.1		34,744		401,988
PacWest Bancorp		7,978		300,053
Pinnacle Financial Partners, Inc.		4,587		250,909
Prosperity Bancshares, Inc.1		2,773		191,503
Signature Bank		3,142		402,396
Sterling Bancorp1		16,255		302,831
Synovus Financial Corp.		10,246		352,053
TCF Financial Corp.		18,160		375,730
Texas Capital Bancshares, Inc.2		5,011		273,550
Trustmark Corp.1		4,657		156,615
UMB Financial Corp.1		4,127		264,293
Umpqua Holdings Corp.		17,969		296,488
United Bankshares, Inc.1		5,446		197,363
Valley National Bancorp		29,640		283,951
Washington Federal, Inc.1		5,415		156,439
Webster Financial Corp.1		5,742		290,947
Wintrust Financial Corp.		5,123		344,932
Total Banks				9,098,625
Capital Goods—10.5%
Acuity Brands, Inc.		6,970		836,470
AECOM1,2		161,084		4,779,362
AGCO Corp.		34,048		2,368,038
Carlisle Cos., Inc.		8,790		1,077,830
Colfax Corp.1,2		33,396		991,193
Crane Co.		9,760		825,891
Curtiss-Wright Corp.		5,017		568,627
Donaldson Co., Inc.1		13,780		689,827
Dycom Industries, Inc.2		15,793		725,530
EMCOR Group, Inc.		27,770		2,029,432
EnerSys		9,338		608,464
GATX Corp.1		4,313		329,384
Graco, Inc.		8,348		413,393
		Shares		Value
Capital Goods (Continued)
Granite Construction, Inc.		16,874	$	728,113
Hubbell, Inc.		9,067		1,069,725
IDEX Corp.		4,140		628,204
ITT, Inc.		11,515		667,870
KBR, Inc.		61,533		1,174,665
Kennametal, Inc.		16,147		593,402
Lennox International, Inc.		3,792		1,002,605
Lincoln Electric Holdings, Inc.		8,556		717,592
MasTec, Inc.1,2		35,785		1,721,258
MSC Industrial Direct Co., Inc., Class A		9,397		777,226
Nordson Corp.		3,978		527,164
NOW, Inc.1,2		54,361		758,880
nVent Electric PLC		19,745		532,720
Oshkosh Corp.		24,321		1,827,237
Regal Beloit Corp.		10,856		888,781
Resideo Technologies, Inc.2		57,212		1,103,619
Teledyne Technologies, Inc.2		3,015		714,585
Terex Corp.		36,354		1,168,054
Timken Co. (The)		20,010		872,836
Toro Co. (The)		9,495		653,636
Trinity Industries, Inc.1		36,274		788,234
Valmont Industries, Inc.		4,879		634,758
Watsco, Inc.1		7,717		1,105,152
Woodward, Inc.		6,369		604,354
Total Capital Goods				37,504,111
Commercial & Professional Services—3.7%
ASGN, Inc.2		13,438		853,179
Brink's Co. (The)		11,440		862,690
Clean Harbors, Inc.2		11,633		832,109
Deluxe Corp.		11,299		493,992
Healthcare Services Group, Inc.1		14,469		477,332
Herman Miller, Inc.		16,469		579,379
HNI Corp.		14,561		528,419
Insperity, Inc.		7,505		928,068
ManpowerGroup, Inc.		65,524		5,418,180
MSA Safety, Inc.		3,166		327,364
Pitney Bowes, Inc.1		127,978		879,209
Stericycle, Inc.1,2		17,331		943,153
Total Commercial & Professional Services				13,123,074
Consumer Durables & Apparel—3.4%
Brunswick Corp.		23,467		1,181,094
Carter’s, Inc.1		8,883		895,318
Deckers Outdoor Corp.2		3,418		502,412
Helen of Troy Ltd.1,2		3,387		392,756
KB Home1		46,215		1,117,016
NVR, Inc.2		619		1,712,773
Polaris Industries, Inc.1		17,020		1,436,999
Skechers U.S.A., Inc., Class A1,2		34,085		1,145,597
Tempur Sealy International, Inc.1,2		11,322		652,940
Toll Brothers, Inc.		49,095		1,777,239
TRI Pointe Group, Inc.1,2		60,470		764,341
Tupperware Brands Corp.		18,163		464,609
Total Consumer Durables & Apparel				12,043,094
Consumer Services—4.1%
Adtalem Global Education, Inc.2		6,349		294,086
Boyd Gaming Corp.1		21,633		591,879
Brinker International, Inc.		17,602		781,177
Caesars Entertainment Corp.1,2		236,679		2,056,740
Cheesecake Factory, Inc. (The)1		12,142		593,987

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer S&P MidCap 400 Revenue ETF

	Shares		Value
Consumer Services (Continued)
Churchill Downs, Inc.	2,752	$	248,396
Cracker Barrel Old Country Store, Inc.1	4,643		750,355
Domino's Pizza, Inc.1	3,266		842,955
Dunkin' Brands Group, Inc.1	4,453		334,420
Eldorado Resorts, Inc.1,2	10,704		499,770
Graham Holdings Co., Class B	947		646,971
International Speedway Corp., Class A	3,691		161,038
Jack in the Box, Inc.1	2,686		217,727
Marriott Vacations Worldwide Corp.	7,314		683,859
Papa John’s International, Inc.1	8,387		444,092
Penn National Gaming, Inc.1,2	37,556		754,876
Scientific Games Corp.1,2	32,519		664,038
Service Corp. International	19,066		765,500
Six Flags Entertainment Corp.	6,944		342,686
Sotheby's1,2	6,190		233,672
Texas Roadhouse, Inc.	9,793		609,027
Weight Watchers International, Inc.1,2	18,564		374,065
Wendy’s Co. (The)1	22,317		399,251
Wyndham Destinations, Inc.	22,550		913,049
Wyndham Hotels & Resorts, Inc.	8,562		428,014
Total Consumer Services			14,631,630
Diversified Financials—1.9%
Eaton Vance Corp.1	10,008		403,423
Evercore, Inc., Class A	5,634		512,694
FactSet Research Systems, Inc.	1,415		351,302
Federated Investors, Inc., Class B1	9,244		270,942
Green Dot Corp., Class A2	4,333		262,796
Interactive Brokers Group, Inc., Class A1	10,930		567,048
Janus Henderson Group PLC1	22,844		570,643
Legg Mason, Inc.	25,898		708,828
MarketAxess Holdings, Inc.1	464		114,181
Navient Corp.	115,149		1,332,274
SEI Investments Co.	7,724		403,579
SLM Corp.	42,494		421,116
Stifel Financial Corp.1	14,328		755,945
Total Diversified Financials			6,674,771
Energy—8.9%
Apergy Corp.2	7,373		302,735
Callon Petroleum Co.1,2	20,446		154,367
Chesapeake Energy Corp.1,2	901,620		2,795,022
CNX Resources Corp.1,2	40,609		437,359
Core Laboratories NV	2,555		176,116
Ensco PLC, Class A1	101,616		399,351
EQT Corp.1	64,369		1,335,013
Equitrans Midstream Corp.	18,040		392,911
Matador Resources Co.1,2	11,877		229,582
McDermott International, Inc.1,2	202,540		1,506,897
Murphy Oil Corp.1	21,473		629,159
Oasis Petroleum, Inc.1,2	97,253		587,408
Oceaneering International, Inc.1,2	32,346		510,096
Patterson-UTI Energy, Inc.1	62,145		871,273
PBF Energy, Inc., Class A	223,664		6,964,897
QEP Resources, Inc.2	63,797		496,979
Range Resources Corp.	83,615		939,833
Rowan Cos. PLC, Class A2	17,854		192,645
SM Energy Co.1	25,940		453,691
Southwestern Energy Co.1,2	215,569		1,011,019
	Shares		Value
Energy (Continued)
Transocean Ltd.2	87,215	$	759,643
World Fuel Services Corp.	334,908		9,675,492
WPX Energy, Inc.2	65,070		853,068
Total Energy			31,674,556
Food & Staples Retailing—1.0%
Casey's General Stores, Inc.1	17,092		2,200,937
Sprouts Farmers Market, Inc.1,2	56,134		1,209,126
Total Food & Staples Retailing			3,410,063
Food, Beverage & Tobacco—2.2%
Boston Beer Co., Inc. (The), Class A2	756		222,816
Flowers Foods, Inc.1	46,308		987,287
Hain Celestial Group, Inc. (The)1,2	26,576		614,437
Ingredion, Inc.	15,264		1,445,348
Lancaster Colony Corp.	2,002		313,693
Post Holdings, Inc.2	14,910		1,631,154
Sanderson Farms, Inc.	6,259		825,187
Tootsie Roll Industries, Inc.1	3,368		125,424
TreeHouse Foods, Inc.1,2	23,380		1,509,179
Total Food, Beverage & Tobacco			7,674,525
Health Care Equipment & Services—5.6%
Acadia Healthcare Co., Inc.1,2	24,776		726,185
Allscripts Healthcare Solutions, Inc.1,2	46,601		444,573
Amedisys, Inc.2	3,350		412,921
Avanos Medical, Inc.1,2	3,609		154,032
Cantel Medical Corp.	3,271		218,797
Chemed Corp.	1,316		421,212
Covetrus, Inc.2	26,261		836,413
Encompass Health Corp.	17,264		1,008,218
Globus Medical, Inc., Class A2	3,675		181,582
Haemonetics Corp.2	2,641		231,035
HealthEquity, Inc.1,2	866		64,067
Hill-Rom Holdings, Inc.	6,615		700,264
ICU Medical, Inc.2	1,430		342,242
Inogen, Inc.1,2	908		86,596
Integra LifeSciences Holdings Corp.2	6,396		356,385
LivaNova PLC2	2,847		276,871
Masimo Corp.2	1,590		219,865
Medidata Solutions, Inc.1,2	2,096		153,511
MEDNAX, Inc.2	29,043		789,098
Molina Healthcare, Inc.2	34,091		4,839,558
NuVasive, Inc.2	4,522		256,804
Patterson Cos., Inc.	61,113		1,335,319
STERIS PLC	5,460		699,044
Tenet Healthcare Corp.1,2	161,245		4,650,306
West Pharmaceutical Services, Inc.	4,031		444,216
Total Health Care Equipment & Services			19,849,114
Household & Personal Products—0.4%
Edgewell Personal Care Co.1,2	12,226		536,599
Energizer Holdings, Inc.1	9,478		425,847
Nu Skin Enterprises, Inc., Class A	10,900		521,674
Total Household & Personal Products			1,484,120
Insurance—5.3%
Alleghany Corp.2	2,770		1,696,348
American Financial Group, Inc.	17,094		1,644,614
Brown & Brown, Inc.	16,466		485,912
CNO Financial Group, Inc.	63,467		1,026,896
First American Financial Corp.	27,263		1,404,044
Genworth Financial, Inc., Class A1,2	565,259		2,164,942
Hanover Insurance Group, Inc. (The)	10,150		1,158,825

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer S&P MidCap 400 Revenue ETF

	Shares		Value
Insurance (Continued)
Kemper Corp.	11,336	$	863,123
Mercury General Corp.1	16,453		823,802
Old Republic International Corp.	72,891		1,524,880
Primerica, Inc.1	3,847		469,911
Reinsurance Group of America, Inc.	21,641		3,072,589
RenaissanceRe Holdings Ltd.	3,457		496,079
W.R. Berkley Corp.1	22,487		1,905,099
Total Insurance			18,737,064
Materials—8.9%
Allegheny Technologies, Inc.1,2	37,513		959,207
AptarGroup, Inc.	6,559		697,812
Ashland Global Holdings, Inc.	10,703		836,225
Bemis Co., Inc.1	18,379		1,019,667
Cabot Corp.	18,224		758,665
Carpenter Technology Corp.	12,327		565,193
Chemours Co. (The)	41,602		1,545,930
Commercial Metals Co.	73,780		1,260,162
Compass Minerals International, Inc.	7,067		384,233
Domtar Corp.	26,050		1,293,383
Eagle Materials, Inc.	4,201		354,144
Greif, Inc., Class A	22,881		943,841
Louisiana-Pacific Corp.	26,684		650,556
Minerals Technologies, Inc.	7,249		426,169
NewMarket Corp.1	1,228		532,412
Olin Corp.1	69,068		1,598,234
Owens-Illinois, Inc.	83,712		1,588,854
PolyOne Corp.	27,001		791,399
Reliance Steel & Aluminum Co.	32,074		2,894,999
Royal Gold, Inc.	1,147		104,297
RPM International, Inc.	22,933		1,331,031
Scotts Miracle-Gro Co., (The)1	7,949		624,632
Sensient Technologies Corp.1	5,178		351,017
Silgan Holdings, Inc.	37,284		1,104,725
Sonoco Products Co.	22,036		1,355,875
Steel Dynamics, Inc.	81,797		2,884,980
United States Steel Corp.1	175,730		3,424,978
Valvoline, Inc.1	29,309		543,975
Worthington Industries, Inc.	25,165		939,158
Total Materials			31,765,753
Media & Entertainment—2.0%
AMC Networks, Inc., Class A1,2	11,353		644,396
Cable One, Inc.	278		272,824
Cars.com, Inc.1,2	6,937		158,164
Cinemark Holdings, Inc.	19,730		789,003
John Wiley & Sons, Inc., Class A	9,566		423,008
Live Nation Entertainment, Inc.1,2	42,577		2,705,342
Meredith Corp.	12,750		704,565
New York Times Co., (The), Class A	12,501		410,658
TEGNA, Inc.	34,380		484,758
World Wrestling Entertainment, Inc., Class A	2,641		229,186
Yelp, Inc.1,2	6,468		223,146
Total Media & Entertainment			7,045,050
Pharmaceuticals, Biotechnology & Life Sciences—1.5%
Bio-Rad Laboratories, Inc., Class A2	1,796		549,001
Bio-Techne Corp.	858		170,356
Catalent, Inc.2	14,046		570,127
Charles River Laboratories International, Inc.2	3,915		568,654
Exelixis, Inc.2	8,819		209,892
	Shares		Value
Pharmaceuticals, Biotechnology & Life Sciences (Continued)
Ligand Pharmaceuticals, Inc.1,2	566	$	71,152
Mallinckrodt PLC2	30,150		655,461
PRA Health Sciences, Inc.2	6,721		741,259
Prestige Consumer Healthcare, Inc.1,2	8,698		260,157
Syneos Health, Inc.1,2	24,860		1,286,754
United Therapeutics Corp.2	3,508		411,734
Total Pharmaceuticals, Biotechnology & Life Sciences			5,494,547
Real Estate—3.5%
Alexander & Baldwin, Inc.	6,860		174,518
American Campus Communities, Inc.	4,618		219,724
Brixmor Property Group, Inc.	16,693		306,650
Camden Property Trust	2,303		233,754
CoreCivic, Inc.	22,461		436,866
CoreSite Realty Corp.	1,280		136,986
Corporate Office Properties Trust	5,277		144,062
Cousins Properties, Inc.	11,701		113,032
CyrusOne, Inc.	3,922		205,670
Douglas Emmett, Inc.	5,278		213,337
EPR Properties	2,273		174,794
First Industrial Realty Trust, Inc.	2,833		100,175
GEO Group, Inc. (The)	27,305		524,256
Healthcare Realty Trust, Inc.	3,427		110,041
Highwoods Properties, Inc.	3,843		179,776
Hospitality Properties Trust	20,930		550,668
JBG SMITH Properties	3,399		140,549
Jones Lang LaSalle, Inc.	24,305		3,747,345
Kilroy Realty Corp.	2,400		182,304
Lamar Advertising Co., Class A	5,007		396,855
Liberty Property Trust	3,557		172,230
Life Storage, Inc.	1,384		134,622
Mack-Cali Realty Corp.	6,103		135,487
Medical Properties Trust, Inc.	10,365		191,856
National Retail Properties, Inc.	2,820		156,200
Omega Healthcare Investors, Inc.	5,807		221,537
Pebblebrook Hotel Trust	6,243		193,908
PotlatchDeltic, Corp.	6,580		248,658
Rayonier, Inc.	6,749		212,728
Realogy Holdings Corp.1	118,083		1,346,146
Sabra Health Care REIT, Inc.	8,474		164,989
Senior Housing Properties Trust	21,855		257,452
Tanger Factory Outlet Centers, Inc.1	5,788		121,432
Taubman Centers, Inc.	2,983		157,741
Uniti Group, Inc.	29,615		331,392
Urban Edge Properties	4,662		88,578
Weingarten Realty Investors	4,671		137,187
Total Real Estate			12,563,505
Retailing—7.2%
Aaron’s, Inc.	17,291		909,507
American Eagle Outfitters, Inc.	47,482		1,052,676
AutoNation, Inc.1,2	152,374		5,442,799
Bed Bath & Beyond, Inc.1	198,149		3,366,551
Dick’s Sporting Goods, Inc.1	54,208		1,995,396
Dillard's, Inc., Class A	22,040		1,587,321
Five Below, Inc.2	3,033		376,850
Michaels Cos., Inc. (The)1,2	101,404		1,158,034
Murphy USA, Inc.2	44,250		3,788,685
Ollie's Bargain Outlet Holdings, Inc.1,2	3,590		306,335

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer S&P MidCap 400 Revenue ETF

	Shares		Value
Retailing (Continued)
Pool Corp.	4,577	$	755,068
Sally Beauty Holdings, Inc.1,2	53,393		982,965
Signet Jewelers Ltd.1	58,089		1,577,697
Urban Outfitters, Inc.2	31,987		948,095
Williams-Sonoma, Inc.1	23,049		1,296,967
Total Retailing			25,544,946
Semiconductors & Semiconductor Equipment—1.1%
Cirrus Logic, Inc.2	7,425		312,370
Cree, Inc.1,2	7,262		415,532
Cypress Semiconductor Corp.	39,974		596,412
First Solar, Inc.1,2	10,454		552,389
MKS Instruments, Inc.	6,304		586,587
Monolithic Power Systems, Inc.	1,033		139,961
Silicon Laboratories, Inc.2	2,625		212,257
Synaptics, Inc.1,2	9,278		368,801
Teradyne, Inc.	12,921		514,773
Universal Display Corp.	400		61,140
Versum Materials, Inc.	6,745		339,341
Total Semiconductors & Semiconductor Equipment			4,099,563
Software & Services—3.3%
ACI Worldwide, Inc.2	7,535		247,675
Blackbaud, Inc.1	2,658		211,922
CACI International, Inc., Class A2	6,169		1,122,881
CDK Global, Inc.	9,495		558,496
CommVault Systems, Inc.2	2,652		171,691
CoreLogic, Inc.2	11,495		428,304
Fair Isaac Corp.2	1,028		279,236
j2 Global, Inc.1	3,416		295,826
Leidos Holdings, Inc.	39,191		2,511,751
LiveRamp Holdings, Inc.1,2	2,506		136,752
LogMeIn, Inc.	3,587		287,319
Manhattan Associates, Inc.1,2	2,502		137,885
MAXIMUS, Inc.	8,329		591,192
Perspecta, Inc.	42,719		863,778
PTC, Inc.2	3,420		315,256
Sabre Corp.	43,743		935,663
Science Applications International Corp.	15,253		1,173,718
Teradata Corp.1,2	10,867		474,345
Tyler Technologies, Inc.2	1,119		228,724
Ultimate Software Group, Inc. (The)2	815		269,056
WEX, Inc.2	1,981		380,332
Total Software & Services			11,621,802
Technology Hardware & Equipment—11.7%
ARRIS International PLC2	50,744		1,604,018
Arrow Electronics, Inc.2	91,913		7,082,816
Avnet, Inc.	113,329		4,915,079
Belden, Inc.	10,706		574,912
Ciena Corp.2	18,905		705,913
Cognex Corp.1	3,733		189,860
Coherent, Inc.1,2	3,219		456,197
InterDigital, Inc.	1,110		73,238
Jabil, Inc.	203,679		5,415,824
Littelfuse, Inc.	2,171		396,164
Lumentum Holdings, Inc.1,2	6,753		381,815
National Instruments Corp.	7,266		322,320
NCR Corp.1,2	57,616		1,572,341
NetScout Systems, Inc.1,2	8,082		226,862
	Shares		Value
Technology Hardware & Equipment (Continued)
Plantronics, Inc.	7,119	$	328,257
SYNNEX Corp.1	51,988		4,959,135
Tech Data Corp.2	93,590		9,584,552
Trimble, Inc.2	19,425		784,770
ViaSat, Inc.1,2	6,237		483,367
Vishay Intertechnology, Inc.	36,309		670,627
Zebra Technologies Corp., Class A2	4,964		1,040,107
Total Technology Hardware & Equipment			41,768,174
Telecommunication Services—0.3%
Telephone & Data Systems, Inc.	39,217		1,205,138
Transportation—4.6%
Avis Budget Group, Inc.2	63,437		2,211,414
Genesee & Wyoming, Inc., Class A2	6,973		607,627
JetBlue Airways Corp.2	113,509		1,857,007
Kirby Corp.1,2	9,943		746,819
Knight-Swift Transportation Holdings, Inc.1	39,240		1,282,363
Landstar System, Inc.	10,367		1,134,046
Old Dominion Freight Line, Inc.	6,754		975,210
Ryder System, Inc.	34,245		2,122,848
Werner Enterprises, Inc.1	17,250		589,088
XPO Logistics, Inc.1,2	89,495		4,809,461
Total Transportation			16,335,883
Utilities—2.5%
ALLETE, Inc.	4,328		355,891
Aqua America, Inc.1	5,616		204,647
Black Hills Corp.	5,742		425,310
Hawaiian Electric Industries, Inc.	17,302		705,402
IDACORP, Inc.	3,253		323,804
MDU Resources Group, Inc.	41,542		1,073,030
National Fuel Gas Co.	6,978		425,379
New Jersey Resources Corp.1	14,622		728,029
NorthWestern Corp.	4,048		285,020
OGE Energy Corp.	12,772		550,729
ONE Gas, Inc.	4,438		395,115
PNM Resources, Inc.	7,467		353,488
Southwest Gas Holdings, Inc.	8,319		684,321
Spire, Inc.	6,035		496,620
UGI Corp.	34,088		1,889,157
Total Utilities			8,895,942
Total Common Stocks
(Cost $333,423,232)			355,477,671
Money Market Fund—0.0%3
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%4
(Cost $12,159)	12,159		12,159
Investment of Cash Collateral for Securities Loaned—2.2%
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%4
(Cost $7,866,039)	7,866,039		7,866,039
Total Investments—102.0% (Cost $341,301,430)			363,355,869
Liabilities in Excess of Other Assets—(2.0)%			(7,233,816	)
Net Assets—100.0%		$	356,122,053

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer S&P MidCap 400 Revenue ETF

 

PLC	-	Public Limited Company
REIT	-	Real Estate Investment Trust

1.	All or a portion of the security was on loan. The aggregate value of the securities on loan was $89,436,601; total value of the collateral held by the Fund was $91,374,076. The total value of the collateral includes non-cash U.S. Treasury securities collateral having a value of $83,508,037.
2.	Non-income producing security.
3.	Less than 0.05%
4.	Rate shown represents annualized 7-day yield as of March 31, 2019.

Schedule of Investments March 31, 2019 Unaudited

Oppenheimer S&P SmallCap 600 Revenue ETF

	Shares		Value
COMMON STOCKS—99.7%
Automobiles & Components—3.2%
American Axle & Manufacturing Holdings, Inc.1,2		267,502	$	3,827,954
Cooper Tire & Rubber Co.1		51,830		1,549,199
Cooper-Standard Holdings, Inc.2		34,442		1,617,396
Dorman Products, Inc.1,2		6,262		551,620
Fox Factory Holding Corp.1,2		5,194		363,009
Garrett Motion, Inc.2		119,801		1,764,669
Gentherm, Inc.1,2		14,419		531,484
LCI Industries1		16,770		1,288,271
Motorcar Parts of America, Inc.1,2		12,585		237,479
Standard Motor Products, Inc.		12,193		598,676
Superior Industries International, Inc.		145,519		692,670
Winnebago Industries, Inc.		34,732		1,081,902
Total Automobiles & Components				14,104,329
Banks—2.8%
Ameris Bancorp		7,455		256,079
Axos Financial, Inc.1,2		10,516		304,543
Banc of California, Inc.		15,964		220,942
Banner Corp.		5,066		274,425
Berkshire Hills Bancorp, Inc.1		10,392		283,078
Boston Private Financial Holdings, Inc.		20,302		222,510
Brookline Bancorp, Inc.		11,879		171,058
Central Pacific Financial Corp.		4,405		127,040
City Holding Co.		1,567		119,390
Columbia Banking System, Inc.1		8,787		287,247
Community Bank System, Inc.1		5,132		306,740
Customers Bancorp, Inc.2		13,131		240,429
CVB Financial Corp.		10,073		212,037
Dime Community Bancshares, Inc.1		6,250		117,062
Eagle Bancorp, Inc.1,2		3,979		199,746
Fidelity Southern Corp.		5,553		152,097
First BanCorp		34,611		396,642
First Commonwealth Financial Corp.		15,159		191,003
First Financial Bancorp		13,498		324,762
First Midwest Bancorp, Inc.		17,947		367,196
Flagstar Bancorp, Inc.		18,949		623,801
Franklin Financial Network, Inc.1		3,086		89,525
Glacier Bancorp, Inc.		7,673		307,457
Great Western Bancorp, Inc.		8,841		279,287
Hanmi Financial Corp.		6,429		136,745
Heritage Financial Corp.1		3,998		120,500
HomeStreet, Inc.2		11,184		294,698
Hope Bancorp, Inc.1		27,743		362,878
Independent Bank Corp.		2,708		219,375
LegacyTexas Financial Group, Inc.		6,264		234,211
Meta Financial Group, Inc.		10,698		210,537
National Bank Holdings Corp., Class A		4,603		153,096
NBT Bancorp, Inc.1		6,763		243,536
NMI Holdings, Inc., Class A2		5,927		153,331
Northfield Bancorp, Inc.1		5,787		80,439
Northwest Bancshares, Inc.1		14,176		240,567
OFG Bancorp		11,779		233,106
Old National Bancorp1		25,648		420,627
Opus Bank		7,276		144,065
Oritani Financial Corp.1		4,877		81,104
Pacific Premier Bancorp, Inc.		9,232		244,925
Preferred Bank1		2,259		101,587
		Shares		Value
Banks (Continued)
Provident Financial Services, Inc.		8,371	$	216,725
S&T Bancorp, Inc.1		4,586		181,285
Seacoast Banking Corp. of Florida1,2		5,491		144,688
ServisFirst Bancshares, Inc.		5,512		186,085
Simmons First National Corp., Class A1		17,466		427,568
Southside Bancshares, Inc.1		4,262		141,626
Tompkins Financial Corp.1		2,224		169,180
Triumph Bancorp, Inc.2		4,942		145,245
TrustCo Bank Corp. NY		13,098		101,640
United Community Banks, Inc.		11,993		298,985
Veritex Holdings, Inc.		3,154		76,390
Walker & Dunlop, Inc.		7,070		359,934
Westamerica Bancorporation1		1,691		104,504
Total Banks				12,303,278
Capital Goods—11.3%
AAON, Inc.1		5,563		256,899
AAR Corp.		29,900		972,049
Actuant Corp., Class A		26,719		651,142
Aegion Corp.2		42,499		746,707
Aerojet Rocketdyne Holdings, Inc.1,2		30,668		1,089,634
Aerovironment, Inc.1,2		2,242		153,375
Alamo Group, Inc.		5,458		545,473
Albany International Corp., Class A		7,018		502,419
American Woodmark Corp.1,2		10,970		906,451
Apogee Enterprises, Inc.1		21,452		804,236
Applied Industrial Technologies, Inc.		32,060		1,906,608
Arcosa, Inc.		23,091		705,430
Astec Industries, Inc.		16,031		605,331
Axon Enterprise, Inc.2		4,780		260,080
AZZ, Inc.		11,267		461,158
Barnes Group, Inc.		14,319		736,140
Briggs & Stratton Corp.		79,944		945,738
Chart Industries, Inc.2		7,145		646,765
CIRCOR International, Inc.1,2		20,649		673,157
Comfort Systems USA, Inc.		22,360		1,171,440
Cubic Corp.		12,087		679,773
DXP Enterprises, Inc.2		14,803		576,133
Encore Wire Corp.		11,818		676,226
EnPro Industries, Inc.1		12,240		788,868
ESCO Technologies, Inc.		6,182		414,380
Federal Signal Corp.		24,203		629,036
Franklin Electric Co., Inc.		13,259		677,402
Gibraltar Industries, Inc.2		13,623		553,230
Greenbrier Cos., Inc. (The)1		35,093		1,131,047
Griffon Corp.1		63,213		1,168,176
Harsco Corp.2		41,543		837,507
Hillenbrand, Inc.		22,046		915,570
Insteel Industries, Inc.		11,797		246,793
John Bean Technologies Corp.1		11,518		1,058,389
Kaman Corp.		17,157		1,002,655
Lindsay Corp.1		3,087		298,791
Lydall, Inc.2		17,074		400,556
Mercury Systems, Inc.1,2		5,124		328,346
Moog, Inc., Class A		16,703		1,452,326
Mueller Industries, Inc.		41,243		1,292,556
MYR Group, Inc.2		21,970		760,821
National Presto Industries, Inc.		1,635		177,479
Orion Group Holdings, Inc.2		81,706		238,582

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer S&P SmallCap 600 Revenue ETF

	Shares		Value
Capital Goods (Continued)
Patrick Industries, Inc.1,2	26,747	$	1,212,174
PGT Innovations, Inc.2	26,291		364,130
Powell Industries, Inc.	8,181		217,206
Proto Labs, Inc.2	2,247		236,250
Quanex Building Products Corp.	32,294		513,152
Raven Industries, Inc.	5,895		226,191
Simpson Manufacturing Co., Inc.	9,579		567,747
SPX Corp.2	23,251		808,902
SPX FLOW, Inc.2	33,922		1,082,112
Standex International Corp.	5,870		430,858
Tennant Co.	9,778		607,116
Titan International, Inc.	193,488		1,155,123
Triumph Group, Inc.1	83,940		1,599,896
Universal Forest Products, Inc.	80,236		2,398,254
Veritiv Corp.2	183,842		4,838,722
Vicor Corp.1,2	5,114		158,636
Wabash National Corp.	88,106		1,193,836
Watts Water Technologies, Inc., Class A	10,669		862,269
Total Capital Goods			49,517,448
Commercial & Professional Services—5.7%
ABM Industries, Inc.	105,068		3,819,222
Brady Corp., Class A	13,601		631,222
Exponent, Inc.	3,618		208,831
Forrester Research, Inc.	3,955		191,224
FTI Consulting, Inc.2	14,648		1,125,259
Heidrick & Struggles International, Inc.	9,620		368,735
Interface, Inc.	37,954		581,455
Kelly Services, Inc., Class A	131,581		2,902,677
Korn Ferry	23,061		1,032,672
LSC Communications, Inc.	284,885		1,860,299
Matthews International Corp., Class A	21,883		808,577
Mobile Mini, Inc.	8,937		303,322
Multi-Color Corp.1	18,497		922,815
Navigant Consulting, Inc.	22,579		439,613
Resources Connection, Inc.	22,652		374,664
RR Donnelley & Sons Co.1	738,472		3,485,588
Team, Inc.1,2	41,525		726,687
Tetra Tech, Inc.	27,154		1,618,107
TrueBlue, Inc.2	61,803		1,461,023
UniFirst Corp.	6,767		1,038,735
US Ecology, Inc.	5,255		294,175
Viad Corp.	12,848		723,214
Total Commercial & Professional Services			24,918,116
Consumer Durables & Apparel—4.8%
Callaway Golf Co.1	39,371		627,180
Cavco Industries, Inc.2	4,127		485,046
Crocs, Inc.2	23,041		593,306
Ethan Allen Interiors, Inc.	21,246		406,436
Fossil Group, Inc.1,2	92,292		1,266,246
G-III Apparel Group Ltd.2	46,046		1,839,998
Installed Building Products, Inc.1,2	15,353		744,621
iRobot Corp.1,2	4,763		560,558
La-Z-Boy, Inc.	27,312		901,023
LGI Homes, Inc.1,2	14,225		856,914
M.D.C. Holdings, Inc.	56,277		1,635,410
M/I Homes, Inc.2	46,775		1,245,151
Meritage Homes Corp.2	43,477		1,943,857
Movado Group, Inc.	9,791		356,197
	Shares		Value
Consumer Durables & Apparel (Continued)
Nautilus, Inc.2	35,138	$	195,367
Oxford Industries, Inc.1	7,740		582,512
Steven Madden Ltd.	27,440		928,570
Sturm Ruger & Co., Inc.	5,170		274,113
TopBuild Corp.2	19,949		1,293,094
Unifi, Inc.1,2	17,135		331,562
Universal Electronics, Inc.1,2	11,369		422,358
Vera Bradley, Inc.2	22,717		301,000
Vista Outdoor, Inc.2	129,724		1,039,089
William Lyon Homes, Class A2	76,584		1,177,096
Wolverine World Wide, Inc.	34,178		1,221,180
Total Consumer Durables & Apparel			21,227,884
Consumer Services—1.3%
American Public Education, Inc.2	4,953		149,184
Belmond Ltd., Class A1,2	12,340		307,636
BJ's Restaurants, Inc.	12,495		590,764
Career Education Corp.2	19,133		316,077
Chuy’s Holdings, Inc.2	9,914		225,742
Dave & Buster's Entertainment, Inc.	14,451		720,671
Dine Brands Global, Inc.	4,526		413,179
El Pollo Loco Holdings, Inc.1,2	18,147		236,092
Fiesta Restaurant Group, Inc.1,2	26,441		346,641
Monarch Casino & Resort, Inc.2	2,950		129,564
Red Robin Gourmet Burgers, Inc.2	25,839		744,422
Regis Corp.1,2	34,097		670,688
Ruth's Hospitality Group, Inc.	9,601		245,690
Shake Shack, Inc., Class A1,2	4,684		277,059
Strategic Education, Inc.1	2,036		267,347
Wingstop, Inc.	1,226		93,213
Total Consumer Services			5,733,969
Diversified Financials—1.8%
Apollo Commercial Real Estate Finance, Inc.	12,257		223,077
ARMOUR Residential REIT, Inc.	982		19,179
Blucora, Inc.2	11,002		367,247
Capstead Mortgage Corp.	20,394		175,184
Donnelley Financial Solutions, Inc.1,2	36,569		544,147
Encore Capital Group, Inc.1,2	22,784		620,408
Enova International, Inc.2	24,535		559,889
EZCORP, Inc., Class A1,2	45,477		423,846
FirstCash, Inc.	11,072		957,728
Granite Point Mortgage Trust, Inc.	5,338		99,127
Greenhill & Co., Inc.1	8,461		181,996
INTL. FCStone, Inc.2	11,112		430,701
Invesco Mortgage Capital, Inc.	14,335		226,493
New York Mortgage Trust, Inc.1	41,164		250,689
PennyMac Mortgage Investment Trust	15,931		329,931
Piper Jaffray Cos.	6,258		455,770
PRA Group, Inc.1,2	17,315		464,215
Redwood Trust, Inc.	14,884		240,377
Virtus Investment Partners, Inc.1	2,857		278,700
Waddell & Reed Financial, Inc., Class A1	35,115		607,138
WisdomTree Investments, Inc.1	19,947		140,826
World Acceptance Corp.1,2	2,557		299,501
Total Diversified Financials			7,896,169
Energy—5.8%
Archrock, Inc.	51,453		503,210
Bonanza Creek Energy, Inc.1,2	7,000		158,830
C&J Energy Services, Inc.1,2	77,738		1,206,494
CARBO Ceramics, Inc.2	30,856		107,996

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer S&P SmallCap 600 Revenue ETF

	Shares		Value
Energy (Continued)
Carrizo Oil & Gas, Inc.1,2	55,817	$	696,038
CONSOL Energy, Inc.2	24,216		828,672
Denbury Resources, Inc.1,2	487,454		999,281
Diamond Offshore Drilling, Inc.1,2	61,307		643,110
Dril-Quip, Inc.2	5,241		240,300
Era Group, Inc.1,2	11,874		137,026
Exterran Corp.2	43,867		739,159
Geospace Technologies Corp.2	2,792		36,128
Green Plains, Inc.1	134,332		2,240,658
Gulf Island Fabrication, Inc.2	11,185		102,566
Gulfport Energy Corp.1,2	108,277		868,382
Helix Energy Solutions Group, Inc.1,2	54,180		428,564
HighPoint Resources Corp.1,2	107,339		237,219
KLX Energy Services Holdings, Inc.2	10,629		267,213
Laredo Petroleum, Inc.1,2	199,171		615,438
Matrix Service Co.2	32,124		628,988
Nabors Industries Ltd.1	509,400		1,752,336
Newpark Resources, Inc.1,2	63,003		577,107
Noble Corp. PLC1,2	220,276		632,192
Oil States International, Inc.1,2	38,857		659,015
Par Pacific Holdings, Inc.2	103,785		1,848,411
PDC Energy, Inc.1,2	20,169		820,475
Penn Virginia Corp.2	4,918		216,884
Pioneer Energy Services Corp.2	208,349		368,778
ProPetro Holding Corp.1,2	47,210		1,064,113
Renewable Energy Group, Inc.1,2	56,432		1,239,247
REX American Resources Corp.1,2	3,332		268,593
Ring Energy, Inc.1,2	10,763		63,179
SEACOR Holdings, Inc.1,2	11,187		472,986
SRC Energy, Inc.1,2	75,312		385,597
Superior Energy Services, Inc.2	277,676		1,296,747
TETRA Technologies, Inc.2	236,662		553,789
U.S. Silica Holdings, Inc.1	62,477		1,084,601
Unit Corp.1,2	32,137		457,631
Total Energy			25,446,953
Food & Staples Retailing—2.6%
Andersons, Inc. (The)	46,873		1,510,717
Chefs' Warehouse, Inc. (The)1,2	25,320		786,186
SpartanNash Co.	246,529		3,912,415
United Natural Foods, Inc.1,2	402,414		5,319,913
Total Food & Staples Retailing			11,529,231
Food, Beverage & Tobacco—3.3%
B&G Foods, Inc.	37,798		923,027
Calavo Growers, Inc.1	7,019		588,543
Cal-Maine Foods, Inc.1	19,240		858,681
Coca-Cola Consolidated	9,967		2,868,802
Darling Ingredients, Inc.2	86,180		1,865,797
Dean Foods Co.1	1,442,997		4,372,281
J&J Snack Foods Corp.1	4,024		639,172
John B. Sanfilippo & Son, Inc.1	6,846		492,022
MGP Ingredients, Inc.	2,501		192,952
Seneca Foods Corp., Class A1,2	24,107		593,032
Universal Corp.	19,498		1,123,670
Total Food, Beverage & Tobacco			14,517,979
Health Care Equipment & Services—7.3%
Addus HomeCare Corp.2	4,266		271,275
AMN Healthcare Services, Inc. 1,2	24,619		1,159,309
AngioDynamics, Inc.2	8,623		197,122
BioTelemetry, Inc.1,2	3,223		201,824
	Shares		Value
Health Care Equipment & Services (Continued)
Cardiovascular Systems, Inc.2	3,062	$	118,377
Community Health Systems, Inc.1,2	1,631,296		6,084,734
Computer Programs & Systems, Inc.	4,806		142,690
CONMED Corp.1	5,902		490,928
CorVel Corp.2	4,962		323,721
Cross Country Healthcare, Inc.1,2	57,496		404,197
CryoLife, Inc.2	4,798		139,958
Cutera, Inc.2	5,284		93,316
Diplomat Pharmacy, Inc.1,2	477,757		2,775,768
Ensign Group, Inc. (The)	22,433		1,148,345
HealthStream, Inc.2	4,699		131,854
Heska Corp.1,2	877		74,650
HMS Holdings Corp.2	10,307		305,190
Integer Holdings Corp.2	8,399		633,453
Invacare Corp.	55,134		461,472
Lantheus Holdings, Inc.2	7,807		191,115
LeMaitre Vascular, Inc.1	1,891		58,621
LHC Group, Inc.2	8,925		989,426
Magellan Health, Inc.2	60,713		4,002,201
Meridian Bioscience, Inc.	6,900		121,509
Merit Medical Systems, Inc.1,2	8,222		508,366
Natus Medical, Inc.2	10,736		272,480
Neogen Corp.2	3,739		214,581
NextGen Healthcare, Inc.2	16,916		284,696
Omnicell, Inc.2	5,026		406,302
OraSure Technologies, Inc.2	8,801		98,131
Orthofix Medical, Inc.2	4,393		247,809
Owens & Minor, Inc.1	1,186,219		4,863,498
Providence Service Corp. (The)2	13,756		916,425
Select Medical Holdings Corp.2	196,588		2,769,925
Surmodics, Inc.2	882		38,349
Tabula Rasa HealthCare, Inc.1,2	1,745		98,453
Tactile Systems Technology, Inc.1,2	1,063		56,041
Tivity Health, Inc.1,2	16,645		292,286
US Physical Therapy, Inc.	2,184		229,386
Varex Imaging Corp.2	12,915		437,560
Total Health Care Equipment & Services			32,255,343
Household & Personal Products—1.2%
Avon Products, Inc.2	1,108,282		3,258,349
Central Garden & Pet Co., Class A1,2	19,866		507,775
Central Garden & Pet Co., Class A2	22,101		513,848
Inter Parfums, Inc.	4,413		334,814
Medifast, Inc.	2,032		259,182
WD-40 Co.1	1,377		233,319
Total Household & Personal Products			5,107,287
Insurance—2.3%
Ambac Financial Group, Inc.1,2	14,743		267,143
American Equity Investment Life Holding Co.	42,016		1,135,272
AMERISAFE, Inc.	3,329		197,743
eHealth, Inc.2	2,375		148,058
Employers Holdings, Inc.	10,734		430,541
HCI Group, Inc.1	3,385		144,641
Horace Mann Educators Corp.	16,915		595,577
James River Group Holdings Ltd.	11,861		475,389
Navigators Group, Inc. (The)	11,269		787,365
ProAssurance Corp.	12,518		433,248
RLI Corp.1	7,135		511,936
Safety Insurance Group, Inc.	5,307		462,452

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer S&P SmallCap 600 Revenue ETF

	Shares		Value
Insurance (Continued)
Selective Insurance Group, Inc.	22,036	$	1,394,438
Stewart Information Services Corp.	23,802		1,016,107
Third Point Reinsurance Ltd.2	50,197		521,045
United Fire Group, Inc.	13,299		581,299
United Insurance Holdings Corp.	25,006		397,596
Universal Insurance Holdings, Inc.1	13,906		431,086
Total Insurance			9,930,936
Materials—6.0%
AdvanSix, Inc.2	25,569		730,506
AK Steel Holding Corp. 1,2	1,400,917		3,852,522
American Vanguard Corp.	12,720		219,038
Balchem Corp.	3,760		348,928
Boise Cascade Co.	98,702		2,641,266
Century Aluminum Co.1,2	132,106		1,173,101
Clearwater Paper Corp.1,2	34,733		676,599
FutureFuel Corp.	9,142		122,503
H.B. Fuller Co.	33,156		1,612,708
Hawkins, Inc.	7,347		270,590
Haynes International, Inc.	7,662		251,543
Innophos Holdings, Inc.	13,998		421,900
Innospec, Inc.	9,512		792,825
Kaiser Aluminum Corp.	8,200		858,786
Koppers Holdings, Inc.2	34,209		888,750
Kraton Corp.2	31,088		1,000,412
Livent Corp.2	18,811		230,999
LSB Industries, Inc.1,2	30,923		192,960
Materion Corp.	11,357		648,030
Mercer International, Inc.	57,868		781,797
Myers Industries, Inc.	16,431		281,134
Neenah, Inc.	8,651		556,778
Olympic Steel, Inc.	55,553		881,626
PH Glatfelter Co.	51,797		731,374
Quaker Chemical Corp.	2,368		474,381
Rayonier Advanced Materials, Inc.1	90,156		1,222,515
Schweitzer-Mauduit International, Inc.	14,702		569,261
Stepan Co.	11,882		1,039,913
SunCoke Energy, Inc.2	87,706		744,624
TimkenSteel Corp.1,2	79,953		868,290
Tredegar Corp.	32,983		532,346
U.S. Concrete, Inc.1,2	19,470		806,447
Total Materials			26,424,452
Media & Entertainment—1.0%
Care.com, Inc.2	4,251		84,000
E.W. Scripps Co., (The), Class A1	26,118		548,478
Gannett Co., Inc.1	144,794		1,526,129
Marcus Corp. (The)	9,084		363,814
New Media Investment Group, Inc.	67,006		703,563
QuinStreet, Inc.1,2	18,609		249,174
Scholastic Corp.	21,776		865,814
TechTarget, Inc.2	4,059		66,040
Total Media & Entertainment			4,407,012
Pharmaceuticals, Biotechnology & Life Sciences—1.6%
Acorda Therapeutics, Inc.1,2	18,605		247,260
Akorn, Inc.1,2	98,148		345,481
AMAG Pharmaceuticals, Inc.2	23,752		305,926
Amphastar Pharmaceuticals, Inc.1,2	5,942		121,395
ANI Pharmaceuticals, Inc.1,2	1,684		118,789
Anika Therapeutics, Inc.1,2	1,836		55,521
Assertio Therapeutics, Inc.2	48,340		245,084
	Shares		Value
Pharmaceuticals, Biotechnology & Life Sciences (Continued)
Cambrex Corp.1,2	7,370	$	286,325
Corcept Therapeutics, Inc.1,2	11,079		130,067
Cytokinetics, Inc.1,2	2,689		21,754
Eagle Pharmaceuticals, Inc.2	2,386		120,469
Emergent BioSolutions, Inc.2	7,327		370,160
Enanta Pharmaceuticals, Inc.1,2	1,280		122,266
Endo International PLC1,2	181,638		1,458,553
Innoviva, Inc.1,2	10,448		146,585
Lannett Co., Inc.1,2	47,080		370,520
Luminex Corp.	7,022		161,576
Medicines Co. (The)1,2	313		8,748
Medpace Holdings, Inc.2	7,259		428,063
Momenta Pharmaceuticals, Inc.2	3,056		44,404
Myriad Genetics, Inc.1,2	14,859		493,319
NeoGenomics, Inc.1,2	7,865		160,918
Phibro Animal Health Corp., Class A	15,507		511,731
Progenics Pharmaceuticals, Inc.1,2	2,160		10,022
REGENXBIO, Inc.1,2	2,161		123,847
Repligen Corp.1,2	1,824		107,762
Spectrum Pharmaceuticals, Inc.2	5,814		62,152
Supernus Pharmaceuticals, Inc.1,2	5,796		203,092
Vanda Pharmaceuticals, Inc.2	5,541		101,954
Total Pharmaceuticals, Biotechnology & Life Sciences			6,883,743
Real Estate—1.7%
Acadia Realty Trust	5,079		138,504
Agree Realty Corp.	1,192		82,653
American Assets Trust, Inc.	3,853		176,699
Armada Hoffler Properties, Inc.	6,778		105,669
CareTrust REIT, Inc.	3,604		84,550
CBL & Associates Properties, Inc.	241,871		374,900
Cedar Realty Trust, Inc.	25,039		85,133
Chatham Lodging Trust	9,312		179,163
Chesapeake Lodging Trust	11,043		307,106
Community Healthcare Trust, Inc.	789		28,317
DiamondRock Hospitality Co.	43,356		469,545
Easterly Government Properties, Inc.1	4,621		83,224
EastGroup Properties, Inc.	1,494		166,790
Four Corners Property Trust, Inc.	2,760		81,696
Franklin Street Properties Corp.	20,577		147,949
Getty Realty Corp.	2,199		70,434
Global Net Lease, Inc.	8,469		160,064
Hersha Hospitality Trust	14,815		253,929
HFF, Inc., Class A	7,870		375,793
Independence Realty Trust, Inc.	9,959		107,458
Innovative Industrial Properties, Inc., Class A	95		7,761
iStar, Inc.1	50,843		428,098
Kite Realty Group Trust	12,576		201,090
Lexington Realty Trust	23,971		217,177
LTC Properties, Inc.	2,077		95,127
Marcus & Millichap, Inc.2	11,373		463,222
National Storage Affiliates Trust	6,011		171,374
NorthStar Realty Europe Corp.	4,864		84,439
Office Properties Income Trust	8,682		239,970
Pennsylvania Real Estate Investment Trust1	34,059		214,231
PS Business Parks, Inc.	1,442		226,149
RE/MAX Holdings, Inc., Class A1	2,889		111,342
Retail Opportunity Investments Corp.	8,912		154,534

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer S&P SmallCap 600 Revenue ETF

	Shares		Value
Real Estate (Continued)
RPT Realty	12,193	$	146,438
Saul Centers, Inc.	2,292		117,740
Summit Hotel Properties, Inc.1	26,769		305,434
Universal Health Realty Income Trust	563		42,625
Urstadt Biddle Properties, Inc., Class A	3,536		72,983
Washington Prime Group, Inc.1	74,793		422,580
Washington Real Estate Investment Trust1	6,477		183,817
Whitestone REIT	6,043		72,637
Total Real Estate			7,458,344
Retailing—18.3%
Abercrombie & Fitch Co., Class A1	75,462		2,068,413
Asbury Automotive Group, Inc.1,2	54,669		3,791,842
Ascena Retail Group, Inc.2	1,927,620		2,081,830
Barnes & Noble Education, Inc.1,2	266,352		1,118,678
Barnes & Noble, Inc.	359,145		1,950,157
Big Lots, Inc.1	77,831		2,959,135
Buckle, Inc. (The)1	26,058		487,806
Caleres, Inc.1	54,636		1,348,963
Cato Corp., (The), Class A	34,340		514,413
Chico’s FAS, Inc.1	234,427		1,001,003
Children's Place, Inc. (The)	11,808		1,148,682
Conn's, Inc.1,2	35,327		807,575
Core-Mark Holding Co., Inc.	229,301		8,513,946
DSW, Inc., Class A2	60,656		1,347,776
Express, Inc.1,2	237,861		1,018,045
GameStop Corp., Class A1	445,542		4,526,707
Genesco, Inc.1,2	35,047		1,596,391
Group 1 Automotive, Inc.1	102,510		6,632,397
Guess?, Inc.	62,070		1,216,572
Haverty Furniture Cos., Inc.	18,249		399,288
Hibbett Sports, Inc.1,2	28,399		647,781
JC Penney Co., Inc.1,2	3,920,528		5,841,587
Kirkland's, Inc.1,2	35,591		250,205
Liquidity Services, Inc.2	17,037		131,355
Lithia Motors, Inc., Class A1	72,746		6,747,192
Lumber Liquidators Holdings, Inc.1,2	51,201		517,130
MarineMax, Inc.1,2	34,065		652,685
Monro, Inc.1	8,197		709,204
Office Depot, Inc.	1,769,895		6,424,719
PetMed Express, Inc.1	7,321		166,772
Rent-A-Center, Inc.2	69,260		1,445,456
RH1,2	9,507		978,746
Shoe Carnival, Inc.	16,238		552,579
Shutterfly, Inc.2	25,344		1,029,980
Shutterstock, Inc.1	7,358		343,104
Sleep Number Corp.1,2	17,794		836,318
Sonic Automotive, Inc., Class A1	382,460		5,664,233
Stamps.com, Inc.1,2	3,593		292,506
Tailored Brands, Inc.1	150,236		1,177,850
Tile Shop Holdings, Inc.1	31,431		177,900
Vitamin Shoppe, Inc.1,2	86,717		610,488
Zumiez, Inc.1,2	21,281		529,684
Total Retailing			80,257,093
Semiconductors & Semiconductor Equipment—1.7%
Advanced Energy Industries, Inc.1,2	8,200		407,376
Axcelis Technologies, Inc.2	12,057		242,587
Brooks Automation, Inc.1	13,451		394,518
Cabot Microelectronics Corp.	3,282		367,453
	Shares		Value
Semiconductors & Semiconductor Equipment (Continued)
CEVA, Inc.1,2	1,505	$	40,575
Cohu, Inc.	11,387		167,958
Diodes, Inc.2	17,441		605,203
DSP Group, Inc.2	4,712		66,298
FormFactor, Inc.2	18,726		301,301
Ichor Holdings Ltd.1,2	22,870		516,405
Kopin Corp.1,2	8,929		11,965
Kulicke & Soffa Industries, Inc.	19,555		432,361
MaxLinear, Inc.1,2	8,392		214,248
Nanometrics, Inc.2	6,114		188,800
PDF Solutions, Inc.1,2	3,870		47,795
Photronics, Inc.2	29,827		281,865
Power Integrations, Inc.	3,168		221,570
Rambus, Inc.2	12,412		129,705
Rudolph Technologies, Inc.2	6,644		151,483
Semtech Corp.2	6,156		313,402
SMART Global Holdings, Inc.1,2	32,237		618,950
SolarEdge Technologies, Inc.1,2	13,283		500,503
Ultra Clean Holdings, Inc.1,2	60,645		627,676
Veeco Instruments, Inc.1,2	27,631		299,520
Xperi Corp.	9,301		217,643
Total Semiconductors & Semiconductor Equipment			7,367,160
Software & Services—2.6%
8x8, Inc.1,2	9,564		193,193
Agilysys, Inc.2	3,629		76,826
Alarm.com Holdings, Inc.1,2	3,855		250,190
Bottomline Technologies (DE), Inc.2	4,638		232,317
Cardtronics PLC, Class A1,2	24,437		869,469
CSG Systems International, Inc.	11,338		479,597
Ebix, Inc.1	4,948		244,283
EVERTEC, Inc.	8,742		243,115
ExlService Holdings, Inc.2	8,024		481,601
LivePerson, Inc.2	4,716		136,858
ManTech International Corp., Class A	19,365		1,046,097
MicroStrategy, Inc., Class A2	1,921		277,104
Monotype Imaging Holdings, Inc.	6,695		133,164
NIC, Inc.	11,011		188,178
OneSpan, Inc.2	5,768		110,861
Perficient, Inc.2	9,524		260,862
Progress Software Corp.	5,822		258,322
Qualys, Inc.1,2	1,795		148,518
SPS Commerce, Inc.2	1,248		132,363
Sykes Enterprises, Inc.2	30,498		862,483
TiVo Corp.	38,323		357,170
Travelport Worldwide Ltd.	86,511		1,360,818
TTEC Holdings, Inc.	24,009		869,846
Unisys Corp.2	119,065		1,389,489
Virtusa Corp.2	12,811		684,748
Total Software & Services			11,287,472
Technology Hardware & Equipment—7.9%
3D Systems Corp.1,2	33,544		360,933
ADTRAN, Inc.	19,131		262,095
Anixter International, Inc.2	80,802		4,533,800
Applied Optoelectronics, Inc.1,2	11,071		135,066
Arlo Technologies, Inc.1,2	57,685		238,239
Badger Meter, Inc.	4,042		224,897
Bel Fuse, Inc., Class B	11,894		300,680

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer S&P SmallCap 600 Revenue ETF

	Shares		Value
Technology Hardware & Equipment (Continued)
Benchmark Electronics, Inc.	52,274	$	1,372,193
CalAmp Corp.2	15,308		192,575
Comtech Telecommunications Corp.	13,742		319,089
Control4 Corp.2	8,595		145,513
Cray, Inc.1,2	9,932		258,729
CTS Corp.	8,295		243,624
Daktronics, Inc.	39,653		295,415
Diebold Nixdorf, Inc.2	262,184		2,902,377
Digi International, Inc.2	10,395		131,705
Electronics For Imaging, Inc.1,2	20,436		549,728
ePlus, Inc.2	8,309		735,679
Extreme Networks, Inc.2	72,939		546,313
Fabrinet2	14,740		771,786
FARO Technologies, Inc.2	4,840		212,524
Finisar Corp.2	29,137		675,104
Harmonic, Inc.1,2	38,343		207,819
II-VI, Inc.1,2	17,694		658,925
Insight Enterprises, Inc.2	68,742		3,784,935
Itron, Inc.2	25,859		1,206,322
KEMET Corp.1	41,143		698,197
Knowles Corp.2	27,866		491,278
Methode Electronics, Inc.	17,347		499,247
MTS Systems Corp.	8,048		438,294
NETGEAR, Inc.1,2	21,168		701,084
OSI Systems, Inc.1,2	7,072		619,507
Park Electrochemical Corp.	2,638		41,417
Plexus Corp.2	26,437		1,611,335
Rogers Corp.1,2	3,163		502,537
Sanmina Corp.2	136,708		3,944,026
ScanSource, Inc.2	56,333		2,017,848
TTM Technologies, Inc.1,2	132,222		1,550,964
Viavi Solutions, Inc.2	45,708		565,865
Total Technology Hardware & Equipment			34,947,664
Telecommunication Services—1.5%
ATN International, Inc.	4,361		245,917
Cincinnati Bell, Inc.1,2	82,564		787,661
Cogent Communications Holdings, Inc.	5,689		308,628
Consolidated Communications Holdings, Inc.	76,582		835,510
Frontier Communications Corp.1,2	1,715,800		3,414,442
Iridium Communications, Inc.2	12,344		326,375
Spok Holdings, Inc.	6,584		89,674
Vonage Holdings Corp.2	56,587		568,133
Total Telecommunication Services			6,576,340
Transportation—3.3%
Allegiant Travel Co.	7,011		907,714
ArcBest Corp.1	48,906		1,505,816
Atlas Air Worldwide Holdings, Inc.1,2	29,177		1,475,189
Echo Global Logistics, Inc.2	55,635		1,378,635
Forward Air Corp.	11,364		735,592
Hawaiian Holdings, Inc.1	59,018		1,549,223
Heartland Express, Inc.	16,432		316,809
Hub Group, Inc., Class A2	53,717		2,194,339
Marten Transport Ltd.	23,303		415,493
Matson, Inc.1	33,715		1,216,774
Saia, Inc.2	14,453		883,078
SkyWest, Inc.	34,772		1,887,772
Total Transportation			14,466,434
Utilities—0.7%
American States Water Co.1	3,841		273,863
	Shares		Value
Utilities (Continued)
Avista Corp.	18,124	$	736,197
California Water Service Group1	7,002		380,069
El Paso Electric Co.	8,242		484,794
Northwest Natural Holding Co.	5,985		392,796
South Jersey Industries, Inc.	27,787		891,129
Total Utilities			3,158,848
Total Common Stocks
(Cost $457,237,039)			437,723,484
RIGHT—0.0%3
Materials—0.0%3
A. Schulman, Inc. CVR (Cost $19,624)2,4	37,522		0
Money Market Fund—0.2%
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%5
(Cost $785,745)	785,745		785,745
Investment of Cash Collateral for Securities Loaned—4.1%
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%5
(Cost $18,093,487)	18,093,487		18,093,487
Total Investments—104.0% (Cost $476,135,895)			456,602,716
Liabilities in Excess of Other Assets—(4.0)%			(17,494,602	)
Net Assets—100.0%		$	439,108,114

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer S&P SmallCap 600 Revenue ETF

CVR	-	Contigent Value Rights
PLC	-	Public Limited Company
REIT	-	Real Estate Investment Trust

1.	All or a portion of the security was on loan. The aggregate value of the securities on loan was $121,848,988; total value of the collateral held by the Fund was $125,254,775. The total value of the collateral includes non-cash U.S. Treasury securities collateral having a value of $107,161,288.
2.	Non-income producing security.
3.	Less than 0.05%
4.	The value of this security was determined using significant unobservable inputs. See Note 2 of the accompanying Notes.
5.	Rate shown represents annualized 7-day yield as of March 31, 2019.

Schedule of Investments March 31, 2019 Unaudited

Oppenheimer S&P Financials Revenue ETF

	Shares		Value
COMMON STOCKS—99.8%
Banks—33.3%
Bank of America Corp.		88,926	$	2,453,468
BB&T Corp.1		6,054		281,693
Citigroup, Inc.		36,406		2,265,181
Citizens Financial Group, Inc.		4,762		154,765
Comerica, Inc.		985		72,220
Fifth Third Bancorp		6,534		164,788
First Republic Bank1		812		81,574
Huntington Bancshares, Inc.1		8,750		110,950
JPMorgan Chase & Co.		28,568		2,891,939
KeyCorp		10,091		158,933
M&T Bank Corp.		879		138,021
People's United Financial, Inc.1		2,567		42,202
PNC Financial Services Group, Inc. (The)		3,591		440,472
Regions Financial Corp.		9,527		134,807
SunTrust Banks, Inc.		3,781		224,024
SVB Financial Group2		256		56,924
U.S. Bancorp		11,502		554,281
Wells Fargo & Co.		46,551		2,249,344
Zions Bancorp NA		1,439		65,345
Total Banks				12,540,931
Capital Markets—14.6%
Affiliated Managers Group, Inc.		535		57,304
Ameriprise Financial, Inc.		2,338		299,498
Bank of New York Mellon Corp. (The)		8,615		434,454
BlackRock, Inc.		778		332,494
Cboe Global Markets, Inc.		692		66,044
Charles Schwab Corp. (The)		5,840		249,718
CME Group, Inc.		582		95,786
E*TRADE Financial Corp.		1,495		69,413
Franklin Resources, Inc.		4,409		146,114
Goldman Sachs Group, Inc. (The)		5,923		1,137,157
Intercontinental Exchange, Inc.		1,999		152,204
Invesco Ltd.		6,480		125,129
Moody's Corp.		604		109,378
Morgan Stanley		28,038		1,183,204
MSCI, Inc.		181		35,990
Nasdaq, Inc.		1,217		106,475
Northern Trust Corp.		1,716		155,144
Raymond James Financial, Inc.		2,200		176,902
S&P Global, Inc.		736		154,965
State Street Corp.		4,234		278,639
T. Rowe Price Group, Inc.		1,281		128,254
Total Capital Markets				5,494,266
Consumer Finance—6.4%
American Express Co.		9,255		1,011,572
Capital One Financial Corp.		9,267		757,021
Discover Financial Services		4,245		302,074
Synchrony Financial		11,094		353,899
Total Consumer Finance				2,424,566
Diversified Financial Services—15.9%
Berkshire Hathaway, Inc., Class B2		28,801		5,785,833
Jefferies Financial Group, Inc.		10,765		202,274
Total Diversified Financial Services				5,988,107
Insurance—29.6%
Aflac, Inc.		10,551		527,550
Allstate Corp. (The)		9,683		911,945
American International Group, Inc.		25,831		1,112,283
		Shares		Value
Insurance (Continued)
Aon PLC		1,533	$	261,683
Arthur J. Gallagher & Co.		2,011		157,059
Assurant, Inc.		1,848		175,394
Brighthouse Financial, Inc.2		4,910		178,184
Chubb Ltd.		5,689		796,915
Cincinnati Financial Corp.		1,478		126,960
Everest Re Group Ltd.		777		167,801
Hartford Financial Services Group, Inc. (The)		9,000		447,480
Lincoln National Corp.		6,216		364,879
Loews Corp.		6,928		332,059
Marsh & McLennan Cos., Inc.		3,844		360,952
MetLife, Inc.		34,957		1,488,119
Principal Financial Group, Inc.1		6,595		331,003
Progressive Corp. (The)		10,231		737,553
Prudential Financial, Inc.		15,163		1,393,176
Torchmark Corp.		1,224		100,307
Travelers Cos., Inc. (The)		5,337		732,023
Unum Group		7,444		251,830
Willis Towers Watson PLC		1,158		203,403
Total Insurance				11,158,558
Total Common Stocks
(Cost $39,207,611)				37,606,428
Money Market Fund—0.2%
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%3
(Cost $58,348)		58,348		58,348
Total Investments—100.0% (Cost $39,265,959)				37,664,776
Other Assets in Excess of Liabilities—(0.0)%4				13,914
Net Assets—100.0%			$	37,678,690

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer S&P Financials Revenue ETF

PLC - Public Limited Company

1.	All or a portion of the security was on loan. The aggregate value of the securities on loan was $829,039; total value of the collateral held by the Fund was $846,140. The total value of the collateral includes non-cash U.S. Treasury securities collateral having a value of $846,140.
2.	Non-income producing security.
3.	Rate shown represents annualized 7-day yield as of March 31, 2019.
4.	Less than 0.05%.

Schedule of Investments March 31, 2019 Unaudited

Oppenheimer S&P Ultra Dividend Revenue ETF

	Shares		Value
COMMON STOCKS—99.5%
Automobiles & Components—4.6%
General Motors Co.		2,106,087	$	78,135,828
Banks—0.9%
PacWest Bancorp1		96,242		3,619,662
People's United Financial, Inc.1		329,904		5,423,622
Umpqua Holdings Corp.		214,659		3,541,873
Valley National Bancorp1		328,837		3,150,258
Total Banks				15,735,415
Capital Goods—0.4%
nVent Electric PLC		255,566		6,895,171
Commercial & Professional Services—1.0%
Nielsen Holdings PLC		742,334		17,571,046
Consumer Durables & Apparel—1.4%
Newell Brands, Inc.1		1,519,294		23,305,970
Consumer Services—1.2%
H&R Block, Inc.1		350,354		8,387,475
Wyndham Destinations, Inc.		317,381		12,850,756
Total Consumer Services				21,238,231
Diversified Financials—1.2%
Federated Investors, Inc., Class B1		125,244		3,670,901
Janus Henderson Group PLC1		300,606		7,509,138
Legg Mason, Inc.		306,429		8,386,962
Total Diversified Financials				19,567,001
Energy—16.2%
Chevron Corp.		708,027		87,214,766
Exxon Mobil Corp.		1,125,604		90,948,803
Helmerich & Payne, Inc.1		134,165		7,454,208
Occidental Petroleum Corp.		723,309		47,883,056
ONEOK, Inc.1		606,823		42,380,518
Total Energy				275,881,351
Food, Beverage & Tobacco—10.6%
Altria Group, Inc.		1,279,732		73,495,009
General Mills, Inc.		1,060,607		54,886,412
Kraft Heinz Co. (The)1		1,599,085		52,210,125
Total Food, Beverage & Tobacco				180,591,546
Health Care Equipment & Services—0.9%
Patterson Cos., Inc.		713,027		15,579,640
Household & Personal Products—2.5%
Coty, Inc., Class A1		3,723,597		42,821,366
Insurance—2.3%
Principal Financial Group, Inc.1		793,460		39,823,757
Materials—8.5%
International Paper Co.		1,413,591		65,406,855
LyondellBasell Industries NV, Class A		957,223		80,483,310
Total Materials				145,890,165
Media & Entertainment—0.4%
Meredith Corp.1		134,702		7,443,633
Real Estate—6.4%
American Campus Communities, Inc.		55,694		2,649,921
CoreSite Realty Corp.		16,005		1,712,855
Corporate Office Properties Trust		72,072		1,967,566
Crown Castle International Corp.		132,825		17,001,600
Healthcare Realty Trust, Inc.		40,778		1,309,382
Highwoods Properties, Inc.1		47,026		2,199,876
Host Hotels & Resorts, Inc.		908,427		17,169,270
Liberty Property Trust		46,070		2,230,709
Life Storage, Inc.		16,213		1,577,039
National Retail Properties, Inc.		34,955		1,936,157
Pebblebrook Hotel Trust		73,261		2,275,487
PotlatchDeltic, Corp.		74,657		2,821,288
Public Storage		38,259		8,332,045
Realty Income Corp.		57,898		4,258,977
	Shares		Value
Real Estate (Continued)
Simon Property Group, Inc.		90,934	$	16,569,084
Taubman Centers, Inc.1		37,138		1,963,857
Urban Edge Properties		52,558		998,602
Weyerhaeuser Co.		863,310		22,739,585
Total Real Estate				109,713,300
Retailing—6.6%
Bed Bath & Beyond, Inc.1		2,400,766		40,789,014
Macy's, Inc.1		2,974,584		71,479,254
Total Retailing				112,268,268
Semiconductors & Semiconductor Equipment—4.2%
QUALCOMM, Inc.		1,268,586		72,347,460
Software & Services—6.0%
International Business Machines Corp.		606,418		85,565,580
Western Union Co. (The)1		875,662		16,173,477
Total Software & Services				101,739,057
Technology Hardware & Equipment—2.2%
Xerox Corp.		1,190,684		38,078,074
Telecommunication Services—4.9%
Verizon Communications, Inc.		1,408,241		83,269,290
Utilities—17.1%
AES Corp.		1,918,956		34,694,725
CenterPoint Energy, Inc.1		950,016		29,165,491
Dominion Energy, Inc.		545,632		41,828,149
Duke Energy Corp.		791,657		71,249,130
Edison International		661,752		40,975,684
Entergy Corp.		355,910		34,035,673
FirstEnergy Corp.1		879,568		36,598,824
NorthWestern Corp.		55,512		3,908,600
Total Utilities				292,456,276
Total Common Stocks
(Cost $1,662,184,093)				1,700,351,845
Money Market Fund—0.3%
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%2
(Cost $4,652,815)		4,652,815		4,652,815
Investment of Cash Collateral for Securities Loaned—1.5%
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%2
(Cost $25,282,156)		25,282,156		25,282,156
Total Investments—101.3% (Cost $1,692,119,064)				1,730,286,816
Liabilities in Excess of Other Assets—(1.3)%				(21,383,074	)
Net Assets—100.0%			$	1,708,903,742

PLC – Public Limited Company

1.	All or a portion of the security was on loan. The aggregate value of the securities on loan was $260,140,473; total value of the collateral held by the Fund was $266,380,132. The total value of the collateral includes non-cash U.S. Treasury securities collateral having a value of $241,097,976.
2.	Rate shown represents annualized 7-day yield as of March 31, 2019.

Schedule of Investments March 31, 2019 Unaudited

Oppenheimer Emerging Markets Ultra Dividend Revenue ETF

	Shares		Value
COMMON STOCKS—96.3%
Automobiles & Components—2.3%
Chongqing Changan Automobile Co. Ltd., Class B		65,600	$	34,848
Nemak SAB de CV1		46,737		27,058
Weifu High-Technology Group Co. Ltd., Class B		6,027		12,875
Yulon Nissan Motor Co. Ltd.		1,209		9,964
Total Automobiles & Components				84,745
Banks—6.6%
Abu Dhabi Commercial Bank PJSC		13,101		33,813
Banco Santander Mexico SA Institucion de Banca Multiple Grupo Financiero Santand		43,450		59,427
Commercial Bank PQSC (The)		1,618		19,976
Doha Bank QPSC		1,944		11,400
Dubai Islamic Bank PJSC		19,077		25,449
Malayan Banking Bhd		31,800		72,207
Moneta Money Bank AS1		1,195		4,125
National Bank of Pakistan2		38,315		10,905
Qatar International Islamic Bank QSC		267		5,371
Total Banks				242,673
Capital Goods—3.9%
Dubai Investments PJSC		16,554		6,174
ElSewedy Electric Co.		21,409		19,210
Reunert Ltd.		1,296		6,381
Sime Darby Bhd		140,500		76,746
Zoomlion Heavy Industry Science and Technology Co. Ltd., Class H		73,090		36,219
Total Capital Goods				144,730
Consumer Durables & Apparel—0.1%
China Dongxiang Group Co. Ltd.		14,344		2,083
Consumer Services—0.4%
OPAP SA		1,458		15,062
Diversified Financials—8.8%
China Cinda Asset Management Co. Ltd., Class H		418,900		116,332
China Huarong Asset Management Co. Ltd., Class H1		620,864		132,083
Coronation Fund Managers Ltd.		758		2,415
Moscow Exchange MICEX-RTS PJSC		2,463		3,423
Power Finance Corp. Ltd.2		20,897		37,133
REC Ltd.		14,686		32,414
Total Diversified Financials				323,800
Energy—19.2%
China Petroleum & Chemical Corp., Class H		209,476		165,180
Coal India Ltd.		37,132		127,142
Indian Oil Corp. Ltd.		89,370		210,089
Qatar Gas Transport Co. Ltd.		1,404		8,021
Tatneft PJSC		6,522		74,951
Tupras Turkiye Petrol Rafinerileri AS		5,349		118,160
Total Energy				703,543
Food & Staples Retailing—0.2%
Al Meera Consumer Goods Co. QSC		168		6,843
Food, Beverage & Tobacco—0.3%
Eastern Tobacco		7,084		7,439
Philip Morris CR AS		7		4,808
Total Food, Beverage & Tobacco				12,247
Insurance—1.3%
MMI Holdings Ltd.		41,600		47,856
Materials—16.1%
Alrosa PJSC		17,846		25,105
Eregli Demir ve Celik Fabrikalari TAS		24,968		40,305
		Shares		Value
Materials (Continued)
Fauji Fertilizer Co. Ltd.		9,021	$	6,695
Kumba Iron Ore Ltd.		1,062		31,688
Magnitogorsk Iron & Steel Works PJSC		65,603		45,834
MMC Norilsk Nickel PJSC		295		61,607
Novolipetsk Steel PJSC		27,046		70,190
Severstal PJSC		2,982		46,661
Shandong Chenming Paper Holdings Ltd., Class H		37,569		24,169
Sinopec Shanghai Petrochemical Co. Ltd., Class H		224,636		107,025
Vedanta Ltd.		49,222		131,057
Total Materials				590,336
Media & Entertainment—0.3%
Astro Malaysia Holdings Bhd		29,200		10,943
Real Estate—7.7%
Agile Group Holdings Ltd.		56,923		92,093
Barwa Real Estate Co.		434		4,369
Concentradora Fibra Danhos SA de CV		1,511		2,158
DAMAC Properties Dubai Co. PJSC		42,947		15,785
Emlak Konut Gayrimenkul Yatirim Ortakligi AS		20,931		5,668
Fibra Uno Administracion SA de CV		5,587		7,725
Fortress REIT Ltd., Class A		1,750		2,228
Growthpoint Properties Ltd.3		3,925		6,646
Guangzhou R&F Properties Co. Ltd., Class H		50,663		109,588
Hyprop Investments Ltd.		337		1,647
KWG Group Holdings Ltd.		9,458		11,410
Land & Houses PCL		28,600		9,643
Redefine Properties Ltd.		7,568		5,090
Resilient REIT Ltd.		395		1,498
SOHO China Ltd.2		5,662		2,380
United Development Co. QSC		1,001		3,830
Vukile Property Fund Ltd.		1,007		1,396
Total Real Estate				283,154
Retailing—0.3%
Xinhua Winshare Publishing and Media Co. Ltd., Class H		14,246		11,088
Software & Services—0.6%
Cielo SA		9,313		22,710
Technology Hardware & Equipment—8.5%
AU Optronics Corp.		238,282		87,750
Inventec Corp.		185,510		141,147
Kingboard Laminates Holdings Ltd.		16,608		17,454
Lite-On Technology Corp.		39,903		58,067
Transcend Information, Inc.		2,501		5,680
Total Technology Hardware & Equipment				310,098
Telecommunication Services—8.1%
Bharti Infratel Ltd.		2,006		9,075
Magyar Telekom Telecommunications PLC		12,216		19,703
Mobile Telecommunications Co. KSC		25,156		40,038
Mobile TeleSystems PJSC		10,501		40,351
MTN Group Ltd.3		13,617		83,678
Rostelecom PJSC		24,807		27,379
Sistema PJSFC		157,055		22,811
Telkom SA SOC Ltd.		5,176		26,172
Turkcell Iletisim Hizmetleri AS		12,913		27,634
Total Telecommunication Services				296,841
Transportation—2.0%
Aeroflot PJSC		28,965		42,457
Air Arabia PJSC2		37,144		9,506

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Emerging Markets Ultra Dividend Revenue ETF

	Shares		Value
Transportation (Continued)
AirAsia Group Bhd	33,400	$	21,762
Total Transportation			73,725
Utilities—9.6%
AES Gener SA	74,054		19,904
CEZ AS	2,890		67,901
China Power International Development Ltd.	114,850		29,408
China Resources Power Holdings Co. Ltd.	47,473		71,361
Datang International Power Generation Co. Ltd., Class H	223,692		59,842
Engie Brasil Energia SA	1,925		21,126
Federal Grid Co. Unified Energy System PJSC	8,750,583		21,857
Manila Electric Co.	6,970		50,440
Transmissora Alianca de Energia Eletrica SA	552		3,518
Unipro PJSC	156,021		6,139
Total Utilities			351,496
Total Common Stocks
(Cost $3,574,762)			3,533,973
PREFERRED STOCKS—2.8%
Banks—0.4%
Itausa - Investimentos Itau SA, 3.41%	4,450		13,699
Energy—0.8%
Bashneft PJSC, 8.68%	1,070		29,528
Utilities—1.6%
Cia de Gas de Sao Paulo - COMGAS, Class A, 5.96%	813		17,109
Cia Paranaense de Energia, 3.10%	3,812		35,655
Cia de Transmissao de Energia Eletrica Paulista, 16.12%	313		6,204
Total Utilities			58,968
Total Preferred Stocks
(Cost $87,749)			102,195
INVESTMENT COMPANY—0.0%4
Telecommunications Hardware—0.0%4
Digital Telecommunications Infrastructure Fund
(Cost $722)	1,500		737
Investment of Cash Collateral for Securities Loaned—1.7%
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%5
(Cost $61,216)	61,216		61,216
Total Investments—100.8% (Cost $3,724,449)			3,698,121
Liabilities in Excess of Other Assets—(0.8)%			(28,121	)
Net Assets—100.0%		$	3,670,000

 

PCL	-	Public Company Limited
PLC	-	Public Limited Company
REIT	-	Real Estate Investment Trust

1.	Represents securities sold under Rule 144A, which are exempt from registration under the Securities Act of 1933, as amended. These securities have been determined to be liquid under guidelines established by the Board of Trustees. These securities amount to $163,266 or 4.45% of the Fund’s net assets at period end.
2.	Non-income producing security.
3.	All or a portion of the security was on loan. The aggregate value of the securities on loan was $58,167; total value of the collateral held by the Fund was $61,216.
4.	Less than 0.05%.
5.	Rate shown represents annualized 7-day yield as of March 31, 2019.

Geographical Holdings
Country		Value		% of Net Assets
China	$	1,017,983		27.7	%
India		546,910		14.9
Russia		518,294		14.1
Taiwan		302,608		8.3
South Africa		216,695		5.9
Turkey		191,767		5.2
Malaysia		181,659		5.0
Brazil		120,021		3.3
Mexico		96,367		2.6
United Arab Emirates		90,727		2.5
Czech Republic		76,833		2.1
United States		61,216		1.7
Qatar		59,811		1.6
Philippines		50,440		1.4
Kuwait		40,038		1.1
Egypt		26,650		0.7
Chile		19,904		0.5
Hungary		19,703		0.5
Pakistan		17,600		0.5
Hong Kong		17,454		0.5
Greece		15,061		0.4
Thailand		10,380		0.3
Total Investments		3,698,121		100.8
Liabilities in Excess of Other Assets		(28,121	)	(0.8	)
Net Assets	$	3,670,000		100.0	%

Schedule of Investments March 31, 2019 Unaudited

Oppenheimer International Ultra Dividend Revenue ETF

	Shares		Value
COMMON STOCKS—98.9%
Automobiles & Components—4.5%
Bayerische Motoren Werke AG		819	$	63,224
Nokian Renkaat OYJ		34		1,139
Renault SA		592		39,159
Xinyi Glass Holdings Ltd.		1,092		1,252
Total Automobiles & Components				104,774
Banks—12.4%
ABN AMRO Group NV1		435		9,818
Australia & New Zealand Banking Group Ltd.		791		14,626
Banco Santander SA		10,691		49,752
Bank of Nova Scotia (The)		344		18,318
Bank Polska Kasa Opieki SA		54		1,549
Bendigo & Adelaide Bank Ltd.		194		1,334
Canadian Imperial Bank of Commerce		143		11,303
Commonwealth Bank of Australia		345		17,312
Danske Bank A/S		463		8,134
DNB ASA		266		4,905
First International Bank of Israel Ltd.		35		824
Hana Financial Group, Inc.		234		7,504
HSBC Holdings PLC		6,397		51,956
ING Groep NV		2,676		32,403
KBC Group NV		115		8,042
Lloyds Banking Group PLC		25,285		20,474
Mediobanca Banca di Credito Finanziario SpA		197		2,049
National Bank of Canada		104		4,695
Nordea Bank Abp2,3		912		6,970
Swedbank AB, Class A		215		3,045
Westpac Banking Corp.		866		15,945
Total Banks				290,958
Capital Goods—1.7%
BAE Systems PLC		2,237		14,061
BOC Aviation Ltd.1		88		718
Kone OYJ, Class B		130		6,563
NWS Holdings Ltd.		1,198		2,619
Singapore Technologies Engineering Ltd.		1,100		3,037
Skanska AB, Class B2		642		11,691
Zardoya Otis SA		76		630
Total Capital Goods				39,319
Commercial & Professional Services—0.4%
Babcock International Group PLC2		534		3,434
G4S PLC		2,210		5,285
Societe BIC SA		15		1,338
Total Commercial & Professional Services				10,057
Consumer Durables & Apparel—0.5%
Barratt Developments PLC		532		4,154
Bellway PLC		63		2,500
Pandora A/S		41		1,921
Persimmon PLC		98		2,771
Total Consumer Durables & Apparel				11,346
Consumer Services—0.1%
Crown Resorts Ltd.		180		1,472
Star Entertainment Grp Ltd. (The)		369		1,095
Total Consumer Services				2,567
Diversified Financials—2.2%
Ashmore Group PLC		56		312
Guotai Junan International Holdings Ltd.		1,539		312
Haitong International Securities Group Ltd.		1,000		394
Macquarie Group Ltd.		68		6,251
Natixis SA		2,506		13,425
		Shares		Value
Diversified Financials (Continued)
Perpetual Ltd.2		11	$	302
Singapore Exchange Ltd.		104		561
Standard Life Aberdeen PLC		2,625		9,028
UBS Group AG3		1,753		21,246
Total Diversified Financials				51,831
Energy—22.1%
Aker BP ASA		65		2,317
BP PLC		16,500		120,079
Delek Group Ltd.		8		1,383
Enagas SA		35		1,019
Enbridge, Inc.		589		21,339
Eni SpA		3,103		54,890
Equinor ASA		2,067		45,329
Oil Refineries Ltd.3		7,451		3,644
Paz Oil Co. Ltd.3		16		2,390
Pembina Pipeline Corp.		96		3,527
Royal Dutch Shell PLC, Class A		3,754		118,060
SK Innovation Co. Ltd.		175		27,674
TOTAL SA		1,938		107,760
TransCanada Corp.		142		6,380
Whitehaven Coal Ltd.2		361		1,039
Woodside Petroleum Ltd.		123		3,025
Total Energy				519,855
Food & Staples Retailing—2.7%
J Sainsbury PLC		7,864		24,153
Jeronimo Martins SGPS SA		804		11,871
Kesko OYJ, Class B		124		7,552
METRO AG		1,150		19,098
Total Food & Staples Retailing				62,674
Food, Beverage & Tobacco—2.8%
Anheuser-Busch InBev SA		416		34,921
British American Tobacco PLC		534		22,225
Coca-Cola Amatil Ltd.		377		2,316
KT&G Corp.		26		2,371
Salmar ASA		18		865
Tate & Lyle PLC		248		2,345
Total Food, Beverage & Tobacco				65,043
Insurance—18.5%
Aegon NV		2,757		13,262
Ageas		165		7,967
Allianz SE		414		92,172
Assicurazioni Generali SpA		2,549		47,225
Aviva PLC		5,824		31,297
AXA SA		375		9,445
CNP Assurances		1,011		22,273
Gjensidige Forsikring ASA2		110		1,903
Great-West Lifeco, Inc.		901		21,824
Harel Insurance Investments & Financial Services Ltd.		456		3,003
Insurance Australia Group Ltd.		1,401		7,643
Legal & General Group PLC		5,326		19,106
Manulife Financial Corp.		1,088		18,405
Mapfre SA		5,491		15,143
Medibank Pvt Ltd.		1,595		3,127
NN Group NV		219		9,106
Poste Italiane SpA1		2,252		21,929
Power Corp. of Canada		1,089		25,400
Power Financial Corp.		1,012		23,650
Sampo OYJ, Class A		116		5,263

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer International Ultra Dividend Revenue ETF

	Shares		Value
Insurance (Continued)
Talanx AG	634	$	24,460
UnipolSai Assicurazioni SpA2	3,821		10,314
Total Insurance			433,917
Materials—5.6%
Adelaide Brighton Ltd.	233		745
Amcor Ltd.	507		5,543
BASF SE	585		43,045
Boral Ltd.	727		2,370
CSR Ltd.	542		1,278
Evonik Industries AG	374		10,196
Fortescue Metals Group Ltd.	934		4,717
Israel Corp. Ltd. (The)	12		2,740
Orora Ltd.	903		1,918
Rio Tinto Ltd.	351		24,412
Rio Tinto PLC	448		26,042
Shougang Fushan Resources Group Ltd.	1,370		314
Svenska Cellulosa AB SCA, Class B	145		1,260
UPM-Kymmene OYJ	242		7,065
Total Materials			131,645
Media & Entertainment—0.6%
ITV PLC	1,536		2,544
Singapore Press Holdings Ltd.	300		534
WPP PLC	1,163		12,287
Total Media & Entertainment			15,365
Pharmaceuticals, Biotechnology & Life Sciences—1.2%
GlaxoSmithKline PLC	1,268		26,383
Orion OYJ, Class B2	20		751
Total Pharmaceuticals, Biotechnology & Life Sciences			27,134
Real Estate—1.5%
Amot Investments Ltd.	18		100
Ascendas Real Estate Investment Trust	200		430
British Land Co. PLC (The)	100		768
CapitaLand Commercial Trust	200		286
CapitaLand Mall Trust	200		351
Champion REIT	346		300
Covivio	5		531
Dexus	55		498
Frasers Property Ltd.	1,300		1,737
Gazit-Globe Ltd.	55		442
GPT Group (The)	101		446
Hang Lung Properties Ltd.	414		1,010
Keppel REIT	100		95
Kiwi Property Group Ltd.	72		73
Klepierre SA	23		805
Lendlease Group	757		6,657
Mapletree Commercial Trust	200		279
Mapletree Industrial Trust	200		310
Mapletree Logistics Trust	200		216
Mapletree North Asia Commercial Trust	200		195
Mirvac Group	672		1,313
New World Development Co. Ltd.	4,066		6,744
RioCan Real Estate Investment Trust	35		694
Scentre Group	416		1,215
Shopping Centres Australasia Property Group	119		223
Shui On Land Ltd.	9,956		2,460
Stockland	485		1,326
Suntec Real Estate Investment Trust	100		144
Swiss Prime Site AG3	8		701
	Shares		Value
Real Estate (Continued)
Unibail-Rodamco-Westfield	13	$	2,133
Vicinity Centres	379		700
Wharf Holdings Ltd. (The)	1,000		3,019
Total Real Estate			36,201
Retailing—0.6%
Chow Tai Fook Jewellery Group Ltd.	5,442		5,504
Inchcape PLC	1,004		7,470
Lifestyle International Holdings Ltd.	156		270
Sa Sa International Holdings Ltd.2	1,624		555
Total Retailing			13,799
Semiconductors & Semiconductor Equipment—0.0%4
Xinyi Solar Holdings Ltd.	1,580		761
Telecommunication Services—9.0%
Bezeq The Israeli Telecommunication Corp. Ltd.	1,837		1,319
BT Group PLC	6,786		19,714
Deutsche Telekom AG	3,226		53,592
Elisa OYJ	30		1,355
Orange SA	1,904		31,000
Proximus SADP	159		4,590
Singapore Telecommunications Ltd.	3,500		7,804
SK Telecom Co. Ltd.	40		8,863
Spark New Zealand Ltd.	598		1,550
Swisscom AG	16		7,824
Telecom Italia SpA -RSP	24,726		14,059
Telefonica SA	3,964		33,244
Telenor ASA	411		8,242
Telstra Corp. Ltd.	5,074		11,966
TELUS Corp.	181		6,701
Total Telecommunication Services			211,823
Transportation—2.0%
Air New Zealand Ltd.	1,327		2,294
Atlantia SpA	184		4,771
Aurizon Holdings Ltd.	423		1,367
ComfortDelGro Corp. Ltd.	1,000		1,897
easyJet PLC	310		4,514
International Consolidated Airlines Group SA	1,536		10,248
Kuehne + Nagel International AG	100		13,716
Royal Mail PLC	2,270		7,049
SIA Engineering Co. Ltd.	300		545
Total Transportation			46,401
Utilities—10.5%
AGL Energy Ltd.	378		5,846
AusNet Services	517		652
Canadian Utilities Ltd., Class A	76		2,075
EDP - Energias de Portugal SA	2,945		11,590
Endesa SA	564		14,401
Enel SpA	8,801		56,368
Engie SA	2,868		42,766
Fortis, Inc.	107		3,956
Fortum OYJ	166		3,398
Hydro One Ltd.1	188		2,921
Innogy SE1	518		23,975
Italgas SpA	179		1,106
Korea Electric Power Corp.3	1,084		28,554
Mercury NZ Ltd.	318		846
National Grid PLC	1,083		12,007
Pennon Group PLC	110		1,066
Severn Trent PLC	51		1,313
Suez	951		12,611

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer International Ultra Dividend Revenue ETF

	Shares		Value
Utilities (Continued)
Terna Rete Elettrica Nazionale SpA	241	$	1,528
United Utilities Group PLC	124		1,316
Veolia Environnement SA	831		18,597
Total Utilities			246,892
Total Common Stocks
(Cost $2,430,160)			2,322,362
Money Market Fund—0.5%
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%5
(Cost 10,928)	10,928		10,928
Investment of Cash Collateral for Securities Loaned—1.5%
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%5
(Cost 36,126)	36,126		36,126
Total Investments—100.9% (Cost 2,477,214)			2,369,416
Liabilities in Excess of Other Assets—(0.9)%			(23,027	)
Net Assets—100.0%		$	2,346,389

PLC	-	Public Limited Company
REIT	-	Real Estate Investment Trust

1.	Represents securities sold under Rule 144A, which are exempt from registration under the Securities Act of 1933, as amended. These securities have been determined to be liquid under guidelines established by the Board of Trustees. These securities amount to $59,361 or 2.53% of the Fund’s net assets at period end.
2.	All or a portion of the security was on loan. The aggregate value of the securities on loan was $33,902; total value of the collateral held by the Fund was $37,128. The total value of the collateral includes non-cash U.S. Treasury securities collateral having a value of $1,002.
3.	Non-income producing security.
4.	Less than 0.05%.
5.	Rate shown represents annualized 7-day yield as of March 31, 2019.

Geographical Holdings
Country		Value		% of Net Assets
United Kingdom	$	439,858		18.7	%
Germany		329,762		14.0
France		301,842		12.9
Italy		214,240		9.1
Netherlands		182,649		7.8
Australia		174,721		7.4
Canada		171,189		7.3
Spain		114,189		4.9
South Korea		74,965		3.2
Norway		63,561		2.7
Belgium		55,520		2.4
United States		47,054		2.0
Switzerland		43,487		1.8
Finland		40,056		1.7
Portugal		23,462		1.0
Hong Kong		21,667		0.9
Singapore		19,140		0.8
Sweden		15,995		0.7
Israel		15,845		0.7
Denmark		10,055		0.4
New Zealand		4,763		0.2
China		3,847		0.2
Poland		1,549		0.1
Total Investments		2,369,416		100.9
Liabilities in Excess of Other Assets		(23,027	)	(0.9	)
Net Assets	$	2,346,389		100.0	%

Schedule of Investments March 31, 2019 Unaudited

Oppenheimer Emerging Markets Revenue ETF

	Shares		Value
COMMON STOCKS—97.3%
Automobiles & Components—4.1%
Astra International Tbk PT		50,418	$	25,935
BAIC Motor Corp. Ltd., Class H1		16,499		10,782
Bajaj Auto Ltd.		169		7,102
Bosch Ltd.		14		3,675
Brilliance China Automotive Holdings Ltd.		653		647
BYD Co. Ltd., Class H2		1,622		9,774
Cheng Shin Rubber Industry Co. Ltd.		6,075		8,269
Dongfeng Motor Group Co. Ltd., Class H		10,028		10,041
Eicher Motors Ltd.		7		2,076
Ford Otomotiv Sanayi AS		1,134		9,791
Fuyao Glass Industry Group Co. Ltd., Class H1		311		1,044
Geely Automobile Holdings Ltd.		13,337		25,485
Great Wall Motor Co. Ltd., Class H		10,914		8,189
Guangzhou Automobile Group Co. Ltd., Class H		4,341		5,126
Hankook Tire Co. Ltd.		261		8,611
Hanon Systems		810		8,099
Hyundai Mobis Co. Ltd.		268		49,227
Hyundai Motor Co.		1,024		107,804
Kia Motors Corp.		2,432		75,739
Mahindra & Mahindra Ltd.		2,619		25,477
Maruti Suzuki India Ltd.		203		19,553
Motherson Sumi Systems Ltd.		7,548		16,311
Nexteer Automotive Group Ltd.		4,463		5,515
SAIC Motor Corp. Ltd., Class A		4,372		16,961
Tata Motors Ltd.3		25,044		62,994
Total Automobiles & Components				524,227
Banks—12.2%
Absa Group Ltd.		1,687		17,793
Abu Dhabi Commercial Bank PJSC		5,646		14,572
Agricultural Bank of China Ltd., Class A		38,718		21,490
Agricultural Bank of China Ltd., Class H		29,001		13,374
Alliance Bank Malaysia Bhd		5,838		5,849
Alpha Bank AE3		6,666		9,236
AMMB Holdings Bhd		5,801		6,479
Axis Bank Ltd.3		1,529		17,155
Banco Bradesco SA		4,089		39,769
Banco de Credito e Inversiones		141		9,014
Banco do Brasil SA		5,403		67,640
Banco Santander Brasil SA		2,930		33,104
Bancolombia SA		1,195		14,856
Bank Danamon Indonesia Tbk PT3		8,798		5,746
Bank Handlowy w Warszawie SA		277		4,877
Bank Mandiri Persero Tbk PT3		31,156		16,300
Bank of China Ltd., Class A		40,660		22,810
Bank of China Ltd., Class H		92,065		41,752
Bank of Communications Co. Ltd., Class H		61,832		50,647
Bank Rakyat Indonesia Persero Tbk PT		69,059		19,981
BNK Financial Group, Inc.		1,319		7,762
Capitec Bank Holdings Ltd.		76		7,114
China CITIC Bank Corp Ltd., Class H		40,258		25,642
China Construction Bank Corp., Class H		247,287		212,007
China Everbright Bank Co. Ltd., Class H		34,438		16,276
China Merchants Bank Co. Ltd., Class H		4,820		23,425
China Minsheng Banking Corp. Ltd., Class H		24,253		17,611
Chongqing Rural Commercial Bank Co. Ltd., Class H		7,762		4,479
		Shares		Value
Banks (Continued)
CIMB Group Holdings Bhd		10,421	$	13,146
Commercial International Bank Egypt SAE		1,136		4,467
CTBC Financial Holding Co. Ltd.		44,000		29,195
DGB Financial Group, Inc.		905		6,514
First Abu Dhabi Bank PJSC		4,807		19,971
Grupo Financiero Banorte SAB de CV, Class O		3,178		17,291
Habib Bank Ltd.		1,306		1,229
Hana Financial Group, Inc.		630		20,203
Housing Development Finance Corp. Ltd.		617		17,530
ICICI Bank Ltd.		5,878		33,983
Indiabulls Housing Finance Ltd.		474		5,872
Industrial & Commercial Bank of China Ltd., Class A		23,932		19,836
Industrial & Commercial Bank of China Ltd., Class H		73,390		53,757
Industrial Bank of Korea		1,334		16,512
Itau CorpBanca		869,565		7,667
Kasikornbank PCL		5,248		31,007
KB Financial Group, Inc.		1,151		42,436
Krung Thai Bank PCL		24,023		14,534
LIC Housing Finance Ltd.		806		6,192
Malayan Banking Bhd		9,200		20,890
MCB Bank Ltd.		716		1,000
Metropolitan Bank & Trust Co.		5,165		7,859
Nedbank Group Ltd.		892		15,540
OTP Bank Nyrt		250		10,997
Postal Savings Bank of China Co. Ltd., Class H1		39,998		22,878
Public Bank Bhd		2,620		14,863
Qatar National Bank QPSC		655		32,473
RHB Bank Bhd		6,944		9,695
Santander Bank Polska SA		94		9,342
Sberbank of Russia PJSC4		6,949		92,144
Shanghai Commercial & Savings Bank Ltd. (The)		6,000		9,481
Shinhan Financial Group Co. Ltd.		915		33,856
Siam Commercial Bank PCL (The)		4,105		17,075
State Bank of India3		19,258		89,166
Turkiye Is Bankasi AS, Class C		16,439		16,004
VTB Bank PJSC		13,518		15,438
Woori Financial Group, Inc.		1,349		16,341
Total Banks				1,543,144
Capital Goods—8.6%
AKR Corporindo Tbk PT		4,660		1,545
Alfa SAB de CV, Class A		25,530		27,152
Alliance Global Group, Inc.		25,108		7,727
Ashok Leyland Ltd.		7,089		9,343
AviChina Industry & Technology Co. Ltd.,  Class H		10,932		6,977
Bidvest Group Ltd. (The)		724		9,714
China Communications Construction Co. Ltd., Class H		31,149		32,221
China Railway Construction Corp. Ltd., Class A		11,044		18,916
China Railway Construction Corp. Ltd., Class H		12,871		16,855
China Railway Group Ltd., Class H		30,155		27,505
China Shipbuilding Industry Co. Ltd., Class A		20,300		17,641
China State Construction Engineering Corp. Ltd., Class A		21,822		19,873

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Emerging Markets Revenue ETF

	Shares		Value
Capital Goods (Continued)
China State Construction International Holdings Ltd.	10,532	$	9,861
CITIC Ltd.	66,300		98,986
CJ Corp.	334		36,634
CRRC Corp. Ltd., Class H	8,920		8,409
Daelim Industrial Co. Ltd.	211		17,919
Daewoo Engineering & Construction Co. Ltd.3	3,638		16,281
Daewoo Shipbuilding & Marine Engineering Co. Ltd.3	481		11,844
DMCI Holdings, Inc.	24,643		5,632
Dongfang Electric Corp. Ltd., Class A3	6,400		10,104
Doosan Bobcat, Inc.	165		4,492
ElSewedy Electric Co.	3,570		3,203
Embraer SA	1,411		6,689
Far Eastern New Century Corp.	12,387		12,238
Fosun International Ltd.	13,747		23,291
GS Engineering & Construction Corp.	477		17,902
Haitian International Holdings Ltd.	1,209		2,748
Hanwha Corp.	1,915		51,287
HDC Holdings Co. Ltd.	36		601
HDC Hyundai Development Co-Engineering & Construction, Class E	174		7,772
Hiwin Technologies Corp.	545		4,598
Hyosung Corp.	8		532
Hyosung Heavy Industries Corp.3	13		454
Hyundai Engineering & Construction Co. Ltd.	427		20,088
Hyundai Heavy Industries Co. Ltd.3	142		14,887
Hyundai Heavy Industries Holdings Co. Ltd.	74		21,709
JG Summit Holdings, Inc.	8,284		10,018
KCC Corp.	28		7,857
KOC Holding AS	14,075		40,085
Larsen & Toubro Ltd.	1,797		35,935
LG Corp.	231		15,772
Lotte Corp.	571		24,850
Metallurgical Corp. of China., Ltd., Class H	38,998		11,526
Posco International Corp.	2,057		32,166
Samsung C&T Corp.	485		45,718
Samsung Engineering Co. Ltd.3	575		8,156
Samsung Heavy Industries Co. Ltd.3	1,059		7,706
Shanghai Electric Group Co. Ltd., Class H	14,792		5,615
Shanghai Industrial Holdings Ltd.	3,296		7,759
Sime Darby Bhd	24,825		13,560
Sinopec Engineering Group Co. Ltd., Class H	4,000		3,903
Sinotruk Hong Kong Ltd.	7,498		15,951
SK Holdings Co. Ltd.	725		172,771
SM Investments Corp.	943		16,773
Weichai Power Co. Ltd., Class H	6,653		10,628
Zhuzhou CRRC Times Electric Co. Ltd., Class H	393		2,323
Total Capital Goods			1,092,702
Commercial & Professional Services—0.1%
Country Garden Services Holdings Co. Ltd.3	1,653		3,079
S-1 Corp.	78		6,906
Total Commercial & Professional Services			9,985
Consumer Durables & Apparel—1.5%
ANTA Sports Products Ltd.	964		6,558
Arcelik AS3	2,832		8,471
CCC SA	59		3,312
Coway Co. Ltd.	65		5,411
	Shares		Value
Consumer Durables & Apparel (Continued)
Eclat Textile Co. Ltd.	209	$	2,814
Feng TAY Enterprise Co. Ltd.	410		2,900
FF Group3,5	235		0
Fila Korea Ltd.	82		5,635
Haier Electronics Group Co. Ltd.3	6,305		18,313
Hyosung TNC Co. Ltd.	6		914
LG Electronics, Inc.	1,266		83,761
LPP SA	2		4,343
Nien Made Enterprise Co. Ltd.	230		2,026
Oppein Home Group, Inc., Class A	300		5,419
Pou Chen Corp.	14,390		17,532
Ruentex Industries Ltd.	242		635
Shenzhou International Group Holdings Ltd.	333		4,463
Tatung Co. Ltd.3	5,000		3,942
Titan Co. Ltd.	296		4,879
Zhejiang Semir Garment Co. Ltd., Class A	2,600		4,639
Total Consumer Durables & Apparel			185,967
Consumer Services—0.4%
Alsea SAB de CV	2,716		5,694
Genting Malaysia Bhd	7,356		5,766
Huazhu Group Ltd.2,4	100		4,214
Jollibee Foods Corp.	1,747		10,547
OPAP SA	1,142		11,797
Yum China Holdings, Inc.	307		13,787
Total Consumer Services			51,805
Diversified Financials—1.2%
Bajaj Finance Ltd.	137		5,982
Chailease Holding Co. Ltd.	1,787		7,306
China Cinda Asset Management Co. Ltd.,  Class H	41,794		11,607
China Everbright Ltd.	3,002		5,951
China Huarong Asset Management Co. Ltd., Class H1	92,008		19,574
China International Capital Corp. Ltd., Class H1	2,000		4,632
CITIC Securities Co. Ltd., Class H	2,362		5,500
Far East Horizon Ltd.	7,553		8,005
FirstRand Ltd.2	4,298		18,764
GF Securities Co. Ltd., Class H	2,747		3,947
Grupo de Inversiones Suramericana SA	839		9,650
GT Capital Holdings, Inc.3	462		8,196
Guotai Junan Securities Co. Ltd., Class H1	1,000		2,229
Haitong Securities Co. Ltd., Class H	3,083		3,990
Huaxi Securities Co., Ltd., Class A	4,200		7,706
Metro Pacific Investments Corp.	66,916		6,181
Muangthai Capital PCL	1,600		2,218
Reinet Investments SCA	106		1,814
SDIC Capital Co., Ltd., Class A	3,700		8,000
Yuanta Financial Holding Co. Ltd.	23,622		13,451
Total Diversified Financials			154,703
Energy—17.6%
Adaro Energy Tbk PT	64,490		6,091
Banpu PCL	13,974		7,133
Bharat Petroleum Corp. Ltd.	12,983		74,506
Bukit Asam Tbk PT	10,980		3,238
China Coal Energy Co. Ltd., Class H	15,999		6,624
China Petroleum & Chemical Corp., Class A	38,855		33,188
China Petroleum & Chemical Corp., Class H	147,713		116,478
China Shenhua Energy Co. Ltd., Class H	4,972		11,338

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Emerging Markets Revenue ETF

	Shares		Value
Energy (Continued)
CNOOC Ltd.	26,174	$	49,014
Coal India Ltd.	7,139		24,444
Dialog Group Bhd	3,948		3,066
Ecopetrol SA	33,031		35,411
Empresas COPEC SA	2,572		32,656
Formosa Petrochemical Corp.	10,974		41,125
Gazprom PJSC4	42,952		193,885
Grupa Lotos SA	570		12,400
GS Holdings Corp.	510		23,723
Guanghui Energy Co., Ltd., Class A	12,800		8,285
Hindustan Petroleum Corp. Ltd.	18,849		77,233
Indian Oil Corp. Ltd.	62,828		147,695
IRPC PCL	87,010		15,765
Kunlun Energy Co. Ltd.	20,610		21,529
LUKOIL PJSC4	2,317		207,603
MOL Hungarian Oil & Gas PLC	2,246		25,703
Novatek PJSC	122		20,911
Oil & Natural Gas Corp. Ltd.	42,445		97,879
PetroChina Co. Ltd., Class A	31,881		36,055
PetroChina Co. Ltd., Class H	80,170		51,983
Petroleo Brasileiro SA	9,862		78,938
Petronas Dagangan Bhd	2,008		12,296
Polski Koncern Naftowy ORLEN SA	1,714		43,652
Polskie Gornictwo Naftowe i Gazownictwo SA	10,488		17,111
PTT Exploration & Production PCL	1,927		7,621
PTT PCL	75,068		113,542
Reliance Industries Ltd.	6,755		132,930
Rosneft Oil Co. PJSC3	29,704		186,541
SK Innovation Co. Ltd.	485		76,696
S-Oil Corp.	365		28,812
Surgutneftegas PJSC4	9,403		34,885
Tatneft PJSC4	325		22,490
Thai Oil PCL	8,934		19,566
Tupras Turkiye Petrol Rafinerileri AS	1,016		22,443
Ultrapar Participacoes SA	2,645		31,944
United Tractors Tbk PT	5,505		10,457
Yanzhou Coal Mining Co. Ltd., Class H	5,365		5,269
Total Energy			2,230,154
Food & Staples Retailing—2.7%
Atacadao Distribuicao Comercio e Industria Ltda	4,227		21,821
Avenue Supermarts Ltd.1,3	162		3,440
Berli Jucker PCL	5,187		8,091
BGF retail Co. Ltd.	45		8,662
Bid Corp. Ltd.	693		14,320
BIM Birlesik Magazalar AS	739		9,967
Cencosud SA	11,990		20,758
Clicks Group Ltd.	377		4,816
CP ALL PCL	10,583		24,928
E-MART, Inc.	147		22,275
GS Retail Co. Ltd.	373		12,865
Magnit PJSC	2,037		28,722
Pick n Pay Stores Ltd.	2,434		11,208
President Chain Store Corp.	1,000		9,847
Raia Drogasil SA	396		6,645
Shoprite Holdings Ltd.	1,649		18,136
SPAR Group Ltd. (The)	956		12,720
Sun Art Retail Group Ltd.	22,235		21,669
	Shares		Value
Food & Staples Retailing (Continued)
Wal-Mart de Mexico SAB de CV	18,119	$	48,498
X5 Retail Group NV	1,312		32,695
Total Food & Staples Retailing			342,083
Food, Beverage & Tobacco—3.5%
Ambev SA	4,498		19,452
Anadolu Efes Biracilik Ve Malt Sanayii AS	2,852		8,839
Arca Continental SAB de CV	2,597		14,477
BRF SA3	2,618		15,237
Charoen Pokphand Foods PCL	37,222		29,909
Charoen Pokphand Indonesia Tbk PT	13,193		5,929
China Agri-Industries Holdings Ltd.	53,997		18,504
China Mengniu Dairy Co. Ltd.3	4,612		17,156
China Resources Beer Holdings Co. Ltd.	2,337		9,839
CJ CheilJedang Corp.	87		24,756
Coca-Cola Femsa SAB de CV, Series L	924		6,112
Dali Foods Group Co. Ltd.1	7,998		5,981
Fomento Economico Mexicano SAB de CV	2,765		25,537
Fraser & Neave Holdings Bhd	637		5,436
Gruma SAB de CV, Class B	684		6,989
Grupo Bimbo SAB de CV, Series A	13,174		27,560
Gudang Garam Tbk PT	1,136		6,637
Hanjaya Mandala Sampoerna Tbk PT	30,545		8,044
ITC Ltd.	2,828		12,135
JBS SA	19,273		78,841
KT&G Corp.	104		9,483
Kuala Lumpur Kepong Bhd	2,373		14,415
M Dias Branco SA	344		3,841
Ottogi Corp.	8		5,434
QL Resources Bhd	2,600		4,382
Tiger Brands Ltd.	292		5,366
Tingyi Cayman Islands Holding Corp.	10,643		17,544
Uni-President China Holdings Ltd.	6,000		5,885
Uni-President Enterprises Corp.	10,607		25,743
United Spirits Ltd.3	359		2,870
Want Want China Holdings Ltd.	6,412		5,326
Total Food, Beverage & Tobacco			447,659
Health Care Equipment & Services—0.5%
Bangkok Dusit Medical Services PCL	8,246		6,444
Life Healthcare Group Holdings Ltd.	2,867		5,336
Netcare Ltd.	3,331		5,393
Shanghai Pharmaceuticals Holding Co. Ltd., Class H	5,278		11,498
Sinopharm Group Co. Ltd., Class H	6,714		27,968
Top Glove Corp. Bhd	2,400		2,716
Total Health Care Equipment & Services			59,355
Household & Personal Products—0.4%
Amorepacific Corp.	52		8,635
AMOREPACIFIC Group	174		10,669
Hengan International Group Co. Ltd.	783		6,863
Hindustan Unilever Ltd.	524		12,910
Kimberly-Clark de Mexico SAB de CV, Class A3	3,080		5,230
LG Household & Health Care Ltd.	11		13,732
Total Household & Personal Products			58,039
Insurance—4.0%
Bajaj Finserv Ltd.	56		5,689
Cathay Financial Holding Co. Ltd.	11,395		16,619
China Life Insurance Co. Ltd., Class H	15,229		40,934

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Emerging Markets Revenue ETF

	Shares		Value
Insurance (Continued)
China Life Insurance Co. Ltd./Taiwan	19,840	$	16,833
China Pacific Insurance Group Co. Ltd., Class H	6,593		25,868
China Taiping Insurance Holdings Co. Ltd.	12,952		38,609
DB Insurance Co. Ltd.	372		22,515
Fubon Financial Holding Co. Ltd.	27,980		41,761
Hanwha Life Insurance Co. Ltd.	7,432		26,190
Hyundai Marine & Fire Insurance Co. Ltd.	673		22,471
IRB Brasil Resseguros SA	200		4,689
Liberty Holdings Ltd.2	1,218		8,533
New China Life Insurance Co. Ltd., Class H	2,149		10,950
Orange Life Insurance Ltd.1	191		6,058
People’s Insurance Co. Group of China Ltd. (The), Class H	52,857		22,624
PICC Property & Casualty Co. Ltd., Class H	23,651		26,875
Ping An Insurance Group Co. of China Ltd., Class H	7,037		78,797
Porto Seguro SA	475		6,570
Powszechny Zaklad Ubezpieczen SA	1,137		12,011
Qatar Insurance Co. SAQ	639		6,405
Samsung Fire & Marine Insurance Co. Ltd.	121		32,086
Samsung Life Insurance Co. Ltd.	332		24,598
Sanlam Ltd.	1,180		6,035
Sul America SA	847		6,486
Total Insurance			510,206
Materials—8.4%
Aluminum Corp of China Ltd., Class A3	11,000		6,858
Aluminum Corp. of China Ltd., Class H3	20,106		7,402
Ambuja Cements Ltd.	2,526		8,580
Anglo American Platinum Ltd.	236		12,047
AngloGold Ashanti Ltd.	830		11,027
Anhui Conch Cement Co. Ltd., Class H	1,466		8,955
Asia Cement Corp.	5,092		6,625
Asian Paints Ltd.	234		5,042
BBMG Corp., Class H	14,264		5,233
Cemex SAB de CV3	48,751		22,795
China Hongqiao Group Ltd.	32,499		24,468
China National Building Material Co. Ltd., Class H	24,437		19,270
China Oriental Group Co. Ltd.	15,999		10,048
China Resources Cement Holdings Ltd.	7,998		8,253
China Steel Corp.	28,630		23,502
China Zhongwang Holdings Ltd.	9,198		5,015
Cia Siderurgica Nacional SA3	3,615		15,095
Empresas CMPC SA	3,036		10,708
Eregli Demir ve Celik Fabrikalari TAS	6,256		10,099
Formosa Chemicals & Fibre Corp.	6,000		21,804
Formosa Plastics Corp.	4,000		14,211
Gold Fields Ltd.	1,958		7,234
Grasim Industries Ltd.	1,653		20,472
Grupo Argos SA	1,298		7,375
Grupo Mexico SAB de CV, Series B	6,926		19,053
Hanwha Chemical Corp.	659		12,134
Hindalco Industries Ltd.	9,891		29,341
Hyosung Advanced Materials Corp.3	7		774
Hyosung Chemical Corp.	4		495
Hyundai Steel Co.	667		26,384
Indorama Ventures PCL	11,826		18,539
	Shares		Value
Materials (Continued)
Industrias Penoles SAB de CV	719	$	8,992
Jastrzebska Spolka Weglowa SA3	241		3,835
Jiangxi Copper Co. Ltd., Class H	15,935		21,152
JSW Steel Ltd.	4,959		20,978
Korea Zinc Co. Ltd.	28		11,470
Kumba Iron Ore Ltd.	220		6,564
Kumho Petrochemical Co. Ltd.	122		10,232
LG Chem Ltd.	102		32,889
Lotte Chemical Corp.	84		21,498
Maanshan Iron & Steel Co. Ltd., Class H	10,000		4,892
Mexichem SAB de CV	3,775		9,032
MMC Norilsk Nickel PJSC4	1,011		21,352
MMG Ltd.3	15,118		6,144
Mondi Ltd.	284		6,278
Nan Ya Plastics Corp.	7,000		17,920
Nine Dragons Paper Holdings Ltd.	12,514		11,924
Novolipetsk Steel PJSC	1,006		25,824
OCI Co. Ltd.	58		4,747
Pabrik Kertas Tjiwi Kimia Tbk PT	3,157		2,444
Petkim Petrokimya Holding AS	4,149		3,334
Petronas Chemicals Group Bhd	3,885		8,717
PhosAgro PJSC	850		10,650
POSCO	420		93,613
POSCO Chemical Co., Ltd.	41		2,174
PT Indah Kiat Pulp & Paper Corp. Tbk	8,038		4,854
PTT Global Chemical PCL	12,000		25,429
Sappi Ltd.	2,199		10,163
Sasol Ltd.	744		23,216
Semen Indonesia Persero Tbk PT	6,279		6,151
Severstal PJSC	1,478		23,057
Shree Cement Ltd.	21		5,659
Sinopec Shanghai Petrochemical Co. Ltd.,  Class H	12,770		6,084
Southern Copper Corp.2	590		23,411
Suzano Papel e Celulose SA	588		7,033
Taiwan Cement Corp.	6,822		9,131
Tata Steel Ltd.	5,057		38,032
UltraTech Cement Ltd.	207		11,947
UPL Ltd.	383		5,301
Vale SA	4,599		60,186
Vedanta Ltd.	10,281		27,374
Zijin Mining Group Co. Ltd., Class H	23,715		9,818
Total Materials			1,062,339
Media & Entertainment—1.2%
58.Com, Inc.3,4	37		2,430
Astro Malaysia Holdings Bhd	3,106		1,164
Baidu, Inc.3,4	81		13,353
Cheil Worldwide, Inc.	377		8,038
Cyfrowy Polsat SA3	1,265		8,473
Grupo Televisa SAB, Series CPO	3,552		7,872
iQIYI, Inc.2,3,4	53		1,268
Kakao Corp.	46		4,194
Megacable Holdings SAB de CV	688		3,195
NAVER Corp.	25		2,731
NetEase Inc.2,4	65		15,694
SINA Corp.3	114		6,753
Tencent Holdings Ltd.	1,612		74,132

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Emerging Markets Revenue ETF

	Shares		Value
Media & Entertainment (Continued)
Tencent Music Entertainment Group2,3,4	30	$	543
Total Media & Entertainment			149,840
Pharmaceuticals, Biotechnology & Life Sciences—0.8%
3SBio, Inc.1	1,532		3,013
Aspen Pharmacare Holdings Ltd.	575		3,707
Aurobindo Pharma Ltd.	501		5,672
China Resources Pharmaceutical Group Ltd.1	27,999		39,591
China Traditional Chinese Medicine Holdings Co. Ltd.	6,000		3,570
Cipla Ltd.	604		4,612
CSPC Pharmaceutical Group Ltd.	3,187		5,928
Divi's Laboratories Ltd.	96		2,360
Dr Reddy's Laboratories Ltd.	141		5,659
Hypera SA	450		2,995
Kalbe Farma Tbk PT	48,662		5,194
Lupin Ltd.	438		4,676
Sino Biopharmaceutical Ltd.	6,118		5,580
Sun Pharmaceutical Industries Ltd.	1,456		10,064
Total Pharmaceuticals, Biotechnology & Life Sciences			102,621
Real Estate—4.1%
Agile Group Holdings Ltd.	9,651		15,614
Ayala Land, Inc.	14,578		12,465
China Evergrande Group2	32,321		107,463
China Jinmao Holdings Group Ltd.	18,903		12,329
China Overseas Land & Investment Ltd.	10,158		38,562
China Resources Land Ltd.	6,968		31,245
China Vanke Co. Ltd., Class H	3,192		13,419
Country Garden Holdings Co. Ltd.	49,289		76,979
DAMAC Properties Dubai Co. PJSC	13,063		4,801
Emaar Development PJSC	8,720		9,211
Emaar Properties PJSC	11,365		14,480
Future Land Development Holdings Ltd.	6,789		8,406
Greentown China Holdings Ltd.	18,499		18,476
Guangzhou R&F Properties Co. Ltd., Class H	3,812		8,246
Kaisa Group Holdings Ltd.3	28,999		13,151
KWG Group Holdings Ltd.	2,500		3,016
Land & Houses PCL	23,394		7,888
Logan Property Holdings Co. Ltd.	5,246		8,688
Longfor Group Holdings Ltd	6,643		23,399
Robinsons Land Corp.	10,280		4,796
Shimao Property Holdings Ltd.	7,113		22,245
Shui On Land Ltd.	32,998		8,155
Sino-Ocean Group Holding Ltd.	26,422		11,579
Sunac China Holdings Ltd.	5,542		27,604
Yuexiu Property Co. Ltd.	35,997		8,667
Yuzhou Properties Co. Ltd.	14,999		9,057
Total Real Estate			519,941
Retailing—3.3%
Alibaba Group Holding Ltd.2,3,4	422		76,994
B2W Cia Digital3	300		3,255
Ctrip.Com International Ltd.3,4	283		12,364
GOME Retail Holdings Ltd.2,3	168,926		15,709
Hotai Motor Co. Ltd.	1,000		12,248
Hotel Shilla Co. Ltd.	103		8,657
Hyundai Department Store Co. Ltd.	54		4,805
JD.com, Inc.2,3,4	3,577		107,847
Lojas Renner SA	502		5,650
	Shares		Value
Retailing (Continued)
Lotte Shopping Co. Ltd.	132	$	20,699
Magazine Luiza SA	200		8,883
Meituan Dianping, Class B3	1,300		8,761
Motus Holdings Ltd.	449		2,547
Petrobras Distribuidora SA	6,400		38,071
S.A.C.I. Falabella	3,194		23,750
Shinsegae, Inc.	27		8,028
Vipshop Holdings Ltd.3,4	2,305		18,509
Woolworths Holdings Ltd.	4,011		12,927
Zhongsheng Group Holdings Ltd.	10,559		26,203
Total Retailing			415,907
Semiconductors & Semiconductor Equipment—1.4%
ASE Technology Holding Co. Ltd.3	10,490		22,974
Globalwafers Co. Ltd.	320		3,146
MediaTek, Inc.	1,830		16,774
Nanya Technology Corp.	3,240		6,455
Semiconductor Manufacturing  International Corp.3	5,372		5,433
SK Hynix, Inc.	907		59,289
Taiwan Semiconductor Manufacturing Co. Ltd.	7,015		55,878
United Microelectronics Corp.	28,000		10,584
Total Semiconductors & Semiconductor Equipment			180,533
Software & Services—0.9%
360 Security Technology, Inc., Class A	800		3,074
Cielo SA	1,942		4,736
HCL Technologies Ltd.	875		13,735
Infosys Ltd.	1,725		18,522
Kingsoft Corp. Ltd.	810		2,060
Samsung SDS Co. Ltd.	73		15,113
Tata Consultancy Services Ltd.	1,138		32,882
Tech Mahindra Ltd.	813		9,106
Wipro Ltd.	3,410		12,542
Total Software & Services			111,770
Technology Hardware & Equipment—10.3%
AAC Technologies Holdings, Inc.	838		4,959
Acer, Inc.3	21,268		13,629
Asustek Computer, Inc.	3,391		24,535
AU Optronics Corp.	46,046		16,957
BYD Electronic International Co. Ltd.	7,283		9,389
Catcher Technology Co. Ltd.	610		4,691
Compal Electronics, Inc.	88,280		54,852
Delta Electronics, Inc.	3,000		15,477
Foxconn Industrial Internet Co., Ltd., Class A3	4,600		10,096
Foxconn Technology Co. Ltd.	5,500		10,975
Hon Hai Precision Industry Co. Ltd.	115,975		276,574
Innolux Corp.	49,430		16,038
Inventec Corp.	37,177		28,286
Kingboard Holdings Ltd.	2,427		8,611
Kingboard Laminates Holdings Ltd.	3,000		3,153
Largan Precision Co. Ltd.	25		3,731
Legend Holdings Corp., Class H1	14,899		39,573
Lenovo Group Ltd.	99,965		89,905
LG Display Co. Ltd.3	1,922		33,018
LG Innotek Co. Ltd.	136		14,078
Lite-On Technology Corp.	8,695		12,653
Micro-Star International Co. Ltd.	2,320		6,511
Pegatron Corp.	39,055		67,540

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Emerging Markets Revenue ETF

	Shares		Value
Technology Hardware & Equipment (Continued)
Quanta Computer, Inc.	28,510	$	53,467
Samsung Electro-Mechanics Co. Ltd.	110		10,127
Samsung Electronics Co. Ltd.	8,107		318,895
Samsung SDI Co. Ltd.	58		10,960
Sunny Optical Technology Group Co. Ltd.	573		6,843
Synnex Technology International Corp.	18,000		21,609
Wistron Corp.	69,720		53,613
WPG Holdings Ltd.	24,705		32,223
Xiaomi Corp., Class B1,3	16,800		24,355
Zhen Ding Technology Holding Ltd.	2,101		6,524
ZTE Corp., Class H3	2,134		6,416
Total Technology Hardware & Equipment			1,310,263
Telecommunication Services—4.8%
Advanced Info Service PCL	2,563		14,860
America Movil SAB de CV, Series L	79,031		56,551
Axiata Group Bhd	10,765		10,943
Bharti Airtel Ltd.	4,380		21,061
China Communications Services Corp. Ltd., Class H	8,665		7,727
China Mobile Ltd.	16,484		167,991
China Telecom Corp. Ltd., Class H	30,686		17,044
China Tower Corp. Ltd., Class H1,3	19,999		4,637
China Unicom Hong Kong Ltd.	57,561		72,960
Chunghwa Telecom Co. Ltd.	5,000		17,764
Empresa Nacional de Telecomunicaciones SA	748		7,789
Globe Telecom, Inc.	157		5,794
Hellenic Telecommunications Organization SA	1,193		15,994
KT Corp.4	2,217		27,579
Mobile TeleSystems PJSC4	2,063		15,596
MTN Group Ltd.	2,965		18,220
Ooredoo Q.P.S.C.	866		15,794
Orange Polska SA3	5,329		7,131
PLDT, Inc.	329		7,205
SK Telecom Co. Ltd.	128		28,360
Telekom Malaysia Bhd	7,862		6,162
Telekomunikasi Indonesia Persero Tbk PT	59,836		16,598
Telkom SA SOC Ltd.	1,740		8,798
TIM Participacoes SA	2,629		7,965
True Corp. PCL	65,241		9,786
Turkcell Iletisim Hizmetleri AS	4,113		8,802
Vodacom Group Ltd.	1,544		11,930
Vodafone Idea Ltd3	7,947		2,094
XL Axiata Tbk PT3	8,368		1,587
Total Telecommunication Services			614,722
Transportation—1.9%
Adani Ports & Special Economic Zone Ltd.	782		4,269
Air China Ltd., Class H	11,313		13,922
AirAsia Group Bhd	6,173		4,022
BTS Group Holdings PCL	23,222		8,049
China Airlines Ltd.	29,384		9,400
China Eastern Airlines Corp. Ltd., Class H	13,999		9,933
China Southern Airlines Co. Ltd., Class H	17,617		15,754
CJ Logistics Corp.3	104		15,163
COSCO SHIPPING Holdings Co. Ltd., Class H3	17,500		7,268
DP World PLC	419		6,704
Eva Airways Corp.	22,050		10,803
Evergreen Marine Corp. Taiwan Ltd.	29,722		11,524
	Shares		Value
Transportation (Continued)
Hyundai Glovis Co. Ltd.	195	$	22,075
Imperial Logistics Ltd.	490		2,034
InterGlobe Aviation Ltd.1	390		8,040
Jasa Marga Persero Tbk PT	18,354		7,701
Korean Air Lines Co. Ltd.	618		17,341
Latam Airlines Group SA	1,240		13,184
MISC Bhd	3,122		5,116
Pan Ocean Co. Ltd.3	1,075		3,892
SF Holding Co. Ltd., Class A	1,900		10,354
Shenzhen International Holdings Ltd.	2,000		4,245
Sinotrans Ltd., Class H	16,000		6,869
TAV Havalimanlari Holding AS	958		3,958
Turk Hava Yollari AO3	7,766		17,774
ZTO Express Cayman, Inc.2,4	200		3,656
Total Transportation			243,050
Utilities—3.4%
Beijing Enterprises Holdings Ltd.	2,512		14,240
Centrais Eletricas Brasileiras SA3	1,780		16,781
CEZ AS	704		16,541
China Gas Holdings Ltd.	3,657		12,858
China Power International Development Ltd.	29,998		7,681
China Resources Gas Group Ltd.	2,526		11,906
China Resources Power Holdings Co. Ltd.	9,340		14,040
Cia de Saneamento Basico do Estado de Sao Paulo	707		7,630
Cia Energetica de Minas Gerais	1,390		5,965
Colbun SA	21,051		4,758
CPFL Energia SA	57		446
Datang International Power Generation Co. Ltd., Class H	27,999		7,490
Enel Americas SA	113,437		20,168
Enel Chile SA	87,157		9,132
Engie Brasil Energia SA	591		6,486
ENN Energy Holdings Ltd.	1,350		13,053
Equatorial Energia SA	391		8,038
GAIL India Ltd.	3,761		18,874
Gulf Energy Development PCL	1,338		4,026
Huadian Power International Corp. Ltd., Class H	11,999		4,937
Huaneng Power International, Inc., Class H	23,435		13,613
Infraestructura Energetica Nova SAB de CV	950		3,821
Interconexion Electrica SA ESP	1,228		6,153
Korea Electric Power Corp.3	2,961		77,997
Korea Gas Corp.	828		32,898
Manila Electric Co.	4		29
NTPC Ltd.	14,019		27,259
Perusahaan Gas Negara Persero Tbk PT	35,380		5,839
PGE Polska Grupa Energetyczna SA3	4,158		10,780
Power Grid Corp. of India Ltd.	3,769		10,767
RusHydro PJSC4	10,683		7,638
Tata Power Co. Ltd. (The)	9,030		9,620
Tenaga Nasional Bhd	6,830		21,180
Total Utilities			432,644
Total Common Stocks
(Cost $12,467,588)			12,353,659
PREFERRED STOCKS—2.2%
Automobiles & Components—0.2%
Hyundai Motor Co.-2nd Preferred, 5.33%	255		17,141
Hyundai Motor Co., 5.82%	183		11,156

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Emerging Markets Revenue ETF

	Shares		Value
Automobiles & Components (Continued)
Total Automobiles & Components		$	28,297
Banks—0.7%
Banco Bradesco SA, 2.23%	4,625		51,031
Itau Unibanco Holding SA, 4.18%	4,104		36,308
Total Banks			87,339
Capital Goods—0.0%6
CJ Corp.3,5	53		1,261
Energy—0.5%
Petroleo Brasileiro SA, 3.21%	8,716		62,844
Food & Staples Retailing—0.1%
Cia Brasileira de Distribuicao, 2.29%	481		11,304
Materials—0.2%
Gerdau SA, 3.10%	2,931		11,403
LG Chem Ltd., 2.92%	18		3,298
Braskem SA, Class A, 3.70%	656		8,580
Total Materials			23,281
Retailing—0.0%6
Lojas Americanas SA, 0.41%	1,413		6,089
Technology Hardware & Equipment—0.4%
Samsung Electronics Co. Ltd., 2.92%	1,442		46,051
Telecommunication Services—0.1%
Telefonica Brasil SA, 8.70%	1,013		12,364
Total Preferred Stocks
(Cost $238,472)			278,830
RIGHT—0.0%6
Telecommunication Services—0.0%6
Vodafone Idea Ltd., expiring 4/29/193 (Cost $3,448)	18,194		1,648
WARRANT—0.0%6
Transportation—0.0%6
BTS Group Holdings PCL, expiring 12/29/193 (Cost $0)	3,946		139
Money Market Fund—0.0%6
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%7
(Cost $470)	470		470
Investment of Cash Collateral for Securities Loaned—0.3%
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%7
(Cost $38,106)	38,106		38,106
Total Investments—99.8% (Cost $12,748,084)			12,672,852
Other Assets in Excess of Liabilities—0.2%			19,377
Net Assets—100.0%		$	12,692,229

PCL	-	Public Company Limited
PLC	-	Public Limited Company

1.	Represents securities sold under Rule 144A, which are exempt from registration under the Securities Act of 1933, as amended. These securities have been determined to be liquid under guidelines established by the Board of Trustees. These securities amount to $195,827 or 1.54% of the Fund’s net assets at period end.
2.	All or a portion of the security was on loan. The aggregate value of the securities on loan was $380,682; total value of the collateral held by the Fund was $393,796. The total value of the collateral includes non-cash U.S. Treasury securities collateral having a value of $355,690.
3.	Non-income producing security.
4.	American Depositary Receipt.
5.	The value of this security was determined using significant unobservable inputs. See Note 2 of the accompanying Notes.
6.	Less than 0.05%.
7.	Rate shown represents annualized 7-day yield as of March 31, 2019.

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Emerging Markets Revenue ETF

Geographical Holdings
Country		Value	% of Net Assets
China	$	3,507,504	27.6	%
South Korea		2,452,043	19.3
India		1,351,145	10.6
Taiwan		1,256,943	9.9
Russia		939,432	7.4
Brazil		741,961	5.9
Thailand		386,549	3.0
Mexico		315,851	2.5
South Africa		291,205	2.3
Malaysia		189,864	1.5
Indonesia		160,272	1.3
Chile		159,586	1.3
Turkey		159,568	1.3
Poland		137,266	1.1
United States		117,417	0.9
Philippines		103,222	0.8
Hong Kong		73,497	0.6
Colombia		73,445	0.6
United Arab Emirates		69,739	0.5
Qatar		54,672	0.4
Greece		37,028	0.3
Hungary		36,700	0.3
Peru		23,411	0.2
Czech Republic		16,540	0.1
Egypt		7,671	0.1
United Kingdom		6,278	0.0	1
Pakistan		2,229	0.0	1
Luxembourg		1,814	0.0	1
Total Investments		12,672,852	99.8
Other Assets in Excess of Liabilities		19,377	0.2
Net Assets	$	12,692,229	100.0	%

1 Less than 0.05%

Schedule of Investments March 31, 2019 Unaudited

Oppenheimer International Revenue ETF

	Shares		Value
COMMON STOCKS—98.4%
Automobiles & Components—11.0%
Aisin Seiki Co. Ltd.		800	$	28,586
Bayerische Motoren Werke AG		1,004		77,505
Bridgestone Corp.		700		26,979
Cie Generale des Etablissements Michelin		177		20,948
Continental AG		262		39,480
Daimler AG		2,550		149,606
Denso Corp.		900		35,102
Fiat Chrysler Automobiles NV1		5,294		78,894
Honda Motor Co. Ltd.		4,200		113,647
Isuzu Motors Ltd.		1,400		18,391
Koito Manufacturing Co. Ltd.		100		5,665
Mazda Motor Corp.		2,300		25,736
Minth Group Ltd.		896		2,819
Mitsubishi Motors Corp.		3,200		16,999
Nissan Motor Co. Ltd.		10,400		85,335
Peugeot SA		2,821		68,863
Pirelli & C SpA1,2		864		5,567
Renault SA		813		53,777
Stanley Electric Co. Ltd.		200		5,376
Subaru Corp.		900		20,511
Sumitomo Electric Industries Ltd.		1,800		23,881
Sumitomo Rubber Industries Ltd.		700		8,398
Suzuki Motor Corp.		600		26,551
Toyoda Gosei Co. Ltd.		300		6,353
Toyota Industries Corp.		300		15,043
Toyota Motor Corp.		4,054		237,596
Valeo SA		595		17,270
Volkswagen AG		718		116,980
Yamaha Motor Co. Ltd.		700		13,730
Yokohama Rubber Co. Ltd. (The)		400		7,430
Total Automobiles & Components				1,353,018
Banks—7.7%
ABN AMRO Group NV2		669		15,099
AIB Group PLC		2,475		11,122
Aozora Bank Ltd.		200		4,944
Banco Bilbao Vizcaya Argentaria SA3		6,202		35,467
Banco Santander SA		17,124		79,689
Bank Hapoalim B.M.		572		3,787
Bankinter SA		515		3,926
BNP Paribas SA		1,398		66,887
BOC Hong Kong Holdings Ltd.		3,621		14,991
CaixaBank SA		3,441		10,757
Commerzbank AG1		1,626		12,598
Commonwealth Bank of Australia		552		27,699
Credit Agricole SA		5,556		67,189
Danske Bank A/S		808		14,195
DBS Group Holdings Ltd.		730		13,598
DNB ASA		384		7,081
Erste Group Bank AG1		309		11,366
Fukuoka Financial Group, Inc.		200		4,438
HSBC Holdings PLC		7,672		62,311
ING Groep NV		3,054		36,980
Intesa Sanpaolo SpA		9,505		23,170
Japan Post Bank Co. Ltd.3		1,700		18,569
KBC Group NV		192		13,427
Lloyds Banking Group PLC		53,000		42,915
Mebuki Financial Group, Inc.		2,000		5,114
		Shares		Value
Banks (Continued)
Mitsubishi UFJ Financial Group, Inc.		8,700	$	43,231
Mizrahi Tefahot Bank Ltd.		203		4,173
Mizuho Financial Group, Inc.		17,300		26,774
National Australia Bank Ltd.		1,394		25,023
Nordea Bank Abp3		1,607		12,258
Oversea-Chinese Banking Corp. Ltd.		2,429		19,816
Resona Holdings, Inc.		1,600		6,934
Royal Bank of Scotland Group PLC		5,488		17,663
Societe Generale SA		1,773		51,313
Standard Chartered PLC		2,470		19,031
Sumitomo Mitsui Financial Group, Inc.		1,200		42,022
Sumitomo Mitsui Trust Holdings, Inc.		300		10,777
UniCredit SpA		1,854		23,790
United Overseas Bank Ltd.		688		12,795
Westpac Banking Corp.		1,378		25,372
Total Banks				948,291
Capital Goods—12.7%
ABB Ltd.		1,489		27,974
ACS Actividades de Construccion y Servicios SA		783		34,429
AGC, Inc.		400		14,022
Airbus SE		471		62,353
ANDRITZ AG		154		6,612
Assa Abloy AB, Class B		476		10,300
Atlas Copco AB, Class A		515		13,861
BAE Systems PLC		2,958		18,594
Bouygues SA		900		32,186
Brenntag AG		280		14,431
Bunzl PLC		362		11,944
Cie de Saint-Gobain		1,042		37,803
CIMIC Group Ltd.		335		11,484
CK Hutchison Holdings Ltd.		2,748		28,863
Daikin Industries Ltd.		200		23,436
DCC PLC		216		18,675
Eiffage SA		169		16,255
Elbit Systems Ltd.		30		3,873
Epiroc AB, Class A1		462		4,675
Ferguson PLC		263		16,738
Ferrovial SA		518		12,145
Fuji Electric Co. Ltd.		300		8,511
Geberit AG		12		4,904
Hino Motors Ltd.		1,700		14,314
Hitachi Construction Machinery Co. Ltd.		400		10,614
HOCHTIEF AG		165		23,900
IHI Corp.		400		9,609
ITOCHU Corp.		3,594		65,022
Jardine Matheson Holdings Ltd.		1,083		67,536
Jardine Strategic Holdings Ltd.		966		36,157
JGC Corp.		400		5,316
JTEKT Corp.		1,000		12,305
Kawasaki Heavy Industries Ltd.		500		12,332
Keihan Holdings Co. Ltd.		100		4,206
Kingspan Group PLC		250		11,582
Komatsu Ltd.		900		20,901
Kone OYJ, Class B		197		9,945
Kubota Corp.		1,100		15,896
Kurita Water Industries Ltd.		200		5,108
Legrand SA		135		9,044

E Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer International Revenue ETF

	Shares		Value
Capital Goods (Continued)
Leonardo SpA	1,149	$	13,366
LIXIL Group Corp.	1,000		13,353
Marubeni Corp.	7,885		54,497
Melrose Industries PLC	3,744		8,935
MINEBEA MITSUMI, Inc.	500		7,512
Mitsubishi Corp.	2,900		80,540
Mitsubishi Electric Corp.	2,700		34,700
Mitsubishi Heavy Industries Ltd.	800		33,233
Mitsui & Co. Ltd.	2,625		40,756
MonotaRO Co. Ltd.	100		2,223
NGK Insulators Ltd.	500		7,264
Nidec Corp.	88		11,151
NSK Ltd.	1,100		10,306
Obayashi Corp.	1,700		17,110
OSRAM Licht AG	104		3,583
Prysmian SpA	502		9,506
Rexel SA	1,080		12,193
Rolls-Royce Holdings PLC1	1,492		17,560
Safran SA	140		19,218
Schindler Holding AG	53		10,963
Schneider Electric SE	341		26,779
Shimizu Corp.	1,500		13,037
Siemens AG	732		78,856
Siemens Gamesa Renewable Energy SA1	551		8,782
Skanska AB, Class B3	1,003		18,264
Sumitomo Corp.	2,483		34,345
Sumitomo Heavy Industries Ltd.	300		9,717
Taisei Corp.	340		15,789
Thales SA	136		16,301
Toshiba Corp.	754		24,013
TOTO Ltd.3	200		8,484
Toyota Tsusho Corp.	1,600		52,112
Vestas Wind Systems A/S	115		9,686
Vinci SA	465		45,279
Volvo AB, Class B	2,056		31,920
Total Capital Goods			1,569,188
Commercial & Professional Services—1.3%
Adecco Group AG	483		25,763
Brambles Ltd.	1,122		9,373
Experian PLC	338		9,156
G4S PLC	3,913		9,356
ISS A/S	360		10,965
Randstad NV3	463		22,599
Recruit Holdings Co. Ltd.	700		19,991
RELX PLC	479		10,246
Securitas AB, Class B	865		14,012
SGS SA	4		9,953
Toppan Printing Co. Ltd.	900		13,587
Wolters Kluwer NV	121		8,247
Total Commercial & Professional Services			163,248
Consumer Durables & Apparel—3.0%
adidas AG	100		24,321
Asics Corp.	300		4,025
Cie Financiere Richemont SA	184		13,402
Electrolux AB, Series B	535		13,780
EssilorLuxottica SA	138		15,089
Hermes International	14		9,246
Iida Group Holdings Co. Ltd.	600		10,869
	Shares		Value
Consumer Durables & Apparel (Continued)
Kering	28	$	16,072
LVMH Moet Hennessy Louis Vuitton SE	127		46,759
Moncler SpA	93		3,751
Nikon Corp.	500		7,051
Panasonic Corp.	6,700		57,760
Puma SE	10		5,805
SEB SA	48		8,084
Sega Sammy Holdings, Inc.	300		3,540
Sekisui Chemical Co. Ltd.	700		11,251
Sekisui House Ltd.	1,200		19,862
Sharp Corp.1	1,500		16,506
Sony Corp.	1,369		57,451
Swatch Group AG (The)	32		9,158
Techtronic Industries Co. Ltd.	940		6,317
Yue Yuen Industrial Holdings Ltd.	2,172		7,471
Total Consumer Durables & Apparel			367,570
Consumer Services—0.9%
Benesse Holdings, Inc.	300		7,792
Compass Group PLC	1,229		28,898
Galaxy Entertainment Group Ltd.	1,224		8,334
Genting Singapore Ltd.	6,418		4,928
GVC Holdings PLC	473		3,445
McDonald's Holdings Co. Japan Ltd.	115		5,320
Melco Resorts & Entertainment Ltd.4	268		6,054
MGM China Holdings Ltd.	1,916		4,008
Sands China Ltd.	2,249		11,302
Shangri-La Asia Ltd.	2,313		3,288
SJM Holdings Ltd.	4,031		4,601
TUI AG	1,876		17,982
Wynn Macau Ltd.	2,499		5,890
Total Consumer Services			111,842
Diversified Financials—3.0%
Credit Saison Co. Ltd.	395		5,217
Credit Suisse Group AG1	2,602		30,321
Deutsche Bank AG	4,405		35,909
EXOR NV	2,112		137,307
Groupe Bruxelles Lambert SA	140		13,617
Hong Kong Exchanges & Clearing Ltd.	259		9,027
Japan Exchange Group, Inc.	300		5,348
Mitsubishi UFJ Lease & Finance Co. Ltd.	2,000		10,191
Nomura Holdings, Inc.	4,900		17,717
ORIX Corp.	1,500		21,541
Pargesa Holding SA	121		9,477
SBI Holdings, Inc.	200		4,456
Standard Life Aberdeen PLC	6,207		21,348
Tokyo Century Corp.	200		8,700
UBS Group AG1	2,588		31,366
Wendel SA	105		13,240
Total Diversified Financials			374,782
Energy—8.1%
Aker BP ASA	213		7,593
BP PLC	30,009		218,392
Caltex Australia Ltd.	789		14,690
Eni SpA	3,886		68,741
Equinor ASA	2,304		50,526
Galp Energia SGPS SA	915		14,671
Idemitsu Kosan Co. Ltd.	1,315		44,017
Inpex Corp.	996		9,498
John Wood Group PLC	1,308		8,648

E Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer International Revenue ETF

	Shares		Value
Energy (Continued)
JXTG Holdings, Inc.	15,595	$	71,364
Neste OYJ	148		15,787
OMV AG	378		20,530
Repsol SA	2,485		42,580
Royal Dutch Shell PLC, Class A	4,758		149,635
Royal Dutch Shell PLC, Class B	3,909		123,673
Tenaris SA	370		5,199
TOTAL SA	2,313		128,611
Washington H Soul Pattinson & Co. Ltd.	185		3,458
WorleyParsons Ltd.	500		5,029
Total Energy			1,002,642
Food & Staples Retailing—4.1%
Aeon Co. Ltd.3	3,058		64,000
Carrefour SA	3,629		67,846
Casino Guichard Perrachon SA	679		29,467
FamilyMart UNY Holdings Co. Ltd.	500		12,743
ICA Gruppen AB	322		12,949
J Sainsbury PLC	8,626		26,493
Jeronimo Martins SGPS SA	1,113		16,434
Koninklijke Ahold Delhaize NV	2,364		62,976
METRO AG	1,964		32,616
Seven & i Holdings Co. Ltd.	1,100		41,502
Tesco PLC	22,327		67,525
Welcia Holdings Co. Ltd.	200		6,785
Wm Morrison Supermarkets PLC	7,029		20,842
Woolworths Group Ltd.	1,753		37,856
Total Food & Staples Retailing			500,034
Food, Beverage & Tobacco—4.1%
a2 Milk Co. Ltd.1	248		2,420
Ajinomoto Co., Inc.	700		11,188
Anheuser-Busch InBev SA	480		40,293
Asahi Group Holdings Ltd.	398		17,727
Associated British Foods PLC	577		18,338
British American Tobacco PLC	685		28,509
Carlsberg A/S, Class B	46		5,751
Coca-Cola Amatil Ltd.	1,042		6,403
Coca-Cola Bottlers Japan Holdings, Inc.	300		7,619
Coca-Cola European Partners PLC	227		11,745
Coca-Cola HBC AG1	237		8,076
Danone SA	323		24,913
Davide Campari-Milano SpA	379		3,724
Diageo PLC	350		14,311
Golden Agri-Resources Ltd.	36,700		7,587
Heineken Holding NV	214		21,458
Heineken NV	206		21,761
Imperial Brands PLC	469		16,039
Japan Tobacco, Inc.	700		17,360
Kerry Group PLC, Class A	174		19,440
Kirin Holdings Co. Ltd.	600		14,325
Marine Harvest ASA	168		3,755
MEIJI Holdings Co. Ltd.	100		8,122
Nestle SA	798		76,042
Orkla ASA	527		4,051
Pernod Ricard SA	54		9,701
Suntory Beverage & Food Ltd.	200		9,396
Swedish Match AB	66		3,372
WH Group Ltd.2	19,865		21,257
Wilmar International Ltd.	15,040		36,753
	Shares		Value
Food, Beverage & Tobacco (Continued)
Yamazaki Baking Co. Ltd.	500	$	8,113
Total Food, Beverage & Tobacco			499,549
Health Care Equipment & Services—1.5%
Alfresa Holdings Corp.	800		22,767
Fresenius Medical Care AG & Co. KGaA	208		16,792
Fresenius SE & Co. KGaA	575		32,127
Koninklijke Philips NV	422		17,208
Medipal Holdings Corp.	1,200		28,513
NMC Health PLC	89		2,649
Olympus Corp.	800		8,688
Ramsay Health Care Ltd.	180		8,228
Siemens Healthineers AG2	338		14,099
Smith & Nephew PLC	327		6,490
Sonic Healthcare Ltd.	437		7,624
Suzuken Co. Ltd.	353		20,443
Total Health Care Equipment & Services			185,628
Household & Personal Products—1.2%
Essity AB, Class B	427		12,342
Henkel AG & Co KGaA	118		11,229
Kao Corp.	200		15,753
L'Oreal SA	100		26,926
Pigeon Corp.	100		4,088
Reckitt Benckiser Group PLC	174		14,470
Shiseido Co. Ltd.	100		7,216
Unicharm Corp.	200		6,619
Unilever NV	547		31,803
Unilever PLC	400		22,908
Total Household & Personal Products			153,354
Insurance—6.9%
Aegon NV	4,052		19,491
Ageas	147		7,097
AIA Group Ltd.	2,449		24,381
Allianz SE	294		65,456
Assicurazioni Generali SpA	3,263		60,454
Aviva PLC	4,980		26,761
AXA SA	3,713		93,514
Baloise Holding AG	39		6,442
CNP Assurances	1,269		27,956
Dai-ichi Life Holdings, Inc.	2,600		36,128
Direct Line Insurance Group PLC	1,055		4,853
Hannover Rueck SE	109		15,666
Insurance Australia Group Ltd.	2,366		12,908
Japan Post Holdings Co. Ltd.	4,957		58,041
Legal & General Group PLC	2,055		7,372
Mapfre SA	5,621		15,501
Medibank Pvt Ltd.	3,616		7,089
MS&AD Insurance Group Holdings, Inc.3	1,200		36,536
Muenchener Rueckversicherungs-Gesellschaft AG in Muenchen	181		42,883
NN Group NV	237		9,854
Poste Italiane SpA2	1,840		17,917
Prudential PLC	2,271		45,498
QBE Insurance Group Ltd.	1,691		14,787
RSA Insurance Group PLC	1,259		8,331
Sampo OYJ, Class A	135		6,125
SCOR SE	339		14,449
Sompo Holdings, Inc.	800		29,619
Sony Financial Holdings, Inc.	600		11,319
Suncorp Group Ltd.	1,109		10,856

E Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer International Revenue ETF

	Shares		Value
Insurance (Continued)
Swiss Life Holding AG1	26	$	11,448
Swiss Re AG	240		23,443
T&D Holdings, Inc.	1,100		11,568
Tokio Marine Holdings, Inc.	700		33,911
Tryg A/S	84		2,307
Zurich Insurance Group AG	89		29,455
Total Insurance			849,416
Materials—8.3%
Air Liquide SA	174		22,146
Air Water, Inc.	700		10,144
AKZO Nobel NV	112		9,934
Amcor Ltd.	1,284		14,037
Anglo American PLC	983		26,303
ArcelorMittal	2,516		51,015
Asahi Kasei Corp.	1,673		17,261
BASF SE	790		58,129
BHP Group Ltd.	760		20,779
BHP Group PLC	595		14,332
BlueScope Steel Ltd.	983		9,741
Covestro AG2	274		15,082
Evonik Industries AG	567		15,458
Fortescue Metals Group Ltd.	1,414		7,142
Fresnillo PLC	134		1,521
Givaudan SA1	3		7,663
Glencore PLC1	41,597		172,338
HeidelbergCement AG	282		20,316
Hitachi Chemical Co. Ltd.3	400		8,861
Hitachi Metals Ltd.	800		9,295
Israel Chemicals Ltd.	908		4,723
JFE Holdings, Inc.	1,648		27,969
Johnson Matthey PLC	466		19,079
Kaneka Corp.	200		7,490
Kobe Steel Ltd.	1,800		13,514
Kuraray Co. Ltd.	500		6,360
LafargeHolcim Ltd.1	517		25,536
Mitsubishi Chemical Holdings Corp.	4,200		29,575
Mitsubishi Gas Chemical Co., Inc.	500		7,133
Mitsubishi Materials Corp.	500		13,200
Newcrest Mining Ltd.	153		2,773
Nippon Paint Holdings Co. Ltd.	200		7,860
Nippon Steel & Sumitomo Metal Corp.	2,364		41,733
Nitto Denko Corp.	200		10,507
Norsk Hydro ASA	3,637		14,761
Oji Holdings Corp.	2,300		14,276
Rio Tinto Ltd.	144		10,015
Rio Tinto PLC	411		23,891
Shin-Etsu Chemical Co. Ltd.	200		16,768
Smurfit Kappa Group PLC	446		12,460
Solvay SA	118		12,770
South32 Ltd.	2,414		6,396
Stora Enso OYJ, Class R	750		9,175
Sumitomo Chemical Co. Ltd.	3,700		17,216
Sumitomo Metal Mining Co. Ltd.	300		8,863
Taiheiyo Cement Corp.	300		10,001
Taiyo Nippon Sanso Corp.	400		6,093
Teijin Ltd.	600		9,898
thyssenkrupp AG	2,630		36,161
Toray Industries, Inc.	2,700		17,244
	Shares		Value
Materials (Continued)
Tosoh Corp.	600	$	9,329
Toyo Seikan Group Holdings Ltd.	400		8,193
Umicore SA	324		14,403
UPM-Kymmene OYJ	451		13,167
voestalpine AG	413		12,553
Yara International ASA	278		11,389
Total Materials			1,023,971
Media & Entertainment—0.8%
CyberAgent, Inc.3	200		8,158
Dentsu, Inc.	200		8,447
Hakuhodo DY Holdings, Inc	900		14,457
Pearson PLC	627		6,832
Publicis Groupe SA	217		11,630
Toho Co. Ltd.	200		8,032
Vivendi SA	584		16,938
WPP PLC	1,575		16,640
Yahoo Japan Corp.	3,200		7,835
Total Media & Entertainment			98,969
Pharmaceuticals, Biotechnology & Life Sciences—2.8%
Astellas Pharma, Inc.	800		11,987
AstraZeneca PLC	233		18,627
Bayer AG	439		28,393
Chugai Pharmaceutical Co. Ltd.	100		6,875
Daiichi Sankyo Co. Ltd.	300		13,823
Eurofins Scientific SE3	10		4,143
GlaxoSmithKline PLC	1,584		32,958
Grifols SA	337		9,445
H Lundbeck A/S	72		3,119
Kyowa Hakko Kirin Co. Ltd.	300		6,532
Lonza Group AG1	25		7,752
Merck KGaA	55		6,278
Novartis AG	495		47,606
Novo Nordisk A/S, Class B	209		10,952
Otsuka Holdings Co. Ltd.	300		11,788
Recordati SpA	64		2,494
Roche Holding AG	132		36,363
Sanofi	380		33,597
Sartorius Stedim Biotech	26		3,296
Takeda Pharmaceutical Co. Ltd.	613		25,038
Teva Pharmaceutical Industries Ltd.1,4	870		13,642
Vifor Pharma AG	35		4,732
Total Pharmaceuticals, Biotechnology & Life Sciences			339,440
Real Estate—1.4%
Aroundtown SA	308		2,542
Azrieli Group Ltd.	18		1,067
CapitaLand Ltd.	2,775		7,478
CK Asset Holdings Ltd.	833		7,407
Daito Trust Construction Co. Ltd.	100		13,940
Daiwa House Industry Co. Ltd.	1,000		31,793
Goodman Group	678		6,430
Hang Lung Group Ltd.	1,289		4,138
Hulic Co. Ltd.	600		5,887
ICADE	54		4,572
Lendlease Group	1,188		10,447
Mirvac Group	2,926		5,716
Mitsubishi Estate Co. Ltd.	700		12,683
Mitsui Fudosan Co. Ltd.	700		17,597
New World Development Co. Ltd.	6,581		10,915

E Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer International Revenue ETF

	Shares		Value
Real Estate (Continued)
Nomura Real Estate Holdings, Inc.	400	$	7,679
Segro PLC	543		4,765
Tokyu Fudosan Holdings Corp.	1,700		10,168
Wharf Holdings Ltd. (The)	962		2,904
Wheelock & Co. Ltd.	1,305		9,559
Total Real Estate			177,687
Retailing—1.6%
Delivery Hero SE1,2	70		2,531
Dufry AG1	96		10,083
Hennes & Mauritz AB, Class B	1,134		18,950
Industria de Diseno Textil SA	800		23,535
Isetan Mitsukoshi Holdings Ltd.	1,100		11,121
J Front Retailing Co. Ltd.	500		5,949
Jardine Cycle & Carriage Ltd.	647		15,519
Kingfisher PLC	4,659		14,255
Marks & Spencer Group PLC	3,500		12,720
Next PLC	96		6,980
Pan Pacific International Holdings Corp.	100		6,622
Rakuten, Inc.	1,300		12,309
Takashimaya Co. Ltd.3	700		9,322
Wesfarmers Ltd.	894		22,005
Yamada Denki Co. Ltd.3	3,200		15,785
Zalando SE1,2	196		7,648
Total Retailing			195,334
Semiconductors & Semiconductor Equipment—0.4%
ASM Pacific Technology Ltd.	910		10,149
NXP Semiconductors NV	169		14,938
Renesas Electronics Corp.1	1,700		7,864
STMicroelectronics NV	957		14,147
Total Semiconductors & Semiconductor Equipment			47,098
Software & Services—1.2%
Adyen NV1,2	4		3,135
Amadeus IT Group SA	138		11,064
Atos SE	149		14,388
Capgemini SE	172		20,877
Dassault Systemes SE	60		8,943
Fujitsu Ltd.	527		38,023
Otsuka Corp.	200		7,472
SAP SE	298		34,465
Temenos AG1	30		4,422
Wix.com Ltd.1	14		1,692
Total Software & Services			144,481
Technology Hardware & Equipment—2.4%
Alps Electric Co. Ltd.	500		10,435
Brother Industries Ltd.	400		7,401
Canon, Inc.	1,400		40,640
FUJIFILM Holdings Corp.	500		22,740
Hitachi High-Technologies Corp.	200		8,194
Hitachi Ltd.	2,213		71,677
Konica Minolta, Inc.	1,100		10,823
NEC Corp.	687		23,245
Nippon Electric Glass Co. Ltd.	200		5,303
Nokia OYJ	3,202		18,243
Omron Corp.	200		9,360
Ricoh Co. Ltd.	1,600		16,725
Seiko Epson Corp.	800		12,251
TDK Corp.	200		15,666
Telefonaktiebolaget LM Ericsson, Class B3	1,852		17,056
	Shares		Value
Technology Hardware & Equipment (Continued)
Venture Corp. Ltd.	379	$	5,020
Yaskawa Electric Corp.3	200		6,279
Total Technology Hardware & Equipment			301,058
Telecommunication Services—4.9%
Bezeq The Israeli Telecommunication Corp. Ltd.	2,167		1,555
BT Group PLC	8,160		23,706
Deutsche Telekom AG	4,039		67,098
Elisa OYJ	68		3,071
Iliad SA	51		5,125
KDDI Corp.3	1,600		34,476
Koninklijke KPN NV	2,094		6,645
Millicom International Cellular SA	101		6,147
Nippon Telegraph & Telephone Corp.	2,200		93,478
NTT DOCOMO, Inc.	1,600		35,438
Orange SA	2,367		38,538
Proximus SADP	245		7,073
Softbank Corp.3	2,300		25,912
SoftBank Group Corp.	741		71,934
Spark New Zealand Ltd.	2,983		7,731
Swisscom AG	21		10,269
Tele2 AB, Class B	409		5,461
Telecom Italia SpA1,3	30,574		19,033
Telefonica Deutschland Holding AG	2,259		7,100
Telefonica SA	4,916		41,228
Telenor ASA	502		10,067
Telia Co. AB	2,237		10,117
Telstra Corp. Ltd.	7,236		17,065
TPG Telecom Ltd.	664		3,278
United Internet AG	171		6,246
Vodafone Group PLC	21,804		39,720
Total Telecommunication Services			597,511
Transportation—3.1%
A.P. Moeller - Maersk A/S, Class A	12		14,529
A.P. Moeller - Maersk A/S, Class B	11		13,967
Aena SME SA2	51		9,191
Aeroports de Paris	48		9,292
ANA Holdings, Inc.3	500		18,336
Atlantia SpA	373		9,671
Bollore SA	5,911		26,734
Central Japan Railway Co.	100		23,228
Deutsche Lufthansa AG	1,341		29,460
Deutsche Post AG	2,028		66,037
DSV A/S	170		14,073
East Japan Railway Co.	300		28,947
easyJet PLC	547		7,965
Fraport AG Frankfurt Airport Services Worldwide	113		8,658
Mitsui OSK Lines Ltd.	600		12,907
Nippon Express Co. Ltd.	300		16,696
Nippon Yusen KK	1,200		17,585
Royal Mail PLC	3,400		10,558
Seibu Holdings, Inc.	500		8,750
SG Holdings Co. Ltd.	358		10,431
Singapore Airlines Ltd.	1,917		13,672
Yamato Holdings Co. Ltd.	600		15,498
Total Transportation			386,185
Utilities—6.0%
AGL Energy Ltd.	666		10,299
Centrica PLC	17,318		25,771

E Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer International Revenue ETF

	Shares		Value
Utilities (Continued)
Chubu Electric Power Co., Inc.	1,500	$	23,425
Chugoku Electric Power Co., Inc. (The)	900		11,229
E.ON SE	2,946		32,788
EDP - Energias de Portugal SA	3,459		13,613
Electric Power Development Co. Ltd.	300		7,307
Electricite de France SA	4,044		55,352
Endesa SA	736		18,793
Enel SpA	11,154		71,438
Engie SA	3,596		53,622
Iberdrola SA	3,640		31,986
Innogy SE2	662		30,640
Kansai Electric Power Co., Inc. (The)	1,700		25,066
Kyushu Electric Power Co., Inc.	1,300		15,351
National Grid PLC	1,491		16,530
Naturgy Energy Group SA3	791		22,142
Orsted A/S2	111		8,421
RWE AG	1,398		37,517
Severn Trent PLC	130		3,347
SSE PLC	1,578		24,407
Suez	1,241		16,457
Terna Rete Elettrica Nazionale SpA	671		4,255
Toho Gas Co. Ltd.	100		4,490
Tohoku Electric Power Co., Inc.	1,300		16,584
Tokyo Electric Power Co. Holdings, Inc.1	7,400		46,800
Tokyo Gas Co. Ltd.	500		13,523
Uniper SE	2,239		67,603
United Utilities Group PLC	316		3,353
Veolia Environnement SA	1,166		26,093
Verbund AG	50		2,402
Total Utilities			740,604
Total Common Stocks
(Cost $12,572,861)			12,130,900
PREFERRED STOCKS—0.8%
Automobiles & Components—0.7%
Volkswagen AG, 2.75%	548		86,342
Bayerische Motoren Werke AG, 6.71%	80		5,264
Porsche Automobil Holding SE, 3.08%	14		879
Total Automobiles & Components			92,485
Capital Goods—0.0%5
Rolls-Royce Holdings PLC, Class C1,6	279,201		364
Health Care Equipment & Services—0.0%5
Sartorius AG, 0.39%	9		1,545
Household & Personal Products—0.1%
Henkel AG & Co KGaA, 1.98%	78		7,970
Total Preferred Stocks
(Cost $105,972)			102,364
Money Market Fund—0.0%5
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%7
(Cost $4,407)	4,407		4,407
Investment of Cash Collateral for Securities Loaned—2.0%
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%7
(Cost $247,598)	247,598		247,598
Total Investments—101.2% (Cost $12,930,838)			12,485,269
Liabilities in Excess of Other Assets—(1.2)%			(149,944	)
Net Assets—100.0%		$	12,335,325

PLC - Public Limited Company

1.	Non-income producing security.
2.	Represents securities sold under Rule 144A, which are exempt from registration under the Securities Act of 1933, as amended. These securities have been determined to be liquid under guidelines established by the Board of Trustees. These securities amount to $150,586 or 1.22% of the Fund’s net assets at period end.
3.	All or a portion of the security was on loan. The aggregate value of the securities on loan was $399,762; total value of the collateral held by the Fund was $422,952. The total value of the collateral includes non-cash U.S. Treasury securities collateral having a value of $175,354.
4.	American Depositary Receipt.
5.	Less than 0.05%
6.	The value of this security was determined using significant unobservable inputs. See Note 2 of the accompanying Notes.
7.	Rate shown represents annualized 7-day yield as of March 31, 2019.

E Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer International Revenue ETF

Geographical Holdings
Country		Value		% of Net Assets
Japan	$	4,063,087		32.9	%
France		1,523,135		12.4
Germany		1,513,970		12.3
United Kingdom		1,266,875		10.3
Netherlands		680,941		5.5
Switzerland		669,097		5.4
Australia		412,224		3.3
Spain		410,660		3.3
Italy		336,877		2.7
United States		268,743		2.1
Hong Kong		255,424		2.1
Sweden		187,060		1.5
Singapore		137,165		1.1
Norway		109,224		0.9
Belgium		108,680		0.9
Denmark		107,964		0.9
Finland		87,771		0.7
Luxembourg		60,358		0.5
Ireland		54,604		0.4
Austria		53,464		0.4
Portugal		44,719		0.4
Israel		34,511		0.3
Macau		34,135		0.3
South Africa		26,303		0.2
China		17,811		0.2
New Zealand		10,151		0.1
Colombia		6,147		0.1
United Arab Emirates		2,649		0.0	1
Mexico		1,520		0.0	1
Total Investments		12,485,269		101.2
Liabilities in Excess of Other Assets		(149,944	)	(1.2	)
Net Assets	$	12,335,325		100.0	%

1. Less than 0.05%

Schedule of Investments March 31, 2019 Unaudited

Oppenheimer Global Revenue ETF

	Shares		Value
COMMON STOCKS—98.6%
Automobiles & Components—6.3%
Aisin Seiki Co. Ltd.		500	$	17,866
Aptiv PLC		133		10,572
BAIC Motor Corp. Ltd., Class H1		5,000		3,268
Bayerische Motoren Werke AG		556		42,921
Bridgestone Corp.		448		17,267
Daimler AG		1,254		73,571
Denso Corp.		584		22,777
Fiat Chrysler Automobiles NV2		2,384		35,527
Ford Motor Co.		6,693		58,765
Geely Automobile Holdings Ltd.		3,487		6,663
General Motors Co.		1,355		50,270
Goodyear Tire & Rubber Co. (The)		415		7,532
Honda Motor Co. Ltd.		2,000		54,118
Hyundai Mobis Co. Ltd.		73		13,409
Hyundai Motor Co.		297		31,267
Isuzu Motors Ltd.		800		10,509
Kia Motors Corp.		638		19,869
Lear Corp.		79		10,721
Magna International, Inc.		331		16,122
Mazda Motor Corp.		1,400		15,665
Mitsubishi Motors Corp.		1,935		10,279
Nissan Motor Co. Ltd.		5,236		42,963
Peugeot SA		1,395		34,053
Pirelli & C SpA1,2		695		4,478
Renault SA		424		28,046
Subaru Corp.		500		11,395
Sumitomo Electric Industries Ltd.		1,200		15,921
Suzuki Motor Corp.		273		12,081
Tata Motors Ltd.2		6,260		15,746
Tesla, Inc.2,3		25		6,997
Toyota Motor Corp.		1,895		111,062
Yamaha Motor Co. Ltd.		400		7,846
Total Automobiles & Components				819,546
Banks—7.5%
Agricultural Bank of China Ltd., Class A		9,500		5,273
Alior Bank SA2		214		3,335
Australia & New Zealand Banking Group Ltd.		692		12,795
Axis Bank Ltd.2		601		6,743
Banco Bilbao Vizcaya Argentaria SA3		3,624		20,724
Banco Bradesco SA		2,601		25,297
Banco de Chile		64,404		9,483
Banco do Brasil SA		1,409		17,639
Banco Santander Brasil SA		1,103		12,462
Banco Santander SA		8,488		39,500
Banco Santander SA4		902		4,176
Bank Central Asia Tbk PT		7,275		14,177
Bank Handlowy w Warszawie SA		305		5,370
Bank Millennium SA2		1,847		4,307
Bank of America Corp.		1,448		39,950
Bank of China Ltd., Class H		43,863		19,892
Bank of Communications Co. Ltd., Class A		6,600		6,128
BDO Unibank, Inc.		2,317		5,904
BNP Paribas SA		860		41,146
CaixaBank SA		2,463		7,699
China CITIC Bank Corp. Ltd., Class A		4,700		4,399
China Construction Bank Corp., Class H		61,192		52,462
China Merchants Bank Co. Ltd., Class A		1,000		5,047
		Shares		Value
Banks (Continued)
China Minsheng Banking Corp. Ltd., Class A		2,820	$	2,660
Citigroup, Inc.		607		37,768
Commercial International Bank Egypt SAE		833		3,276
Commerzbank AG2		893		6,919
Credit Agricole SA		3,153		38,130
DNB ASA		501		9,239
Dubai Islamic Bank PJSC		8,526		11,374
Erste Group Bank AG2		242		8,902
Grupo Financiero Banorte SAB de CV, Class O		836		4,549
HSBC Holdings PLC		4,702		38,189
ICICI Bank Ltd.		1,920		11,100
Industrial & Commercial Bank of China Ltd., Class H		30,259		22,164
ING Groep NV		1,999		24,206
JPMorgan Chase & Co.		546		55,272
Kasikornbank PCL		2,311		13,654
Lloyds Banking Group PLC		33,444		27,080
Masraf Al Rayan QSC		1,123		11,336
MCB Bank Ltd.		2,156		3,010
Mitsubishi UFJ Financial Group, Inc.		4,971		24,701
Moneta Money Bank AS1		1,956		6,751
OTP Bank Nyrt		211		9,282
Postal Savings Bank of China Co. Ltd., Class H1		14,000		8,008
Royal Bank of Canada		448		33,809
Royal Bank of Scotland Group PLC		3,324		10,698
Sberbank of Russia PJSC4		1,688		22,383
Security Bank Corp.		1,186		3,907
Shanghai Commercial & Savings Bank Ltd. (The)		6,000		9,481
Societe Generale SA		975		28,218
Standard Chartered PLC		1,620		12,482
State Bank of India2		5,053		23,396
Sumitomo Mitsui Financial Group, Inc.		700		24,513
SVB Financial Group2		18		4,003
UniCredit SpA		890		11,420
VTB Bank PJSC		5,613		6,410
Wells Fargo & Co.		849		41,024
Total Banks				973,222
Capital Goods—10.2%
ABB Ltd.		1,299		24,404
ACS Actividades de Construccion y Servicios SA		428		18,819
AGC, Inc.		200		7,011
Airbus SE		247		32,699
Alfa SAB de CV, Class A		6,082		6,468
Alliance Global Group, Inc.		9,246		2,845
ANDRITZ AG		146		6,269
Arconic, Inc.		381		7,281
BAE Systems PLC		1,940		12,195
BOC Aviation Ltd.1		356		2,905
Boeing Co. (The)		87		33,183
Bombardier, Inc., Class B2		3,120		6,002
Bouygues SA		554		19,813
CAE, Inc.		253		5,607
Caterpillar, Inc.		156		21,136
China Communications Construction Co. Ltd., Class H		8,462		8,753
China Railway Construction Corp. Ltd., Class H		5,425		7,104

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Global Revenue ETF

	Shares		Value
Capital Goods (Continued)
China Railway Group Ltd., Class H	8,537	$	7,787
China Shipbuilding Industry Co. Ltd., Class A	4,400		3,824
China State Construction International Holdings Ltd.	3,814		3,571
CIMIC Group Ltd.	230		7,885
CITIC Ltd.	17,071		25,487
CJ Corp.	98		10,749
CNH Industrial NV	1,066		10,873
Cummins, Inc.	82		12,945
Daewoo Engineering & Construction Co. Ltd.2	1,128		5,048
Daewoo Shipbuilding & Marine Engineering Co. Ltd.2	129		3,176
DCC PLC	135		11,672
Deere & Co.	102		16,304
Dongfang Electric Corp. Ltd., Class A2	1,400		2,210
Embraer SA	597		2,830
Ferguson PLC	182		11,583
Finning International, Inc.	250		4,446
Fluor Corp.	252		9,274
Fosun International Ltd.	5,005		8,480
Fuji Electric Co. Ltd.	200		5,674
General Dynamics Corp.	99		16,759
General Electric Co.	4,205		42,008
GS Engineering & Construction Corp.	142		5,329
Hanwha Corp.	523		14,007
HD Supply Holdings, Inc.2	182		7,890
Hino Motors Ltd.	1,000		8,420
Hitachi Construction Machinery Co. Ltd.	200		5,307
HOCHTIEF AG	100		14,485
Huntington Ingalls Industries, Inc.	29		6,009
Hyundai Engineering & Construction Co. Ltd.	116		5,457
Hyundai Heavy Industries Co. Ltd.2	44		4,613
Hyundai Heavy Industries Holdings Co. Ltd.	21		6,161
IHI Corp.	200		4,805
Ingersoll-Rand PLC	119		12,846
ITOCHU Corp.	1,722		31,154
Jacobs Engineering Group, Inc.	121		9,098
Jardine Matheson Holdings Ltd.	688		42,904
Jardine Strategic Holdings Ltd.	674		25,228
JGC Corp.	300		3,987
Johnson Controls International PLC	459		16,955
JTEKT Corp.	600		7,383
Kajima Corp.	632		9,330
Kawasaki Heavy Industries Ltd.	300		7,399
Kingspan Group PLC	173		8,015
KOC Holding AS	4,658		13,266
Komatsu Ltd.	479		11,124
Kubota Corp.	700		10,116
Leonardo SpA	583		6,782
LIXIL Group Corp.	500		6,677
Lockheed Martin Corp.	76		22,812
Marubeni Corp.	3,700		25,573
Metallurgical Corp. of China., Ltd., Class H	17,998		5,319
MINEBEA MITSUMI, Inc.	300		4,507
MISUMI Group, Inc.	127		3,158
Mitsubishi Corp.	1,460		40,548
Mitsubishi Electric Corp.	1,454		18,686
Mitsubishi Heavy Industries Ltd.	500		20,771
	Shares		Value
Capital Goods (Continued)
Mitsui & Co. Ltd.	1,338	$	20,774
MonotaRO Co. Ltd.	100		2,223
Nabtesco Corp.	63		1,836
Northrop Grumman Corp.	45		12,132
NSK Ltd.	800		7,495
Obayashi Corp.	1,000		10,065
Posco International Corp.	563		8,804
Raytheon Co.	73		13,292
Rexel SA	734		8,287
Rolls-Royce Holdings PLC2	870		10,239
Samsung C&T Corp.	155		14,611
Samsung Engineering Co. Ltd.2	226		3,205
Samsung Heavy Industries Co. Ltd.2	424		3,085
Schindler Holding AG	75		15,544
Siemens AG	382		41,151
Siemens Gamesa Renewable Energy SA2	307		4,893
Sinotruk Hong Kong Ltd.	2,000		4,255
SK Holdings Co. Ltd.	175		41,703
SNC-Lavalin Group, Inc.	231		5,863
Spirit AeroSystems Holdings, Inc., Class A	64		5,858
Sumitomo Corp.	1,300		17,982
Taisei Corp.	200		9,288
Textron, Inc.	185		9,372
Toshiba Corp.	354		11,274
TOTO Ltd.3	100		4,242
Toyota Tsusho Corp.	800		26,056
United Technologies Corp.	250		32,222
Vestas Wind Systems A/S	70		5,896
Vinci SA	369		35,931
Volvo AB, Class B	1,237		19,205
W.W. Grainger, Inc.	21		6,319
Wabtec Corp.	36		2,654
Weichai Power Co. Ltd., Class H	2,741		4,379
Total Capital Goods			1,311,335
Commercial & Professional Services—0.8%
Copart, Inc.2,3	80		4,847
Country Garden Services Holdings Co. Ltd.2	788		1,468
Dai Nippon Printing Co. Ltd.	500		11,957
G4S PLC	2,915		6,970
ISS A/S	260		7,919
ManpowerGroup, Inc.	150		12,404
Persol Holdings Co. Ltd.	300		4,857
Randstad NV3	309		15,082
Recruit Holdings Co. Ltd.	400		11,423
SGS SA	9		22,394
Total Commercial & Professional Services			99,321
Consumer Durables & Apparel—2.1%
adidas AG	60		14,593
Capri Holdings Ltd.2	89		4,072
D.R. Horton, Inc.	229		9,476
Electrolux AB, Series B	378		9,736
Feng TAY Enterprise Co. Ltd.	1,000		7,073
Fila Korea Ltd.	64		4,398
Haier Electronics Group Co. Ltd.2	3,123		9,071
Husqvarna AB, Class B	664		5,436
Iida Group Holdings Co. Ltd.	500		9,057
LG Electronics, Inc.	310		20,510
LVMH Moet Hennessy Louis Vuitton SE	77		28,350

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Global Revenue ETF

	Shares		Value
Consumer Durables & Apparel (Continued)
Mattel, Inc.2,3	193	$	2,509
Newell Brands, Inc.3	288		4,418
NIKE, Inc., Class B	206		17,347
Oppein Home Group, Inc., Class A	100		1,807
Panasonic Corp.	3,370		29,052
Polaris Industries, Inc.3	58		4,897
PulteGroup, Inc.	234		6,543
PVH Corp.	65		7,927
Sega Sammy Holdings, Inc.	300		3,540
Sharp Corp.2	800		8,803
Sony Corp.	636		26,690
Tatung Co. Ltd.2	2,000		1,577
Under Armour, Inc., Class A2	141		2,981
VF Corp.	100		8,691
Whirlpool Corp.	70		9,302
Yue Yuen Industrial Holdings Ltd.	1,707		5,871
Zhejiang Semir Garment Co. Ltd., Class A	1,300		2,319
Total Consumer Durables & Apparel			266,046
Consumer Services—0.8%
Alsea SAB de CV	1,378		2,889
Aramark	353		10,431
Benesse Holdings, Inc.	300		7,792
Chipotle Mexican Grill, Inc.2	6		4,262
Flight Centre Travel Group Ltd.	102		3,047
Hilton Worldwide Holdings, Inc.	109		9,059
Marriott International, Inc., Class A	79		9,882
Melco Resorts & Entertainment Ltd.4	266		6,009
MGM Resorts International	306		7,852
Minor International PCL	6,618		8,133
SJM Holdings Ltd.	3,752		4,283
Stars Group, Inc. (The)2	179		3,130
Tabcorp Holdings Ltd.	1,468		4,818
TUI AG	1,107		10,611
Yum China Holdings, Inc.	142		6,377
Total Consumer Services			98,575
Diversified Financials—3.2%
Ally Financial, Inc.	277		7,615
Ameriprise Financial, Inc.	75		9,608
ASX Ltd.	184		9,128
AXA Equitable Holdings, Inc.	348		7,009
Berkshire Hathaway, Inc., Class B2	254		51,026
Brookfield Asset Management, Inc., Class A	542		25,259
Capital One Financial Corp.	173		14,132
Cboe Global Markets, Inc.	45		4,295
Challenger Ltd.	331		1,947
CI Financial Corp.	482		6,581
Credit Suisse Group AG2	1,613		18,796
Deutsche Bank AG	2,080		16,956
EXOR NV	933		60,657
Goldman Sachs Group, Inc. (The)	97		18,623
GT Capital Holdings, Inc.2	194		3,441
Haci Omer Sabanci Holding AS	4,760		6,605
Hargreaves Lansdown PLC	208		5,051
Huaxi Securities Co., Ltd., Class A	900		1,651
Jefferies Financial Group, Inc.	312		5,862
KKR & Co., Inc., Class A3	187		4,393
Morgan Stanley	526		22,197
Muangthai Capital PCL	1,500		2,080
	Shares		Value
Diversified Financials (Continued)
Onex Corp.	255	$	14,388
ORIX Corp.	721		10,354
Reinet Investments SCA	180		3,080
S&P Global, Inc.	53		11,159
SDIC Capital Co., Ltd., Class A	700		1,514
Singapore Exchange Ltd.	3,106		16,763
Standard Life Aberdeen PLC	3,459		11,897
Synchrony Financial	273		8,709
Tokyo Century Corp.	100		4,350
UBS Group AG2	1,678		20,337
Voya Financial, Inc.3	121		6,045
Total Diversified Financials			411,508
Energy—10.9%
Baker Hughes a GE Co.3	520		14,414
Banpu PCL	9,564		4,882
Bharat Petroleum Corp. Ltd.	3,183		18,266
BP PLC	14,434		105,044
Bukit Asam Tbk PT	8,307		2,450
Caltex Australia Ltd.	426		7,931
Cenovus Energy, Inc.	755		6,556
Chevron Corp.	508		62,575
China Oilfield Services Ltd., Class H	3,332		3,599
China Petroleum & Chemical Corp., Class H	41,986		33,108
CNOOC Ltd.	10,211		19,121
ConocoPhillips	382		25,495
Empresas COPEC SA	702		8,913
Enbridge, Inc.	501		18,151
Eni SpA	2,124		37,572
EOG Resources, Inc.	223		21,225
Equinor ASA	1,445		31,689
Exxon Mobil Corp.	1,343		108,514
Gazprom PJSC4	9,781		44,151
Grupa Lotos SA	156		3,394
Guanghui Energy Co., Ltd., Class A	2,800		1,812
Hindustan Petroleum Corp. Ltd.	4,600		18,848
HollyFrontier Corp.	148		7,292
Idemitsu Kosan Co. Ltd.	684		22,896
Indian Oil Corp. Ltd.	14,837		34,879
John Wood Group PLC	1,113		7,359
JXTG Holdings, Inc.	7,300		33,405
LUKOIL PJSC4	571		51,162
Marathon Petroleum Corp.	571		34,174
Neste OYJ	94		10,027
Oil & Natural Gas Corp. Ltd.	10,315		23,787
OMV AG	229		12,438
Origin Energy Ltd.	831		4,250
PetroChina Co. Ltd., Class A	11,800		13,345
Petroleo Brasileiro SA	4,220		33,778
Phillips 66	458		43,588
Plains GP Holdings LP, Class A2,3	618		15,401
Polski Koncern Naftowy ORLEN SA	409		10,416
PrairieSky Royalty Ltd.	408		5,497
PTT PCL	20,232		30,601
Reliance Industries Ltd.	1,641		32,293
Repsol SA	1,465		25,102
Rosneft Oil Co. PJSC2	6,997		43,941
Royal Dutch Shell PLC, Class A	4,147		130,420
SK Innovation Co. Ltd.	128		20,241

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Global Revenue ETF

	Shares		Value
Energy (Continued)
S-Oil Corp.	120	$	9,472
TechnipFMC PLC	561		13,195
TOTAL SA	1,280		71,173
Tupras Turkiye Petrol Rafinerileri AS	358		7,908
Ultrapar Participacoes SA	848		10,241
Valero Energy Corp.	508		43,094
Washington H Soul Pattinson & Co. Ltd.	159		2,972
WorleyParsons Ltd.	512		5,150
Total Energy			1,407,207
Food & Staples Retailing—5.4%
Aeon Co. Ltd.3	1,600		33,486
Alimentation Couche-Tard, Inc., Class B	335		19,740
Berli Jucker PCL	4,302		6,710
Bid Corp. Ltd.	424		8,762
Carrefour SA	1,813		33,895
Casino Guichard Perrachon SA	333		14,452
Clicks Group Ltd.	499		6,374
Costco Wholesale Corp.	265		64,167
Empire Co. Ltd.	298		6,453
George Weston Ltd.	321		23,088
J Sainsbury PLC	4,885		15,003
Koninklijke Ahold Delhaize NV	1,229		32,740
Kroger Co. (The)	1,512		37,195
Magnit PJSC	569		8,023
METRO AG	984		16,341
Raia Drogasil SA	290		4,866
Seven & i Holdings Co. Ltd.	600		22,637
Sun Art Retail Group Ltd.	7,064		6,884
Sysco Corp.	433		28,907
Tesco PLC	11,052		33,425
Walgreens Boots Alliance, Inc.	712		45,048
Wal-Mart de Mexico SAB de CV	4,634		12,404
Walmart, Inc.	1,818		177,310
Welcia Holdings Co. Ltd.	100		3,392
Woolworths Group Ltd.	1,007		21,746
X5 Retail Group NV	365		9,096
Total Food & Staples Retailing			692,144
Food, Beverage & Tobacco—4.1%
Ajinomoto Co., Inc.	400		6,393
Anadolu Efes Biracilik Ve Malt Sanayii AS	1,757		5,446
Anheuser-Busch InBev SA	293		24,596
Arca Continental SAB de CV	811		4,521
Archer-Daniels-Midland Co.	644		27,776
Asahi Group Holdings Ltd.	279		12,427
Associated British Foods PLC	332		10,551
BRF SA2	916		5,331
British American Tobacco PLC	337		14,026
Bunge Ltd.	354		18,787
Calbee, Inc.	200		5,388
Charoen Pokphand Foods PCL	13,145		10,562
China Agri-Industries Holdings Ltd.	15,999		5,483
China Mengniu Dairy Co. Ltd.2	1,840		6,844
China Resources Beer Holdings Co. Ltd.	1,073		4,518
CJ CheilJedang Corp.	30		8,537
Coca-Cola Amatil Ltd.	767		4,713
Coca-Cola Bottlers Japan Holdings, Inc.	184		4,673
Fomento Economico Mexicano SAB de CV	654		6,040
Genting Plantations Bhd	4,621		11,998
	Shares		Value
Food, Beverage & Tobacco (Continued)
Grupo Bimbo SAB de CV, Series A	3,148	$	6,586
Hormel Foods Corp.	232		10,384
Indofood Sukses Makmur Tbk PT	14,483		6,484
Ingredion, Inc.	71		6,723
Japan Tobacco, Inc.	487		12,078
JBS SA	4,796		19,619
Kikkoman Corp.	100		4,906
Kirin Holdings Co. Ltd.	346		8,260
Lamb Weston Holdings, Inc.	54		4,047
MEIJI Holdings Co. Ltd.	100		8,122
Molson Coors Brewing Co., Class B	93		5,547
Mondelez International, Inc., Class A	358		17,871
Nestle SA	547		52,124
Nisshin Seifun Group, Inc.	300		6,884
Ottogi Corp.	6		4,075
PepsiCo, Inc.	262		32,108
Philip Morris International, Inc.	159		14,054
QL Resources Bhd	4,000		6,741
Saputo, Inc.	259		8,831
Sime Darby Plantation Bhd	6,275		7,716
Standard Foods Corp.	4,441		7,464
Tiger Brands Ltd.	230		4,226
Tingyi Cayman Islands Holding Corp.	2,617		4,314
Toyo Suisan Kaisha Ltd.	200		7,616
Tyson Foods, Inc., Class A	237		16,455
WH Group Ltd.1	11,776		12,601
Wilmar International Ltd.	10,565		25,818
Yamazaki Baking Co. Ltd.	400		6,491
Total Food, Beverage & Tobacco			526,755
Health Care Equipment & Services—4.3%
Alfresa Holdings Corp.	500		14,230
AmerisourceBergen Corp.	716		56,936
Anthem, Inc.	117		33,577
Asahi Intecc Co. Ltd.	100		4,698
Cardinal Health, Inc.	943		45,405
Centene Corp.2	423		22,461
Cigna Corp.	270		43,421
CVS Health Corp.	1,233		66,496
DaVita, Inc.2	100		5,429
DexCom, Inc.2,3	20		2,382
Fisher & Paykel Healthcare Corp. Ltd.	593		6,349
Fresenius Medical Care AG & Co. KGaA	146		11,787
Fresenius SE & Co. KGaA	307		17,153
HCA Healthcare, Inc.	144		18,775
IHH Healthcare Bhd	6,106		8,630
McKesson Corp.	575		67,310
Medipal Holdings Corp.	700		16,633
Siemens Healthineers AG1	270		11,263
Suzuken Co. Ltd.	224		12,972
UnitedHealth Group, Inc.	317		78,381
WellCare Health Plans, Inc.2	40		10,790
Total Health Care Equipment & Services			555,078
Household & Personal Products—0.9%
Amorepacific Corp.	26		4,318
AMOREPACIFIC Group	78		4,783
Coty, Inc., Class A	417		4,795
Essity AB, Class B	455		13,152
Hengan International Group Co. Ltd.	610		5,346

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Global Revenue ETF

	Shares		Value
Household & Personal Products (Continued)
Natura Cosmeticos SA	315	$	3,674
Pigeon Corp.	100		4,088
Procter & Gamble Co. (The)	323		33,608
Shiseido Co. Ltd.	100		7,216
Unilever Indonesia Tbk PT	2,429		8,397
Unilever NV	532		30,931
Total Household & Personal Products			120,308
Insurance—5.6%
Aegon NV	1,829		8,798
Aflac, Inc.	219		10,950
AIA Group Ltd.	1,814		18,059
Alleghany Corp.2	8		4,899
Allianz SE	144		32,060
Allstate Corp. (The)	164		15,446
American International Group, Inc.	270		11,626
Aon PLC	43		7,340
Arthur J. Gallagher & Co.	99		7,732
Assicurazioni Generali SpA	1,523		28,217
Assurant, Inc.	44		4,176
Aviva PLC	2,613		14,042
AXA SA	1,870		47,097
China Life Insurance Co. Ltd., Class H	3,796		10,203
China Pacific Insurance Group Co. Ltd., Class H	1,703		6,682
China Taiping Insurance Holdings Co. Ltd.	3,094		9,223
Chubb Ltd.	104		14,568
Cincinnati Financial Corp.	80		6,872
CNP Assurances	843		18,572
Dai-ichi Life Holdings, Inc.	1,200		16,674
DB Insurance Co. Ltd.	113		6,839
Direct Line Insurance Group PLC	1,451		6,674
Everest Re Group Ltd.	19		4,103
Fairfax Financial Holdings Ltd.	13		6,023
Fidelity National Financial, Inc.	117		4,276
Great-West Lifeco, Inc.	570		13,807
Hanwha Life Insurance Co. Ltd.	2,217		7,813
Hyundai Marine & Fire Insurance Co. Ltd.	197		6,578
iA Financial Corp., Inc.	85		3,135
Insurance Australia Group Ltd.	1,011		5,516
Intact Financial Corp.	72		6,094
Japan Post Holdings Co. Ltd.	2,300		26,931
Liberty Holdings Ltd.3	855		5,990
Loews Corp.	96		4,601
Manulife Financial Corp.	509		8,611
Mapfre SA	3,073		8,474
Markel Corp.2	6		5,977
Medibank Pvt Ltd.	1,814		3,556
MetLife, Inc.	370		15,751
MS&AD Insurance Group Holdings, Inc.3	600		18,268
Muenchener Rueckversicherungs-Gesellschaft AG in Muenchen	89		21,086
People’s Insurance Co. Group of China Ltd. (The), Class H	12,547		5,370
PICC Property & Casualty Co. Ltd., Class H	4,887		5,553
Ping An Insurance Group Co. of China Ltd., Class H	1,332		14,915
Poste Italiane SpA1	887		8,637
Power Corp. of Canada	456		10,636
Power Financial Corp.	521		12,175
	Shares		Value
Insurance (Continued)
Powszechny Zaklad Ubezpieczen SA	223	$	2,356
Prudential Financial, Inc.	143		13,139
Prudential PLC	1,123		22,499
QBE Insurance Group Ltd.	594		5,194
Reinsurance Group of America, Inc.	45		6,389
RenaissanceRe Holdings Ltd.	17		2,440
RSA Insurance Group PLC	914		6,048
Samsung Fire & Marine Insurance Co. Ltd.	40		10,607
Samsung Life Insurance Co. Ltd.	110		8,150
SCOR SE	228		9,718
Sompo Holdings, Inc.	400		14,810
Sony Financial Holdings, Inc.	300		5,659
Sul America SA	453		3,469
Sun Life Financial, Inc.3	185		7,109
Suncorp Group Ltd.	361		3,534
T&D Holdings, Inc.	600		6,310
Tokio Marine Holdings, Inc.	400		19,378
Torchmark Corp.	69		5,655
Travelers Cos., Inc. (The)	97		13,305
Unum Group	110		3,721
W.R. Berkley Corp.3	89		7,540
Willis Towers Watson PLC	40		7,026
Total Insurance			724,681
Materials—6.5%
Akzo Nobel NV	149		13,215
Aluminum Corp of China Ltd., Class A2	1,700		1,060
Aluminum Corp. of China Ltd., Class H2	10,775		3,967
Ambuja Cements Ltd.	1,905		6,470
Amcor Ltd.	652		7,128
Anglo American Platinum Ltd.	89		4,543
AngloGold Ashanti Ltd.	378		5,022
ArcelorMittal	1,426		28,914
Asahi Kasei Corp.	1,003		10,348
Avery Dennison Corp.	85		9,605
Ball Corp.	166		9,605
BASF SE	489		35,981
BlueScope Steel Ltd.	588		5,827
Boliden AB	320		9,129
CCL Industries, Inc., Class B	102		4,130
Cemex SAB de CV2	9,728		4,549
Chemours Co. (The)	138		5,128
China Hongqiao Group Ltd.	8,000		6,023
China National Building Material Co. Ltd., Class H	6,260		4,936
China Oriental Group Co. Ltd.	6,000		3,768
Covestro AG1	159		8,752
CRH PLC	154		4,766
Crown Holdings, Inc.2	124		6,767
DowDuPont, Inc.	755		40,249
Formosa Chemicals & Fibre Corp.	4,000		14,536
Freeport-McMoRan, Inc.	710		9,152
Glencore PLC2	19,548		80,988
Grasim Industries Ltd.	645		7,988
Grupo Mexico SAB de CV, Series B	2,068		5,689
HeidelbergCement AG	158		11,383
Hindalco Industries Ltd.	3,052		9,054
International Paper Co.	252		11,660
Jastrzebska Spolka Weglowa SA2	153		2,434

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Global Revenue ETF

	Shares		Value
Materials (Continued)
JFE Holdings, Inc.	993	$	16,853
Jiangxi Copper Co. Ltd., Class H	6,787		9,009
Johnson Matthey PLC	315		12,897
Kinross Gold Corp.2	1,132		3,898
Kobe Steel Ltd.	1,000		7,508
Kumba Iron Ore Ltd.	162		4,834
LafargeHolcim Ltd.2	355		17,534
LG Chem Ltd.	37		11,930
Lotte Chemical Corp.	30		7,678
LyondellBasell Industries NV, Class A	245		20,600
Maanshan Iron & Steel Co. Ltd., Class H	6,000		2,935
Maruichi Steel Tube Ltd.	200		5,827
Mexichem SAB de CV	1,659		3,969
Mitsubishi Chemical Holdings Corp.	2,170		15,280
Mitsubishi Materials Corp.	300		7,920
MMC Norilsk Nickel PJSC4	502		10,602
Nan Ya Plastics Corp.	8,000		20,480
Nine Dragons Paper Holdings Ltd.	3,777		3,599
Nippon Paint Holdings Co. Ltd.	100		3,930
Nippon Steel & Sumitomo Metal Corp.	1,380		24,362
Oji Holdings Corp.	1,200		7,448
Orica Ltd.	470		5,886
Pabrik Kertas Tjiwi Kimia Tbk PT	1,199		928
Pidilite Industries Ltd.	387		6,962
Polymetal International PLC	397		4,472
POSCO	114		25,409
POSCO Chemical Co., Ltd.	25		1,326
Sappi Ltd.	941		4,349
Sasol Ltd.	360		11,233
South32 Ltd.	1,624		4,303
Southern Copper Corp.3	232		9,206
Sumitomo Chemical Co. Ltd.	2,266		10,543
Sumitomo Metal Mining Co. Ltd.	200		5,909
Taiheiyo Cement Corp.	200		6,668
Tata Steel Ltd.	1,719		12,928
Teck Resources Ltd., Class B	246		5,694
thyssenkrupp AG	1,354		18,616
Tongling Nonferrous Metals Group Co. Ltd., Class A	13,600		5,181
Toray Industries, Inc.	1,766		11,279
Toyo Seikan Group Holdings Ltd.	300		6,144
Umicore SA	249		11,069
Vale SA	1,274		16,673
Vedanta Ltd.	3,236		8,616
West Fraser Timber Co. Ltd.	54		2,627
Westlake Chemical Corp.	88		5,972
WestRock Co.	198		7,593
Wheaton Precious Metals Corp.	228		5,429
Yara International ASA	205		8,398
Zhaojin Mining Industry Co. Ltd., Class H	3,185		3,189
Total Materials			838,461
Media & Entertainment—1.9%
Alphabet, Inc., Class A2	45		52,960
Altice USA, Inc., Class A3	170		3,652
Charter Communications, Inc., Class A2	50		17,346
China Literature Ltd.1,2,3	400		1,873
Comcast Corp., Class A	938		37,501
CyberAgent, Inc.3	100		4,079
	Shares		Value
Media & Entertainment (Continued)
Fox Corp., Class A2	103	$	3,781
Grupo Televisa SAB, Series CPO	898		1,990
Hakuhodo DY Holdings, Inc	600		9,638
Liberty Global PLC, Class A2,3	281		7,003
Live Nation Entertainment, Inc.2,3	142		9,023
Megacable Holdings SAB de CV	295		1,370
Netflix, Inc.2	20		7,131
News Corp., Class A	571		7,103
Pearson PLC	453		4,936
ProSiebenSat.1 Media SE	228		3,256
Schibsted ASA, Class B	63		2,261
Tencent Holdings Ltd.	445		20,464
Tencent Music Entertainment Group2,3,4	100		1,810
Viacom, Inc., Class B	221		6,203
Walt Disney Co. (The)	358		39,749
Yahoo Japan Corp.	2,300		5,631
Total Media & Entertainment			248,760
Pharmaceuticals, Biotechnology & Life Sciences—2.6%
AbbVie, Inc.	168		13,539
Allergan PLC	49		7,174
Amgen, Inc.	80		15,198
AstraZeneca PLC	147		11,751
Bausch Health Cos., Inc.2	137		3,384
Bayer AG	218		14,099
Bristol-Myers Squibb Co.	210		10,019
Canopy Growth Corp.2	28		1,212
Celgene Corp.2	84		7,925
China Resources Pharmaceutical Group Ltd.1	7,612		10,764
Divi's Laboratories Ltd.	127		3,122
Gilead Sciences, Inc.	194		12,612
GlaxoSmithKline PLC	930		19,351
IQVIA Holdings, Inc.2	52		7,480
Johnson & Johnson	267		37,324
Merck & Co., Inc.	246		20,460
Mylan NV2	211		5,980
Novo Nordisk A/S, Class B	199		10,428
Perrigo Co. PLC3	93		4,479
Pfizer, Inc.	612		25,992
Roche Holding AG	92		25,344
Sanofi	275		24,314
Sartorius Stedim Biotech	34		4,310
Takeda Pharmaceutical Co. Ltd.	303		12,376
Teva Pharmaceutical Industries Ltd.2,4	439		6,883
Thermo Fisher Scientific, Inc.	55		15,055
Total Pharmaceuticals, Biotechnology & Life Sciences			330,575
Real Estate—2.1%
Agile Group Holdings Ltd.	2,366		3,828
Aroundtown SA	388		3,202
Camden Property Trust	109		11,064
CBRE Group, Inc., Class A2	243		12,016
China Evergrande Group3	7,161		23,809
China Jinmao Holdings Group Ltd.	6,321		4,123
China Overseas Land & Investment Ltd.	1,729		6,564
China Resources Land Ltd.	2,293		10,282
Country Garden Holdings Co. Ltd.	11,858		18,520
Daito Trust Construction Co. Ltd.	100		13,940
Daiwa House Industry Co. Ltd.	545		17,327

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Global Revenue ETF

	Shares		Value
Real Estate (Continued)
Emaar Development PJSC	3,305	$	3,491
First Capital Realty, Inc.	452		7,240
Future Land Development Holdings Ltd.	2,000		2,476
Greentown China Holdings Ltd.	5,000		4,994
H&R Real Estate Investment Trust	509		8,919
Jones Lang LaSalle, Inc.	47		7,246
Kaisa Group Holdings Ltd.2	7,000		3,175
Land & Houses PCL	18,131		6,113
Lendlease Group	549		4,828
Longfor Group Holdings Ltd	1,902		6,699
Megaworld Corp.	30,378		3,355
Mirvac Group	1,776		3,469
Mitsui Fudosan Co. Ltd.	400		10,056
Nomura Real Estate Holdings, Inc.	300		5,760
Public Storage	50		10,889
RioCan Real Estate Investment Trust	481		9,530
Robinsons Land Corp.	4,959		2,314
Shenzhen Investment Ltd.	12,000		4,586
Shimao Property Holdings Ltd.	1,731		5,414
Sime Darby Property Bhd	10,300		2,801
Sino-Ocean Group Holding Ltd.	8,282		3,629
SmartCentres Real Estate Investment Trust	323		8,465
Tokyu Fudosan Holdings Corp.	900		5,383
WP Carey, Inc.	147		11,515
Total Real Estate			267,022
Retailing—3.8%
Advance Auto Parts, Inc.	41		6,992
Alibaba Group Holding Ltd.2,4	100		18,245
Amazon.com, Inc.2	49		87,257
B2W Cia Digital2	200		2,170
Best Buy Co., Inc.	318		22,597
Burlington Stores, Inc.2,3	33		5,170
Canadian Tire Corp. Ltd., Class A	79		8,515
CarMax, Inc.2,3	165		11,517
Dollar General Corp.	117		13,958
Dollar Tree, Inc.2	115		12,080
Gap, Inc. (The)	370		9,687
Genuine Parts Co.	134		15,012
GOME Retail Holdings Ltd.2,3	59,222		5,507
GrubHub, Inc.2,3	28		1,945
Hennes & Mauritz AB, Class B	643		10,745
Home Depot, Inc. (The)	237		45,478
Isetan Mitsukoshi Holdings Ltd.	800		8,088
JD.com, Inc.2,3,4	818		24,663
Kingfisher PLC	2,853		8,729
Kohl's Corp.	151		10,384
L Brands, Inc.	212		5,847
Lotte Shopping Co. Ltd.	42		6,586
Lowe's Cos., Inc.	272		29,776
Macy's, Inc.	415		9,972
Magazine Luiza SA	100		4,441
Marks & Spencer Group PLC	2,608		9,478
Meituan Dianping, Class B2	500		3,369
Motus Holdings Ltd.	390		2,213
Nordstrom, Inc.3	180		7,988
Petrobras Distribuidora SA	1,700		10,113
Qurate Retail, Inc.2	291		4,650
Target Corp.	401		32,184
	Shares		Value
Retailing (Continued)
Vipshop Holdings Ltd.2,4	692	$	5,557
Wayfair, Inc., Class A2	20		2,969
Wesfarmers Ltd.	564		13,882
Yamada Denki Co. Ltd.3	2,200		10,852
Zhongsheng Group Holdings Ltd.	3,000		7,445
ZOZO, Inc.3	100		1,885
Total Retailing			497,946
Semiconductors & Semiconductor Equipment—0.9%
Intel Corp.	593		31,844
Micron Technology, Inc.2	356		14,714
NXP Semiconductors NV	108		9,546
QUALCOMM, Inc.	249		14,200
Renesas Electronics Corp.2	1,000		4,626
SK Hynix, Inc.	252		16,473
Taiwan Semiconductor Manufacturing Co. Ltd.	2,943		23,442
Xinyi Solar Holdings Ltd.	6,000		2,889
Total Semiconductors & Semiconductor Equipment			117,734
Software & Services—2.5%
360 Security Technology, Inc., Class A	300		1,153
Accenture PLC, Class A	135		23,763
Adyen NV1,2	2		1,567
Alliance Data Systems Corp.	30		5,249
Atos SE	75		7,242
Automatic Data Processing, Inc.	82		13,099
Cadence Design Systems, Inc.2	96		6,097
CGI, Inc.2	128		8,802
Check Point Software Technologies Ltd.2	44		5,565
Cognizant Technology Solutions Corp., Class A	146		10,578
Computershare Ltd.	249		3,021
Constellation Software, Inc.	4		3,391
DXC Technology Co.	155		9,968
Fortinet, Inc.2	51		4,282
Fujitsu Ltd.	190		13,709
GoDaddy, Inc., Class A2	82		6,165
HCL Technologies Ltd.	301		4,725
Infosys Ltd.	671		7,205
International Business Machines Corp.	227		32,030
Jack Henry & Associates, Inc.	63		8,741
Leidos Holdings, Inc.	124		7,947
Microsoft Corp.	430		50,714
Oracle Corp.	370		19,873
Otsuka Corp.	100		3,736
Palo Alto Networks, Inc.2,3	19		4,615
PTC, Inc.2	43		3,964
Samsung SDS Co. Ltd.	28		5,797
Synopsys, Inc.2	80		9,212
Tableau Software, Inc., Class A2,3	21		2,673
Tata Consultancy Services Ltd.	323		9,333
Tech Mahindra Ltd.	368		4,122
Total System Services, Inc.	107		10,166
Wipro Ltd.	1,365		5,021
Wix.com Ltd.2	21		2,537
Worldpay, Inc., Class A2	43		4,880
Worldpay, Inc., Class A2	21		2,351
Total Software & Services			323,293
Technology Hardware & Equipment—5.1%
Acer, Inc.2	9,000		5,767
Alps Alpine Co. Ltd.	300		6,261

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Global Revenue ETF

	Shares		Value
Technology Hardware & Equipment (Continued)
Apple, Inc.	543	$	103,143
Arista Networks, Inc.2	11		3,459
Arrow Electronics, Inc.2	195		15,027
AU Optronics Corp.	22,645		8,339
Brother Industries Ltd.	300		5,551
BYD Electronic International Co. Ltd.	2,387		3,077
CDW Corp.	126		12,143
Compal Electronics, Inc.	35,430		22,014
F5 Networks, Inc.2	46		7,219
Flex Ltd.2	1,140		11,400
Foxconn Industrial Internet Co., Ltd., Class A2	1,200		2,634
FUJIFILM Holdings Corp.	300		13,644
Hewlett Packard Enterprise Co.	835		12,884
Hitachi High-Technologies Corp.	100		4,097
Hitachi Ltd.	1,020		33,037
Hon Hai Precision Industry Co. Ltd.	27,693		66,042
HP, Inc.	1,098		21,334
Innolux Corp.	26,000		8,436
Inventec Corp.	15,000		11,413
Konica Minolta, Inc.	700		6,887
Legend Holdings Corp., Class H1	3,600		9,562
Lenovo Group Ltd.	23,027		20,710
LG Display Co. Ltd.2	587		10,084
LG Innotek Co. Ltd.	49		5,072
NEC Corp.	400		13,534
Nokia OYJ	2,409		13,725
Pegatron Corp.	10,702		18,508
Quanta Computer, Inc.	10,317		19,348
Ricoh Co. Ltd.	855		8,937
Samsung Electronics Co. Ltd.	1,931		75,957
Seagate Technology PLC3	142		6,800
Seiko Epson Corp.	500		7,657
TDK Corp.	100		7,833
Telefonaktiebolaget LM Ericsson, Class B3	1,369		12,608
Venture Corp. Ltd.	300		3,973
Western Digital Corp.	183		8,795
Wistron Corp.	23,956		18,421
Xerox Corp.	168		5,373
Xiaomi Corp., Class B1,2,3	4,800		6,959
Total Technology Hardware & Equipment			657,664
Telecommunication Services—4.2%
America Movil SAB de CV, Series L	18,071		12,931
AT&T, Inc.	2,199		68,961
Bharti Airtel Ltd.	1,474		7,088
BT Group PLC	4,692		13,631
CenturyLink, Inc.3	703		8,429
China Communications Services Corp. Ltd., Class H	3,907		3,484
China Mobile Ltd.	3,712		37,830
China Tower Corp. Ltd., Class H1,2	7,999		1,855
China Unicom Hong Kong Ltd.	15,527		19,681
Chunghwa Telecom Co. Ltd.	4,087		14,520
Deutsche Telekom AG	2,451		40,717
Empresa Nacional de Telecomunicaciones SA	292		3,041
KDDI Corp.3	900		19,393
KT Corp.4	970		12,067
Mobile TeleSystems PJSC4	726		5,489
Nippon Telegraph & Telephone Corp.	1,000		42,490
	Shares		Value
Telecommunication Services (Continued)
Orange SA	1,820	$	29,632
SK Telecom Co. Ltd.	48		10,635
Softbank Corp.3	1,200		13,519
SoftBank Group Corp.	300		29,123
Sprint Corp.2	2,170		12,260
Telecom Italia SpA2,3	14,937		9,298
Telefonica SA	2,865		24,028
Telstra Corp. Ltd.	4,009		9,455
T-Mobile US, Inc.2	274		18,933
Verizon Communications, Inc.	942		55,700
Vodafone Group PLC	11,893		21,665
Vodafone Idea Ltd2	5,988		1,577
Total Telecommunication Services			547,432
Transportation—2.7%
A.P. Moeller - Maersk A/S, Class B	11		13,967
American Airlines Group, Inc.	525		16,674
Bollore SA	3,759		17,001
C.H. Robinson Worldwide, Inc.	151		13,136
CAR, Inc.2	3,000		2,587
China Eastern Airlines Corp. Ltd., Class H	6,000		4,257
COSCO SHIPPING Energy Transportation Co. Ltd., Class H	4,000		2,293
COSCO SHIPPING Holdings Co. Ltd., Class H2	10,500		4,361
Delta Air Lines, Inc.	429		22,158
Deutsche Lufthansa AG	686		15,070
Deutsche Post AG	1,047		34,093
DSV A/S	111		9,189
FedEx Corp.	160		29,026
Hyundai Glovis Co. Ltd.	62		7,019
Imperial Logistics Ltd.	991		4,114
International Consolidated Airlines Group SA2	1,613		10,744
Knight-Swift Transportation Holdings, Inc.3	129		4,216
Latam Airlines Group SA	468		4,976
Mitsui OSK Lines Ltd.	300		6,453
Nippon Express Co. Ltd.	200		11,131
Nippon Yusen KK	700		10,258
Royal Mail PLC	1,819		5,648
Ryanair Holdings PLC2,4	104		7,794
SF Holding Co. Ltd., Class A	700		3,815
SG Holdings Co. Ltd.	200		5,827
Sinotrans Ltd., Class H	9,000		3,864
Southwest Airlines Co.	202		10,486
Transurban Group	908		8,514
United Continental Holdings, Inc.2	195		15,557
United Parcel Service, Inc., Class B	226		25,253
XPO Logistics, Inc.2,3	156		8,383
Yamato Holdings Co. Ltd.	300		7,749
ZTO Express Cayman, Inc.3,4	100		1,828
Total Transportation			347,441
Utilities—4.2%
AGL Energy Ltd.	460		7,114
Aguas Andinas SA, Class A	8,323		4,732
Centrica PLC	9,570		14,241
China Power International Development Ltd.	18,999		4,865
China Resources Gas Group Ltd.	1,204		5,675
Colbun SA	13,400		3,029
Datang International Power Generation Co. Ltd., Class H	15,999		4,280
E.ON SE	1,890		21,035

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Global Revenue ETF

	Shares		Value
Utilities (Continued)
EDP - Energias de Portugal SA	4,266	$	16,789
Electricite de France SA	2,049		28,046
Endesa SA	733		18,716
Enel Americas SA	24,355		4,330
Enel Chile SA	35,382		3,707
Enel SpA	6,325		40,510
Engie SA	2,279		33,983
ENN Energy Holdings Ltd.	527		5,096
Exelon Corp.	571		28,624
FirstEnergy Corp.	340		14,147
Fortum OYJ3	373		7,635
GAIL India Ltd.	1,551		7,784
Gulf Energy Development PCL	1,500		4,514
Huadian Power International Corp. Ltd., Class H	6,000		2,469
Innogy SE1	441		20,411
Kansai Electric Power Co., Inc. (The)	1,000		14,745
Korea Electric Power Corp.2	741		19,519
Korea Gas Corp.	235		9,337
Manila Electric Co.	973		7,041
Naturgy Energy Group SA3	645		18,055
NRG Energy, Inc.	144		6,117
Orsted A/S1	125		9,483
PG&E Corp.2	34		605
PGE Polska Grupa Energetyczna SA2	1,184		3,070
Power Grid Corp. of India Ltd.	2,471		7,059
RWE AG	700		18,785
SSE PLC	1,145		17,710
Tohoku Electric Power Co., Inc.	900		11,481
Tokyo Electric Power Co. Holdings, Inc.2	3,400		21,502
Tokyo Gas Co. Ltd.	452		12,224
Uniper SE	1,143		34,511
Veolia Environnement SA	995		22,267
Verbund AG	76		3,651
Vistra Energy Corp.	260		6,768
Total Utilities			545,662
Total Common Stocks
(Cost $12,714,487)			12,727,716
PREFERRED STOCKS—0.9%
Automobiles & Components—0.7%
Volkswagen AG, 2.75%	547		86,184
Banks—0.1%
Grupo Aval Acciones y Valores SA, 3.97%	30,376		11,777
Capital Goods—0.0%5
Rolls-Royce Holdings PLC, Class C2,6	148,849		194
CJ Corp.2,6	16		381
Total Capital Goods			575
Technology Hardware & Equipment—0.1%
Samsung Electronics Co. Ltd., 2.92%	242		7,728
Utilities—0.0%5
Centrais Eletricas Brasileiras SA, Class B2	512		4,981
Total Preferred Stocks
(Cost $112,076)			111,245
RIGHT—0.0%5
Telecommunication Services—0.0%5
Vodafone Idea Ltd., expiring 4/29/19 (Cost $1,471)2	13,709		1,242
	Shares		Value
Money Market Fund—0.1%
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%7
(Cost $13,688)	13,688	$	13,688
Investment of Cash Collateral for Securities Loaned—1.1%
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%7
(Cost $146,488)	146,488		146,488
Total Investments—100.7% (Cost $12,988,210)			13,000,379
Liabilities in Excess of Other Assets—(0.7)%			(98,473	)
Net Assets—100.0%		$	12,901,906

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Global Revenue ETF

LP	-	Limited Partnership
PCL	-	Public Company Limited
PLC	-	Public Limited Company

1.	Represents securities sold under Rule 144A, which are exempt from registration under the Securities Act of 1933, as amended. These securities have been determined to be liquid under guidelines established by the Board of Trustees. These securities amount to $129,137 or 1.00% of the Fund’s net assets at period end.
2.	Non-income producing security.
3.	All or a portion of the security was on loan. The aggregate value of the securities on loan was $419,618; total value of the collateral held by the Fund was $433,260. The total value of the collateral includes non-cash U.S. Treasury securities collateral having a value of $286,772.
4.	American Depositary Receipt.
5.	Less than 0.05%
6.	The value of this security was determined using significant unobservable inputs. See Note 2 of the accompanying Notes.
7.	Rate shown represents annualized 7-day yield as of March 31, 2019.

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Global Revenue ETF

Geographical Holdings
Country		Value		% of Net Assets
United States	$	4,440,912		34.4	%
Japan		1,817,063		14.1
China		774,790		6.0
Germany		696,993		5.4
France		656,373		5.1
United Kingdom		629,648		4.9
South Korea		539,813		4.2
Canada		354,968		2.8
Netherlands		296,232		2.3
India		295,353		2.3
Switzerland		277,465		2.1
Taiwan		276,862		2.1
Russia		205,728		1.6
Spain		190,189		1.5
Australia		177,608		1.4
Brazil		157,965		1.2
Italy		146,914		1.1
Hong Kong		130,226		1.0
Thailand		87,250		0.7
Sweden		80,010		0.6
Mexico		73,954		0.6
South Africa		61,660		0.5
Denmark		56,882		0.4
Norway		51,586		0.4
Singapore		49,458		0.4
Chile		42,211		0.3
Malaysia		37,886		0.3
Belgium		35,665		0.3
Poland		34,682		0.3
Turkey		33,225		0.3
Indonesia		32,436		0.3
Luxembourg		31,994		0.2
Finland		31,387		0.2
Austria		31,259		0.2
Philippines		28,809		0.2
Ireland		20,575		0.2
Portugal		16,789		0.1
Israel		14,986		0.1
United Arab Emirates		14,865		0.1
Colombia		11,777		0.1
Qatar		11,336		0.1
Hungary		9,281		0.1
Peru		9,206		0.1
Geographical Holdings
Country		Value		% of Net Assets
Czech Republic	$	6,751		0.1	%
New Zealand		6,349		0.0	1
Macau		4,283		0.0	1
Egypt		3,276		0.0	1
Pakistan		3,010		0.0	1
Bermuda		2,439		0.0	1
Total Investments		13,000,379		100.7
Liabilities in Excess of Other Assets		(98,473	)	(0.7	)
Net Assets	$	12,901,906		100.0	%

1. Less than 0.05%

Schedule of Investments March 31, 2019 Unaudited

Oppenheimer ESG Revenue ETF

	Shares		Value
COMMON STOCKS—99.8%
Automobiles & Components—3.0%
Aptiv PLC		782	$	62,161
BorgWarner, Inc.		1,229		47,206
Ford Motor Co.		83,750		735,325
Total Automobiles & Components				844,692
Banks—2.0%
Bank of America Corp.		16,456		454,021
KeyCorp		1,849		29,122
PNC Financial Services Group, Inc. (The)		668		81,937
Total Banks				565,080
Capital Goods—8.2%
3M Co.		694		144,199
Cummins, Inc.		665		104,984
Deere & Co.		1,071		171,189
Eaton Corp. PLC		1,172		94,416
Emerson Electric Co.		1,155		79,083
Flowserve Corp.		379		17,108
Fluor Corp.		2,241		82,469
General Electric Co.		51,878		518,261
Illinois Tool Works, Inc.		448		64,301
Ingersoll-Rand PLC		650		70,167
Johnson Controls International PLC		3,591		132,652
Lockheed Martin Corp.		791		237,427
Masco Corp.		944		37,109
Northrop Grumman Corp.		481		129,678
Parker-Hannifin Corp.		375		64,357
Pentair PLC		362		16,113
Raytheon Co.		660		120,173
Rockwell Automation, Inc.		163		28,600
Stanley Black & Decker, Inc.		465		63,319
United Rentals, Inc.1		290		33,132
W.W. Grainger, Inc.		166		49,954
Xylem, Inc.		299		23,633
Total Capital Goods				2,282,324
Commercial & Professional Services—0.4%
IHS Markit Ltd.1		325		17,673
Nielsen Holdings PLC		1,048		24,806
Verisk Analytics, Inc.		82		10,906
Waste Management, Inc.		648		67,334
Total Commercial & Professional Services				120,719
Consumer Durables & Apparel—1.3%
Garmin Ltd.		177		15,284
Hanesbrands, Inc.		1,684		30,110
Hasbro, Inc.2		232		19,725
Mattel, Inc.1,2		1,371		17,823
NIKE, Inc., Class B		1,925		162,104
PVH Corp.		377		45,975
VF Corp.		704		61,185
Total Consumer Durables & Apparel				352,206
Consumer Services—1.3%
Carnival Corp.		1,470		74,558
Hilton Worldwide Holdings, Inc.		460		38,231
Marriott International, Inc., Class A		754		94,318
Royal Caribbean Cruises Ltd.		358		41,034
Starbucks Corp.		1,570		116,714
Total Consumer Services				364,855
Diversified Financials—2.0%
Bank of New York Mellon Corp. (The)		1,599		80,638
BlackRock, Inc.		144		61,541
Franklin Resources, Inc.		809		26,810
		Shares		Value
Diversified Financials (Continued)
Invesco Ltd.		1,188	$	22,940
Moody's Corp.		112		20,282
Morgan Stanley		5,145		217,119
MSCI, Inc.		34		6,760
Northern Trust Corp.		309		27,937
S&P Global, Inc.		136		28,635
State Street Corp.		781		51,398
T. Rowe Price Group, Inc.		234		23,428
Total Diversified Financials				567,488
Energy—9.6%
Apache Corp.		941		32,615
Baker Hughes a GE Co.2		3,627		100,540
ConocoPhillips		2,384		159,108
Devon Energy Corp.		1,748		55,167
EOG Resources, Inc.		846		80,522
Exxon Mobil Corp.		15,251		1,232,281
Halliburton Co.		3,703		108,498
Hess Corp.		484		29,151
HollyFrontier Corp.		1,493		73,560
Marathon Oil Corp.		1,502		25,098
Marathon Petroleum Corp.		7,016		419,908
Noble Energy, Inc.2		864		21,367
Occidental Petroleum Corp.		1,188		78,646
ONEOK, Inc.		832		58,107
Schlumberger Ltd.		3,346		145,785
TechnipFMC PLC		2,400		56,448
Total Energy				2,676,801
Food & Staples Retailing—5.0%
Kroger Co. (The)		22,031		541,963
Sysco Corp.		3,953		263,902
Walgreens Boots Alliance, Inc.		9,449		597,838
Total Food & Staples Retailing				1,403,703
Food, Beverage & Tobacco—4.0%
Altria Group, Inc.		1,525		87,581
Brown-Forman Corp., Class B2		288		15,201
Campbell Soup Co.		1,202		45,832
Coca-Cola Co. (The)		3,047		142,783
General Mills, Inc.		1,507		77,987
Hershey Co. (The)		310		35,597
JM Smucker Co. (The)2		327		38,096
Kellogg Co.		1,106		63,462
McCormick & Co., Inc.		170		25,607
Molson Coors Brewing Co., Class B		782		46,646
Mondelez International, Inc., Class A		2,400		119,808
PepsiCo, Inc.		2,455		300,860
Philip Morris International, Inc.		1,442		127,458
Total Food, Beverage & Tobacco				1,126,918
Health Care Equipment & Services—12.0%
Abbott Laboratories		1,697		135,658
Anthem, Inc.		1,325		380,248
Baxter International, Inc.		639		51,957
Becton Dickinson and Co.		297		74,170
Boston Scientific Corp.1		1,078		41,374
Cardinal Health, Inc.		12,276		591,089
Covetrus, Inc.1		1		32
CVS Health Corp.		15,261		823,026
Edwards Lifesciences Corp.1		92		17,602
Henry Schein, Inc.1,2		981		58,968
Medtronic PLC		1,438		130,973

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer ESG Revenue ETF

	Shares		Value
Health Care Equipment & Services (Continued)
ResMed, Inc.	107	$	11,125
UnitedHealth Group, Inc.	3,925		970,496
Varian Medical Systems, Inc.1	96		13,605
Zimmer Biomet Holdings, Inc.	284		36,267
Total Health Care Equipment & Services			3,336,590
Household & Personal Products—2.0%
Church & Dwight Co., Inc.	267		19,019
Clorox Co. (The)	168		26,957
Colgate-Palmolive Co.	1,023		70,117
Estee Lauder Cos., Inc., (The), Class A	385		63,737
Kimberly-Clark Corp.	686		84,995
Procter & Gamble Co. (The)	2,866		298,207
Total Household & Personal Products			563,032
Insurance—3.5%
Allstate Corp. (The)	1,814		170,843
Hartford Financial Services Group, Inc. (The)	1,688		83,927
Lincoln National Corp.	1,153		67,681
Marsh & McLennan Cos., Inc.	708		66,481
MetLife, Inc.	6,547		278,706
Principal Financial Group, Inc.2	1,212		60,830
Prudential Financial, Inc.	2,826		259,653
Total Insurance			988,121
Materials—2.5%
Air Products & Chemicals, Inc.	212		40,483
Albemarle Corp.2	175		14,346
Avery Dennison Corp.	286		32,318
Ball Corp.	892		51,611
Eastman Chemical Co.	559		42,417
Ecolab, Inc.	371		65,496
FMC Corp.	269		20,665
International Flavors & Fragrances, Inc.	140		18,031
International Paper Co.	2,181		100,915
LyondellBasell Industries NV, Class A	1,960		164,797
Newmont Mining Corp.	955		34,160
Packaging Corp. of America	312		31,007
PPG Industries, Inc.	616		69,528
Total Materials			685,774
Media & Entertainment—2.7%
Comcast Corp., Class A	10,276		410,835
Interpublic Group of Cos., Inc. (The)	1,904		40,003
Viacom, Inc., Class B	1,997		56,056
Walt Disney Co. (The)	2,278		252,926
Total Media & Entertainment			759,820
Pharmaceuticals, Biotechnology & Life Sciences—3.8%
AbbVie, Inc.	1,772		142,806
Agilent Technologies, Inc.	272		21,863
Allergan PLC	463		67,788
Amgen, Inc.	547		103,919
Biogen, Inc.1	161		38,057
Bristol-Myers Squibb Co.	1,987		94,800
Gilead Sciences, Inc.	1,495		97,190
Illumina, Inc.1	47		14,602
Merck & Co., Inc.	2,276		189,295
Mettler-Toledo International, Inc.1	18		13,014
Pfizer, Inc.	5,655		240,168
Regeneron Pharmaceuticals, Inc.1	71		29,154
Total Pharmaceuticals, Biotechnology & Life Sciences			1,052,656
Real Estate—1.2%
AvalonBay Communities, Inc.	50		10,037
	Shares		Value
Real Estate (Continued)
Boston Properties, Inc.	88	$	11,781
CBRE Group, Inc., Class A1	1,871		92,521
Equinix, Inc.	51		23,111
HCP, Inc.	259		8,107
Host Hotels & Resorts, Inc.	1,263		23,871
Iron Mountain, Inc.2	534		18,936
Kimco Realty Corp.	286		5,291
Prologis, Inc.	172		12,375
Simon Property Group, Inc.	138		25,145
SL Green Realty Corp.	70		6,294
Ventas, Inc.	259		16,527
Vornado Realty Trust	152		10,251
Welltower, Inc.	265		20,564
Weyerhaeuser Co.	1,286		33,873
Total Real Estate			318,684
Retailing—6.0%
Best Buy Co., Inc.	2,725		193,638
eBay, Inc.	1,300		48,282
Gap, Inc. (The)	2,855		74,744
Home Depot, Inc. (The)	2,618		502,368
Kohl's Corp.	1,295		89,057
L Brands, Inc.	2,217		61,145
Lowe's Cos., Inc.	3,108		340,233
Macy's, Inc.	4,786		115,008
Nordstrom, Inc.2	1,567		69,543
TJX Cos., Inc. (The)	3,287		174,901
Total Retailing			1,668,919
Semiconductors & Semiconductor Equipment—3.3%
Advanced Micro Devices, Inc.1,2	1,239		31,619
Analog Devices, Inc.	243		25,581
Applied Materials, Inc.	1,844		73,133
Broadcom, Inc.	312		93,821
Intel Corp.	5,709		306,573
KLA-Tencor Corp.	158		18,867
Lam Research Corp.	262		46,901
Maxim Integrated Products, Inc.	204		10,847
Microchip Technology, Inc.	261		21,652
Micron Technology, Inc.1	3,511		145,110
NVIDIA Corp.	307		55,125
Skyworks Solutions, Inc.	202		16,661
Texas Instruments, Inc.	619		65,657
Xilinx, Inc.	102		12,933
Total Semiconductors & Semiconductor Equipment			924,480
Software & Services—6.3%
Accenture PLC, Class A	1,119		196,966
Adobe, Inc.1	147		39,174
Akamai Technologies, Inc.1	164		11,760
Autodesk, Inc.1	74		11,531
Cognizant Technology Solutions Corp., Class A	999		72,377
DXC Technology Co.	1,464		94,150
International Business Machines Corp.	2,512		354,443
Intuit, Inc.	109		28,494
Microsoft Corp.	4,480		528,371
Oracle Corp.	3,294		176,921
PayPal Holdings, Inc.1	684		71,027
salesforce.com, Inc.1	343		54,321
Symantec Corp.	913		20,990

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer ESG Revenue ETF

	Shares		Value
Software & Services (Continued)
Visa, Inc., Class A	606	$	94,651
Total Software & Services			1,755,176
Technology Hardware & Equipment—7.8%
Apple, Inc.	6,168		1,171,612
Cisco Systems, Inc.	4,209		227,244
Corning, Inc.	1,450		47,995
Hewlett Packard Enterprise Co.	8,448		130,353
HP, Inc.	12,946		251,541
Juniper Networks, Inc.	765		20,249
Keysight Technologies, Inc.1	208		18,138
Motorola Solutions, Inc.	230		32,297
NetApp, Inc.	403		27,944
Seagate Technology PLC2	1,055		50,524
TE Connectivity Ltd.	758		61,208
Western Digital Corp.	1,791		86,075
Xerox Corp.	1,389		44,420
Total Technology Hardware & Equipment			2,169,600
Telecommunication Services—4.8%
AT&T, Inc.	24,467		767,285
Verizon Communications, Inc.	9,832		581,366
Total Telecommunication Services			1,348,651
Transportation—3.1%
Alaska Air Group, Inc.2	654		36,702
Delta Air Lines, Inc.	3,821		197,355
FedEx Corp.	1,686		305,857
United Parcel Service, Inc., Class B	2,850		318,459
Total Transportation			858,373
Utilities—4.0%
AES Corp.	2,596		46,936
Alliant Energy Corp.	328		15,459
Ameren Corp.	377		27,728
American Electric Power Co., Inc.	841		70,434
American Water Works Co., Inc.	144		15,013
CMS Energy Corp.	548		30,436
Consolidated Edison, Inc.	638		54,109
Dominion Energy, Inc.	769		58,951
DTE Energy Co.	501		62,495
Duke Energy Corp.	1,183		106,470
Edison International	868		53,747
Entergy Corp.	512		48,963
Eversource Energy	515		36,539
Exelon Corp.	3,208		160,817
NextEra Energy, Inc.	369		71,335
NiSource, Inc.2	806		23,100
NRG Energy, Inc.	1,054		44,774
Pinnacle West Capital Corp.	164		15,675
PPL Corp.	1,050		33,327
Public Service Enterprise Group, Inc.	728		43,250
WEC Energy Group, Inc.	419		33,134
Xcel Energy, Inc.	889		49,971
Total Utilities			1,102,663
Total Common Stocks
(Cost $25,257,534)			27,837,325
Money Market Fund—0.1%
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%3
(Cost $41,383)	41,383		41,383
	Shares		Value
Investment of Cash Collateral for Securities Loaned—0.0%4
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%3
(Cost $505)	505	$	505
Total Investments—99.9% (Cost $25,299,422)			27,879,213
Other Assets in Excess of Liabilities—0.1%			28,233
Net Assets—100.0%		$	27,907,446

PLC - Public Limited Company

1	Non-income producing security.
2	All or a portion of the security was on loan. The aggregate value of the securities on loan was $539,654; total value of the collateral held by the Fund was $551,011. The total value of the collateral includes non-cash U.S. Treasury securities collateral having a value of $550,506.
3	Rate shown represents annualized 7-day yield as of March 31, 2019.
4	Less than 0.05%

Schedule of Investments March 31, 2019 Unaudited

Oppenheimer Global ESG Revenue ETF

	Shares		Value
COMMON STOCKS—98.9%
Automobiles & Components—4.2%
Astra International Tbk PT		33,563	$	17,265
Bayerische Motoren Werke AG		1,471		113,555
BYD Co. Ltd., Class H		1,019		6,140
Cie Generale des Etablissements Michelin		242		28,640
Daimler AG		3,753		220,184
Denso Corp.		1,339		52,224
Eicher Motors Ltd.		6		1,780
Garrett Motion, Inc.1		1		15
Geely Automobile Holdings Ltd.		10,310		19,701
Hankook Tire Co. Ltd.		189		6,236
Harley-Davidson, Inc.2		177		6,312
Hero MotoCorp Ltd.		145		5,344
Honda Motor Co. Ltd.		6,172		167,007
Magna International, Inc.		857		41,742
Mahindra & Mahindra Ltd.		1,798		17,491
NGK Spark Plug Co. Ltd.2		167		3,099
Nokian Renkaat OYJ		62		2,077
Peugeot SA		4,072		99,401
Pirelli & C SpA1,3		1,008		6,494
Renault SA		1,184		78,318
Stanley Electric Co. Ltd.		152		4,085
Sumitomo Rubber Industries Ltd.		771		9,250
Tesla, Inc.1,2		65		18,191
Valeo SA		827		24,004
Yamaha Motor Co. Ltd.		841		16,496
Total Automobiles & Components				965,051
Banks—7.6%
ABN AMRO Group NV3		909		20,515
Absa Group Ltd.		895		9,440
Abu Dhabi Commercial Bank PJSC		1,717		4,431
AIB Group PLC		935		4,202
AMMB Holdings Bhd		1,934		2,160
Australia & New Zealand Banking Group Ltd.		1,579		29,196
Axis Bank Ltd.1		961		10,782
Banco Bilbao Vizcaya Argentaria SA2		8,912		50,965
Banco Bradesco SA		3,194		31,064
Banco de Credito e Inversiones		63		4,028
Banco de Sabadell SA		8,562		8,535
Banco do Brasil SA		3,898		48,799
Banco Santander Brasil SA		2,029		22,924
Banco Santander Chile		61,245		4,607
Banco Santander Mexico SA Institucion de Banca Multiple Grupo Financiero Santand		2,777		3,798
Banco Santander SA		25,180		117,179
Bancolombia SA		384		4,774
Bank Central Asia Tbk PT		3,019		5,883
Bank Danamon Indonesia Tbk PT1		3,015		1,969
Bank Handlowy w Warszawie SA		44		775
Bank Hapoalim B.M.		769		5,092
Bank Leumi Le-Israel B.M.		761		4,972
Bank Mandiri Persero Tbk PT1		18,674		9,770
Bank Millennium SA1		480		1,119
Bank Negara Indonesia Persero Tbk PT1		8,748		5,775
Bank of Montreal		371		27,768
Bank of Nova Scotia (The)		602		32,057
Bank of the Philippine Islands		1,231		1,974
Bank Polska Kasa Opieki SA		95		2,726
Bank Rakyat Indonesia Persero Tbk PT		37,210		10,766
Bankinter SA		455		3,469
Bendigo & Adelaide Bank Ltd.		353		2,427
BNK Financial Group, Inc.		629		3,702
BNP Paribas SA		1,987		95,067
BOC Hong Kong Holdings Ltd.		3,613		14,958
CaixaBank SA		4,706		14,711
		Shares		Value
Banks (Continued)
Canadian Imperial Bank of Commerce		255	$	20,156
China CITIC Bank Corp Ltd., Class H		23,902		15,224
China Everbright Bank Co. Ltd., Class H		18,556		8,770
China Merchants Bank Co. Ltd., Class H		2,705		13,146
CIMB Group Holdings Bhd		5,391		6,801
Comerica, Inc.		49		3,593
Commercial Bank PQSC (The)		199		2,457
Commercial International Bank Egypt SAE		600		2,360
Commerzbank AG1		1,949		15,100
Commonwealth Bank of Australia		689		34,573
Concordia Financial Group Ltd.		864		3,333
Credicorp Ltd.		26		6,239
Credit Agricole SA		7,881		95,306
DBS Group Holdings Ltd.		830		15,460
DGB Financial Group, Inc.		394		2,836
DNB ASA		510		9,405
Dubai Islamic Bank PJSC		2,451		3,270
E.Sun Financial Holding Co. Ltd.		3,018		2,326
Erste Group Bank AG1		357		13,132
First Abu Dhabi Bank PJSC		2,161		8,978
Grupo Financiero Banorte SAB de CV, Class O		2,026		11,023
Hana Financial Group, Inc.		427		13,693
Hang Seng Bank Ltd.		265		6,539
Housing Development Finance Corp. Ltd.		354		10,058
Indiabulls Housing Finance Ltd.		278		3,444
ING Groep NV		4,294		51,995
Intesa Sanpaolo SpA		12,522		30,525
Kasikornbank PCL		3,192		18,859
KB Financial Group, Inc.		791		29,163
KBC Group NV		224		15,665
KeyCorp		487		7,670
Komercni banka as		54		2,207
Krung Thai Bank PCL		32		19
Malayan Banking Bhd		4,079		9,262
mBank SA		16		1,775
MCB Bank Ltd.		552		771
Mega Financial Holding Co. Ltd.		4,116		3,746
Mizrahi Tefahot Bank Ltd.		143		2,939
Mizuho Financial Group, Inc.		24,111		37,315
National Australia Bank Ltd.		1,627		29,206
National Bank of Canada		192		8,668
Nedbank Group Ltd.		433		7,544
Nordea Bank Abp2		1,756		13,394
OTP Bank Nyrt		116		5,103
Oversea-Chinese Banking Corp. Ltd.		2,862		23,348
People's United Financial, Inc.2		3		49
PNC Financial Services Group, Inc. (The)		176		21,588
Public Bank Bhd		930		5,276
Qatar National Bank QPSC		364		18,046
Raiffeisen Bank International AG		378		8,493
Regions Financial Corp.		463		6,551
Resona Holdings, Inc.		1,693		7,337
RHB Bank Bhd		2,204		3,077
Royal Bank of Canada		645		48,676
Santander Bank Polska SA		30		2,981
Shinhan Financial Group Co. Ltd.		611		22,608
Siam Commercial Bank PCL (The)		1,974		8,211
Skandinaviska Enskilda Banken AB, Class A2		817		7,089
Societe Generale SA		2,518		72,875
Standard Bank Group Ltd.2		1,541		19,793
Standard Chartered PLC		3,060		23,577
Sumitomo Mitsui Financial Group, Inc.		1,700		59,531
Sumitomo Mitsui Trust Holdings, Inc.		360		12,932
SVB Financial Group1		12		2,668
Svenska Handelsbanken AB, Class A2		677		7,160

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Global ESG Revenue ETF

	Shares		Value
Banks (Continued)
Swedbank AB, Class A2	318	$	4,503
Taishin Financial Holding Co. Ltd.	4,603		2,098
Taiwan Business Bank	3,192		1,243
TMB Bank PCL	31,628		2,033
Toronto-Dominion Bank (The)	791		42,938
UniCredit SpA	2,569		32,965
United Overseas Bank Ltd.	610		11,344
Westpac Banking Corp.	1,689		31,098
Yamaguchi Financial Group, Inc.	200		1,695
Yes Bank Ltd.	1,369		5,437
Zions Bancorp NA	68		3,088
Total Banks			1,745,735
Capital Goods—11.5%
3M Co.	177		36,777
ABB Ltd.	2,089		39,246
ACS Actividades de Construccion y Servicios SA	1,129		49,643
Acuity Brands, Inc.	33		3,960
Airbus SE	666		88,168
Alfa Laval AB	230		5,292
Allegion PLC	34		3,084
Alstom SA	252		10,928
Amada Holdings Co. Ltd.	358		3,542
ANDRITZ AG	159		6,827
Arconic, Inc.	895		17,103
Ashtead Group PLC	233		5,624
Assa Abloy AB, Class B	473		10,235
Atlas Copco AB, Class A	327		8,801
Atlas Copco AB, Class B	161		3,994
BAE Systems PLC	3,856		24,238
Bidvest Group Ltd. (The)	473		6,347
BOC Aviation Ltd.3	184		1,501
Boeing Co. (The)	263		100,313
Bouygues SA	1,263		45,168
Brenntag AG	327		16,853
Bunzl PLC	416		13,725
CAE, Inc.	123		2,726
Caterpillar, Inc.	443		60,022
Cie de Saint-Gobain	1,466		53,185
CNH Industrial NV1	3,075		31,296
Cummins, Inc.	169		26,680
Daifuku Co. Ltd.	100		5,204
Daikin Industries Ltd.	201		23,553
DCC PLC	271		23,430
Deere & Co.	266		42,517
Eaton Corp. PLC	307		24,732
Eiffage SA	222		21,353
Elbit Systems Ltd.	30		3,873
Epiroc AB, Class A1	317		3,208
Epiroc AB, Class B1	161		1,545
Far Eastern New Century Corp.	8,402		8,301
Fastenal Co.2	90		5,788
Ferguson PLC	317		20,174
Ferrovial SA	700		16,412
Finning International, Inc.	301		5,353
Flowserve Corp.	93		4,198
Fluor Corp.	608		22,374
Fortune Brands Home & Security, Inc.	128		6,094
Fuji Electric Co. Ltd.	326		9,248
GEA Group AG	262		6,869
Geberit AG	9		3,678
General Electric Co.	13,288		132,747
HAP Seng Consolidated Bhd	727		1,763
Harris Corp.	44		7,027
HD Supply Holdings, Inc.1	152		6,589
	Shares		Value
Capital Goods (Continued)
Hino Motors Ltd.	2,177	$	18,331
Hitachi Construction Machinery Co. Ltd.	388		10,296
Hiwin Technologies Corp.	3		25
HOCHTIEF AG	222		32,156
Honeywell International, Inc.	317		50,378
Huntington Ingalls Industries, Inc.	41		8,495
IHI Corp.	558		13,405
Ingersoll-Rand PLC	161		17,380
ITOCHU Corp.2	5,100		92,269
Jacobs Engineering Group, Inc.	256		19,249
Johnson Controls International PLC	1,016		37,531
Kajima Corp.	1,391		20,535
Kawasaki Heavy Industries Ltd.	602		14,848
Keihan Holdings Co. Ltd.	65		2,734
Keppel Corp. Ltd.	1,081		4,964
Kingspan Group PLC	119		5,513
KION Group AG	164		8,579
KOC Holding AS	8,804		25,074
Komatsu Ltd.	1,120		26,010
Kone OYJ, Class B	210		10,602
Kubota Corp.	1,405		20,304
Kurita Water Industries Ltd.	100		2,554
L3 Technologies, Inc.	48		9,906
Legrand SA	121		8,106
Lennox International, Inc.	18		4,759
LG Corp.	156		10,651
LIXIL Group Corp.	1,400		18,694
Lockheed Martin Corp.	201		60,332
Masco Corp.	250		9,828
Meggitt PLC	423		2,771
Metso OYJ1	121		4,166
Middleby Corp. (The)1,2	24		3,121
Mitsubishi Electric Corp.	3,605		46,331
Mitsubishi Heavy Industries Ltd.	1,114		46,277
MTU Aero Engines AG	27		6,118
Nabtesco Corp.	104		3,030
NGK Insulators Ltd.	375		5,448
Northrop Grumman Corp.	113		30,465
NSK Ltd.	1,235		11,571
Obayashi Corp.	2,161		21,750
OSRAM Licht AG	127		4,375
Owens Corning	145		6,832
Parker-Hannifin Corp.	95		16,304
Raytheon Co.	162		29,497
Rexel SA	1,387		15,660
Rockwell Automation, Inc.	42		7,369
Rolls-Royce Holdings PLC1	1,951		22,962
Roper Technologies, Inc.	19		6,497
Safran SA	172		23,610
Sandvik AB	779		12,682
Schneider Electric SE	454		35,654
Sembcorp Industries Ltd.	5,043		9,494
Shimizu Corp.	1,926		16,740
Siemens AG	1,062		114,405
Sime Darby Bhd	17,587		9,607
Singapore Technologies Engineering Ltd.	2,098		5,793
SK Holdings Co. Ltd.	524		124,872
Skanska AB, Class B2	1,170		21,305
SKF AB, Class B2	581		9,672
Smiths Group PLC	252		4,712
Snap-on, Inc.2	30		4,696
SNC-Lavalin Group, Inc.	354		8,985
Spirit AeroSystems Holdings, Inc., Class A	83		7,597
Taisei Corp.	395		18,343

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Global ESG Revenue ETF

	Shares		Value
Capital Goods (Continued)
Thales SA	173	$	20,737
THK Co. Ltd.	154		3,804
TOTO Ltd.2	147		6,235
United Rentals, Inc.1	64		7,312
United Technologies Corp.	621		80,041
Vestas Wind Systems A/S	159		13,392
Vinci SA	648		63,098
Volvo AB, Class B	2,644		41,048
W.W. Grainger, Inc.	40		12,037
WABCO Holdings, Inc.1	38		5,010
Wabtec Corp.	104		7,667
Wartsila OYJ Abp	403		6,509
WEG SA	710		3,284
Weir Group PLC (The)	192		3,898
WSP Global, Inc.	129		7,052
Xylem, Inc.	79		6,244
Total Capital Goods			2,650,895
Commercial & Professional Services—1.1%
Adecco Group AG	629		33,550
Babcock International Group PLC	953		6,128
Brambles Ltd.	758		6,332
Bureau Veritas SA	276		6,477
China Everbright International Ltd.	4,249		4,319
Copart, Inc.1,2	39		2,363
Dai Nippon Printing Co. Ltd.	642		15,353
Edenred	41		1,868
Experian PLC	205		5,554
IHS Markit Ltd.1	83		4,514
Intertek Group PLC	61		3,861
ISS A/S	461		14,041
ManpowerGroup, Inc.	296		24,476
Park24 Co. Ltd.	100		2,171
Randstad NV2	590		28,798
Recruit Holdings Co. Ltd.	854		24,389
RELX PLC	494		10,566
Robert Half International, Inc.	97		6,320
SEEK Ltd.	93		1,159
SGS SA	3		7,465
Societe BIC SA	27		2,409
Sohgo Security Services Co. Ltd.	118		5,139
Teleperformance	31		5,576
Toppan Printing Co. Ltd.	1,046		15,791
Wolters Kluwer NV	93		6,339
Total Commercial & Professional Services			244,958
Consumer Durables & Apparel—3.0%
adidas AG	137		33,320
Arcelik AS1	1,474		4,409
Asics Corp.	327		4,387
Barratt Developments PLC	1,000		7,808
Berkeley Group Holdings PLC	83		3,990
Burberry Group PLC	159		4,049
Casio Computer Co. Ltd.2	57		744
Cie Financiere Richemont SA	206		15,005
Electrolux AB, Series B	619		15,943
EssilorLuxottica SA	182		19,900
Gildan Activewear, Inc.	88		3,165
Hanesbrands, Inc.	401		7,170
Hasbro, Inc.2	64		5,441
HengTen Networks Group Ltd.1	1,133		34
HUGO BOSS AG	51		3,486
Husqvarna AB, Class B	502		4,110
Kering	35		20,090
LG Electronics, Inc.	906		59,942
LPP SA	1		2,171
LVMH Moet Hennessy Louis Vuitton SE	175		64,432
	Shares		Value
Consumer Durables & Apparel (Continued)
Mattel, Inc.1,2	378	$	4,914
Mohawk Industries, Inc.1	81		10,218
Moncler SpA	43		1,734
Newell Brands, Inc.2	652		10,002
NIKE, Inc., Class B	408		34,358
Nikon Corp.	523		7,376
Panasonic Corp.	9,427		81,269
Pandora A/S	83		3,890
Persimmon PLC	172		4,864
Puma SE	11		6,386
PVH Corp.	98		11,951
SEB SA	54		9,095
Sega Sammy Holdings, Inc.	275		3,245
Sekisui Chemical Co. Ltd.	766		12,312
Sekisui House Ltd.	1,548		25,622
Sharp Corp.1,2	2,100		23,109
Sony Corp.	1,971		82,715
Swatch Group AG (The)	78		4,315
Swatch Group AG (The)	19		5,437
Tatung Co. Ltd.1	3,000		2,365
Taylor Wimpey PLC	2,776		6,347
Techtronic Industries Co. Ltd.	1,000		6,720
Titan Co. Ltd.	196		3,231
Under Armour, Inc., Class A1	119		2,516
Under Armour, Inc., Class C1,2	153		2,887
VF Corp.	167		14,514
Whirlpool Corp.	162		21,528
Yamaha Corp.	149		7,444
Total Consumer Durables & Apparel			689,960
Consumer Services—0.7%
Accor SA	72		2,919
Alsea SAB de CV	997		2,090
Aristocrat Leisure Ltd.	166		2,890
Benesse Holdings, Inc.2	133		3,455
China Travel International Investment Hong Kong Ltd.	1,756		447
Compass Group PLC	1,550		36,446
Crown Resorts Ltd.	336		2,747
Flight Centre Travel Group Ltd.	81		2,420
Hilton Worldwide Holdings, Inc.	50		4,156
Intercontinental Hotels Group PLC	34		2,045
Kangwon Land, Inc.	55		1,551
Melco Resorts & Entertainment Ltd.4	311		7,026
Merlin Entertainments PLC3	520		2,326
MGM China Holdings Ltd.	1,268		2,652
Minor International PCL	1,813		2,228
OPAP SA	193		1,994
Oriental Land Co. Ltd.	83		9,426
Paddy Power Betfair PLC1	33		2,547
Sands China Ltd.	1,982		9,961
Shangri-La Asia Ltd.	1,374		1,953
Sodexo SA	257		28,326
Tabcorp Holdings Ltd.	980		3,216
TUI AG	2,381		22,822
Vail Resorts, Inc.	11		2,390
Whitbread PLC	63		4,169
Total Consumer Services			162,202
Diversified Financials—4.0%
3i Group PLC	130		1,668
AEON Financial Service Co. Ltd.2	239		4,865
Ally Financial, Inc.	423		11,628
American Express Co.	460		50,278
Ameriprise Financial, Inc.	109		13,963
AMP Ltd.	9,740		14,529
Amundi SA3	107		6,740
ASX Ltd.	17		843

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Global ESG Revenue ETF

	Shares		Value
Diversified Financials (Continued)
B3 SA - Brasil Bolsa Balcao	178	$	1,469
Bajaj Finance Ltd.	69		3,013
Bank of New York Mellon Corp. (The)	381		19,214
BlackRock, Inc.	38		16,240
Brookfield Asset Management, Inc., Class A	1,407		65,571
Challenger Ltd.	353		2,076
CME Group, Inc.	27		4,444
Credit Suisse Group AG1	3,198		37,266
Deutsche Bank AG	6,082		49,580
Deutsche Boerse AG	35		4,492
Eurazeo SE	77		5,793
EXOR NV	3,007		195,494
FirstRand Ltd.2	2,577		11,251
Franklin Resources, Inc.	216		7,158
Goldman Sachs Group, Inc. (The)	284		54,525
Groupe Bruxelles Lambert SA	78		7,586
Hong Kong Exchanges & Clearing Ltd.	55		1,917
IGM Financial, Inc.	104		2,676
Industrivarden AB, Class C	8		168
Investec Ltd.	355		2,076
Investec PLC	754		4,346
Investor AB, Class B	84		3,792
Japan Exchange Group, Inc.	100		1,783
Julius Baer Group Ltd.1	117		4,726
Kinnevik AB, Class B	8		208
L E Lundbergforetagen AB, Class B	50		1,585
London Stock Exchange Group PLC	51		3,157
Macquarie Group Ltd.	145		13,330
Mitsubishi UFJ Lease & Finance Co. Ltd.	1,725		8,790
Moody's Corp.	31		5,614
Morgan Stanley	1,362		57,476
Muangthai Capital PCL	200		277
Natixis SA	5,098		27,311
Northern Trust Corp.	79		7,142
Onex Corp.	484		27,309
ORIX Corp.	1,935		27,788
PSG Group Ltd.	120		2,176
REC Ltd.	2,273		5,017
Remgro Ltd.	177		2,274
S&P Global, Inc.	36		7,580
Samsung Card Co. Ltd.	135		4,091
Schroders PLC	96		3,380
Singapore Exchange Ltd.	101		545
Standard Life Aberdeen PLC	7,462		25,665
State Street Corp.	213		14,018
T. Rowe Price Group, Inc.	63		6,308
UBS Group AG1	3,365		40,783
Voya Financial, Inc.2	170		8,493
Wendel SA	93		11,727
Yuanta Financial Holding Co. Ltd.	8,308		4,731
Total Diversified Financials			927,945
Energy—8.3%
Aker BP ASA	119		4,242
ARC Resources Ltd.	159		1,085
Baker Hughes a GE Co.2	1,190		32,987
Banpu PCL	7,583		3,871
Caltex Australia Ltd.	880		16,384
Cameco Corp.	145		1,709
Cenovus Energy, Inc.	2,130		18,495
ConocoPhillips	578		38,576
Cosan SA	231		2,532
Devon Energy Corp.	454		14,328
Empresas COPEC SA	1,856		23,565
Enagas SA	61		1,777
	Shares		Value
Energy (Continued)
Enbridge, Inc.	1,372	$	49,706
Encana Corp.	766		5,550
Energy Absolute PCL	262		396
Equinor ASA	3,486		76,447
Exxaro Resources Ltd.	188		2,143
Galp Energia SGPS SA	1,260		20,203
GS Holdings Corp.	366		17,025
Hess Corp.	124		7,469
Husky Energy, Inc.	1,664		16,504
Idemitsu Kosan Co. Ltd.	1,890		63,265
Imperial Oil Ltd.	1,095		29,901
Indian Oil Corp. Ltd.	45,410		106,749
Inpex Corp.	923		8,802
IRPC PCL	53,302		9,658
John Wood Group PLC	1,928		12,747
JXTG Holdings, Inc.	22,494		102,934
Koninklijke Vopak NV	33		1,581
Lundin Petroleum AB	89		3,021
Marathon Oil Corp.	407		6,801
MOL Hungarian Oil & Gas PLC	1,714		19,615
National Oilwell Varco, Inc.	310		8,258
Neste OYJ	196		20,907
Noble Energy, Inc.2	222		5,490
Novatek PJSC	78		13,369
Oil Search Ltd.	244		1,361
OMV AG	530		28,785
ONEOK, Inc.	222		15,504
Origin Energy Ltd.	2,211		11,308
Pembina Pipeline Corp.	176		6,467
Petronas Dagangan Bhd	1,217		7,453
Phillips 66	1,303		124,006
Polski Koncern Naftowy ORLEN SA	1,207		30,740
PrairieSky Royalty Ltd.	20		269
PTT Exploration & Production PCL	1,555		6,149
PTT PCL	52,615		79,582
Repsol SA	3,732		63,947
Royal Dutch Shell PLC, Class A	6,979		219,483
Royal Dutch Shell PLC, Class B	5,669		179,356
Santos Ltd.	739		3,585
Schlumberger Ltd.	829		36,120
Snam SpA	727		3,738
S-Oil Corp.	257		20,286
Suncor Energy, Inc.	990		32,095
TechnipFMC PLC	697		16,393
Thai Oil PCL	5,851		12,814
TOTAL SA	3,377		187,773
TransCanada Corp.	272		12,220
Ultrapar Participacoes SA	1,809		21,847
United Tractors Tbk PT	3,489		6,628
Vermilion Energy, Inc.2	55		1,358
Woodside Petroleum Ltd.	190		4,673
WorleyParsons Ltd.	604		6,075
Total Energy			1,908,107
Food & Staples Retailing—4.1%
Aeon Co. Ltd.2	4,372		91,501
Atacadao Distribuicao Comercio e Industria Ltda	3,092		15,962
Carrefour SA	5,260		98,338
Casino Guichard Perrachon SA	975		42,313
Clicks Group Ltd.	207		2,644
Empire Co. Ltd.	585		12,668
George Weston Ltd.	683		49,126
ICA Gruppen AB	374		15,040
J Sainsbury PLC	11,713		35,974
Jeronimo Martins SGPS SA	1,554		22,946

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Global ESG Revenue ETF

	Shares		Value
Food & Staples Retailing (Continued)
Koninklijke Ahold Delhaize NV	3,394	$	90,415
Kroger Co. (The)	4,672		114,931
Lawson, Inc.	90		4,993
Loblaw Cos. Ltd.	644		31,777
METRO AG	2,819		46,815
Metro, Inc.	364		13,405
Pick n Pay Stores Ltd.	1,527		7,032
President Chain Store Corp.	1,134		11,167
Seven & i Holdings Co. Ltd.	1,561		58,894
SPAR Group Ltd. (The)	600		7,983
Tesco PLC	31,848		96,320
Wm Morrison Supermarkets PLC	8,669		25,704
Woolworths Group Ltd.	2,184		47,163
Total Food & Staples Retailing			943,111
Food, Beverage & Tobacco—4.6%
Ajinomoto Co., Inc.	843		13,473
Ambev SA	3,192		13,804
Anadolu Efes Biracilik Ve Malt Sanayii AS	1,029		3,189
Anheuser-Busch InBev SA	693		58,173
Arca Continental SAB de CV	1,677		9,348
Archer-Daniels-Midland Co.	1,719		74,141
Associated British Foods PLC	777		24,694
Barry Callebaut AG	5		9,027
British American Tobacco Malaysia Bhd	102		903
British American Tobacco PLC	1,008		41,952
Bunge Ltd.	995		52,805
Campbell Soup Co.	301		11,477
Carlsberg A/S, Class B	68		8,501
Cia Cervecerias Unidas SA	218		3,121
CJ CheilJedang Corp.	58		16,504
Coca-Cola Amatil Ltd.	691		4,246
Coca-Cola Co. (The)	755		35,379
Coca-Cola European Partners PLC	308		15,936
Coca-Cola Femsa SAB de CV, Series L	440		2,911
Coca-Cola HBC AG1	257		8,757
Conagra Brands, Inc.	452		12,539
Danone SA	463		35,711
Diageo PLC	456		18,646
Fraser & Neave Holdings Bhd	100		853
General Mills, Inc.	408		21,114
Grupo Bimbo SAB de CV, Series A	8,899		18,617
Heineken Holding NV	303		30,382
Heineken NV	294		31,058
Hershey Co. (The)	57		6,545
Hormel Foods Corp.	251		11,235
Imperial Brands PLC	674		23,050
Ingredion, Inc.	70		6,628
ITC Ltd.	1,858		7,972
JM Smucker Co. (The)2	84		9,786
Kellogg Co.	269		15,435
Kerry Group PLC, Class A	81		9,050
Kikkoman Corp.2	59		2,894
Kirin Holdings Co. Ltd.	819		19,553
Kraft Heinz Co. (The)	626		20,439
Lamb Weston Holdings, Inc.	59		4,421
M Dias Branco SA	129		1,440
Marine Harvest ASA	209		4,672
McCormick & Co., Inc.	44		6,628
Molson Coors Brewing Co., Class B	198		11,811
Mondelez International, Inc., Class A	611		30,501
Nestle India Ltd.	12		1,899
Nestle Malaysia Bhd	39		1,402
Nestle SA	1,177		112,157
Nissin Foods Holdings Co. Ltd.	100		6,866
	Shares		Value
Food, Beverage & Tobacco (Continued)
Orkla ASA	718	$	5,520
PepsiCo, Inc.	629		77,084
Pernod Ricard SA	69		12,396
Remy Cointreau SA	11		1,469
Sime Darby Plantation Bhd	3,011		3,702
Standard Foods Corp.	1,035		1,740
Suntory Beverage & Food Ltd.	300		14,094
Swedish Match AB	36		1,839
Toyo Suisan Kaisha Ltd.	137		5,217
Treasury Wine Estates Ltd.	188		1,994
Wilmar International Ltd.	20,621		50,392
Total Food, Beverage & Tobacco			1,067,092
Health Care Equipment & Services—4.1%
ABIOMED, Inc.1	2		571
Alfresa Holdings Corp.	1,112		31,647
Align Technology, Inc.1	8		2,275
AmerisourceBergen Corp.	2,183		173,592
Bangkok Dusit Medical Services PCL	3,786		2,959
Becton Dickinson and Co.	76		18,980
Cardinal Health, Inc.	2,886		138,961
Cigna Corp.	814		130,908
Cochlear Ltd.	8		985
Coloplast A/S, Class B	28		3,075
ConvaTec Group PLC3	1,325		2,444
Cooper Cos., Inc. (The)	10		2,962
CVS Health Corp.	3,896		210,111
DaVita, Inc.1	148		8,035
Demant A/S1	69		2,042
DENTSPLY SIRONA, Inc.	104		5,157
Edwards Lifesciences Corp.1	23		4,401
Fisher & Paykel Healthcare Corp. Ltd.	90		964
Hartalega Holdings Bhd	556		631
HCA Healthcare, Inc.	351		45,763
Henry Schein, Inc.1,2	240		14,426
Humana, Inc.	208		55,328
IDEXX Laboratories, Inc.1	12		2,683
Koninklijke Philips NV	544		22,182
Laboratory Corp. of America Holdings1	85		13,003
Life Healthcare Group Holdings Ltd.	1,096		2,040
Netcare Ltd.	1,066		1,726
NMC Health PLC	57		1,696
Quest Diagnostics, Inc.	99		8,902
Ramsay Health Care Ltd.	179		8,182
ResMed, Inc.	27		2,807
Ryman Healthcare Ltd.	38		317
Shanghai Pharmaceuticals Holding Co. Ltd., Class H	3,369		7,339
Sonic Healthcare Ltd.	292		5,094
Sonova Holding AG	16		3,165
Straumann Holding AG	2		1,632
Sysmex Corp.	84		5,077
Terumo Corp.	98		2,993
Varian Medical Systems, Inc.1	25		3,543
Total Health Care Equipment & Services			948,598
Household & Personal Products—1.6%
Amorepacific Corp.	27		4,484
AMOREPACIFIC Group	112		6,868
Beiersdorf AG	100		10,413
Clorox Co. (The)	45		7,221
Colgate-Palmolive Co.	266		18,232
Dabur India Ltd.	220		1,298
Essity AB, Class B	470		13,585
Estee Lauder Cos., Inc., (The), Class A	62		10,264
Henkel AG & Co KGaA	167		15,892
Hindustan Unilever Ltd.	242		5,962
Kao Corp.	237		18,667

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Global ESG Revenue ETF

	Shares		Value
Household & Personal Products (Continued)
Kimberly-Clark Corp.	177	$	21,930
Kimberly-Clark de Mexico SAB de CV, Class A1	752		1,277
LG Household & Health Care Ltd.	6		7,490
L'Oreal SA	133		35,812
Marico Ltd.	233		1,166
Natura Cosmeticos SA	339		3,954
Procter & Gamble Co. (The)	734		76,373
Reckitt Benckiser Group PLC	233		19,377
Unicharm Corp.	201		6,652
Unilever Indonesia Tbk PT	964		3,332
Unilever NV	782		45,466
Unilever PLC	540		30,925
Total Household & Personal Products			366,640
Insurance—5.4%
Aegon NV	6,133		29,502
Allianz SE	443		98,629
Allstate Corp. (The)	429		40,403
Assicurazioni Generali SpA	4,715		87,355
Aviva PLC	7,174		38,552
AXA SA	5,529		139,251
Cathay Financial Holding Co. Ltd.	6,139		8,953
CNP Assurances	1,861		40,998
Fubon Financial Holding Co. Ltd.	18,635		27,813
Gjensidige Forsikring ASA2	198		3,426
Great-West Lifeco, Inc.	1,357		32,870
Hyundai Marine & Fire Insurance Co. Ltd.	461		15,392
Insurance Australia Group Ltd.	2,467		13,459
Intact Financial Corp.	102		8,634
Legal & General Group PLC	2,199		7,888
Manulife Financial Corp.	1,667		28,200
Mapfre SA	9,164		25,272
Marsh & McLennan Cos., Inc.	186		17,465
MS&AD Insurance Group Holdings, Inc.2	1,656		50,420
Muenchener Rueckversicherungs-Gesellschaft AG in Muenchen	260		61,600
NN Group NV	401		16,673
Old Mutual Ltd.2	1,995		3,025
Principal Financial Group, Inc.2	128		6,424
Progressive Corp. (The)	472		34,026
Prudential Financial, Inc.	397		36,476
Prudential PLC	3,173		63,569
QBE Insurance Group Ltd.	1,886		16,492
RSA Insurance Group PLC	1,397		9,244
Samsung Fire & Marine Insurance Co. Ltd.	83		22,010
Sanlam Ltd.	365		1,867
Sompo Holdings, Inc.	1,134		41,985
Sun Life Financial, Inc.2	405		15,564
Suncorp Group Ltd.	1,077		10,542
Swiss Re AG	369		36,044
T&D Holdings, Inc.	1,460		15,354
Tokio Marine Holdings, Inc.	1,007		48,783
Travelers Cos., Inc. (The)	235		32,233
Tryg A/S	112		3,076
Willis Towers Watson PLC	55		9,661
Zurich Insurance Group AG	138		45,672
Total Insurance			1,244,802
Materials—6.3%
Agnico Eagle Mines Ltd.	57		2,479
Air Liquide SA	218		27,746
Akzo Nobel NV	119		10,555
Amcor Ltd.	1,006		10,998
Anglo American PLC	1,390		37,194
Antofagasta PLC	476		5,992
Arkema SA	117		11,148
Asahi Kasei Corp.	2,142		22,100
	Shares		Value
Materials (Continued)
Asian Paints Ltd.	147	$	3,168
Avery Dennison Corp.	76		8,588
Axalta Coating Systems Ltd.1	202		5,092
Ball Corp.	240		13,886
Barrick Gold Corp.	1		14
BASF SE	1,100		80,938
BHP Group Ltd.	978		26,740
BHP Group PLC	821		19,776
BlueScope Steel Ltd.	1,094		10,841
Boliden AB	261		7,446
Boral Ltd.	1,372		4,473
Cementos Argos SA	1,210		2,993
Cemex SAB de CV1	32,868		15,369
China Steel Corp.	18,200		14,940
Chr Hansen Holding A/S	14		1,421
Clariant AG1	367		7,713
Covestro AG3	358		19,705
CRH PLC	1,008		31,295
Croda International PLC	30		1,969
Daicel Corp.	499		5,419
DowDuPont, Inc.	2,155		114,883
Ecolab, Inc.	101		17,831
Evonik Industries AG	684		18,648
Fletcher Building Ltd.	2,100		7,089
Fortescue Metals Group Ltd.	1,718		8,677
Franco-Nevada Corp.	9		675
Givaudan SA1	2		5,109
Grupo Argos SA	674		3,830
HeidelbergCement AG	327		23,558
Hitachi Chemical Co. Ltd.2	402		8,906
Hitachi Metals Ltd.	1,081		12,560
Imerys SA	108		5,389
International Flavors & Fragrances, Inc.	42		5,409
James Hardie Industries PLC	186		2,397
JFE Holdings, Inc.	2,400		40,732
Johnson Matthey PLC	552		22,600
JSR Corp.	268		4,155
Kaneka Corp.	150		5,617
Kansai Paint Co. Ltd.2	304		5,798
Kinross Gold Corp.1	1,042		3,588
Klabin SA	462		2,022
Koninklijke DSM NV	114		12,437
Kumba Iron Ore Ltd.	140		4,177
Kuraray Co. Ltd.	469		5,966
LafargeHolcim Ltd.1	643		31,759
LANXESS AG	183		9,769
LG Chem Ltd.	74		23,860
Linde PLC	181		31,843
Lotte Chemical Corp.	61		15,611
Lundin Mining Corp.	423		1,963
Mitsubishi Chemical Holdings Corp.2	5,724		40,306
Mitsubishi Materials Corp.	676		17,846
Mitsui Chemicals, Inc.	609		14,696
Mondi Ltd.	92		2,034
Mondi PLC	295		6,527
Mosaic Co. (The)	323		8,821
Newcrest Mining Ltd.	212		3,842
Newmont Mining Corp.	244		8,728
Nippon Steel & Sumitomo Metal Corp.	3,500		61,788
Nitto Denko Corp.	197		10,350
Norsk Hydro ASA	5,425		22,017
Novozymes A/S, Class B	48		2,209
Nutrien Ltd.	403		21,261
Orica Ltd.	343		4,296

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Global ESG Revenue ETF

	Shares		Value
Materials (Continued)
PPG Industries, Inc.	158	$	17,833
PTT Global Chemical PCL	11		23
Rio Tinto Ltd.	158		10,989
Rio Tinto PLC	601		34,936
Sherwin-Williams Co. (The)	45		19,382
Shin-Etsu Chemical Co. Ltd.	140		11,738
Showa Denko KK	300		10,543
Siam Cement PCL (The)	1,140		17,315
Sika AG	63		8,799
Smurfit Kappa Group PLC	383		10,700
Solvay SA	133		14,393
South32 Ltd.	2,960		7,843
Stora Enso OYJ, Class R	757		9,261
Sumitomo Chemical Co. Ltd.	4,686		21,803
Sumitomo Metal Mining Co. Ltd.	341		10,074
Symrise AG	45		4,058
Taiheiyo Cement Corp.	323		10,768
Teck Resources Ltd., Class B	494		11,433
Teijin Ltd.	560		9,238
thyssenkrupp AG	3,778		51,945
Titan Cement Co. SA	85		1,838
Toray Industries, Inc.	3,449		22,027
Umicore SA	395		17,559
UPM-Kymmene OYJ	439		12,816
voestalpine AG	596		18,116
West Fraser Timber Co. Ltd.	94		4,574
Wheaton Precious Metals Corp.	44		1,048
Total Materials			1,462,629
Media & Entertainment—1.7%
Alphabet, Inc., Class A1	57		67,083
Alphabet, Inc., Class C1	67		78,612
Axel Springer SE	71		3,670
Eutelsat Communications SA	89		1,558
Informa PLC	670		6,497
ITV PLC	2,859		4,735
JCDecaux SA	127		3,867
Konami Holdings Corp.	100		4,341
Liberty Global PLC, Class A1,2	153		3,813
Liberty Global PLC, Class C1,2	419		10,144
Multichoice Group Ltd.1	41		343
NCSoft Corp.	5		2,185
Nintendo Co. Ltd.	20		5,703
Omnicom Group, Inc.2	230		16,788
Pearson PLC	550		5,993
ProSiebenSat.1 Media SE	296		4,228
Publicis Groupe SA	229		12,273
Schibsted ASA, Class B	38		1,363
SES SA	84		1,308
Singapore Press Holdings Ltd.	412		733
Take-Two Interactive Software, Inc.1	22		2,076
Telenet Group Holding NV	75		3,611
Tencent Holdings Ltd.	1,164		53,529
Toho Co. Ltd.	37		1,486
Ubisoft Entertainment SA1	35		3,119
Vivendi SA	616		17,866
Walt Disney Co. (The)	594		65,952
WPP PLC	2,102		22,208
Total Media & Entertainment			405,084
Pharmaceuticals, Biotechnology & Life Sciences—3.4%
AbbVie, Inc.	438		35,298
Agilent Technologies, Inc.	71		5,707
Amgen, Inc.	136		25,837
Astellas Pharma, Inc.	875		13,111
AstraZeneca PLC	314		25,102
Bayer AG	627		40,552
	Shares		Value
Pharmaceuticals, Biotechnology & Life Sciences (Continued)
Biogen, Inc.1	44	$	10,401
Bristol-Myers Squibb Co.	484		23,092
Chugai Pharmaceutical Co. Ltd.	134		9,213
CSL Ltd.	67		9,278
Daiichi Sankyo Co. Ltd.	294		13,547
Eisai Co. Ltd.	114		6,399
Eli Lilly & Co.	213		27,639
Genmab A/S1	3		521
Gilead Sciences, Inc.	372		24,184
GlaxoSmithKline PLC	2,226		46,317
Grifols SA	130		3,643
H Lundbeck A/S2	74		3,205
Ipsen SA	21		2,881
IQVIA Holdings, Inc.1	81		11,652
Jazz Pharmaceuticals PLC1	17		2,430
Johnson & Johnson	648		90,584
Kalbe Farma Tbk PT	15,150		1,617
Kyowa Hakko Kirin Co. Ltd.	192		4,180
Lonza Group AG1	23		7,132
Merck & Co., Inc.	586		48,738
Merck KGaA	52		5,935
Mettler-Toledo International, Inc.1	5		3,615
Mitsubishi Tanabe Pharma Corp.	316		4,222
Novartis AG	726		69,823
Novo Nordisk A/S, Class B	304		15,930
Ono Pharmaceutical Co. Ltd.	200		3,919
Orion OYJ, Class B2	29		1,088
Otsuka Holdings Co. Ltd.	300		11,787
Piramal Enterprises Ltd.	63		2,513
QIAGEN NV1	42		1,704
Roche Holding AG	190		52,341
Sanofi	536		47,389
Santen Pharmaceutical Co. Ltd.	200		2,980
Sartorius Stedim Biotech	13		1,648
Shionogi & Co. Ltd.	98		6,067
Sumitomo Dainippon Pharma Co. Ltd.	187		4,624
Takeda Pharmaceutical Co. Ltd.	926		37,823
UCB SA	68		5,846
Vertex Pharmaceuticals, Inc.1	17		3,127
Vifor Pharma AG	13		1,758
Waters Corp.1	11		2,769
Zoetis, Inc.	68		6,846
Total Pharmaceuticals, Biotechnology & Life Sciences			786,014
Real Estate—1.2%
Aeon Mall Co. Ltd.	176		2,894
American Tower Corp.	45		8,868
Ascendas Real Estate Investment Trust	319		685
Azrieli Group Ltd.	15		889
Boston Properties, Inc.	24		3,213
British Land Co. PLC (The)	156		1,197
CapitaLand Commercial Trust	207		297
CapitaLand Ltd.	1,810		4,877
CapitaLand Mall Trust	401		705
CBRE Group, Inc., Class A1	441		21,807
Central Pattana PCL	549		1,267
City Developments Ltd.	588		3,929
Covivio	13		1,381
Daiwa House Industry Co. Ltd.	1,417		45,051
Deutsche Wohnen SE	36		1,748
Dexus	77		697
Digital Realty Trust, Inc.	27		3,213
Duke Realty Corp.	43		1,315
Equinix, Inc.	13		5,891
First Capital Realty, Inc.	38		609

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Global ESG Revenue ETF

	Shares		Value
Real Estate (Continued)
Gecina SA	6	$	888
Goodman Group	149		1,413
GPT Group (The)	137		604
Growthpoint Properties Ltd.2	527		892
Hammerson PLC	73		319
Hang Lung Group Ltd.	650		2,087
Hang Lung Properties Ltd.	803		1,960
HCP, Inc.	75		2,348
Host Hotels & Resorts, Inc.	337		6,369
Hulic Co. Ltd.	400		3,925
Hyprop Investments Ltd.	46		225
Hysan Development Co. Ltd.	92		493
ICADE	26		2,201
Iron Mountain, Inc.2	134		4,752
Jones Lang LaSalle, Inc.	96		14,801
Klepierre SA	48		1,681
Land Securities Group PLC	100		1,190
Lendlease Group	1,414		12,435
Liberty Property Trust	20		968
Link REIT	177		2,070
Macerich Co. (The)2	26		1,127
Mirvac Group	965		1,885
Mitsubishi Estate Co. Ltd.	764		13,843
Mitsui Fudosan Co. Ltd.	804		20,212
NEPI Rockcastle PLC	50		421
Nomura Real Estate Holdings, Inc.	284		5,452
Prologis, Inc.	48		3,454
Redefine Properties Ltd.	1,042		701
SBA Communications Corp.1	11		2,196
Segro PLC	57		500
Sime Darby Property Bhd	2,446		665
SM Prime Holdings, Inc.	3,013		2,289
Stockland	855		2,338
Sun Hung Kai Properties Ltd.	879		15,083
Swire Pacific Ltd., Class A	771		9,920
Swire Properties Ltd.	442		1,900
Swiss Prime Site AG1	17		1,489
Tokyu Fudosan Holdings Corp.	1,868		11,172
UDR, Inc.	27		1,227
Unibail-Rodamco-Westfield	19		3,118
UOL Group Ltd.	417		2,140
Weyerhaeuser Co.	343		9,035
Wharf Real Estate Investment Co. Ltd.	453		3,373
Total Real Estate			285,694
Retailing—3.2%
Best Buy Co., Inc.	822		58,411
Booking Holdings, Inc.1	8		13,959
Canadian Tire Corp. Ltd., Class A	106		11,425
Dufry AG1	105		11,028
Fast Retailing Co. Ltd.	60		28,204
Foschini Group Ltd. (The)	241		2,724
Gap, Inc. (The)	759		19,871
Harvey Norman Holdings Ltd.2	1,065		3,041
Hennes & Mauritz AB, Class B	1,528		25,535
Home Depot, Inc. (The)	623		119,547
Home Product Center PCL	4,745		2,288
Hotai Motor Co. Ltd.	679		8,317
Industria de Diseno Textil SA	1,160		34,126
J Front Retailing Co. Ltd.	399		4,748
Jardine Cycle & Carriage Ltd.	771		18,494
Kingfisher PLC	5,862		17,935
LKQ Corp.1	483		13,708
Lojas Renner SA	177		1,992
Lowe's Cos., Inc.	771		84,401
	Shares		Value
Retailing (Continued)
Marks & Spencer Group PLC	4,189	$	15,224
Marui Group Co. Ltd.2	100		2,019
Motus Holdings Ltd.	1		6
Mr Price Group Ltd.	121		1,590
Naspers Ltd., Class N	35		8,087
Next PLC	100		7,271
Nitori Holdings Co. Ltd.	38		4,909
Nordstrom, Inc.2	409		18,151
Petrobras Distribuidora SA	4,400		26,174
Rakuten, Inc.	1,600		15,149
S.A.C.I. Falabella	2,002		14,887
Target Corp.	1,159		93,021
Tiffany & Co.2	56		5,911
Tractor Supply Co.	89		8,701
USS Co. Ltd.	100		1,856
Woolworths Holdings Ltd.	1,966		6,336
Yamada Denki Co. Ltd.2	4,049		19,973
Zalando SE1,2,3	215		8,389
Total Retailing			737,408
Semiconductors & Semiconductor Equipment—1.2%
Analog Devices, Inc.	67		7,053
Applied Materials, Inc.	486		19,275
ASE Technology Holding Co. Ltd.1	6,941		15,201
ASM Pacific Technology Ltd.	210		2,342
ASML Holding NV	72		13,517
Infineon Technologies AG	442		8,777
Intel Corp.	1,514		81,302
Lam Research Corp.	69		12,352
Marvell Technology Group Ltd.	190		3,779
NVIDIA Corp.	90		16,160
Rohm Co. Ltd.	100		6,234
Skyworks Solutions, Inc.	52		4,289
STMicroelectronics NV	611		9,032
Taiwan Semiconductor Manufacturing Co. Ltd.	4,840		38,553
Texas Instruments, Inc.	166		17,608
Tokyo Electron Ltd.2	59		8,529
United Microelectronics Corp.	15,800		5,972
Xilinx, Inc.	26		3,297
Xinyi Solar Holdings Ltd.	2,000		963
Total Semiconductors & Semiconductor Equipment			274,235
Software & Services—3.4%
Accenture PLC, Class A	291		51,222
Adobe, Inc.1	39		10,393
Amadeus IT Group SA	82		6,574
ANSYS, Inc.1	8		1,462
Atos SE	172		16,609
Autodesk, Inc.1	17		2,649
Automatic Data Processing, Inc.	103		16,453
Broadridge Financial Solutions, Inc.	50		5,184
Cadence Design Systems, Inc.1	46		2,921
Capgemini SE	144		17,479
CGI, Inc.1	132		9,077
Cielo SA	1,269		3,094
Citrix Systems, Inc.	29		2,890
Cognizant Technology Solutions Corp., Class A	243		17,605
Computershare Ltd.	190		2,305
Dassault Systemes SE	30		4,472
DXC Technology Co.	393		25,274
Fortinet, Inc.1	23		1,931
Fujitsu Ltd.	617		44,517
HCL Technologies Ltd.	579		9,089
Infosys Ltd.	1,163		12,488
International Business Machines Corp.	659		92,985
Intuit, Inc.	29		7,581
Jack Henry & Associates, Inc.	14		1,942

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Global ESG Revenue ETF

	Shares		Value
Software & Services (Continued)
Mastercard, Inc., Class A	72	$	16,952
Micro Focus International PLC	370		9,626
Microsoft Corp.	1,204		142,000
Nice Ltd.1	14		1,650
Nomura Research Institute Ltd.	129		5,862
NTT Data Corp.	2,000		22,063
Open Text Corp.	83		3,188
Oracle Corp.	911		48,930
Oracle Corp. Japan	80		5,370
Otsuka Corp.	214		7,995
PayPal Holdings, Inc.1	178		18,484
PTC, Inc.1	16		1,475
Red Hat, Inc.1	21		3,837
Sabre Corp.	193		4,128
Sage Group PLC (The)	321		2,933
salesforce.com, Inc.1	91		14,412
SAP SE	303		35,043
ServiceNow, Inc.1	12		2,958
Shopify, Inc., Class A1	5		1,032
Symantec Corp.	231		5,311
Tata Consultancy Services Ltd.	774		22,364
Tech Mahindra Ltd.	462		5,175
Visa, Inc., Class A	140		21,867
VMware, Inc., Class A2	15		2,708
Western Union Co. (The)	353		6,520
Wipro Ltd.	2,268		8,342
Wix.Com Ltd.1	5		604
Workday, Inc., Class A1,2	10		1,928
Total Software & Services			788,953
Technology Hardware & Equipment—6.1%
AAC Technologies Holdings, Inc.	779		4,609
Acer, Inc.1	14,374		9,211
Apple, Inc.	1,724		327,474
Arista Networks, Inc.1	9		2,830
AU Optronics Corp.	32,077		11,813
BYD Electronic International Co. Ltd.	5,158		6,650
Chicony Electronics Co. Ltd.	1,072		2,494
Cisco Systems, Inc.	1,188		64,140
Cognex Corp.2	18		915
CommScope Holding Co., Inc.1	233		5,063
Corning, Inc.	352		11,651
Dell Technologies, Inc., Class C1	381		22,361
Delta Electronics, Inc.	1,741		8,982
F5 Networks, Inc.1	14		2,197
Flex Ltd.1	2,957		29,570
FLIR Systems, Inc.	40		1,903
FUJIFILM Holdings Corp.	694		31,563
Hewlett Packard Enterprise Co.	2,108		32,526
Hitachi High-Technologies Corp.	178		7,293
Hitachi Ltd.	3,078		99,694
HP, Inc.	2,792		54,249
Ingenico Group SA	53		3,786
Inventec Corp.	24,383		18,552
Keyence Corp.	9		5,608
Keysight Technologies, Inc.1	55		4,796
Konica Minolta, Inc.	1,197		11,777
Kyocera Corp.	340		19,967
Legend Holdings Corp., Class H3	10,900		28,951
Lenovo Group Ltd.	72,775		65,452
LG Display Co. Ltd.1	1,418		24,360
LG Innotek Co. Ltd.	91		9,420
Lite-On Technology Corp.	5,700		8,295
Micro-Star International Co. Ltd.	1,489		4,179
Motorola Solutions, Inc.	58		8,144
	Shares		Value
Technology Hardware & Equipment (Continued)
Murata Manufacturing Co. Ltd.	228	$	11,354
NEC Corp.	875		29,605
Nokia OYJ	4,672		26,618
Omron Corp.	160		7,488
Samsung Electro-Mechanics Co. Ltd.	83		7,641
Samsung Electronics Co. Ltd.	5,882		231,373
Samsung SDI Co. Ltd.	42		7,937
Seagate Technology PLC2	287		13,744
Seiko Epson Corp.	853		13,063
Shimadzu Corp.	176		5,088
TDK Corp.	171		13,394
TE Connectivity Ltd.	193		15,585
Telefonaktiebolaget LM Ericsson, Class B2	2,578		23,742
Trimble, Inc.1,2	89		3,596
Wistron Corp.	48,422		37,235
Xerox Corp.	377		12,056
Yaskawa Electric Corp.2	166		5,212
Yokogawa Electric Corp.	226		4,678
Total Technology Hardware & Equipment			1,419,884
Telecommunication Services—3.8%
Advanced Info Service PCL	1,067		6,187
Axiata Group Bhd	6,775		6,887
Bharti Infratel Ltd.	244		1,104
BT Group PLC	11,677		33,923
CenturyLink, Inc.2	1,923		23,057
Chunghwa Telecom Co. Ltd.	2,766		9,827
DiGi.Com Bhd	1,541		1,717
Elisa OYJ2	61		2,755
Far EasTone Telecommunications Co. Ltd.	1,355		3,267
Globe Telecom, Inc.	90		3,322
Hellenic Telecommunications Organization SA	423		5,671
HKT Trust & HKT Ltd.	3,109		4,998
KDDI Corp.2	2,339		50,400
Koninklijke KPN NV	2,540		8,060
Maxis Bhd	1,840		2,416
Millicom International Cellular SA	78		4,747
MTN Group Ltd.2	1,935		11,891
Nippon Telegraph & Telephone Corp.	3,223		136,945
NTT DOCOMO, Inc.2	2,242		49,657
Ooredoo Q.P.S.C.	520		9,484
Orange SA	3,339		54,363
PCCW Ltd.	8,961		5,571
Proximus SADP	309		8,920
Rogers Communications, Inc., Class B	182		9,791
Singapore Telecommunications Ltd.	6,662		14,854
SK Telecom Co. Ltd.	86		19,055
SoftBank Group Corp.	1,100		106,785
Spark New Zealand Ltd.	1,024		2,654
Swisscom AG	30		14,670
Taiwan Mobile Co. Ltd.	1,810		6,548
Tele2 AB, Class B	279		3,725
Telecom Italia SpA1,2	30,434		18,945
Telecom Italia SpA -RSP	13,570		7,716
Telefonica Deutschland Holding AG	2,759		8,671
Telefonica SA	7,543		63,260
Telekom Malaysia Bhd	4,652		3,646
Telekomunikasi Indonesia Persero Tbk PT	38,977		10,812
Telenor ASA	812		16,284
Telia Co. AB	2,437		11,022
Telstra Corp. Ltd.	9,398		22,164
TELUS Corp.	334		12,365
True Corp. PCL	37,006		5,551
Turkcell Iletisim Hizmetleri AS	1,589		3,400
Vodacom Group Ltd.	857		6,622

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Global ESG Revenue ETF

	Shares		Value
Telecommunication Services (Continued)
Vodafone Group PLC	31,618	$	57,597
Total Telecommunication Services			871,306
Transportation—3.1%
A.P. Moeller - Maersk A/S, Class A	17		20,583
A.P. Moeller - Maersk A/S, Class B	15		19,046
Aena SME SA3	31		5,587
Aeroports de Paris	29		5,614
Airports of Thailand PCL	1,078		2,310
AMERCO	11		4,087
ANA Holdings, Inc.2	563		20,646
Auckland International Airport Ltd.	105		583
Aurizon Holdings Ltd.	776		2,508
BTS Group Holdings PCL	2,911		1,009
C.H. Robinson Worldwide, Inc.	203		17,659
Canadian National Railway Co.	141		12,626
CAR, Inc.1	1,000		862
Central Japan Railway Co.	104		24,157
CSX Corp.	186		13,917
Delta Air Lines, Inc.	971		50,152
Deutsche Post AG	2,681		87,300
DSV A/S	172		14,239
East Japan Railway Co.	301		29,044
easyJet PLC	536		7,805
Eva Airways Corp.	13,918		6,819
Expeditors International of Washington, Inc.	120		9,108
Fraport AG Frankfurt Airport Services Worldwide	53		4,061
Getlink SE	97		1,472
Hankyu Hanshin Holdings, Inc.	187		7,011
Imperial Logistics Ltd.	2		8
Kamigumi Co. Ltd.	100		2,316
Kansas City Southern	29		3,363
Keio Corp.2	122		7,881
Keisei Electric Railway Co. Ltd.	100		3,632
Kintetsu Group Holdings Co. Ltd.	314		14,638
Kuehne + Nagel International AG	170		23,318
Kyushu Railway Co.	160		5,262
Latam Airlines Group SA	943		10,026
Localiza Rent a Car SA	207		1,758
MTR Corp. Ltd.	1,554		9,621
Nagoya Railroad Co. Ltd.2	263		7,283
Nippon Express Co. Ltd.	390		21,705
Nippon Yusen KK2	1,276		18,699
Norfolk Southern Corp.	70		13,082
Odakyu Electric Railway Co. Ltd.2	273		6,618
Royal Mail PLC	4,280		13,290
SATS Ltd.	362		1,366
Seibu Holdings, Inc.	400		7,000
Singapore Airlines Ltd.	1,830		13,051
Sinotrans Ltd., Class H	10,504		4,509
Southwest Airlines Co.	420		21,802
Sydney Airport	262		1,383
TAV Havalimanlari Holding AS	271		1,120
Tobu Railway Co. Ltd.	199		5,744
Tokyu Corp.	756		13,203
Transurban Group	364		3,413
Union Pacific Corp.	146		24,411
United Parcel Service, Inc., Class B	581		64,921
West Japan Railway Co.	193		14,541
Total Transportation			707,169
Utilities—5.3%
AES Corp.	539		9,745
Aguas Andinas SA, Class A	1,420		807
Alliant Energy Corp.	90		4,242
AltaGas Ltd.2	310		4,082
Ameren Corp.	103		7,576
	Shares		Value
Utilities (Continued)
American Electric Power Co., Inc.	232	$	19,430
American Water Works Co., Inc.	40		4,170
APA Group	296		2,098
Atco Ltd., Class I	121		4,076
AusNet Services	1,205		1,519
Canadian Utilities Ltd., Class A	112		3,058
Centrica PLC	24,582		36,580
CEZ AS	381		8,952
China Longyuan Power Group Corp. Ltd., Class H	2,353		1,637
CLP Holdings Ltd.	959		11,117
CMS Energy Corp.	148		8,220
Colbun SA	7,276		1,645
Consolidated Edison, Inc.	179		15,181
Dominion Energy, Inc.	235		18,015
DTE Energy Co.	132		16,466
Duke Energy Corp.	317		28,530
E.ON SE	4,167		46,377
Edison International	241		14,923
EDP - Energias de Portugal SA	5,467		21,516
Electric Power Development Co. Ltd.	373		9,085
Electricite de France SA	5,854		80,127
Emera, Inc.	152		5,685
Endesa SA	1,082		27,627
Enel Americas SA	68,398		12,160
Enel SpA	16,215		103,853
Engie Brasil Energia SA	202		2,217
Engie SA	5,175		77,167
Entergy Corp.	116		11,093
Eversource Energy	135		9,578
Exelon Corp.	789		39,553
Fortis, Inc.	203		7,505
Fortum OYJ2	295		6,039
HK Electric Investments & HK Electric Investments Ltd.	1,687		1,724
Huaneng Renewables Corp. Ltd., Class H	2,411		670
Hydro One Ltd.3	336		5,221
Iberdrola SA	5,618		49,368
Infraestructura Energetica Nova SAB de CV	403		1,621
Innogy SE3	962		44,525
Inter RAO UES PJSC	407,687		23,190
Interconexion Electrica SA ESP	528		2,645
Kyushu Electric Power Co., Inc.	1,708		20,169
Meridian Energy Ltd.	836		2,386
National Grid PLC	2,062		22,860
Naturgy Energy Group SA2	1,116		31,240
NextEra Energy, Inc.	98		18,945
NiSource, Inc.2	218		6,248
Orsted A/S3	151		11,456
Osaka Gas Co. Ltd.	696		13,733
Pinnacle West Capital Corp.	47		4,492
Power Assets Holdings Ltd.	53		368
Power Grid Corp. of India Ltd.	2,008		5,736
PPL Corp.2	290		9,205
Public Service Enterprise Group, Inc.	189		11,229
Red Electrica Corp. SA	115		2,453
RusHydro PJSC4	41		29
RWE AG	2,011		53,967
Sempra Energy	116		14,600
Southern Co. (The)	555		28,682
SSE PLC	2,146		33,193
Suez	1,718		22,782
Terna Rete Elettrica Nazionale SpA	466		2,955
Toho Gas Co. Ltd.2	152		6,825
Tokyo Gas Co. Ltd.	690		18,661
Towngas China Co. Ltd.1	1,468		1,154

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Global ESG Revenue ETF

	Shares		Value
Utilities (Continued)
United Utilities Group PLC	245	$	2,600
Veolia Environnement SA	1,560		34,910
Verbund AG	37		1,777
WEC Energy Group, Inc.	117		9,252
Xcel Energy, Inc.	243		13,659
Total Utilities			1,216,181
Total Common Stocks
(Cost $23,105,443)			22,819,653
PREFERRED STOCKS—0.7%
Automobiles & Components—0.1%
Bayerische Motoren Werke AG, 6.71%	155		10,199
Banks—0.3%
Itausa - Investimentos Itau SA, 3.41%	364		1,120
Banco Bradesco SA, 2.23%	2,781		30,685
Itau Unibanco Holding SA, 4.18%	2,676		23,675
Bancolombia SA, 2.57%	318		4,033
Total Banks			59,513
Capital Goods—0.0%5
Rolls-Royce Holdings PLC, Class C1,6	358,453		467
Food & Staples Retailing—0.0%5
Cia Brasileira de Distribuicao, 2.29%	323		7,591
Food, Beverage & Tobacco—0.0%5
Embotelladora Andina SA, Class B, 3.81%	381		1,391
Health Care Equipment & Services—0.0%5
Sartorius AG, 0.39%	6		1,030
Household & Personal Products—0.1%
Henkel AG & Co KGaA, 1.98%	107		10,933
LG Household & Health Care Ltd., 1.11%	1		737
Amorepacific Corp., 1.07%	9		848
Total Household & Personal Products			12,518
Materials—0.0%5
Sociedad Quimica y Minera de Chile SA, Class B, 5.04%	28		1,076
LG Chem Ltd., 2.92%	15		2,749
Total Materials			3,825
Technology Hardware & Equipment—0.2%
Samsung Electronics Co. Ltd., 2.92%	1,036		33,085
Telecommunication Services—0.0%5
Telefonica Brasil SA, 8.70%	733		8,946
Utilities—0.0%5
Cia Energetica de Minas Gerais, 4.64%	1,240		4,429
Total Preferred Stocks
(Cost $125,782)			142,994
WARRANT—0.0%5
Transportation—0.0%5
BTS Group Holdings PCL, expiring 12/29/191
(Cost $–)	733		26
Money Market Fund—0.0%5
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%7
(Cost $8,180)	8,180		8,180
Investment of Cash Collateral for Securities Loaned—1.5%
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%7
(Cost $349,894)	349,894		349,894
Total Investments—101.1% (Cost $23,589,299)			23,320,747
Liabilities in Excess of Other Assets—(1.1)%			(247,609	)
Net Assets—100.0%		$	23,073,138

PCL	-	Public Company Limited
PLC	-	Public Limited Company
REIT	-	Real Estate Investment Trust

1.	Non-income producing security.
2.	All or a portion of the security was on loan. The aggregate value of the securities on loan was $1,008,749; total value of the collateral held by the Fund was $1,064,895. The total value of the collateral includes non-cash U.S. Treasury securities collateral having a value of $715,001.
3.	Represents securities sold under Rule 144A, which are exempt from registration under the Securities Act of 1933, as amended. These securities have been determined to be liquid under guidelines established by the Board of Trustees. These securities amount to $163,854 or 0.71% of the Fund’s net assets at period end.
4.	American Depositary Receipt.
5.	Less than 0.05%.
6.	The value of this security was determined using significant unobservable inputs. See Note 2 of the accompanying Notes.
7.	Rate shown represents annualized 7-day yield as of March 31, 2019.

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Global ESG Revenue ETF

Geographical Holdings
Country		Value		% of Net Assets
United States	$	6,995,228		30.3	%
Japan		3,465,827		15.0
France		2,148,935		9.3
Germany		1,475,658		6.4
United Kingdom		1,271,431		5.5
Netherlands		968,342		4.2
Canada		847,259		3.7
South Korea		768,264		3.4
Switzerland		651,911		2.8
Spain		575,787		2.5
Australia		538,079		2.3
Italy		296,281		1.3
Taiwan		284,712		1.3
Brazil		280,783		1.2
Sweden		267,295		1.2
India		260,620		1.1
China		259,066		1.1
Singapore		183,971		0.8
Thailand		183,031		0.8
South Africa		174,501		0.8
Norway		143,376		0.6
Denmark		136,628		0.6
Belgium		131,754		0.6
Finland		116,232		0.5
Hong Kong		96,780		0.4
Chile		85,268		0.4
Austria		77,131		0.3
Indonesia		73,816		0.3
Malaysia		68,222		0.3
Mexico		66,054		0.3
Ireland		65,703		0.3
Portugal		64,665		0.3
Poland		42,287		0.2
Turkey		37,192		0.2
Russia		36,589		0.2
Qatar		29,987		0.1
Hungary		24,717		0.1
Colombia		23,022		0.1
Israel		20,018		0.1
Geographical Holdings
Country		Value		% of Net Assets
United Arab Emirates	$	18,375		0.1	%
New Zealand		13,993		0.1
Macau		12,613		0.0	1
Czech Republic		11,158		0.0	1
Greece		9,503		0.0	1
Philippines		7,585		0.0	1
Peru		6,239		0.0	1
Egypt		2,359		0.0	1
Luxembourg		1,308		0.0	1
Pakistan		771		0.0	1
Romania		421		0.0	1
Total Investments		23,320,747		101.1
Liabilities in Excess of Other Assets		(247,609	)	(1.1	)
Net Assets	$	23,073,138		100.0	%

1. Less than 0.05%.

Schedule of Investments March 31, 2019 Unaudited

Oppenheimer Russell 1000^® Momentum Factor ETF

	Shares		Value
COMMON STOCKS—99.8%
Automobiles & Components—0.3%
Aptiv PLC		28	$	2,226
Ford Motor Co.		202		1,773
General Motors Co.		146		5,417
Gentex Corp.		68		1,406
Tesla, Inc.1,2		26		7,276
Total Automobiles & Components				18,098
Banks—3.9%
Bank of America Corp.		1,393		38,433
BB&T Corp.1		167		7,770
Citigroup, Inc.		256		15,928
Citizens Financial Group, Inc.		50		1,625
Comerica, Inc.		24		1,760
Commerce Bancshares, Inc.1		29		1,684
Cullen/Frost Bankers, Inc.1		13		1,262
Fifth Third Bancorp		86		2,169
First Republic Bank1		37		3,717
Huntington Bancshares, Inc.1		208		2,637
JPMorgan Chase & Co.		698		70,659
KeyCorp		141		2,221
M&T Bank Corp.		24		3,768
PNC Financial Services Group, Inc. (The)		70		8,586
Popular, Inc.		36		1,877
Regions Financial Corp.		153		2,165
SunTrust Banks, Inc.		72		4,266
SVB Financial Group2		9		2,001
U.S. Bancorp		293		14,120
Webster Financial Corp.		21		1,064
Wells Fargo & Co.		498		24,063
Zions Bancorp NA		31		1,408
Total Banks				213,183
Capital Goods—5.1%
3M Co.		62		12,882
Allegion PLC		22		1,996
Allison Transmission Holdings, Inc.		32		1,437
AMETEK, Inc.		47		3,900
Boeing Co. (The)		146		55,687
Caterpillar, Inc.		66		8,942
Cummins, Inc.		16		2,526
Deere & Co.		55		8,791
Donaldson Co., Inc.1		34		1,702
Dover Corp.		37		3,471
Eaton Corp. PLC		74		5,961
Emerson Electric Co.		134		9,175
Fastenal Co.1		70		4,502
Flowserve Corp.		40		1,806
Fortive Corp.		60		5,033
General Dynamics Corp.		35		5,925
Graco, Inc.		27		1,337
Harris Corp.		25		3,993
HD Supply Holdings, Inc.2		33		1,431
HEICO Corp.1		14		1,328
HEICO Corp., Class A		25		2,101
Honeywell International, Inc.		141		22,408
IDEX Corp.		16		2,428
Illinois Tool Works, Inc.		26		3,732
Ingersoll-Rand PLC		74		7,988
		Shares		Value
Capital Goods (Continued)
Jacobs Engineering Group, Inc.		32	$	2,406
Johnson Controls International PLC		112		4,137
L3 Technologies, Inc.		13		2,683
Lennox International, Inc.		8		2,115
Lockheed Martin Corp.		35		10,506
Northrop Grumman Corp.		17		4,583
PACCAR, Inc.		37		2,521
Parker-Hannifin Corp.		14		2,403
Raytheon Co.		44		8,011
Rockwell Automation, Inc.		15		2,632
Roper Technologies, Inc.		28		9,575
Snap-on, Inc.1		9		1,409
Spirit AeroSystems Holdings, Inc., Class A		17		1,556
Stanley Black & Decker, Inc.		9		1,226
Teledyne Technologies, Inc.2		11		2,607
Textron, Inc.		46		2,330
TransDigm Group, Inc.2		15		6,810
United Technologies Corp.		168		21,653
W.W. Grainger, Inc.		16		4,815
Wabtec Corp.		22		1,622
Xylem, Inc.1		38		3,004
Total Capital Goods				279,086
Commercial & Professional Services—0.9%
Cintas Corp.		24		4,851
Copart, Inc.1,2		54		3,272
CoStar Group, Inc.2		11		5,130
IHS Markit Ltd.2		102		5,547
KAR Auction Services, Inc.		36		1,847
Republic Services, Inc.		60		4,823
Robert Half International, Inc.		32		2,085
Rollins, Inc.1		49		2,039
TransUnion		46		3,075
Verisk Analytics, Inc.		53		7,049
Waste Management, Inc.		100		10,391
Total Commercial & Professional Services				50,109
Consumer Durables & Apparel—1.0%
Garmin Ltd.		30		2,590
Hasbro, Inc.1		25		2,125
Lululemon Athletica, Inc.2		35		5,735
NIKE, Inc., Class B		342		28,800
Ralph Lauren Corp.		17		2,205
Tapestry, Inc.		44		1,430
Under Armour, Inc., Class A2		66		1,395
Under Armour, Inc., Class C1,2		69		1,302
VF Corp.		81		7,040
Total Consumer Durables & Apparel				52,622
Consumer Services—2.1%
Bright Horizons Family Solutions, Inc.2		19		2,415
Carnival Corp.		52		2,637
Chipotle Mexican Grill, Inc.2		9		6,393
Darden Restaurants, Inc.		41		4,980
Domino's Pizza, Inc.1		15		3,872
Dunkin' Brands Group, Inc.1		25		1,878
Grand Canyon Education, Inc.2		16		1,832
H&R Block, Inc.		45		1,077
Hilton Worldwide Holdings, Inc.		40		3,324
Las Vegas Sands Corp.		22		1,341

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 1000^® Momentum Factor ETF

	Shares		Value
Consumer Services (Continued)
Marriott International, Inc., Class A	35	$	4,378
McDonald's Corp.	182		34,562
Norwegian Cruise Line Holdings Ltd.2	29		1,594
Royal Caribbean Cruises Ltd.	18		2,063
Service Corp. International	53		2,128
ServiceMaster Global Holdings, Inc.2	40		1,868
Starbucks Corp.	349		25,945
Vail Resorts, Inc.	13		2,825
Yum China Holdings, Inc.	35		1,572
Yum! Brands, Inc.	73		7,286
Total Consumer Services			113,970
Diversified Financials—4.2%
AGNC Investment Corp.	72		1,296
Ally Financial, Inc.	47		1,292
American Express Co.	179		19,565
Annaly Capital Management, Inc.	154		1,538
Bank of New York Mellon Corp. (The)	118		5,951
Berkshire Hathaway, Inc., Class B2	462		92,811
BlackRock, Inc.	8		3,419
Capital One Financial Corp.	60		4,901
Cboe Global Markets, Inc.	11		1,050
Charles Schwab Corp. (The)	151		6,457
CME Group, Inc.	121		19,914
Credit Acceptance Corp.1,2	4		1,808
Discover Financial Services	50		3,558
E*TRADE Financial Corp.	52		2,414
FactSet Research Systems, Inc.1	10		2,483
Goldman Sachs Group, Inc. (The)	21		4,032
Intercontinental Exchange, Inc.	153		11,649
LPL Financial Holdings, Inc.	22		1,532
MarketAxess Holdings, Inc.1	9		2,215
Moody's Corp.	27		4,889
Morgan Stanley	103		4,347
MSCI, Inc.	26		5,170
Nasdaq, Inc.	31		2,712
New Residential Investment Corp.	76		1,285
Northern Trust Corp.	37		3,345
Raymond James Financial, Inc.	15		1,206
S&P Global, Inc.	56		11,791
Starwood Property Trust, Inc.	66		1,475
T. Rowe Price Group, Inc.	34		3,404
TD Ameritrade Holding Corp.	53		2,650
Voya Financial, Inc.1	25		1,249
Total Diversified Financials			231,408
Energy—4.5%
Anadarko Petroleum Corp.	147		6,686
Apache Corp.1	59		2,045
Cabot Oil & Gas Corp.	68		1,775
Cheniere Energy, Inc.2	72		4,922
Chevron Corp.	369		45,453
Concho Resources, Inc.	35		3,884
ConocoPhillips	377		25,161
Diamondback Energy, Inc.	32		3,249
EOG Resources, Inc.	127		12,088
Exxon Mobil Corp.	703		56,802
Halliburton Co.	35		1,026
Helmerich & Payne, Inc.	27		1,500
	Shares		Value
Energy (Continued)
Hess Corp.	90	$	5,421
HollyFrontier Corp.	55		2,710
Kinder Morgan, Inc.	334		6,683
Marathon Oil Corp.	222		3,710
Marathon Petroleum Corp.	122		7,302
Murphy Oil Corp.1	44		1,289
National Oilwell Varco, Inc.	71		1,891
Noble Energy, Inc.1	81		2,003
Occidental Petroleum Corp.	165		10,923
ONEOK, Inc.	129		9,009
PBF Energy, Inc., Class A	37		1,152
Phillips 66	71		6,757
Pioneer Natural Resources Co.	30		4,568
Schlumberger Ltd.	84		3,660
Targa Resources Corp.	54		2,244
Valero Energy Corp.	66		5,599
Williams Cos., Inc. (The)	120		3,446
WPX Energy, Inc.2	102		1,337
Total Energy			244,295
Food & Staples Retailing—1.6%
Casey's General Stores, Inc.1	11		1,416
Costco Wholesale Corp.	129		31,236
Kroger Co. (The)	217		5,338
Sysco Corp.	116		7,744
US Foods Holding Corp.2	44		1,536
Walgreens Boots Alliance, Inc.	225		14,236
Walmart, Inc.	269		26,236
Total Food & Staples Retailing			87,742
Food, Beverage & Tobacco—2.7%
Altria Group, Inc.	142		8,155
Archer-Daniels-Midland Co.	154		6,642
Brown-Forman Corp., Class B1	37		1,953
Coca-Cola Co. (The)	938		43,955
Conagra Brands, Inc.	53		1,470
Constellation Brands, Inc., Class A	16		2,805
General Mills, Inc.	39		2,018
Hershey Co. (The)	22		2,526
Hormel Foods Corp.	87		3,894
JM Smucker Co. (The)1	17		1,980
Kellogg Co.	39		2,238
Lamb Weston Holdings, Inc.	53		3,972
McCormick & Co., Inc.	44		6,628
Mondelez International, Inc., Class A	286		14,277
Monster Beverage Corp.2	38		2,074
PepsiCo, Inc.	261		31,986
Philip Morris International, Inc.	115		10,165
Post Holdings, Inc.2	20		2,188
Total Food, Beverage & Tobacco			148,926
Health Care Equipment & Services—8.1%
Abbott Laboratories	575		45,966
ABIOMED, Inc.2	16		4,569
Align Technology, Inc.2	12		3,412
AmerisourceBergen Corp.	24		1,908
Anthem, Inc.	84		24,106
Baxter International, Inc.	95		7,724
Becton Dickinson and Co.	66		16,482
Boston Scientific Corp.2	495		18,998
Cardinal Health, Inc.	34		1,637

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 1000^® Momentum Factor ETF

	Shares		Value
Health Care Equipment & Services (Continued)
Centene Corp.2	146	$	7,753
Cerner Corp.2	25		1,430
Chemed Corp.	5		1,600
Cigna Corp.	95		15,278
Cooper Cos., Inc. (The)	13		3,850
Covetrus, Inc.1,2	19		605
CVS Health Corp.	316		17,042
Danaher Corp.	148		19,539
DexCom, Inc.1,2	32		3,811
Edwards Lifesciences Corp.2	73		13,967
Encompass Health Corp.	36		2,102
HCA Healthcare, Inc.	101		13,168
Henry Schein, Inc.1,2	46		2,765
Hill-Rom Holdings, Inc.	17		1,800
Hologic, Inc.1,2	41		1,984
Humana, Inc.	44		11,704
IDEXX Laboratories, Inc.2	28		6,261
Insulet Corp.1,2	17		1,617
Intuitive Surgical, Inc.2	39		22,253
Laboratory Corp. of America Holdings2	20		3,060
Masimo Corp.2	15		2,074
McKesson Corp.	10		1,171
Medtronic PLC	357		32,516
Molina Healthcare, Inc.2	23		3,265
Penumbra, Inc.1,2	11		1,617
Quest Diagnostics, Inc.	22		1,978
ResMed, Inc.	43		4,471
STERIS PLC	28		3,585
Stryker Corp.	87		17,184
Teleflex, Inc.	9		2,719
UnitedHealth Group, Inc.	293		72,447
Universal Health Services, Inc., Class B	23		3,077
Varian Medical Systems, Inc.2	19		2,693
Veeva Systems, Inc., Class A2	45		5,709
WellCare Health Plans, Inc.1,2	15		4,046
West Pharmaceutical Services, Inc.	18		1,984
Zimmer Biomet Holdings, Inc.	38		4,853
Total Health Care Equipment & Services			441,780
Household & Personal Products—1.6%
Church & Dwight Co., Inc.	84		5,983
Clorox Co. (The)	32		5,135
Colgate-Palmolive Co.	83		5,689
Estee Lauder Cos., Inc., (The), Class A	53		8,774
Herbalife Nutrition Ltd.1,2	40		2,119
Kimberly-Clark Corp.	52		6,443
Procter & Gamble Co. (The)	522		54,314
Total Household & Personal Products			88,457
Insurance—1.8%
Aflac, Inc.	140		7,000
Alleghany Corp.2	3		1,837
Allstate Corp. (The)	34		3,202
American Financial Group, Inc.	14		1,347
American International Group, Inc.	36		1,550
Aon PLC	70		11,949
Arch Capital Group Ltd.2	48		1,551
Arthur J. Gallagher & Co.	56		4,374
Assured Guaranty Ltd.	29		1,288
	Shares		Value
Insurance (Continued)
Brown & Brown, Inc.	60	$	1,771
Chubb Ltd.	54		7,564
Cincinnati Financial Corp.	37		3,178
Everest Re Group Ltd.	7		1,512
Loews Corp.	44		2,109
Markel Corp.2	2		1,993
Marsh & McLennan Cos., Inc.	113		10,611
MetLife, Inc.	88		3,746
Old Republic International Corp.	73		1,527
Progressive Corp. (The)	174		12,544
Prudential Financial, Inc.	28		2,573
Reinsurance Group of America, Inc.	9		1,278
Torchmark Corp.	16		1,311
Travelers Cos., Inc. (The)	41		5,624
W.R. Berkley Corp.1	24		2,033
Willis Towers Watson PLC	25		4,391
Total Insurance			97,863
Materials—2.0%
Air Products & Chemicals, Inc.	45		8,593
AptarGroup, Inc.	19		2,021
Ashland Global Holdings, Inc.	17		1,328
Ball Corp.	109		6,307
Celanese Corp.	21		2,071
CF Industries Holdings, Inc.	65		2,657
DowDuPont, Inc.	206		10,982
Eastman Chemical Co.	19		1,442
Ecolab, Inc.	73		12,887
FMC Corp.	16		1,229
International Flavors & Fragrances, Inc.	14		1,803
International Paper Co.	35		1,620
Linde PLC	119		20,936
LyondellBasell Industries NV, Class A	39		3,279
Martin Marietta Materials, Inc.1	8		1,609
Mosaic Co. (The)	127		3,468
Newmont Mining Corp.	72		2,575
Nucor Corp.	70		4,085
PPG Industries, Inc.	34		3,838
RPM International, Inc.1	42		2,438
Sherwin-Williams Co. (The)	17		7,322
Sonoco Products Co.1	23		1,415
Steel Dynamics, Inc.	40		1,411
Vulcan Materials Co.	14		1,658
Total Materials			106,974
Media & Entertainment—6.3%
Activision Blizzard, Inc.	38		1,730
Alphabet, Inc., Class A2	51		60,021
Alphabet, Inc., Class C2	52		61,012
Cable One, Inc.	1		981
CBS Corp., Class B	53		2,519
Charter Communications, Inc., Class A2	32		11,101
Comcast Corp., Class A	766		30,625
Discovery, Inc., Class A1,2	56		1,513
Discovery, Inc., Class C2	124		3,152
Electronic Arts, Inc.2	17		1,728
Facebook, Inc., Class A2	126		21,003
Fox Corp., Class A2	122		4,479
Fox Corp., Class B2	57		2,045

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 1000^® Momentum Factor ETF

	Shares		Value
Media & Entertainment (Continued)
IAC/InterActiveCorp2	27	$	5,673
Interpublic Group of Cos., Inc. (The)	113		2,374
Liberty Broadband Corp., Class C2	18		1,651
Liberty Media Corp.-Liberty SiriusXM, Class C2	30		1,147
Live Nation Entertainment, Inc.1,2	44		2,796
Madison Square Garden Co. (The), Class A2	6		1,759
Netflix, Inc.2	152		54,197
Omnicom Group, Inc.1	48		3,503
Sirius XM Holdings, Inc.1	358		2,030
Take-Two Interactive Software, Inc.2	21		1,982
TripAdvisor, Inc.1,2	39		2,007
Twitter, Inc.2	261		8,582
Viacom, Inc., Class B	86		2,414
Walt Disney Co. (The)	486		53,961
Total Media & Entertainment			345,985
Pharmaceuticals, Biotechnology & Life Sciences—8.9%
AbbVie, Inc.	238		19,180
Agilent Technologies, Inc.	49		3,939
Alexion Pharmaceuticals, Inc.2	40		5,407
Allergan PLC	44		6,442
Amgen, Inc.	161		30,587
Biogen, Inc.2	33		7,801
BioMarin Pharmaceutical, Inc.1,2	34		3,020
Bio-Rad Laboratories, Inc., Class A2	5		1,528
Bio-Techne Corp.	12		2,383
Bristol-Myers Squibb Co.	173		8,254
Charles River Laboratories International, Inc.2	14		2,033
Eli Lilly & Co.	322		41,783
Exact Sciences Corp.1,2	42		3,638
Gilead Sciences, Inc.	172		11,182
Illumina, Inc.2	53		16,467
Ionis Pharmaceuticals, Inc.1,2	24		1,948
IQVIA Holdings, Inc.2	45		6,473
Jazz Pharmaceuticals PLC2	12		1,715
Johnson & Johnson	543		75,906
Merck & Co., Inc.	912		75,851
Mettler-Toledo International, Inc.2	3		2,169
Mylan NV2	47		1,332
Neurocrine Biosciences, Inc.2	29		2,555
PerkinElmer, Inc.1	29		2,794
Pfizer, Inc.	1,716		72,878
PRA Health Sciences, Inc.2	14		1,544
QIAGEN NV2	49		1,993
Regeneron Pharmaceuticals, Inc.2	8		3,285
Sarepta Therapeutics, Inc.1,2	25		2,980
Seattle Genetics, Inc.2	25		1,831
Thermo Fisher Scientific, Inc.	126		34,489
Vertex Pharmaceuticals, Inc.2	65		11,957
Waters Corp.2	14		3,524
Zoetis, Inc.	158		15,906
Total Pharmaceuticals, Biotechnology & Life Sciences			484,774
Real Estate—3.2%
Alexandria Real Estate Equities, Inc.	15		2,138
American Campus Communities, Inc.	26		1,237
American Tower Corp.	121		23,844
Apartment Investment & Management Co., Class A	34		1,710
	Shares		Value
Real Estate (Continued)
AvalonBay Communities, Inc.	29	$	5,821
Boston Properties, Inc.	26		3,481
Camden Property Trust	16		1,624
CBRE Group, Inc., Class A2	57		2,819
Crown Castle International Corp.	83		10,624
CubeSmart	41		1,314
Digital Realty Trust, Inc.	36		4,284
Duke Realty Corp.	74		2,263
EPR Properties	18		1,384
Equinix, Inc.	7		3,172
Equity LifeStyle Properties, Inc.	19		2,172
Equity Residential	83		6,252
Essex Property Trust, Inc.	13		3,760
Extra Space Storage, Inc.	30		3,057
Federal Realty Investment Trust	13		1,792
Gaming and Leisure Properties, Inc.	32		1,234
HCP, Inc.	119		3,725
Host Hotels & Resorts, Inc.	125		2,363
Iron Mountain, Inc.1	39		1,383
JBG SMITH Properties	29		1,199
Lamar Advertising Co., Class A1	17		1,347
Liberty Property Trust	29		1,404
Life Storage, Inc.	12		1,167
Medical Properties Trust, Inc.	114		2,110
Mid-America Apartment Communities, Inc.	21		2,296
National Retail Properties, Inc.	45		2,493
Omega Healthcare Investors, Inc.	69		2,632
Park Hotels & Resorts, Inc.	55		1,709
Prologis, Inc.	125		8,994
Public Storage	28		6,098
Realty Income Corp.	80		5,885
Regency Centers Corp.	21		1,417
SBA Communications Corp.2	23		4,592
Simon Property Group, Inc.	83		15,123
SL Green Realty Corp.	12		1,079
STORE Capital Corp.	54		1,809
Sun Communities, Inc.	21		2,489
UDR, Inc.	59		2,682
Ventas, Inc.	64		4,084
VEREIT, Inc.	199		1,666
VICI Properties, Inc.	74		1,619
Vornado Realty Trust	24		1,619
Welltower, Inc.	91		7,062
WP Carey, Inc.	31		2,428
Total Real Estate			176,456
Retailing—8.3%
Advance Auto Parts, Inc.	26		4,434
Amazon.com, Inc.2	140		249,305
AutoZone, Inc.2	7		7,169
Best Buy Co., Inc.	46		3,269
Booking Holdings, Inc.2	10		17,449
Burlington Stores, Inc.1,2	24		3,760
CarMax, Inc.1,2	21		1,466
Dollar General Corp.	82		9,783
Dollar Tree, Inc.2	14		1,470
Expedia Group, Inc.1	19		2,261
Foot Locker, Inc.	30		1,818

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 1000^® Momentum Factor ETF

	Shares		Value
Retailing (Continued)
Genuine Parts Co.	37	$	4,145
GrubHub, Inc.1,2	27		1,876
Home Depot, Inc. (The)	188		36,075
Kohl's Corp.	60		4,126
Lowe's Cos., Inc.	191		20,909
Macy's, Inc.	108		2,595
Nordstrom, Inc.1	31		1,376
O'Reilly Automotive, Inc.2	28		10,872
Pool Corp.1	11		1,815
Qurate Retail, Inc.2	56		895
Ross Stores, Inc.	116		10,800
Target Corp.	174		13,965
Tiffany & Co.1	26		2,744
TJX Cos., Inc. (The)	439		23,359
Tractor Supply Co.	42		4,106
Ulta Beauty, Inc.2	20		6,975
Wayfair, Inc., Class A2	14		2,078
Total Retailing			450,895
Semiconductors & Semiconductor Equipment—2.9%
Advanced Micro Devices, Inc.1,2	347		8,856
Analog Devices, Inc.	75		7,895
Broadcom, Inc.	50		15,036
Intel Corp.	1,143		61,379
KLA-Tencor Corp.	21		2,508
Lam Research Corp.	10		1,790
Maxim Integrated Products, Inc.	55		2,924
Microchip Technology, Inc.	23		1,908
Micron Technology, Inc.2	146		6,034
Monolithic Power Systems, Inc.	11		1,490
NVIDIA Corp.	52		9,337
NXP Semiconductors NV	13		1,149
Qorvo, Inc.2	22		1,578
QUALCOMM, Inc.	127		7,243
Texas Instruments, Inc.	161		17,077
Xilinx, Inc.	88		11,158
Total Semiconductors & Semiconductor Equipment			157,362
Software & Services—16.4%
Accenture PLC, Class A	152		26,755
Adobe, Inc.2	168		44,770
Akamai Technologies, Inc.2	47		3,370
Amdocs Ltd.	26		1,407
ANSYS, Inc.2	18		3,289
Aspen Technology, Inc.2	22		2,294
Atlassian Corp. PLC, Class A2	37		4,158
Autodesk, Inc.2	67		10,440
Automatic Data Processing, Inc.	139		22,204
Black Knight, Inc.2	34		1,853
Booz Allen Hamilton Holding Corp.	49		2,849
Broadridge Financial Solutions, Inc.	32		3,318
Cadence Design Systems, Inc.2	57		3,620
Citrix Systems, Inc.	42		4,186
Cognizant Technology Solutions Corp., Class A	95		6,883
EPAM Systems, Inc.2	14		2,368
Euronet Worldwide, Inc.2	15		2,139
Fair Isaac Corp.2	8		2,173
Fidelity National Information Services, Inc.	86		9,727
	Shares		Value
Software & Services (Continued)
FireEye, Inc.1,2	63	$	1,058
First Data Corp., Class A2	122		3,205
Fiserv, Inc.1,2	119		10,505
FleetCor Technologies, Inc.1,2	18		4,439
Fortinet, Inc.2	52		4,366
Gartner, Inc.1,2	26		3,944
Global Payments, Inc.	36		4,915
GoDaddy, Inc., Class A2	53		3,985
Guidewire Software, Inc.1,2	23		2,235
International Business Machines Corp.	71		10,018
Intuit, Inc.	83		21,697
Jack Henry & Associates, Inc.	22		3,052
Leidos Holdings, Inc.	26		1,666
Mastercard, Inc., Class A	304		71,577
Microsoft Corp.	2,417		285,061
Nutanix, Inc., Class A2	39		1,472
Okta, Inc.2	32		2,647
Oracle Corp.	565		30,346
Palo Alto Networks, Inc.1,2	24		5,829
Paychex, Inc.	60		4,812
Paycom Software, Inc.1,2	18		3,404
PayPal Holdings, Inc.2	298		30,944
PTC, Inc.2	42		3,872
Red Hat, Inc.2	61		11,145
RingCentral, Inc., Class A2	25		2,695
Sabre Corp.	85		1,818
salesforce.com, Inc.2	227		35,950
ServiceNow, Inc.2	60		14,789
Splunk, Inc.1,2	44		5,482
Square, Inc., Class A1,2	108		8,091
SS&C Technologies Holdings, Inc.	56		3,567
Synopsys, Inc.2	28		3,224
Tableau Software, Inc., Class A1,2	26		3,309
Total System Services, Inc.	48		4,561
Twilio, Inc., Class A2	27		3,488
Tyler Technologies, Inc.2	8		1,635
Ultimate Software Group, Inc. (The)2	8		2,641
VeriSign, Inc.2	36		6,536
Visa, Inc., Class A1	542		84,655
VMware, Inc., Class A1	23		4,152
Western Union Co. (The)	77		1,422
WEX, Inc.2	12		2,304
Workday, Inc., Class A1,2	48		9,257
Worldpay, Inc., Class A2	67		7,605
Zendesk, Inc.2	39		3,315
Total Software & Services			894,493
Technology Hardware & Equipment—6.9%
Amphenol Corp., Class A	51		4,816
Apple, Inc.	1,203		228,510
Arista Networks, Inc.2	11		3,459
ARRIS International PLC2	46		1,454
Avnet, Inc.	28		1,214
CDW Corp.	49		4,722
Cisco Systems, Inc.	1,415		76,396
Corning, Inc.	148		4,899
Dell Technologies, Inc., Class C2	46		2,700
Dolby Laboratories, Inc., Class A	16		1,007

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 1000^® Momentum Factor ETF

	Shares		Value
Technology Hardware & Equipment (Continued)
F5 Networks, Inc.2	21	$	3,296
FLIR Systems, Inc.	25		1,189
Hewlett Packard Enterprise Co.	324		4,999
HP, Inc.	441		8,569
Juniper Networks, Inc.	65		1,721
Keysight Technologies, Inc.2	65		5,668
Motorola Solutions, Inc.	58		8,144
National Instruments Corp.	33		1,464
NetApp, Inc.	84		5,825
Zebra Technologies Corp., Class A2	20		4,191
Total Technology Hardware & Equipment			374,243
Telecommunication Services—1.8%
AT&T, Inc.	581		18,220
CenturyLink, Inc.1	290		3,477
Telephone & Data Systems, Inc.	34		1,045
T-Mobile US, Inc.2	73		5,044
Verizon Communications, Inc.	1,198		70,838
Total Telecommunication Services			98,624
Transportation—2.2%
Alaska Air Group, Inc.1	19		1,066
C.H. Robinson Worldwide, Inc.	30		2,610
CSX Corp.	282		21,099
Delta Air Lines, Inc.	119		6,146
Expeditors International of Washington, Inc.	46		3,491
FedEx Corp.	34		6,168
JB Hunt Transport Services, Inc.	13		1,317
Kansas City Southern	13		1,508
Kirby Corp.1,2	17		1,277
Norfolk Southern Corp.	84		15,699
Old Dominion Freight Line, Inc.	13		1,877
Southwest Airlines Co.	37		1,921
Union Pacific Corp.	207		34,610
United Continental Holdings, Inc.2	88		7,021
United Parcel Service, Inc., Class B	103		11,509
XPO Logistics, Inc.1,2	21		1,129
Total Transportation			118,448
Utilities—3.1%
AES Corp.	240		4,339
Alliant Energy Corp.	49		2,309
Ameren Corp.	66		4,854
American Electric Power Co., Inc.	99		8,291
American Water Works Co., Inc.	37		3,858
Atmos Energy Corp.	27		2,779
CenterPoint Energy, Inc.1	88		2,702
CMS Energy Corp.	61		3,388
Consolidated Edison, Inc.	36		3,053
Dominion Energy, Inc.	88		6,746
DTE Energy Co.	40		4,990
Duke Energy Corp.	138		12,420
Edison International	21		1,300
Entergy Corp.	40		3,825
Evergy, Inc.	65		3,773
Eversource Energy	68		4,825
Exelon Corp.	263		13,184
FirstEnergy Corp.	155		6,449
NextEra Energy, Inc.	130		25,132
NiSource, Inc.1	63		1,806
NRG Energy, Inc.	104		4,418
	Shares		Value
Utilities (Continued)
OGE Energy Corp.	57	$	2,458
Pinnacle West Capital Corp.	21		2,007
PPL Corp.1	101		3,206
Public Service Enterprise Group, Inc.	109		6,476
Sempra Energy	50		6,293
Southern Co. (The)	154		7,959
UGI Corp.	51		2,826
Vistra Energy Corp.	137		3,566
WEC Energy Group, Inc.	70		5,536
Xcel Energy, Inc.	101		5,677
Total Utilities			170,445
Total Common Stocks
(Cost $4,642,124)			5,446,238
Money Market Fund—0.1%
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%3
(Cost $7,089)	7,089		7,089
Investment of Cash Collateral for Securities Loaned—0.0%4
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%3
(Cost $1,090)	1,090		1,090
Total Investments—99.9% (Cost $4,650,303)			5,454,417
Other Assets in Excess of Liabilities—0.1%			2,254
Net Assets—100.0%		$	5,456,671

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 1000^® Momentum Factor ETF

PLC - Public Limited Company

1.	All or a portion of the security was on loan. The aggregate value of the securities on loan was $294,126; total value of the collateral held by the Fund was $300,543. The total value of the collateral includes non-cash U.S. Treasury securities collateral having a value of $299,453.
2.	Non-income producing security.
3.	Rate shown represents annualized 7-day yield as of March 31, 2019.
4.	Less than 0.05%

Schedule of Investments March 31, 2019 Unaudited

Oppenheimer Russell 1000^® Value Factor ETF

	Shares		Value
COMMON STOCKS—99.8%
Automobiles & Components—1.7%
Adient PLC1		65	$	842
Aptiv PLC		94		7,472
BorgWarner, Inc.		125		4,801
Ford Motor Co.		2,714		23,829
General Motors Co.		934		34,652
Gentex Corp.		105		2,172
Goodyear Tire & Rubber Co. (The)		167		3,031
Harley-Davidson, Inc.1		106		3,780
Lear Corp.		45		6,107
Thor Industries, Inc.		32		1,996
Visteon Corp.1,2		18		1,212
Total Automobiles & Components				89,894
Banks—4.9%
Associated Banc-Corp.		62		1,324
Bank OZK1		44		1,275
BankUnited, Inc.		58		1,937
BB&T Corp.1		330		15,355
CIT Group, Inc.		51		2,446
Citizens Financial Group, Inc.		210		6,825
Comerica, Inc.		51		3,739
Commerce Bancshares, Inc.1		25		1,452
Cullen/Frost Bankers, Inc.1		17		1,650
East West Bancorp, Inc.		42		2,015
F.N.B. Corp.1		106		1,124
Fifth Third Bancorp		318		8,020
First Citizens BancShares, Inc., Class A		2		814
First Republic Bank1		42		4,219
Huntington Bancshares, Inc.1		498		6,315
KeyCorp		445		7,009
M&T Bank Corp.		61		9,578
New York Community Bancorp, Inc.1		306		3,540
PacWest Bancorp		38		1,429
People's United Financial, Inc.1		125		2,055
PNC Financial Services Group, Inc. (The)		172		21,098
Popular, Inc.		53		2,763
Prosperity Bancshares, Inc.1		21		1,450
Regions Financial Corp.		498		7,047
Signature Bank		17		2,177
SunTrust Banks, Inc.		272		16,116
Synovus Financial Corp.		43		1,477
U.S. Bancorp		574		27,661
Umpqua Holdings Corp.		75		1,238
Webster Financial Corp.		27		1,368
Wells Fargo & Co.		1,776		85,816
Western Alliance Bancorp2		25		1,026
Wintrust Financial Corp.		17		1,145
Zions Bancorp NA		70		3,179
Total Banks				255,682
Capital Goods—6.5%
A.O. Smith Corp.		32		1,706
Acuity Brands, Inc.		19		2,280
AECOM2		109		3,234
AGCO Corp.		43		2,991
Air Lease Corp.		64		2,198
Allegion PLC1		25		2,268
Allison Transmission Holdings, Inc.		58		2,605
		Shares		Value
Capital Goods (Continued)
Arconic, Inc.		231	$	4,414
Arcosa, Inc.		26		794
BWX Technologies, Inc.		17		843
Carlisle Cos., Inc.		23		2,820
Colfax Corp.1,2		36		1,069
Crane Co.		19		1,608
Cummins, Inc.		88		13,893
Curtiss-Wright Corp.		14		1,587
Deere & Co.		110		17,582
Donaldson Co., Inc.1		34		1,702
Dover Corp.		68		6,378
Eaton Corp. PLC		230		18,529
Flowserve Corp.		39		1,760
Fluor Corp.		91		3,349
Fortune Brands Home & Security, Inc.		62		2,952
General Dynamics Corp.		99		16,759
Graco, Inc.		34		1,684
HD Supply Holdings, Inc.2		115		4,985
Hexcel Corp.		26		1,798
Hubbell, Inc.1		21		2,478
Huntington Ingalls Industries, Inc.		21		4,351
IDEX Corp.		14		2,124
Ingersoll-Rand PLC		112		12,090
ITT, Inc.		33		1,914
Jacobs Engineering Group, Inc.		57		4,286
Johnson Controls International PLC		324		11,969
L3 Technologies, Inc.		29		5,985
Lennox International, Inc.		11		2,908
Lincoln Electric Holdings, Inc.		20		1,677
Lockheed Martin Corp.		92		27,615
Masco Corp.		118		4,639
Middleby Corp. (The)1,2		18		2,341
MSC Industrial Direct Co., Inc., Class A		14		1,158
Nordson Corp.		14		1,855
nVent Electric PLC		66		1,781
Oshkosh Corp.		38		2,855
Owens Corning		66		3,110
PACCAR, Inc.		206		14,037
Parker-Hannifin Corp.		44		7,551
Pentair PLC		78		3,472
Quanta Services, Inc.		92		3,472
Regal Beloit Corp.		23		1,883
Sensata Technologies Holding PLC2		50		2,251
Snap-on, Inc.1		24		3,756
Spirit AeroSystems Holdings, Inc., Class A		42		3,844
Stanley Black & Decker, Inc.		64		8,715
Teledyne Technologies, Inc.2		8		1,896
Terex Corp.		35		1,125
Textron, Inc.		95		4,813
Timken Co. (The)		33		1,439
Toro Co. (The)		31		2,134
Trinity Industries, Inc.1		80		1,738
United Rentals, Inc.2		47		5,370
United Technologies Corp.		281		36,218
Univar, Inc.2		75		1,662
USG Corp.		28		1,212

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 1000^® Value Factor ETF

	Shares		Value
Capital Goods (Continued)
Valmont Industries, Inc.	9	$	1,171
W.W. Grainger, Inc.	16		4,815
WABCO Holdings, Inc.2	27		3,559
Wabtec Corp.	16		1,180
Watsco, Inc.	9		1,289
WESCO International, Inc.2	32		1,696
Xylem, Inc.1	43		3,399
Total Capital Goods			340,621
Commercial & Professional Services—1.0%
Clean Harbors, Inc.2	21		1,502
Copart, Inc.1,2	32		1,939
CoStar Group, Inc.2	3		1,399
Equifax, Inc.	30		3,555
KAR Auction Services, Inc.	48		2,463
ManpowerGroup, Inc.	44		3,638
Nielsen Holdings PLC	180		4,261
Republic Services, Inc.	78		6,270
Robert Half International, Inc.	43		2,802
Stericycle, Inc.1,2	20		1,088
Waste Management, Inc.	197		20,470
Total Commercial & Professional Services			49,387
Consumer Durables & Apparel—1.4%
Brunswick Corp.	36		1,812
Capri Holdings Ltd.2	77		3,523
Carter’s, Inc.1	19		1,915
D.R. Horton, Inc.	146		6,042
Garmin Ltd.	60		5,181
Hanesbrands, Inc.	216		3,862
Hasbro, Inc.1	47		3,996
Leggett & Platt, Inc.1	64		2,702
Lennar Corp., Class A	111		5,449
Mohawk Industries, Inc.2	29		3,658
Newell Brands, Inc.1	333		5,108
NVR, Inc.2	1		2,767
Polaris Industries, Inc.1	24		2,026
PulteGroup, Inc.	144		4,026
PVH Corp.	25		3,049
Ralph Lauren Corp.	21		2,723
Skechers U.S.A., Inc., Class A2	56		1,882
Tapestry, Inc.	92		2,989
Tempur Sealy International, Inc.1,2	25		1,442
Toll Brothers, Inc.	94		3,403
Whirlpool Corp.	48		6,379
Total Consumer Durables & Apparel			73,934
Consumer Services—1.4%
Aramark	151		4,462
Carnival Corp.	191		9,687
Chipotle Mexican Grill, Inc.2	4		2,841
Darden Restaurants, Inc.	52		6,316
Domino's Pizza, Inc.1	7		1,807
Dunkin' Brands Group, Inc.1	18		1,352
Extended Stay America, Inc.	61		1,095
frontdoor, Inc.2	30		1,033
Graham Holdings Co., Class B	4		2,733
Grand Canyon Education, Inc.2	10		1,145
H&R Block, Inc.	134		3,208
Hilton Grand Vacations, Inc.2	39		1,203
MGM Resorts International	236		6,056
	Shares		Value
Consumer Services (Continued)
Norwegian Cruise Line Holdings Ltd.2	109	$	5,991
Royal Caribbean Cruises Ltd.	90		10,316
Service Corp. International	83		3,332
ServiceMaster Global Holdings, Inc.2	33		1,541
Six Flags Entertainment Corp.	21		1,036
Vail Resorts, Inc.	7		1,521
Wyndham Destinations, Inc.	67		2,713
Wyndham Hotels & Resorts, Inc.	21		1,050
Yum China Holdings, Inc.	110		4,940
Total Consumer Services			75,378
Diversified Financials—7.0%
Affiliated Managers Group, Inc.	26		2,785
AGNC Investment Corp.	246		4,428
Ally Financial, Inc.	297		8,165
American Express Co.	403		44,048
Ameriprise Financial, Inc.	78		9,992
Annaly Capital Management, Inc.	789		7,882
AXA Equitable Holdings, Inc.	79		1,591
Bank of New York Mellon Corp. (The)	348		17,550
Berkshire Hathaway, Inc., Class B2	687		138,011
BGC Partners, Inc., Class A1	176		935
Capital One Financial Corp.	329		26,876
Cboe Global Markets, Inc.	16		1,527
Chimera Investment Corp.	167		3,130
Credit Acceptance Corp.1,2	5		2,260
Discover Financial Services	227		16,153
Evercore, Inc., Class A	20		1,820
FactSet Research Systems, Inc.1	7		1,738
Franklin Resources, Inc.	144		4,772
Interactive Brokers Group, Inc., Class A1	17		882
Invesco Ltd.	231		4,461
Jefferies Financial Group, Inc.	212		3,983
Lazard Ltd., Class A	75		2,710
Legg Mason, Inc.	47		1,286
LPL Financial Holdings, Inc.	34		2,368
MFA Financial, Inc.	162		1,178
Nasdaq, Inc.	31		2,712
Navient Corp.	178		2,059
New Residential Investment Corp.	99		1,674
Northern Trust Corp.	63		5,696
OneMain Holdings, Inc.	52		1,651
Raymond James Financial, Inc.	52		4,181
Santander Consumer USA Holdings, Inc.	80		1,690
SEI Investments Co.	27		1,411
State Street Corp.	219		14,412
Synchrony Financial	513		16,365
Two Harbors Investment Corp.	117		1,583
Voya Financial, Inc.1	53		2,648
Total Diversified Financials			366,613
Energy—6.9%
Antero Resources Corp.1,2	146		1,289
Apache Corp.1	235		8,145
Cabot Oil & Gas Corp.	63		1,644
Chesapeake Energy Corp.1,2	793		2,458
Chevron Corp.	693		85,364
Cimarex Energy Co.	39		2,726
CNX Resources Corp.2	130		1,400

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 1000^® Value Factor ETF

	Shares		Value
Energy (Continued)
Devon Energy Corp.	269	$	8,490
Diamondback Energy, Inc.	26		2,640
EQT Corp.	85		1,763
Equitrans Midstream Corp.	68		1,481
Exxon Mobil Corp.	1,821		147,137
HollyFrontier Corp.	75		3,695
Marathon Petroleum Corp.	443		26,514
Murphy Oil Corp.1	77		2,256
Parsley Energy, Inc., Class A2	45		868
PBF Energy, Inc., Class A	77		2,398
Phillips 66	263		25,030
QEP Resources, Inc.2	158		1,231
Range Resources Corp.	110		1,236
Targa Resources Corp.	51		2,119
Transocean Ltd.2	100		871
Valero Energy Corp.	284		24,092
Williams Cos., Inc. (The)	255		7,324
Total Energy			362,171
Food & Staples Retailing—4.4%
Casey's General Stores, Inc.1	26		3,348
Costco Wholesale Corp.	246		59,567
Kroger Co. (The)	583		14,342
Sprouts Farmers Market, Inc.1,2	83		1,788
Sysco Corp.	270		18,025
US Foods Holding Corp.2	140		4,887
Walgreens Boots Alliance, Inc.	582		36,823
Walmart, Inc.	959		93,531
Total Food & Staples Retailing			232,311
Food, Beverage & Tobacco—4.2%
Archer-Daniels-Midland Co.	366		15,786
Bunge Ltd.	89		4,723
Campbell Soup Co.	110		4,194
Conagra Brands, Inc.	176		4,882
Flowers Foods, Inc.1	70		1,492
General Mills, Inc.	294		15,214
Hain Celestial Group, Inc. (The)1,2	42		971
Hershey Co. (The)	44		5,053
Hormel Foods Corp.	85		3,805
Ingredion, Inc.	38		3,598
JM Smucker Co. (The)1	66		7,689
Kellogg Co.	105		6,025
Lamb Weston Holdings, Inc.	34		2,548
McCormick & Co., Inc.	32		4,820
Molson Coors Brewing Co., Class B	107		6,383
PepsiCo, Inc.	522		63,971
Philip Morris International, Inc.	544		48,084
Post Holdings, Inc.2	24		2,626
TreeHouse Foods, Inc.1,2	31		2,001
Tyson Foods, Inc., Class A	191		13,261
Total Food, Beverage & Tobacco			217,126
Health Care Equipment & Services—7.1%
Acadia Healthcare Co., Inc.1,2	46		1,348
AmerisourceBergen Corp.	99		7,872
Anthem, Inc.	157		45,056
Cardinal Health, Inc.	209		10,063
Centene Corp.2	248		13,169
Cigna Corp.	234		37,632
Cooper Cos., Inc. (The)	10		2,962
	Shares		Value
Health Care Equipment & Services (Continued)
Covetrus, Inc.1,2	30	$	955
CVS Health Corp.	709		38,236
DaVita, Inc.2	81		4,397
Encompass Health Corp.	43		2,511
HCA Healthcare, Inc.	183		23,860
Henry Schein, Inc.1,2	76		4,568
Hill-Rom Holdings, Inc.	15		1,588
Hologic, Inc.1,2	66		3,194
Humana, Inc.	86		22,876
Laboratory Corp. of America Holdings2	38		5,813
McKesson Corp.	127		14,867
MEDNAX, Inc.2	51		1,386
Molina Healthcare, Inc.2	31		4,401
Quest Diagnostics, Inc.	53		4,766
STERIS PLC	19		2,433
UnitedHealth Group, Inc.	392		96,926
Universal Health Services, Inc., Class B	50		6,689
Varian Medical Systems, Inc.2	15		2,126
Veeva Systems, Inc., Class A2	16		2,030
WellCare Health Plans, Inc.1,2	28		7,553
West Pharmaceutical Services, Inc.	14		1,543
Total Health Care Equipment & Services			370,820
Household & Personal Products—2.9%
Church & Dwight Co., Inc.	67		4,772
Clorox Co. (The)	38		6,097
Energizer Holdings, Inc.1	21		944
Herbalife Nutrition Ltd.1,2	38		2,014
Kimberly-Clark Corp.	155		19,205
Nu Skin Enterprises, Inc., Class A	18		861
Procter & Gamble Co. (The)	1,114		115,912
Spectrum Brands Holdings, Inc.1	14		767
Total Household & Personal Products			150,572
Insurance—5.2%
Aflac, Inc.	485		24,250
Alleghany Corp.2	4		2,450
Allstate Corp. (The)	229		21,567
American Financial Group, Inc.	45		4,329
Arch Capital Group Ltd.2	180		5,818
Arthur J. Gallagher & Co.	63		4,920
Assurant, Inc.	33		3,132
Assured Guaranty Ltd.	72		3,199
Athene Holding Ltd., Class A2	96		3,917
Brighthouse Financial, Inc.2	61		2,214
Brown & Brown, Inc.	54		1,594
Chubb Ltd.	206		28,856
Cincinnati Financial Corp.	64		5,498
Everest Re Group Ltd.	22		4,751
Fidelity National Financial, Inc.	129		4,715
First American Financial Corp.	61		3,142
Hanover Insurance Group, Inc. (The)	25		2,854
Lincoln National Corp.	102		5,987
Loews Corp.	178		8,532
MetLife, Inc.	615		26,181
Old Republic International Corp.	171		3,577
Principal Financial Group, Inc.1	196		9,837
Progressive Corp. (The)	275		19,825
Prudential Financial, Inc.	302		27,748

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 1000^® Value Factor ETF

	Shares		Value
Insurance (Continued)
Reinsurance Group of America, Inc.	44	$	6,247
RenaissanceRe Holdings Ltd.	15		2,152
Torchmark Corp.	71		5,818
Travelers Cos., Inc. (The)	150		20,574
Unum Group	143		4,838
W.R. Berkley Corp.1	46		3,897
White Mountains Insurance Group Ltd.	2		1,851
Total Insurance			274,270
Materials—3.3%
Albemarle Corp.1	24		1,967
Alcoa Corp.1,2	112		3,154
AptarGroup, Inc.	19		2,021
Ashland Global Holdings, Inc.	17		1,328
Avery Dennison Corp.	37		4,181
Axalta Coating Systems Ltd.2	63		1,588
Ball Corp.	173		10,010
Bemis Co., Inc.1	39		2,164
Berry Global Group, Inc.2	84		4,525
Cabot Corp.	31		1,290
Celanese Corp.	46		4,536
CF Industries Holdings, Inc.	85		3,475
Chemours Co. (The)	97		3,604
Crown Holdings, Inc.2	87		4,748
Domtar Corp.	27		1,341
Eagle Materials, Inc.	12		1,012
Eastman Chemical Co.	78		5,919
FMC Corp.	39		2,996
Freeport-McMoRan, Inc.	900		11,601
Graphic Packaging Holding Co.	165		2,084
Huntsman Corp.	144		3,239
International Flavors & Fragrances, Inc.	20		2,576
International Paper Co.	199		9,208
LyondellBasell Industries NV, Class A	202		16,984
Mosaic Co. (The)	143		3,905
Newmont Mining Corp.	187		6,689
Nucor Corp.	150		8,752
Olin Corp.1	90		2,083
Owens-Illinois, Inc.	112		2,126
Packaging Corp. of America	38		3,776
PPG Industries, Inc.	104		11,738
Reliance Steel & Aluminum Co.	41		3,701
RPM International, Inc.1	44		2,554
Scotts Miracle-Gro Co., (The)1	15		1,179
Sealed Air Corp.	51		2,349
Silgan Holdings, Inc.	49		1,452
Sonoco Products Co.1	40		2,461
Steel Dynamics, Inc.	102		3,597
United States Steel Corp.1	118		2,300
Westlake Chemical Corp.	16		1,086
WestRock Co.	146		5,599
WR Grace & Co.	18		1,405
Total Materials			172,303
Media & Entertainment—5.2%
AMC Networks, Inc., Class A1,2	30		1,703
CBS Corp., Class B	114		5,418
Charter Communications, Inc., Class A2	100		34,691
Cinemark Holdings, Inc.1	61		2,439
	Shares		Value
Media & Entertainment (Continued)
Comcast Corp., Class A	2,715	$	108,546
Discovery, Inc., Class A1,2	72		1,946
Discovery, Inc., Class C2	98		2,491
DISH Network Corp., Class A1,2	147		4,658
Fox Corp., Class B2	45		1,615
IAC/InterActiveCorp2	19		3,992
Interpublic Group of Cos., Inc. (The)	214		4,496
Liberty Broadband Corp., Class C2	33		3,027
Liberty Media Corp.-Liberty SiriusXM, Class A2	28		1,069
Liberty Media Corp.-Liberty SiriusXM, Class C2	56		2,141
Lions Gate Entertainment Corp., Class B	51		770
Live Nation Entertainment, Inc.1,2	44		2,796
Omnicom Group, Inc.1	138		10,073
Sirius XM Holdings, Inc.1	248		1,406
Take-Two Interactive Software, Inc.2	13		1,227
Viacom, Inc., Class B	245		6,877
Walt Disney Co. (The)	651		72,281
Total Media & Entertainment			273,662
Pharmaceuticals, Biotechnology & Life Sciences—3.2%
Amgen, Inc.	272		51,675
Biogen, Inc.2	70		16,547
Catalent, Inc.2	30		1,218
Celgene Corp.2	310		29,245
Charles River Laboratories International, Inc.2	13		1,888
Gilead Sciences, Inc.	806		52,398
Jazz Pharmaceuticals PLC2	14		2,001
Mylan NV2	227		6,433
PerkinElmer, Inc.1	26		2,505
Perrigo Co. PLC1	32		1,541
United Therapeutics Corp.2	24		2,817
Total Pharmaceuticals, Biotechnology & Life Sciences			168,268
Real Estate—1.4%
Alexandria Real Estate Equities, Inc.	11		1,568
Apple Hospitality REIT, Inc.	71		1,157
Brixmor Property Group, Inc.	136		2,498
Camden Property Trust	15		1,522
CBRE Group, Inc., Class A2	136		6,725
Duke Realty Corp.	57		1,743
EPR Properties	23		1,769
Equity LifeStyle Properties, Inc.	13		1,486
Extra Space Storage, Inc.	25		2,548
Federal Realty Investment Trust	12		1,654
Gaming and Leisure Properties, Inc.	61		2,353
HCP, Inc.	126		3,944
Highwoods Properties, Inc.	25		1,169
Hospitality Properties Trust	70		1,842
Host Hotels & Resorts, Inc.	218		4,120
Iron Mountain, Inc.1	74		2,624
Jones Lang LaSalle, Inc.	26		4,009
Kimco Realty Corp.	129		2,386
Lamar Advertising Co., Class A1	25		1,982
Liberty Property Trust	31		1,501
Macerich Co. (The)1	21		910
Medical Properties Trust, Inc.	114		2,110
Mid-America Apartment Communities, Inc.	23		2,515
National Retail Properties, Inc.	30		1,662

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 1000^® Value Factor ETF

	Shares		Value
Real Estate (Continued)
Omega Healthcare Investors, Inc.	45	$	1,717
Outfront Media, Inc.	59		1,381
Park Hotels & Resorts, Inc.	76		2,362
Realogy Holdings Corp.1	88		1,003
Regency Centers Corp.	21		1,417
Retail Properties of America, Inc., Class A	108		1,317
Senior Housing Properties Trust	76		895
SL Green Realty Corp.	14		1,259
UDR, Inc.	33		1,500
VEREIT, Inc.	207		1,733
Weingarten Realty Investors	50		1,469
WP Carey, Inc.	25		1,958
Total Real Estate			73,808
Retailing—5.1%
Advance Auto Parts, Inc.	30		5,116
AutoNation, Inc.1,2	38		1,357
AutoZone, Inc.2	14		14,338
Best Buy Co., Inc.	164		11,654
Burlington Stores, Inc.1,2	21		3,290
CarMax, Inc.1,2	79		5,514
Dick’s Sporting Goods, Inc.1	54		1,988
Dollar General Corp.	137		16,344
Dollar Tree, Inc.2	130		13,655
eBay, Inc.	334		12,405
Expedia Group, Inc.1	42		4,998
Foot Locker, Inc.	74		4,485
Gap, Inc. (The)	146		3,822
Genuine Parts Co.	75		8,402
Kohl's Corp.	114		7,840
L Brands, Inc.	158		4,358
LKQ Corp.2	137		3,888
Lowe's Cos., Inc.	361		39,519
Macy's, Inc.	212		5,094
Michaels Cos., Inc. (The)1,2	75		857
Nordstrom, Inc.1	81		3,595
O'Reilly Automotive, Inc.2	28		10,872
Penske Automotive Group, Inc.1	25		1,116
Pool Corp.1	9		1,485
Qurate Retail, Inc.2	151		2,413
Ross Stores, Inc.	122		11,358
Target Corp.	373		29,937
TJX Cos., Inc. (The)	440		23,412
Tractor Supply Co.	53		5,181
Ulta Beauty, Inc.2	16		5,580
Urban Outfitters, Inc.2	30		889
Williams-Sonoma, Inc.1	51		2,870
Total Retailing			267,632
Semiconductors & Semiconductor Equipment—4.9%
Applied Materials, Inc.	622		24,669
Cypress Semiconductor Corp.	81		1,209
First Solar, Inc.1,2	44		2,325
Intel Corp.	2,822		151,541
KLA-Tencor Corp.	72		8,598
Marvell Technology Group Ltd.	170		3,381
Micron Technology, Inc.2	980		40,503
MKS Instruments, Inc.	28		2,605
ON Semiconductor Corp.2	271		5,574
	Shares		Value
Semiconductors & Semiconductor Equipment (Continued)
Qorvo, Inc.2	42	$	3,013
Skyworks Solutions, Inc.	101		8,331
Teradyne, Inc.	122		4,860
Versum Materials, Inc.	29		1,459
Total Semiconductors & Semiconductor Equipment			258,068
Software & Services—4.4%
Alliance Data Systems Corp.	32		5,599
Amdocs Ltd.	74		4,004
Aspen Technology, Inc.2	14		1,460
Booz Allen Hamilton Holding Corp.	62		3,605
Cadence Design Systems, Inc.2	54		3,430
CDK Global, Inc.	48		2,823
Conduent, Inc.2	86		1,189
CoreLogic, Inc.2	26		969
DXC Technology Co.	304		19,550
EPAM Systems, Inc.2	12		2,030
Euronet Worldwide, Inc.1,2	18		2,567
Fair Isaac Corp.2	10		2,716
First Data Corp., Class A2	179		4,702
Fortinet, Inc.2	33		2,771
Gartner, Inc.1,2	12		1,820
Genpact Ltd.	50		1,759
GoDaddy, Inc., Class A2	20		1,504
International Business Machines Corp.	909		128,260
Jack Henry & Associates, Inc.	11		1,526
Leidos Holdings, Inc.	100		6,409
LogMeIn, Inc.	11		881
Manhattan Associates, Inc.1,2	25		1,378
PTC, Inc.2	13		1,198
Sabre Corp.	101		2,160
Splunk, Inc.1,2	11		1,371
Square, Inc., Class A1,2	25		1,873
SS&C Technologies Holdings, Inc.	46		2,930
Symantec Corp.	287		6,598
Teradata Corp.2	46		2,008
Tyler Technologies, Inc.2	6		1,226
Ultimate Software Group, Inc. (The)2	4		1,320
VMware, Inc., Class A1	21		3,791
Western Union Co. (The)	163		3,011
Workday, Inc., Class A1,2	12		2,314
Total Software & Services			230,752
Technology Hardware & Equipment—2.8%
ARRIS International PLC2	159		5,026
Arrow Electronics, Inc.2	56		4,315
Avnet, Inc.	55		2,385
CDW Corp.	120		11,564
Cognex Corp.1	25		1,272
Coherent, Inc.1,2	10		1,417
CommScope Holding Co., Inc.2	149		3,238
EchoStar Corp., Class A2	34		1,239
F5 Networks, Inc.2	26		4,080
FLIR Systems, Inc.	24		1,142
Hewlett Packard Enterprise Co.	1,733		26,740
HP, Inc.	1,733		33,672
IPG Photonics Corp.1,2	5		759
Jabil, Inc.	116		3,084

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 1000^® Value Factor ETF

	Shares		Value
Technology Hardware & Equipment (Continued)
Juniper Networks, Inc.	310	$	8,206
Keysight Technologies, Inc.2	23		2,006
Littelfuse, Inc.	5		912
Motorola Solutions, Inc.	84		11,795
NCR Corp.1,2	133		3,630
Trimble, Inc.1,2	52		2,101
Western Digital Corp.	226		10,862
Xerox Corp.	125		3,998
Zebra Technologies Corp., Class A2	11		2,305
Total Technology Hardware & Equipment			145,748
Telecommunication Services—5.7%
AT&T, Inc.	4,174		130,897
CenturyLink, Inc.1	568		6,810
Sprint Corp.2	439		2,480
Telephone & Data Systems, Inc.	62		1,905
T-Mobile US, Inc.2	189		13,060
Verizon Communications, Inc.	2,355		139,251
Zayo Group Holdings, Inc.2	51		1,450
Total Telecommunication Services			295,853
Transportation—2.4%
Alaska Air Group, Inc.1	83		4,658
AMERCO	4		1,486
American Airlines Group, Inc.1	292		9,274
C.H. Robinson Worldwide, Inc.	61		5,306
Copa Holdings SA, Class A	21		1,693
Delta Air Lines, Inc.	434		22,416
Expeditors International of Washington, Inc.	45		3,416
FedEx Corp.	118		21,406
Genesee & Wyoming, Inc., Class A2	23		2,004
JB Hunt Transport Services, Inc.	31		3,140
JetBlue Airways Corp.2	219		3,583
Kansas City Southern	36		4,175
Kirby Corp.1,2	30		2,253
Landstar System, Inc.	12		1,313
Macquarie Infrastructure Corp.	43		1,772
Old Dominion Freight Line, Inc.	12		1,733
Ryder System, Inc.	36		2,232
Southwest Airlines Co.	315		16,352
United Continental Holdings, Inc.2	173		13,802
XPO Logistics, Inc.1,2	49		2,633
Total Transportation			124,647
Utilities—6.8%
AES Corp.	373		6,744
Alliant Energy Corp.	92		4,336
Ameren Corp.	122		8,973
American Electric Power Co., Inc.	247		20,686
American Water Works Co., Inc.	57		5,943
Aqua America, Inc.1	41		1,494
Atmos Energy Corp.	35		3,603
CenterPoint Energy, Inc.1	264		8,105
CMS Energy Corp.	138		7,664
Consolidated Edison, Inc.	210		17,810
Dominion Energy, Inc.	320		24,531
DTE Energy Co.	99		12,349
Duke Energy Corp.	346		31,140
Edison International	188		11,641
Entergy Corp.	115		10,997
Eversource Energy	144		10,217
	Shares		Value
Utilities (Continued)
Exelon Corp.	650	$	32,584
FirstEnergy Corp.	190		7,906
Hawaiian Electric Industries, Inc.1	54		2,202
MDU Resources Group, Inc.	89		2,299
National Fuel Gas Co.	43		2,621
NiSource, Inc.1	104		2,981
NRG Energy, Inc.	187		7,944
OGE Energy Corp.	86		3,708
PG&E Corp.2	353		6,283
Pinnacle West Capital Corp.	54		5,161
PPL Corp.1	408		12,950
Public Service Enterprise Group, Inc.	193		11,466
Sempra Energy	127		15,984
Southern Co. (The)	413		21,344
UGI Corp.	87		4,822
Vistra Energy Corp.	132		3,436
WEC Energy Group, Inc.	132		10,439
Xcel Energy, Inc.	257		14,446
Total Utilities			354,809
Total Common Stocks
(Cost $5,116,296)			5,224,329
Money Market Fund—0.1%
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%3
(Cost $6,396)	6,396		6,396
Investment of Cash Collateral for Securities Loaned—0.1%
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%3
(Cost $3,605)	3,605		3,605
Total Investments—100.0% (Cost $5,126,297)			5,234,330
Other Assets in Excess of Liabilities—0.0%4			1,570
Net Assets—100.0%		$	5,235,900

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 1000^® Value Factor ETF

PLC	-	Public Limited Company
REIT	-	Real Estate Investment Trust

1.	All or a portion of the security was on loan. The aggregate value of the securities on loan was $307,614; total value of the collateral held by the Fund was $314,204. The total value of the collateral includes non-cash U.S. Treasury securities collateral having a value of $310,599.
2.	Non-income producing security.
3.	Rate shown represents annualized 7-day yield as of March 31, 2019.
4.	Less than 0.05%.

Schedule of Investments March 31, 2019 Unaudited

Oppenheimer Russell 1000^® Low Volatility Factor ETF

	Shares		Value
COMMON STOCKS—99.8%
Automobiles & Components—0.3%
Ford Motor Co.		874	$	7,674
Garrett Motion, Inc.1		26		383
General Motors Co.		292		10,833
Total Automobiles & Components				18,890
Banks—6.3%
Bank of America Corp.		2,171		59,898
BB&T Corp.2		245		11,400
Citigroup, Inc.		644		40,069
Commerce Bancshares, Inc.		31		1,800
Fifth Third Bancorp		174		4,388
First Republic Bank2		43		4,320
JPMorgan Chase & Co.		1,021		103,356
M&T Bank Corp.		45		7,066
People's United Financial, Inc.2		116		1,907
PNC Financial Services Group, Inc. (The)		148		18,154
SunTrust Banks, Inc.		124		7,347
U.S. Bancorp		532		25,637
Wells Fargo & Co.		1,332		64,362
Total Banks				349,704
Capital Goods—7.8%
3M Co.		196		40,725
AMETEK, Inc.		77		6,389
Boeing Co. (The)		145		55,306
Caterpillar, Inc.		135		18,291
Cummins, Inc.		38		5,999
Deere & Co.		90		14,386
Eaton Corp. PLC		116		9,345
Emerson Electric Co.		181		12,393
Fortive Corp.		98		8,221
General Dynamics Corp.		86		14,558
General Electric Co.		2,589		25,864
Harris Corp.		34		5,430
Honeywell International, Inc.		264		41,955
IDEX Corp.		25		3,794
Illinois Tool Works, Inc.		110		15,788
Ingersoll-Rand PLC		69		7,449
Johnson Controls International PLC		250		9,235
L3 Technologies, Inc.		22		4,540
Lockheed Martin Corp.		84		25,213
Northrop Grumman Corp.		51		13,750
PACCAR, Inc.		92		6,269
Parker-Hannifin Corp.		34		5,835
Raytheon Co.		90		16,387
Resideo Technologies, Inc.1		43		829
Rockwell Automation, Inc.		35		6,141
Roper Technologies, Inc.		33		11,285
Snap-on, Inc.2		17		2,661
Stanley Black & Decker, Inc.		47		6,400
Toro Co. (The)		35		2,409
United Technologies Corp.		272		35,058
Total Capital Goods				431,905
Commercial & Professional Services—0.9%
Cintas Corp.		29		5,861
Copart, Inc.1,2		58		3,514
IHS Markit Ltd.1		119		6,471
KAR Auction Services, Inc.		42		2,155
Republic Services, Inc.		79		6,350
		Shares		Value
Commercial & Professional Services (Continued)
Verisk Analytics, Inc.		51	$	6,783
Waste Management, Inc.		152		15,795
Total Commercial & Professional Services				46,929
Consumer Durables & Apparel—0.7%
NIKE, Inc., Class B		369		31,074
VF Corp.		85		7,387
Total Consumer Durables & Apparel				38,461
Consumer Services—2.1%
Aramark		75		2,216
Carnival Corp.		105		5,326
Hilton Worldwide Holdings, Inc.		71		5,901
Marriott International, Inc., Class A		84		10,507
McDonald's Corp.		280		53,172
Starbucks Corp.		434		32,264
Yum! Brands, Inc.		87		8,683
Total Consumer Services				118,069
Diversified Financials—5.9%
AGNC Investment Corp.		139		2,502
American Express Co.		212		23,172
Annaly Capital Management, Inc.		392		3,916
Bank of New York Mellon Corp. (The)		280		14,120
Berkshire Hathaway, Inc., Class B1		704		141,427
BlackRock, Inc.		35		14,958
Capital One Financial Corp.		129		10,538
Cboe Global Markets, Inc.		32		3,054
CME Group, Inc.		105		17,281
Discover Financial Services		101		7,187
FactSet Research Systems, Inc.2		12		2,979
Goldman Sachs Group, Inc. (The)		99		19,007
Intercontinental Exchange, Inc.		175		13,324
Moody's Corp.		50		9,054
MSCI, Inc.		26		5,170
Nasdaq, Inc.		38		3,325
Northern Trust Corp.		58		5,244
S&P Global, Inc.		77		16,212
Starwood Property Trust, Inc.		90		2,011
State Street Corp.		91		5,989
T. Rowe Price Group, Inc.		72		7,209
Total Diversified Financials				327,679
Energy—3.7%
Chevron Corp.		534		65,778
Exxon Mobil Corp.		1,410		113,928
Occidental Petroleum Corp.		199		13,174
Schlumberger Ltd.		326		14,204
Total Energy				207,084
Food & Staples Retailing—1.9%
Costco Wholesale Corp.		143		34,626
Sysco Corp.		158		10,548
US Foods Holding Corp.1		66		2,304
Walgreens Boots Alliance, Inc.		220		13,920
Walmart, Inc.		474		46,229
Total Food & Staples Retailing				107,627
Food, Beverage & Tobacco—5.3%
Altria Group, Inc.		636		36,525
Archer-Daniels-Midland Co.		143		6,168
Brown-Forman Corp., Class B2		88		4,645
Coca-Cola Co. (The)		1,386		64,948
Conagra Brands, Inc.		116		3,218
Constellation Brands, Inc., Class A		51		8,942
General Mills, Inc.		199		10,298

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 1000^® Low Volatility Factor ETF

	Shares		Value
Food, Beverage & Tobacco (Continued)
Hershey Co. (The)	46	$	5,282
Hormel Foods Corp.	83		3,715
JM Smucker Co. (The)2	35		4,077
Kellogg Co.	83		4,762
Lamb Weston Holdings, Inc.	46		3,447
McCormick & Co., Inc.	41		6,176
Mondelez International, Inc., Class A	468		23,363
PepsiCo, Inc.	514		62,991
Philip Morris International, Inc.	479		42,339
Total Food, Beverage & Tobacco			290,896
Health Care Equipment & Services—6.5%
Abbott Laboratories	526		42,048
Anthem, Inc.	73		20,950
Baxter International, Inc.	160		13,010
Becton Dickinson and Co.	87		21,727
Boston Scientific Corp.1	366		14,047
Cerner Corp.1	83		4,748
Cigna Corp.	96		15,439
Covetrus, Inc.1,2	20		637
CVS Health Corp.	387		20,871
Danaher Corp.	213		28,120
DENTSPLY SIRONA, Inc.	66		3,273
HCA Healthcare, Inc.	69		8,996
Henry Schein, Inc.1,2	50		3,005
Laboratory Corp. of America Holdings1	33		5,048
Medtronic PLC	461		41,988
Quest Diagnostics, Inc.	42		3,777
Stryker Corp.	116		22,912
Teleflex, Inc.	14		4,230
UnitedHealth Group, Inc.	287		70,964
Varian Medical Systems, Inc.1	28		3,968
Zimmer Biomet Holdings, Inc.	58		7,407
Total Health Care Equipment & Services			357,165
Household & Personal Products—2.8%
Church & Dwight Co., Inc.	85		6,055
Clorox Co. (The)	45		7,221
Colgate-Palmolive Co.	299		20,493
Estee Lauder Cos., Inc., (The), Class A	71		11,754
Kimberly-Clark Corp.	120		14,868
Procter & Gamble Co. (The)	918		95,518
Total Household & Personal Products			155,909
Insurance—3.7%
Aflac, Inc.	276		13,800
Alleghany Corp.1	5		3,062
Allstate Corp. (The)	121		11,396
American Financial Group, Inc.	26		2,501
American International Group, Inc.	286		12,315
Aon PLC	83		14,168
Arch Capital Group Ltd.1	135		4,363
Arthur J. Gallagher & Co.	63		4,920
Brown & Brown, Inc.	80		2,361
Chubb Ltd.	168		23,533
Cincinnati Financial Corp.	52		4,467
Everest Re Group Ltd.	13		2,808
Fidelity National Financial, Inc.	78		2,851
Hartford Financial Services Group, Inc. (The)	118		5,867
Loews Corp.	98		4,697
Markel Corp.1	5		4,981
	Shares		Value
Insurance (Continued)
Marsh & McLennan Cos., Inc.	182	$	17,090
MetLife, Inc.	202		8,599
Principal Financial Group, Inc.2	76		3,814
Progressive Corp. (The)	200		14,418
Prudential Financial, Inc.	109		10,015
Reinsurance Group of America, Inc.	21		2,982
RenaissanceRe Holdings Ltd.	14		2,009
Torchmark Corp.	37		3,032
Travelers Cos., Inc. (The)	93		12,756
W.R. Berkley Corp.2	33		2,796
Willis Towers Watson PLC	44		7,729
Total Insurance			203,330
Materials—2.1%
Air Products & Chemicals, Inc.	69		13,176
AptarGroup, Inc.	25		2,660
Avery Dennison Corp.	27		3,051
Ball Corp.	105		6,075
DowDuPont, Inc.	540		28,787
Ecolab, Inc.	87		15,359
International Flavors & Fragrances, Inc.	25		3,220
International Paper Co.	110		5,090
Linde PLC	96		16,889
PPG Industries, Inc.	77		8,691
Sherwin-Williams Co. (The)	25		10,768
Total Materials			113,766
Media & Entertainment—5.7%
Alphabet, Inc., Class A1	75		88,267
Alphabet, Inc., Class C1	79		92,692
Comcast Corp., Class A	1,397		55,852
Fox Corp., Class A1	95		3,487
Fox Corp., Class B1	46		1,650
Omnicom Group, Inc.2	73		5,328
Walt Disney Co. (The)	623		69,172
Total Media & Entertainment			316,448
Pharmaceuticals, Biotechnology & Life Sciences—8.1%
Agilent Technologies, Inc.	93		7,475
Amgen, Inc.	161		30,587
Bristol-Myers Squibb Co.	355		16,937
Eli Lilly & Co.	297		38,539
IQVIA Holdings, Inc.1	44		6,330
Johnson & Johnson	960		134,198
Merck & Co., Inc.	849		70,611
Mettler-Toledo International, Inc.1	8		5,784
Pfizer, Inc.	1,968		83,581
Thermo Fisher Scientific, Inc.	128		35,036
Waters Corp.1	23		5,789
Zoetis, Inc.	137		13,792
Total Pharmaceuticals, Biotechnology & Life Sciences			448,659
Real Estate—3.6%
Alexandria Real Estate Equities, Inc.	37		5,275
American Tower Corp.	141		27,785
AvalonBay Communities, Inc.	46		9,234
Boston Properties, Inc.	50		6,694
Camden Property Trust	28		2,842
Crown Castle International Corp.	136		17,408
Digital Realty Trust, Inc.	53		6,307
Duke Realty Corp.	109		3,333

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 1000^® Low Volatility Factor ETF

	Shares		Value
Real Estate (Continued)
Equinix, Inc.	22	$	9,970
Equity LifeStyle Properties, Inc.	28		3,200
Equity Residential	117		8,812
Essex Property Trust, Inc.	21		6,074
Federal Realty Investment Trust	24		3,308
Invitation Homes, Inc.	99		2,409
Mid-America Apartment Communities, Inc.	35		3,827
Park Hotels & Resorts, Inc.	66		2,051
Prologis, Inc.	164		11,800
Public Storage	47		10,236
Realty Income Corp.	84		6,179
Regency Centers Corp.	54		3,644
Simon Property Group, Inc.	99		18,039
Sun Communities, Inc.	24		2,844
UDR, Inc.	84		3,819
Ventas, Inc.	96		6,126
Vornado Realty Trust	54		3,642
Welltower, Inc.	107		8,303
Weyerhaeuser Co.	205		5,400
WP Carey, Inc.	36		2,820
Total Real Estate			201,381
Retailing—2.8%
AutoZone, Inc.1	8		8,193
Genuine Parts Co.	44		4,929
Home Depot, Inc. (The)	379		72,726
Lowe's Cos., Inc.	238		26,054
Ross Stores, Inc.	101		9,403
Target Corp.	127		10,193
TJX Cos., Inc. (The)	408		21,710
Total Retailing			153,208
Semiconductors & Semiconductor Equipment—1.9%
Analog Devices, Inc.	100		10,527
Intel Corp.	1,226		65,836
Texas Instruments, Inc.	275		29,170
Total Semiconductors & Semiconductor Equipment			105,533
Software & Services—12.3%
Accenture PLC, Class A	208		36,612
Adobe, Inc.1	114		30,380
Amdocs Ltd.	50		2,705
ANSYS, Inc.1	24		4,385
Automatic Data Processing, Inc.	148		23,642
Broadridge Financial Solutions, Inc.	38		3,940
Cognizant Technology Solutions Corp., Class A	138		9,998
Fidelity National Information Services, Inc.	107		12,102
Fiserv, Inc.1,2	140		12,359
International Business Machines Corp.	299		42,189
Intuit, Inc.	70		18,299
Jack Henry & Associates, Inc.	27		3,746
Mastercard, Inc., Class A	290		68,280
Microsoft Corp.	2,074		244,608
Oracle Corp.	859		46,137
Paychex, Inc.	108		8,662
Synopsys, Inc.1	52		5,988
Total System Services, Inc.	47		4,465
VeriSign, Inc.1	31		5,628
Visa, Inc., Class A2	559		87,310
	Shares		Value
Software & Services (Continued)
Worldpay, Inc., Class A1	76	$	8,626
Total Software & Services			680,061
Technology Hardware & Equipment—6.1%
Amphenol Corp., Class A	98		9,255
Apple, Inc.	1,315		249,784
Cisco Systems, Inc.	1,321		71,321
Motorola Solutions, Inc.	48		6,740
Total Technology Hardware & Equipment			337,100
Telecommunication Services—2.9%
AT&T, Inc.	2,488		78,024
Verizon Communications, Inc.	1,368		80,890
Total Telecommunication Services			158,914
Transportation—1.8%
C.H. Robinson Worldwide, Inc.	41		3,566
Expeditors International of Washington, Inc.	54		4,099
FedEx Corp.	70		12,699
JB Hunt Transport Services, Inc.	26		2,633
Norfolk Southern Corp.	67		12,522
Union Pacific Corp.	219		36,617
United Parcel Service, Inc., Class B	226		25,253
Total Transportation			97,389
Utilities—4.6%
Alliant Energy Corp.	79		3,723
Ameren Corp.	81		5,958
American Electric Power Co., Inc.	167		13,986
American Water Works Co., Inc.	62		6,464
Aqua America, Inc.2	60		2,186
Atmos Energy Corp.	37		3,808
CenterPoint Energy, Inc.2	132		4,052
CMS Energy Corp.	96		5,332
Consolidated Edison, Inc.	107		9,075
Dominion Energy, Inc.	217		16,635
DTE Energy Co.	63		7,859
Duke Energy Corp.	243		21,870
Edison International	100		6,192
Entergy Corp.	59		5,642
Evergy, Inc.	91		5,283
Eversource Energy	107		7,592
Exelon Corp.	286		14,337
FirstEnergy Corp.	142		5,909
NextEra Energy, Inc.	161		31,124
NiSource, Inc.2	113		3,239
PG&E Corp.1	151		2,688
Pinnacle West Capital Corp.	44		4,205
PPL Corp.2	230		7,300
Public Service Enterprise Group, Inc.	165		9,803
Sempra Energy	89		11,202
Southern Co. (The)	367		18,967
UGI Corp.	56		3,103
WEC Energy Group, Inc.	107		8,462
Xcel Energy, Inc.	177		9,949
Total Utilities			255,945
Total Common Stocks
(Cost $4,966,787)			5,522,052

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 1000^® Low Volatility Factor ETF

	Shares		Value
Money Market Fund—0.1%
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%3
(Cost $6,149)	6,149	$	6,149
Total Investments—99.9% (Cost $4,972,936)			5,528,201
Other Assets in Excess of Liabilities—0.1%			5,101
Net Assets—100.0%		$	5,533,302

PLC - Public Limited Company

1.	Non-income producing security.
2.	All or a portion of the security was on loan. The aggregate value of the securities on loan was $162,266; total value of the collateral held by the Fund was $165,647. The total value of the collateral includes non-cash U.S. Treasury securities collateral having a value of $165,647.
3.	Rate shown represents annualized 7-day yield as of March 31, 2019.

Schedule of Investments March 31, 2019 Unaudited

Oppenheimer Russell 1000^® Size Factor ETF

	Shares		Value
COMMON STOCKS—99.8%
Automobiles & Components—0.9%
Adient PLC1		164	$	2,125
BorgWarner, Inc.		228		8,758
Gentex Corp.		378		7,817
Goodyear Tire & Rubber Co. (The)		347		6,298
Harley-Davidson, Inc.1		248		8,844
Lear Corp.		65		8,821
Thor Industries, Inc.		77		4,803
Visteon Corp.1,2		49		3,300
Total Automobiles & Components				50,766
Banks—3.5%
Associated Banc-Corp.		263		5,615
Bank of Hawaii Corp.1		70		5,521
Bank OZK1		190		5,506
BankUnited, Inc.		164		5,478
BOK Financial Corp.1		36		2,936
CIT Group, Inc.		192		9,210
Commerce Bancshares, Inc.1		134		7,780
Cullen/Frost Bankers, Inc.1		75		7,280
East West Bancorp, Inc.		159		7,627
F.N.B. Corp.1		516		5,470
First Citizens BancShares, Inc., Class A		12		4,886
First Hawaiian, Inc.		111		2,892
First Horizon National Corp.1		462		6,459
New York Community Bancorp, Inc.1		696		8,053
PacWest Bancorp		206		7,748
People's United Financial, Inc.1		483		7,940
Pinnacle Financial Partners, Inc.1		113		6,181
Popular, Inc.		158		8,237
Prosperity Bancshares, Inc.1		101		6,975
Signature Bank		72		9,221
Sterling Bancorp1		368		6,856
Synovus Financial Corp.		163		5,601
TCF Financial Corp.		261		5,400
Texas Capital Bancshares, Inc.2		86		4,695
TFS Financial Corp.		100		1,647
Umpqua Holdings Corp.		331		5,461
Webster Financial Corp.		132		6,688
Western Alliance Bancorp2		153		6,279
Wintrust Financial Corp.		84		5,656
Zions Bancorp NA		205		9,309
Total Banks				188,607
Capital Goods—9.8%
A.O. Smith Corp.		166		8,851
Acuity Brands, Inc.		63		7,561
AECOM2		239		7,091
AGCO Corp.		110		7,651
Air Lease Corp.		152		5,221
Allegion PLC1		125		11,339
Allison Transmission Holdings, Inc.		188		8,445
Arconic, Inc.		566		10,816
Arcosa, Inc.		74		2,261
Armstrong World Industries, Inc.		77		6,115
BWX Technologies, Inc.		137		6,792
Carlisle Cos., Inc.		82		10,055
Colfax Corp.1,2		168		4,986
Crane Co.		77		6,516
Curtiss-Wright Corp.		65		7,367
		Shares		Value
Capital Goods (Continued)
Donaldson Co., Inc.1		205	$	10,262
Dover Corp.		155		14,539
Fastenal Co.1		254		16,335
Flowserve Corp.		195		8,802
Fluor Corp.		190		6,992
Fortune Brands Home & Security, Inc.		181		8,617
Gardner Denver Holdings, Inc.2		147		4,088
Gates Industrial Corp. PLC1,2		71		1,018
Graco, Inc.		225		11,142
HD Supply Holdings, Inc.2		252		10,924
HEICO Corp.1		46		4,364
HEICO Corp., Class A		98		8,238
Hexcel Corp.		125		8,645
Hubbell, Inc.1		79		9,320
Huntington Ingalls Industries, Inc.		49		10,153
IDEX Corp.		82		12,443
ITT, Inc.		148		8,584
Jacobs Engineering Group, Inc.		149		11,203
L3 Technologies, Inc.		64		13,208
Lennox International, Inc.		45		11,898
Lincoln Electric Holdings, Inc.		91		7,632
Masco Corp.		311		12,225
Middleby Corp. (The)1,2		85		11,053
MSC Industrial Direct Co., Inc., Class A		72		5,955
Nordson Corp.		80		10,602
nVent Electric PLC		248		6,691
Oshkosh Corp.		117		8,790
Owens Corning		147		6,927
Pentair PLC		205		9,125
Quanta Services, Inc.		238		8,982
Regal Beloit Corp.		73		5,977
Sensata Technologies Holding PLC2		203		9,139
Snap-on, Inc.1		69		10,800
Spirit AeroSystems Holdings, Inc., Class A		128		11,716
Teledyne Technologies, Inc.2		47		11,139
Terex Corp.		134		4,305
Timken Co. (The)		114		4,973
Toro Co. (The)		148		10,188
Trinity Industries, Inc.1		223		4,846
United Rentals, Inc.2		81		9,254
Univar, Inc.2		189		4,188
USG Corp.		118		5,109
Valmont Industries, Inc.		45		5,855
WABCO Holdings, Inc.2		74		9,755
Wabtec Corp.		99		7,298
Watsco, Inc.		46		6,588
Welbilt, Inc.1,2		228		3,735
WESCO International, Inc.2		92		4,877
Xylem, Inc.1		169		13,358
Total Capital Goods				532,924
Commercial & Professional Services—2.0%
ADT, Inc.		155		990
Clean Harbors, Inc.2		89		6,366
Copart, Inc.1,2		190		11,512
CoStar Group, Inc.2		33		15,392
Equifax, Inc.		106		12,561
KAR Auction Services, Inc.		179		9,185

Schedule of Investments March 31, 2019 Unaudited

Oppenheimer Russell 1000^® Size Factor ETF

	Shares		Value
Commercial & Professional Services (Continued)
ManpowerGroup, Inc.	100	$	8,269
Nielsen Holdings PLC	377		8,924
Robert Half International, Inc.	153		9,969
Rollins, Inc.1	151		6,285
Stericycle, Inc.1,2	123		6,694
TransUnion	174		11,630
Total Commercial & Professional Services			107,777
Consumer Durables & Apparel—3.9%
Brunswick Corp.	128		6,442
Capri Holdings Ltd.2	172		7,869
Carter’s, Inc.1	70		7,055
Columbia Sportswear Co.	44		4,584
D.R. Horton, Inc.	269		11,131
Garmin Ltd.	137		11,830
Hanesbrands, Inc.1	523		9,351
Hasbro, Inc.1	129		10,968
Leggett & Platt, Inc.1	195		8,233
Lululemon Athletica, Inc.2	93		15,240
Mattel, Inc.1,2	536		6,968
Mohawk Industries, Inc.2	51		6,434
Newell Brands, Inc.1	490		7,517
NVR, Inc.2	4		11,068
Polaris Industries, Inc.1	86		7,261
PulteGroup, Inc.	333		9,311
PVH Corp.	79		9,634
Ralph Lauren Corp.	72		9,337
Skechers U.S.A., Inc., Class A2	233		7,831
Tapestry, Inc.	284		9,227
Tempur Sealy International, Inc.1,2	82		4,729
Toll Brothers, Inc.	202		7,312
Under Armour, Inc., Class A2	304		6,426
Under Armour, Inc., Class C1,2	328		6,189
Whirlpool Corp.	76		10,100
Total Consumer Durables & Apparel			212,047
Consumer Services—3.8%
Aramark	278		8,215
Bright Horizons Family Solutions, Inc.2	83		10,550
Caesars Entertainment Corp.1,2	724		6,292
Chipotle Mexican Grill, Inc.2	25		17,758
Choice Hotels International, Inc.	54		4,198
Darden Restaurants, Inc.	130		15,791
Domino's Pizza, Inc.1	45		11,614
Dunkin' Brands Group, Inc.1	124		9,312
Extended Stay America, Inc.	364		6,534
frontdoor, Inc.2	101		3,476
Graham Holdings Co., Class B	8		5,465
Grand Canyon Education, Inc.2	77		8,817
H&R Block, Inc.	305		7,302
Hilton Grand Vacations, Inc.2	175		5,399
Hyatt Hotels Corp., Class A	75		5,443
Norwegian Cruise Line Holdings Ltd.2	204		11,212
Service Corp. International	270		10,840
ServiceMaster Global Holdings, Inc.2	174		8,126
Six Flags Entertainment Corp.	112		5,527
Vail Resorts, Inc.	45		9,779
Wendy’s Co. (The)1	309		5,528
Wyndham Destinations, Inc.	151		6,114
	Shares		Value
Consumer Services (Continued)
Wyndham Hotels & Resorts, Inc.	141	$	7,049
Yum China Holdings, Inc.	319		14,326
Total Consumer Services			204,667
Diversified Financials—4.6%
Affiliated Managers Group, Inc.	71		7,605
AGNC Investment Corp.	577		10,386
Ally Financial, Inc.	496		13,635
Annaly Capital Management, Inc.	1,182		11,808
AXA Equitable Holdings, Inc.	135		2,719
BGC Partners, Inc., Class A1	446		2,368
Cboe Global Markets, Inc.	117		11,166
Chimera Investment Corp.	313		5,866
Credit Acceptance Corp.2	15		6,779
Eaton Vance Corp.1	161		6,490
Evercore, Inc., Class A	64		5,824
FactSet Research Systems, Inc.	48		11,917
Interactive Brokers Group, Inc., Class A1	106		5,499
Invesco Ltd.	460		8,882
Jefferies Financial Group, Inc.	418		7,854
Lazard Ltd., Class A	165		5,963
Legg Mason, Inc.	143		3,914
LPL Financial Holdings, Inc.	125		8,706
MarketAxess Holdings, Inc.1	46		11,320
MFA Financial, Inc.	681		4,951
Morningstar, Inc.	28		3,528
MSCI, Inc.	74		14,714
Nasdaq, Inc.	95		8,311
Navient Corp.	434		5,021
New Residential Investment Corp.	478		8,083
OneMain Holdings, Inc.	121		3,842
Raymond James Financial, Inc.	114		9,167
Santander Consumer USA Holdings, Inc.	160		3,381
SEI Investments Co.	147		7,681
SLM Corp.	715		7,086
Starwood Property Trust, Inc.	397		8,873
Two Harbors Investment Corp.	360		4,871
Virtu Financial, Inc., Class A1	67		1,591
Voya Financial, Inc.1	202		10,092
Total Diversified Financials			249,893
Energy—3.4%
Antero Resources Corp.1,2	344		3,038
Apache Corp.1	309		10,710
Apergy Corp.2	131		5,379
Baker Hughes a GE Co.1	386		10,700
Cabot Oil & Gas Corp.	512		13,363
Centennial Resource Development, Inc., Class A1,2	286		2,514
Cheniere Energy, Inc.2	171		11,690
Chesapeake Energy Corp.1,2	1,516		4,700
Cimarex Energy Co.	112		7,829
CNX Resources Corp.2	359		3,866
Continental Resources, Inc.2	42		1,880
Diamondback Energy, Inc.	186		18,885
EQT Corp.	249		5,164
Equitrans Midstream Corp.	199		4,334
Extraction Oil & Gas, Inc.2	191		808
Helmerich & Payne, Inc.	140		7,778

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 1000^® Size Factor ETF

	Shares		Value
Energy (Continued)
HollyFrontier Corp.	144	$	7,095
Kosmos Energy Ltd.	408		2,542
Murphy Oil Corp.1	245		7,178
Nabors Industries Ltd.1	600		2,064
Parsley Energy, Inc., Class A2	324		6,253
Patterson-UTI Energy, Inc.1	343		4,809
PBF Energy, Inc., Class A	167		5,200
QEP Resources, Inc.2	410		3,194
Range Resources Corp.	344		3,867
RPC, Inc.	95		1,084
SM Energy Co.1	192		3,358
Targa Resources Corp.	230		9,556
Transocean Ltd.2	621		5,409
Weatherford International PLC2	1,681		1,173
Whiting Petroleum Corp.1,2	139		3,633
WPX Energy, Inc.2	523		6,857
Total Energy			185,910
Food & Staples Retailing—0.4%
Casey's General Stores, Inc.1	62		7,984
Sprouts Farmers Market, Inc.1,2	254		5,471
US Foods Holding Corp.2	276		9,635
Total Food & Staples Retailing			23,090
Food, Beverage & Tobacco—2.7%
Brown-Forman Corp., Class A	23		1,177
Bunge Ltd.	169		8,969
Campbell Soup Co.	195		7,435
Conagra Brands, Inc.	431		11,956
Flowers Foods, Inc.1	287		6,119
Hain Celestial Group, Inc. (The)1,2	167		3,861
Hershey Co. (The)	127		14,583
Hormel Foods Corp.	179		8,012
Ingredion, Inc.	95		8,996
JM Smucker Co. (The)	113		13,164
Lamb Weston Holdings, Inc.	183		13,714
McCormick & Co., Inc.	122		18,377
Molson Coors Brewing Co., Class B	184		10,976
Post Holdings, Inc.2	99		10,831
TreeHouse Foods, Inc.1,2	108		6,971
Total Food, Beverage & Tobacco			145,141
Health Care Equipment & Services—5.3%
Acadia Healthcare Co., Inc.1,2	145		4,250
Cantel Medical Corp.	58		3,880
Chemed Corp.	23		7,362
Cooper Cos., Inc. (The)	52		15,401
Covetrus, Inc.1,2	65		2,070
DaVita, Inc.2	135		7,329
DENTSPLY SIRONA, Inc.	266		13,191
DexCom, Inc.1,2	116		13,816
Encompass Health Corp.	137		8,001
Henry Schein, Inc.1,2	163		9,798
Hill-Rom Holdings, Inc.	94		9,951
Hologic, Inc.1,2	294		14,230
ICU Medical, Inc.2	22		5,265
Insulet Corp.1,2	92		8,748
Integra LifeSciences Holdings Corp.2	106		5,906
Masimo Corp.2	68		9,403
MEDNAX, Inc.2	147		3,994
Molina Healthcare, Inc.2	96		13,628
	Shares		Value
Health Care Equipment & Services (Continued)
Penumbra, Inc.1,2	45	$	6,615
Premier, Inc., Class A2	113		3,897
Quest Diagnostics, Inc.	128		11,510
ResMed, Inc.	118		12,268
STERIS PLC	100		12,803
Teleflex, Inc.	44		13,295
Universal Health Services, Inc., Class B	94		12,574
Varian Medical Systems, Inc.2	107		15,164
Veeva Systems, Inc., Class A2	169		21,439
WellCare Health Plans, Inc.1,2	50		13,488
West Pharmaceutical Services, Inc.	99		10,910
Total Health Care Equipment & Services			290,186
Household & Personal Products—0.8%
Church & Dwight Co., Inc.	247		17,594
Coty, Inc., Class A1	566		6,509
Energizer Holdings, Inc.1	110		4,942
Herbalife Nutrition Ltd.1,2	136		7,207
Nu Skin Enterprises, Inc., Class A	94		4,499
Total Household & Personal Products			40,751
Insurance—4.6%
Alleghany Corp.2	18		11,023
American Financial Group, Inc.	81		7,793
American National Insurance Co.	13		1,571
Arch Capital Group Ltd.2	428		13,833
Arthur J. Gallagher & Co.	176		13,746
Assurant, Inc.	81		7,688
Assured Guaranty Ltd.	180		7,997
Athene Holding Ltd., Class A2	234		9,547
Axis Capital Holdings Ltd.	127		6,957
Brighthouse Financial, Inc.2	188		6,823
Brown & Brown, Inc.	295		8,705
Cincinnati Financial Corp.	156		13,400
CNA Financial Corp.	26		1,127
Erie Indemnity Co., Class A	37		6,605
Everest Re Group Ltd.	47		10,150
Fidelity National Financial, Inc.	290		10,600
First American Financial Corp.	157		8,086
Hanover Insurance Group, Inc. (The)	69		7,878
Lincoln National Corp.	185		10,860
Loews Corp.	223		10,688
Markel Corp.2	11		10,959
Mercury General Corp.1	48		2,403
Old Republic International Corp.	397		8,305
Reinsurance Group of America, Inc.	73		10,365
RenaissanceRe Holdings Ltd.	61		8,753
Torchmark Corp.	119		9,752
Unum Group	277		9,371
W.R. Berkley Corp.1	110		9,319
White Mountains Insurance Group Ltd.	7		6,478
Total Insurance			250,782
Materials—6.2%
Albemarle Corp.	128		10,493
Alcoa Corp.1,2	221		6,223
AptarGroup, Inc.	90		9,575
Ashland Global Holdings, Inc.	96		7,501
Avery Dennison Corp.	102		11,526
Axalta Coating Systems Ltd.2	309		7,790
Ball Corp.	326		18,862

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 1000^® Size Factor ETF

	Shares		Value
Materials (Continued)
Bemis Co., Inc.1	149	$	8,267
Berry Global Group, Inc.2	202		10,882
Cabot Corp.	100		4,163
Celanese Corp.	112		11,044
CF Industries Holdings, Inc.	265		10,833
Chemours Co. (The)	214		7,952
Crown Holdings, Inc.2	187		10,205
Domtar Corp.	108		5,362
Eagle Materials, Inc.	71		5,985
Eastman Chemical Co.	118		8,954
Element Solutions, Inc.2	373		3,767
FMC Corp.	134		10,294
Graphic Packaging Holding Co.	488		6,163
Huntsman Corp.	281		6,320
International Flavors & Fragrances, Inc.	95		12,235
Martin Marietta Materials, Inc.1	55		11,065
Mosaic Co. (The)	375		10,241
NewMarket Corp.	13		5,636
Olin Corp.1	248		5,739
Owens-Illinois, Inc.	279		5,295
Packaging Corp. of America	97		9,640
Reliance Steel & Aluminum Co.	96		8,665
Royal Gold, Inc.	102		9,275
RPM International, Inc.1	181		10,505
Scotts Miracle-Gro Co., (The)1	63		4,951
Sealed Air Corp.	241		11,101
Silgan Holdings, Inc.	133		3,941
Sonoco Products Co.1	149		9,168
Southern Copper Corp.1	23		913
Steel Dynamics, Inc.	226		7,971
United States Steel Corp.1	268		5,223
Valvoline, Inc.1	361		6,700
Westlake Chemical Corp.	30		2,036
WestRock Co.	208		7,977
WR Grace & Co.	103		8,038
Total Materials			338,476
Media & Entertainment—3.7%
AMC Networks, Inc., Class A1,2	78		4,427
Cable One, Inc.	8		7,851
Cinemark Holdings, Inc.1	175		6,998
Discovery, Inc., Class A1,2	166		4,485
Discovery, Inc., Class C2	390		9,914
DISH Network Corp., Class A1,2	318		10,077
GCI Liberty, Inc., Class A1,2	160		8,898
IAC/InterActiveCorp2	88		18,490
Interpublic Group of Cos., Inc. (The)	462		9,707
John Wiley & Sons, Inc., Class A	75		3,317
Liberty Broadband Corp., Class A2	25		2,291
Liberty Broadband Corp., Class C2	111		10,183
Liberty Media Corp.-Liberty Formula One,    Class C2	283		9,919
Liberty Media Corp.-Liberty SiriusXM, Class A2	69		2,634
Liberty Media Corp.-Liberty SiriusXM, Class C2	140		5,354
Lions Gate Entertainment Corp., Class A	221		3,456
Live Nation Entertainment, Inc.1,2	180		11,437
Madison Square Garden Co. (The), Class A2	31		9,087
Match Group, Inc.	115		6,510
	Shares		Value
Media & Entertainment (Continued)
News Corp., Class A	455	$	5,660
News Corp., Class B	144		1,799
Take-Two Interactive Software, Inc.2	110		10,381
Tribune Media Co., Class A	150		6,921
TripAdvisor, Inc.1,2	144		7,409
Viacom, Inc., Class B	364		10,217
Zillow Group, Inc., Class A2	94		3,215
Zillow Group, Inc., Class C1,2	148		5,142
Zynga, Inc., Class A2	1,262		6,726
Total Media & Entertainment			202,505
Pharmaceuticals, Biotechnology & Life Sciences—4.9%
Agios Pharmaceuticals, Inc.1,2	82		5,530
Alkermes PLC2	202		7,371
Alnylam Pharmaceuticals, Inc.1,2	103		9,625
Bio-Rad Laboratories, Inc., Class A2	28		8,559
Bio-Techne Corp.	56		11,119
Bluebird Bio, Inc.1,2	62		9,754
Bruker Corp.	156		5,997
Catalent, Inc.2	200		8,118
Charles River Laboratories International, Inc.2	72		10,458
Exact Sciences Corp.1,2	164		14,206
Exelixis, Inc.2	441		10,496
Incyte Corp.2	156		13,418
Ionis Pharmaceuticals, Inc.1,2	185		15,016
Jazz Pharmaceuticals PLC2	65		9,292
Mettler-Toledo International, Inc.2	22		15,906
Nektar Therapeutics1,2	138		4,637
Neurocrine Biosciences, Inc.2	112		9,867
PerkinElmer, Inc.1	142		13,683
Perrigo Co. PLC1	151		7,272
PRA Health Sciences, Inc.2	75		8,272
QIAGEN NV2	295		12,001
Sage Therapeutics, Inc.1,2	61		9,702
Sarepta Therapeutics, Inc.1,2	92		10,965
Seattle Genetics, Inc.2	122		8,935
United Therapeutics Corp.2	67		7,864
Waters Corp.2	64		16,109
Total Pharmaceuticals, Biotechnology & Life Sciences			264,172
Real Estate—10.7%
Alexandria Real Estate Equities, Inc.	99		14,113
American Campus Communities, Inc.	202		9,611
American Homes 4 Rent, Class A	397		9,020
Apartment Investment & Management Co., Class A	216		10,863
Apple Hospitality REIT, Inc.	344		5,607
Brandywine Realty Trust	305		4,837
Brixmor Property Group, Inc.	466		8,560
Camden Property Trust	115		11,672
CBRE Group, Inc., Class A2	262		12,956
Colony Capital, Inc.	873		4,644
Columbia Property Trust, Inc.	208		4,682
CoreSite Realty Corp.	57		6,100
Corporate Office Properties Trust	178		4,859
CubeSmart	268		8,587
CyrusOne, Inc.	145		7,604
Douglas Emmett, Inc.	236		9,539
Duke Realty Corp.	394		12,048

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 1000^® Size Factor ETF

	Shares		Value
Real Estate (Continued)
Empire State Realty Trust, Inc., Class A	235	$	3,713
EPR Properties	116		8,920
Equity Commonwealth	194		6,342
Equity LifeStyle Properties, Inc.	111		12,687
Extra Space Storage, Inc.	124		12,637
Federal Realty Investment Trust	92		12,682
Gaming and Leisure Properties, Inc.	276		10,645
HCP, Inc.	509		15,932
Healthcare Trust of America, Inc., Class A	306		8,749
Highwoods Properties, Inc.	156		7,298
Hospitality Properties Trust	252		6,630
Howard Hughes Corp. (The)1,2	58		6,380
Hudson Pacific Properties, Inc.	227		7,813
Invitation Homes, Inc.	302		7,348
Iron Mountain, Inc.1	324		11,489
JBG SMITH Properties	163		6,740
Jones Lang LaSalle, Inc.	64		9,868
Kilroy Realty Corp.	133		10,103
Kimco Realty Corp.	640		11,840
Lamar Advertising Co., Class A1	128		10,145
Liberty Property Trust	215		10,410
Life Storage, Inc.	73		7,101
Macerich Co. (The)1	173		7,500
Medical Properties Trust, Inc.	556		10,292
Mid-America Apartment Communities, Inc.	126		13,776
National Retail Properties, Inc.	214		11,853
Omega Healthcare Investors, Inc.	279		10,644
Outfront Media, Inc.	242		5,663
Paramount Group, Inc.	410		5,818
Park Hotels & Resorts, Inc.	279		8,671
Rayonier, Inc.	216		6,808
Realogy Holdings Corp.1	247		2,816
Realty Income Corp.	232		17,066
Regency Centers Corp.	170		11,473
Retail Properties of America, Inc., Class A	496		6,046
Retail Value, Inc.	45		1,403
Senior Housing Properties Trust	378		4,453
SITE Centers Corp.1	266		3,623
SL Green Realty Corp.	103		9,262
Spirit Realty Capital, Inc.	144		5,721
STORE Capital Corp.	267		8,944
Sun Communities, Inc.	105		12,445
Taubman Centers, Inc.	100		5,288
UDR, Inc.	298		13,547
Uniti Group, Inc.	273		3,055
VEREIT, Inc.	1,307		10,940
VICI Properties, Inc.	362		7,921
Vornado Realty Trust	157		10,588
Weingarten Realty Investors	197		5,786
WP Carey, Inc.	140		10,966
Total Real Estate			583,142
Retailing—3.9%
Advance Auto Parts, Inc.	84		14,325
AutoNation, Inc.1,2	89		3,179
Burlington Stores, Inc.1,2	80		12,534
CarMax, Inc.1,2	180		12,564
Dick’s Sporting Goods, Inc.1	134		4,933
	Shares		Value
Retailing (Continued)
Foot Locker, Inc.	164	$	9,938
Gap, Inc. (The)	229		5,995
Genuine Parts Co.	137		15,348
GrubHub, Inc.1,2	102		7,086
Kohl's Corp.	180		12,379
L Brands, Inc.	285		7,860
LKQ Corp.2	345		9,791
Macy's, Inc.	345		8,290
Michaels Cos., Inc. (The)1,2	225		2,570
Nordstrom, Inc.1	146		6,480
Penske Automotive Group, Inc.1	57		2,545
Pool Corp.	63		10,393
Qurate Retail, Inc.2	535		8,549
Tractor Supply Co.	151		14,762
Ulta Beauty, Inc.2	49		17,088
Urban Outfitters, Inc.2	116		3,438
Wayfair, Inc., Class A2	87		12,915
Williams-Sonoma, Inc.1	130		7,315
Total Retailing			210,277
Semiconductors & Semiconductor Equipment—2.4%
Advanced Micro Devices, Inc.1,2	984		25,112
Cypress Semiconductor Corp.	607		9,056
First Solar, Inc.1,2	109		5,760
Marvell Technology Group Ltd.	749		14,898
MKS Instruments, Inc.	96		8,933
Monolithic Power Systems, Inc.	78		10,568
ON Semiconductor Corp.2	551		11,334
Qorvo, Inc.2	163		11,692
Teradyne, Inc.	311		12,390
Universal Display Corp.	71		10,852
Versum Materials, Inc.	173		8,704
Total Semiconductors & Semiconductor Equipment			129,299
Software & Services—11.5%
2U, Inc.1,2	95		6,731
Akamai Technologies, Inc.2	182		13,051
Alliance Data Systems Corp.	52		9,099
Amdocs Ltd.	189		10,227
ANSYS, Inc.2	87		15,896
Aspen Technology, Inc.2	120		12,511
Atlassian Corp. PLC, Class A2	156		17,533
Black Knight, Inc.2	184		10,028
Booz Allen Hamilton Holding Corp.	196		11,395
Broadridge Financial Solutions, Inc.	110		11,406
Cadence Design Systems, Inc.2	322		20,450
CDK Global, Inc.	189		11,117
Ceridian HCM Holding, Inc.2	43		2,206
Citrix Systems, Inc.	136		13,554
Conduent, Inc.2	309		4,273
CoreLogic, Inc.2	130		4,844
DocuSign, Inc.1,2	38		1,970
EPAM Systems, Inc.2	85		14,376
Euronet Worldwide, Inc.1,2	79		11,265
Fair Isaac Corp.2	51		13,853
FireEye, Inc.1,2	378		6,347
First Data Corp., Class A2	579		15,210
Fortinet, Inc.2	187		15,702
Gartner, Inc.1,2	106		16,078

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 1000^® Size Factor ETF

	Shares		Value
Software & Services (Continued)
Genpact Ltd.	215	$	7,564
GoDaddy, Inc., Class A2	181		13,609
Guidewire Software, Inc.1,2	123		11,951
Jack Henry & Associates, Inc.	87		12,070
Leidos Holdings, Inc.	197		12,626
LogMeIn, Inc.	89		7,129
Manhattan Associates, Inc.1,2	135		7,440
Nuance Communications, Inc.2	609		10,310
Nutanix, Inc., Class A2	184		6,944
Okta, Inc.2	161		13,320
Paycom Software, Inc.1,2	85		16,076
Pegasystems, Inc.	68		4,420
Proofpoint, Inc.2	85		10,322
PTC, Inc.2	157		14,472
RealPage, Inc.1,2	123		7,465
RingCentral, Inc., Class A2	124		13,367
Sabre Corp.	326		6,973
SS&C Technologies Holdings, Inc.	236		15,031
Symantec Corp.	701		16,116
Synopsys, Inc.2	160		18,424
Tableau Software, Inc., Class A1,2	109		13,874
Teradata Corp.2	239		10,432
Total System Services, Inc.	144		13,681
Twilio, Inc., Class A2	142		18,344
Tyler Technologies, Inc.2	53		10,833
Ultimate Software Group, Inc. (The)2	45		14,856
VMware, Inc., Class A1	73		13,177
Western Union Co. (The)	538		9,937
WEX, Inc.2	55		10,559
Zendesk, Inc.2	182		15,470
Total Software & Services			625,914
Technology Hardware & Equipment—3.9%
ARRIS International PLC2	337		10,653
Arrow Electronics, Inc.2	121		9,324
Avnet, Inc.	185		8,024
CDW Corp.	169		16,287
Cognex Corp.1	219		11,138
Coherent, Inc.1,2	40		5,669
CommScope Holding Co., Inc.2	345		7,497
Dolby Laboratories, Inc., Class A	99		6,234
EchoStar Corp., Class A2	101		3,681
F5 Networks, Inc.2	77		12,084
FLIR Systems, Inc.	176		8,374
IPG Photonics Corp.1,2	33		5,009
Jabil, Inc.	258		6,860
Juniper Networks, Inc.	511		13,526
Keysight Technologies, Inc.2	202		17,614
Littelfuse, Inc.	36		6,569
National Instruments Corp.	164		7,275
NCR Corp.1,2	262		7,150
Pure Storage, Inc., Class A2	324		7,060
Trimble, Inc.1,2	328		13,251
Ubiquiti Networks, Inc.	32		4,791
Xerox Corp.	301		9,626
Zebra Technologies Corp., Class A2	66		13,829
Total Technology Hardware & Equipment			211,525
	Shares		Value
Telecommunication Services—0.3%
Sprint Corp.2	392	$	2,215
Telephone & Data Systems, Inc.	172		5,285
Zayo Group Holdings, Inc.2	240		6,821
Total Telecommunication Services			14,321
Transportation—2.3%
Alaska Air Group, Inc.1	164		9,204
AMERCO	10		3,715
C.H. Robinson Worldwide, Inc.	135		11,744
Copa Holdings SA, Class A	52		4,192
Expeditors International of Washington, Inc.	161		12,220
Genesee & Wyoming, Inc., Class A2	93		8,104
JB Hunt Transport Services, Inc.	76		7,698
JetBlue Airways Corp.2	484		7,918
Kansas City Southern	107		12,410
Kirby Corp.1,2	96		7,210
Knight-Swift Transportation Holdings, Inc.1	170		5,556
Landstar System, Inc.	65		7,110
Macquarie Infrastructure Corp.	153		6,307
Old Dominion Freight Line, Inc.	68		9,818
Ryder System, Inc.	87		5,393
Schneider National, Inc., Class B	83		1,747
XPO Logistics, Inc.1,2	112		6,019
Total Transportation			126,365
Utilities—4.3%
AES Corp.	831		15,025
Alliant Energy Corp.	263		12,395
Ameren Corp.	207		15,225
American Water Works Co., Inc.	148		15,430
Aqua America, Inc.1	270		9,839
Atmos Energy Corp.	117		12,043
Avangrid, Inc.	43		2,165
CenterPoint Energy, Inc.1	442		13,569
CMS Energy Corp.	259		14,385
Entergy Corp.	152		14,536
Evergy, Inc.	218		12,655
Hawaiian Electric Industries, Inc.1	179		7,298
MDU Resources Group, Inc.	288		7,439
National Fuel Gas Co.	128		7,803
NiSource, Inc.1	423		12,123
NRG Energy, Inc.	347		14,741
OGE Energy Corp.	268		11,556
Pinnacle West Capital Corp.	168		16,057
UGI Corp.	207		11,472
Vistra Energy Corp.	382		9,943
Total Utilities			235,699
Total Common Stocks
(Cost $5,172,111)			5,424,236
Money Market Fund—0.1%
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%3
(Cost $7,256)	7,256		7,256

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 1000^® Size Factor ETF

	Shares		Value
Investment of Cash Collateral for Securities Loaned—0.3%
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%3
(Cost $15,706)		15,706	$	15,706
Total Investments—100.2% (Cost $5,195,073)				5,447,198
Liabilities in Excess of Other Assets—(0.2)%				(10,038	)
Net Assets—100.0%			$	5,437,160

PLC	-	Public Limited Company
REIT	-	Real Estate Investment Trust

1.	All or a portion of the security was on loan. The aggregate value of the securities on loan was $1,079,776; total value of the collateral held by the Fund was $1,103,097. The total value of the collateral includes non-cash U.S. Treasury securities collateral having a value of $1,087,391.
2.	Non-income producing security.
3.	Rate shown represents annualized 7-day yield as of March 31, 2019.

Schedule of Investments March 31, 2019 Unaudited

Oppenheimer Russell 1000^® Quality Factor ETF

	Shares		Value
COMMON STOCKS—99.8%
Automobiles & Components—0.2%
BorgWarner, Inc.		65	$	2,497
Garrett Motion, Inc.1		20		294
Gentex Corp.		131		2,709
Lear Corp.		25		3,393
Thor Industries, Inc.		24		1,497
Visteon Corp.1,2		12		808
Total Automobiles & Components				11,198
Capital Goods—8.1%
3M Co.		211		43,842
A.O. Smith Corp.		63		3,359
Acuity Brands, Inc.		19		2,280
Allegion PLC		24		2,177
Allison Transmission Holdings, Inc.		47		2,111
AMETEK, Inc.		60		4,978
Boeing Co. (The)		251		95,736
BWX Technologies, Inc.		32		1,587
Caterpillar, Inc.		149		20,188
Crane Co.		15		1,269
Cummins, Inc.		69		10,893
Curtiss-Wright Corp.		13		1,473
Donaldson Co., Inc.2		49		2,453
Dover Corp.		44		4,127
Eaton Corp. PLC		115		9,264
Emerson Electric Co.		222		15,200
Fastenal Co.2		137		8,810
Fluor Corp.		35		1,288
Fortune Brands Home & Security, Inc.		45		2,142
General Dynamics Corp.		115		19,467
Graco, Inc.		78		3,863
HD Supply Holdings, Inc.1		53		2,298
Hexcel Corp.		24		1,660
Honeywell International, Inc.		205		32,579
Hubbell, Inc.2		16		1,888
Huntington Ingalls Industries, Inc.		21		4,351
IDEX Corp.		27		4,097
Illinois Tool Works, Inc.		118		16,937
Ingersoll-Rand PLC		90		9,715
ITT, Inc.		39		2,262
Jacobs Engineering Group, Inc.		51		3,835
Lennox International, Inc.		13		3,437
Lincoln Electric Holdings, Inc.		18		1,510
Lockheed Martin Corp.		101		30,316
Masco Corp.		79		3,105
MSC Industrial Direct Co., Inc., Class A		15		1,241
nVent Electric PLC		69		1,862
Owens Corning		31		1,461
PACCAR, Inc.		92		6,269
Pentair PLC		56		2,493
Quanta Services, Inc.		48		1,811
Raytheon Co.		107		19,483
Resideo Technologies, Inc.1		34		656
Rockwell Automation, Inc.		46		8,071
Sensata Technologies Holding PLC1		45		2,026
Snap-on, Inc.2		19		2,974
Spirit AeroSystems Holdings, Inc., Class A		38		3,478
Terex Corp.		29		932
		Shares		Value
Capital Goods (Continued)
Textron, Inc.		63	$	3,192
Toro Co. (The)		50		3,442
TransDigm Group, Inc.1		15		6,810
W.W. Grainger, Inc.		17		5,116
WABCO Holdings, Inc.1		13		1,714
Watsco, Inc.		12		1,718
Xylem, Inc.2		57		4,505
Total Capital Goods				453,751
Commercial & Professional Services—0.7%
Copart, Inc.1,2		86		5,211
CoStar Group, Inc.1		14		6,530
Equifax, Inc.		67		7,939
Robert Half International, Inc.		54		3,519
Rollins, Inc.2		62		2,580
Waste Management, Inc.		142		14,755
Total Commercial & Professional Services				40,534
Consumer Durables & Apparel—2.0%
Brunswick Corp.		36		1,812
Capri Holdings Ltd.1		50		2,288
Carter’s, Inc.2		17		1,713
Columbia Sportswear Co.		13		1,354
D.R. Horton, Inc.		90		3,724
Garmin Ltd.		47		4,059
Hanesbrands, Inc.		113		2,020
Hasbro, Inc.2		45		3,826
Leggett & Platt, Inc.2		36		1,520
Lululemon Athletica, Inc.1		47		7,702
NIKE, Inc., Class B		606		51,031
NVR, Inc.1		2		5,534
Polaris Industries, Inc.2		28		2,364
PulteGroup, Inc.		89		2,488
Ralph Lauren Corp.		24		3,112
Skechers U.S.A., Inc., Class A1		61		2,050
Tapestry, Inc.		126		4,094
Toll Brothers, Inc.		43		1,557
VF Corp.		126		10,951
Total Consumer Durables & Apparel				113,199
Consumer Services—3.2%
Carnival Corp.		139		7,050
Chipotle Mexican Grill, Inc.1		12		8,524
Darden Restaurants, Inc.		46		5,588
Domino's Pizza, Inc.2		18		4,646
Grand Canyon Education, Inc.1		21		2,405
Hyatt Hotels Corp., Class A		16		1,161
Las Vegas Sands Corp.		143		8,717
Marriott International, Inc., Class A		102		12,759
McDonald's Corp.		248		47,095
Royal Caribbean Cruises Ltd.		46		5,272
Six Flags Entertainment Corp.		23		1,135
Starbucks Corp.		650		48,321
Wyndham Hotels & Resorts, Inc.		44		2,200
Wynn Resorts Ltd.		26		3,102
Yum China Holdings, Inc.		155		6,961
Yum! Brands, Inc.		133		13,275
Total Consumer Services				178,211
Diversified Financials—2.2%
Affiliated Managers Group, Inc.		22		2,356
Cboe Global Markets, Inc.		59		5,631

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 1000^® Quality Factor ETF

	Shares		Value
Diversified Financials (Continued)
Credit Acceptance Corp.1,2	8	$	3,616
Eaton Vance Corp.2	78		3,144
Evercore, Inc., Class A	27		2,457
FactSet Research Systems, Inc.2	12		2,979
Franklin Resources, Inc.	203		6,727
Lazard Ltd., Class A	78		2,819
MarketAxess Holdings, Inc.2	25		6,152
Moody's Corp.	110		19,920
MSCI, Inc.	57		11,334
S&P Global, Inc.	170		35,794
SEI Investments Co.	90		4,703
T. Rowe Price Group, Inc.	160		16,019
Total Diversified Financials			123,651
Energy—7.0%
Anadarko Petroleum Corp.	129		5,867
Antero Resources Corp.1,2	73		645
Apache Corp.2	117		4,055
Apergy Corp.1	35		1,437
Cabot Oil & Gas Corp.	164		4,280
Chevron Corp.	707		87,088
Cimarex Energy Co.	40		2,796
Concho Resources, Inc.	49		5,437
ConocoPhillips	417		27,830
EOG Resources, Inc.	210		19,988
Exxon Mobil Corp.	1,677		135,502
Halliburton Co.	282		8,263
Helmerich & Payne, Inc.	39		2,167
HollyFrontier Corp.	60		2,956
Marathon Petroleum Corp.	182		10,893
Occidental Petroleum Corp.	273		18,073
PBF Energy, Inc., Class A	45		1,401
Phillips 66	159		15,132
Pioneer Natural Resources Co.	65		9,898
Schlumberger Ltd.	368		16,034
Valero Energy Corp.	191		16,202
Total Energy			395,944
Food & Staples Retailing—2.4%
Costco Wholesale Corp.	202		48,912
Kroger Co. (The)	241		5,929
Sprouts Farmers Market, Inc.1,2	58		1,249
Sysco Corp.	117		7,811
US Foods Holding Corp.1	56		1,955
Walgreens Boots Alliance, Inc.	309		19,551
Walmart, Inc.	517		50,423
Total Food & Staples Retailing			135,830
Food, Beverage & Tobacco—3.3%
Altria Group, Inc.	610		35,032
Brown-Forman Corp., Class B2	92		4,856
Bunge Ltd.	44		2,335
Campbell Soup Co.	61		2,326
General Mills, Inc.	155		8,021
Hershey Co. (The)	53		6,086
Hormel Foods Corp.	112		5,013
Ingredion, Inc.	22		2,083
Lamb Weston Holdings, Inc.	59		4,422
Molson Coors Brewing Co., Class B	49		2,923
Monster Beverage Corp.1	189		10,316
PepsiCo, Inc.	398		48,775
	Shares		Value
Food, Beverage & Tobacco (Continued)
Philip Morris International, Inc.	621	$	54,890
Total Food, Beverage & Tobacco			187,078
Health Care Equipment & Services—5.4%
ABIOMED, Inc.1	17		4,855
Align Technology, Inc.1	38		10,805
Baxter International, Inc.	175		14,229
Boston Scientific Corp.1	345		13,241
Cantel Medical Corp.	16		1,070
Centene Corp.1	160		8,496
Cerner Corp.1	119		6,808
Chemed Corp.	7		2,240
Cigna Corp.	125		20,102
Cooper Cos., Inc. (The)	15		4,443
CVS Health Corp.	356		19,199
Danaher Corp.	158		20,859
DexCom, Inc.1,2	23		2,739
Edwards Lifesciences Corp.1	96		18,368
Humana, Inc.	49		13,034
ICU Medical, Inc.1	7		1,675
IDEXX Laboratories, Inc.1	32		7,155
Intuitive Surgical, Inc.1	55		31,382
Masimo Corp.1	20		2,766
McKesson Corp.	81		9,482
Penumbra, Inc.1,2	8		1,176
ResMed, Inc.	47		4,887
UnitedHealth Group, Inc.	260		64,288
Universal Health Services, Inc., Class B	23		3,077
Varian Medical Systems, Inc.1	42		5,952
Veeva Systems, Inc., Class A1	48		6,089
West Pharmaceutical Services, Inc.	33		3,637
Total Health Care Equipment & Services			302,054
Household & Personal Products—2.7%
Clorox Co. (The)	49		7,862
Colgate-Palmolive Co.	346		23,715
Herbalife Nutrition Ltd.1,2	44		2,332
Kimberly-Clark Corp.	113		14,001
Nu Skin Enterprises, Inc., Class A	24		1,149
Procter & Gamble Co. (The)	967		100,616
Total Household & Personal Products			149,675
Insurance—1.2%
Aon PLC	110		18,777
Assured Guaranty Ltd.	47		2,088
Brown & Brown, Inc.	82		2,420
Erie Indemnity Co., Class A	17		3,035
Fidelity National Financial, Inc.	112		4,093
Marsh & McLennan Cos., Inc.	331		31,081
Torchmark Corp.	68		5,573
White Mountains Insurance Group Ltd.	2		1,851
Total Insurance			68,918
Materials—1.9%
Alcoa Corp.1,2	87		2,450
Avery Dennison Corp.	23		2,599
Cabot Corp.	20		833
Celanese Corp.	39		3,846
CF Industries Holdings, Inc.	70		2,861
Chemours Co. (The)	45		1,672
Eagle Materials, Inc.	17		1,433
Eastman Chemical Co.	36		2,732

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 1000^® Quality Factor ETF

	Shares		Value
Materials (Continued)
Ecolab, Inc.	64	$	11,298
Freeport-McMoRan, Inc.	400		5,156
International Flavors & Fragrances, Inc.	22		2,833
Linde PLC	87		15,306
LyondellBasell Industries NV, Class A	150		12,612
Martin Marietta Materials, Inc.2	16		3,219
Newmont Mining Corp.	204		7,297
Nucor Corp.	108		6,302
Packaging Corp. of America	27		2,683
PPG Industries, Inc.	72		8,127
Reliance Steel & Aluminum Co.	19		1,715
Royal Gold, Inc.	20		1,819
Southern Copper Corp.2	32		1,270
Steel Dynamics, Inc.	89		3,139
United States Steel Corp.2	48		935
Westlake Chemical Corp.	12		814
WR Grace & Co.	21		1,639
Total Materials			104,590
Media & Entertainment—10.7%
Activision Blizzard, Inc.	280		12,748
Alphabet, Inc., Class A1	126		148,288
Alphabet, Inc., Class C1	129		151,357
CBS Corp., Class B	89		4,230
Electronic Arts, Inc.1	145		14,736
Facebook, Inc., Class A1	1,071		178,525
Interpublic Group of Cos., Inc. (The)	131		2,752
John Wiley & Sons, Inc., Class A	18		796
Liberty Broadband Corp., Class A1	17		1,558
Liberty Broadband Corp., Class C1	70		6,422
Live Nation Entertainment, Inc.1,2	40		2,542
Madison Square Garden Co. (The), Class A1	8		2,345
News Corp., Class A	157		1,953
Omnicom Group, Inc.2	61		4,452
Sirius XM Holdings, Inc.2	428		2,427
Take-Two Interactive Software, Inc.1	41		3,869
TripAdvisor, Inc.1,2	48		2,470
Walt Disney Co. (The)	524		58,180
Zynga, Inc., Class A1	263		1,402
Total Media & Entertainment			601,052
Pharmaceuticals, Biotechnology & Life Sciences—11.7%
AbbVie, Inc.	584		47,064
Agilent Technologies, Inc.	106		8,520
Alexion Pharmaceuticals, Inc.1	56		7,570
Amgen, Inc.	236		44,835
Biogen, Inc.1	95		22,456
Bio-Techne Corp.	9		1,787
Bristol-Myers Squibb Co.	782		37,309
Celgene Corp.1	285		26,887
Charles River Laboratories International, Inc.1	12		1,743
Eli Lilly & Co.	324		42,042
Exelixis, Inc.1	142		3,380
Gilead Sciences, Inc.	355		23,078
Illumina, Inc.1	65		20,195
Jazz Pharmaceuticals PLC1	17		2,430
Johnson & Johnson	1,154		161,318
Merck & Co., Inc.	858		71,360
Mettler-Toledo International, Inc.1	10		7,230
Pfizer, Inc.	1,509		64,087
	Shares		Value
Pharmaceuticals, Biotechnology & Life Sciences (Continued)
Regeneron Pharmaceuticals, Inc.1	35	$	14,372
Sage Therapeutics, Inc.1,2	15		2,386
Seattle Genetics, Inc.1	47		3,442
United Therapeutics Corp.1	18		2,113
Vertex Pharmaceuticals, Inc.1	118		21,706
Waters Corp.1	25		6,293
Zoetis, Inc.	174		17,517
Total Pharmaceuticals, Biotechnology & Life Sciences			661,120
Real Estate—2.0%
AvalonBay Communities, Inc.	49		9,836
CBRE Group, Inc., Class A1	174		8,604
EPR Properties	26		1,999
Equity LifeStyle Properties, Inc.	35		4,000
Extra Space Storage, Inc.	58		5,911
Gaming and Leisure Properties, Inc.	77		2,970
Host Hotels & Resorts, Inc.	264		4,990
Jones Lang LaSalle, Inc.	17		2,621
Lamar Advertising Co., Class A2	46		3,646
Prologis, Inc.	216		15,541
Public Storage	100		21,778
Rayonier, Inc.	51		1,608
Retail Properties of America, Inc., Class A	97		1,182
Simon Property Group, Inc.	144		26,238
Weingarten Realty Investors	67		1,968
Total Real Estate			112,892
Retailing—6.0%
Advance Auto Parts, Inc.	22		3,752
AutoZone, Inc.1	8		8,193
Best Buy Co., Inc.	117		8,314
Booking Holdings, Inc.1	18		31,408
Burlington Stores, Inc.1,2	24		3,760
Dick’s Sporting Goods, Inc.2	36		1,325
Dollar General Corp.	98		11,691
eBay, Inc.	355		13,185
Expedia Group, Inc.2	34		4,046
Foot Locker, Inc.	51		3,091
Gap, Inc. (The)	98		2,566
GrubHub, Inc.1,2	36		2,501
Home Depot, Inc. (The)	536		102,853
Kohl's Corp.	53		3,645
L Brands, Inc.	62		1,710
Lowe's Cos., Inc.	281		30,761
Nordstrom, Inc.2	42		1,864
O'Reilly Automotive, Inc.1	35		13,590
Pool Corp.2	14		2,309
Ross Stores, Inc.	179		16,665
Target Corp.	184		14,768
Tiffany & Co.2	54		5,700
TJX Cos., Inc. (The)	588		31,287
Tractor Supply Co.	58		5,670
Ulta Beauty, Inc.1	29		10,113
Urban Outfitters, Inc.1	34		1,008
Williams-Sonoma, Inc.2	36		2,026
Total Retailing			337,801
Semiconductors & Semiconductor Equipment—6.2%
Applied Materials, Inc.	432		17,133
Broadcom, Inc.	127		38,190

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 1000^® Quality Factor ETF

	Shares		Value
Semiconductors & Semiconductor Equipment (Continued)
First Solar, Inc.1,2	38	$	2,008
Intel Corp.	1,802		96,768
KLA-Tencor Corp.	41		4,896
Lam Research Corp.	54		9,667
Marvell Technology Group Ltd.	170		3,381
Maxim Integrated Products, Inc.	89		4,732
Microchip Technology, Inc.	68		5,641
Micron Technology, Inc.1	464		19,177
MKS Instruments, Inc.	25		2,326
Monolithic Power Systems, Inc.	16		2,168
NVIDIA Corp.	284		50,995
NXP Semiconductors NV	84		7,425
ON Semiconductor Corp.1	104		2,139
Qorvo, Inc.1	45		3,228
Skyworks Solutions, Inc.	85		7,011
Teradyne, Inc.	88		3,506
Texas Instruments, Inc.	469		49,747
Universal Display Corp.	20		3,057
Versum Materials, Inc.	42		2,113
Xilinx, Inc.	113		14,327
Total Semiconductors & Semiconductor Equipment			349,635
Software & Services—13.6%
Accenture PLC, Class A	292		51,398
Adobe, Inc.1	225		59,960
Akamai Technologies, Inc.1	66		4,733
Amdocs Ltd.	59		3,192
ANSYS, Inc.1	36		6,578
Aspen Technology, Inc.1	34		3,545
Automatic Data Processing, Inc.	207		33,066
Booz Allen Hamilton Holding Corp.	39		2,267
Broadridge Financial Solutions, Inc.	51		5,288
CDK Global, Inc.	39		2,294
Citrix Systems, Inc.	50		4,983
Cognizant Technology Solutions Corp., Class A	264		19,127
EPAM Systems, Inc.1	21		3,552
Euronet Worldwide, Inc.1,2	17		2,424
Fair Isaac Corp.1	8		2,173
Fiserv, Inc.1,2	122		10,770
Fortinet, Inc.1	64		5,374
Guidewire Software, Inc.1,2	28		2,720
Intuit, Inc.	117		30,585
Jack Henry & Associates, Inc.	36		4,995
Leidos Holdings, Inc.	40		2,564
Manhattan Associates, Inc.1,2	31		1,708
Mastercard, Inc., Class A	627		147,627
Palo Alto Networks, Inc.1,2	28		6,801
Paychex, Inc.	151		12,110
Paycom Software, Inc.1,2	20		3,783
PayPal Holdings, Inc.1	542		56,281
Red Hat, Inc.1	78		14,251
RingCentral, Inc., Class A1	19		2,048
salesforce.com, Inc.1	261		41,335
Splunk, Inc.1,2	47		5,856
Synopsys, Inc.1	59		6,794
Total System Services, Inc.	59		5,606
Tyler Technologies, Inc.1	15		3,066
	Shares		Value
Software & Services (Continued)
Ultimate Software Group, Inc. (The)1	11	$	3,631
VeriSign, Inc.1	32		5,810
Visa, Inc., Class A2	1,145		178,837
VMware, Inc., Class A2	29		5,235
Zendesk, Inc.1	29		2,465
Total Software & Services			764,832
Technology Hardware & Equipment—6.2%
Amphenol Corp., Class A	99		9,350
Apple, Inc.	1,470		279,227
Arista Networks, Inc.1	26		8,176
CDW Corp.	39		3,758
Cognex Corp.2	80		4,069
Coherent, Inc.1,2	9		1,276
Dolby Laboratories, Inc., Class A	27		1,700
F5 Networks, Inc.1	28		4,394
FLIR Systems, Inc.	56		2,664
IPG Photonics Corp.1,2	17		2,580
Jabil, Inc.	55		1,462
Juniper Networks, Inc.	106		2,806
Littelfuse, Inc.	10		1,825
Motorola Solutions, Inc.	43		6,038
National Instruments Corp.	51		2,262
NetApp, Inc.	115		7,974
Pure Storage, Inc., Class A1	54		1,177
Trimble, Inc.1,2	79		3,192
Zebra Technologies Corp., Class A1	13		2,724
Total Technology Hardware & Equipment			346,654
Transportation—1.9%
Alaska Air Group, Inc.2	48		2,694
C.H. Robinson Worldwide, Inc.	38		3,306
Copa Holdings SA, Class A	11		887
Delta Air Lines, Inc.	211		10,898
Expeditors International of Washington, Inc.	83		6,300
FedEx Corp.	87		15,783
JB Hunt Transport Services, Inc.	36		3,646
JetBlue Airways Corp.1	135		2,208
Kansas City Southern	29		3,363
Kirby Corp.1,2	17		1,277
Landstar System, Inc.	16		1,750
Old Dominion Freight Line, Inc.	30		4,332
Southwest Airlines Co.	227		11,783
Union Pacific Corp.	238		39,794
Total Transportation			108,021
Utilities—1.2%
Ameren Corp.	63		4,634
CenterPoint Energy, Inc.2	108		3,316
Consolidated Edison, Inc.	118		10,008
DTE Energy Co.	47		5,863
Edison International	88		5,449
Evergy, Inc.	69		4,005
Exelon Corp.	235		11,780
MDU Resources Group, Inc.	49		1,266
National Fuel Gas Co.	23		1,402
NRG Energy, Inc.	84		3,568
PG&E Corp.1	138		2,456
Pinnacle West Capital Corp.	28		2,676
Sempra Energy	65		8,181
UGI Corp.	45		2,494

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 1000^® Quality Factor ETF

	Shares		Value
Utilities (Continued)
Vistra Energy Corp.	134	$	3,488
Total Utilities			70,586
Total Common Stocks
(Cost $5,142,469)			5,617,226
Money Market Fund—0.1%
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%3
(Cost $3,753)	3,753		3,753
Total Investments—99.9% (Cost $5,146,222)			5,620,979
Other Assets in Excess of Liabilities—0.1%			3,580
Net Assets—100.0%		$	5,624,559

PLC - Public Limited Company

1.	Non-income producing security.
2.	All or a portion of the security was on loan. The aggregate value of the securities on loan was $350,621; total value of the collateral held by the Fund was $358,213. The total value of the collateral includes non-cash U.S. Treasury securities collateral having a value of $358,213.
3.	Rate shown represents annualized 7-day yield as of March 31, 2019.

Schedule of Investments March 31, 2019 Unaudited

Oppenheimer Russell 1000^® Yield Factor ETF

	Shares		Value
COMMON STOCKS—99.7%
Automobiles & Components—1.0%
Ford Motor Co.		2,941	$	25,822
Garrett Motion, Inc.1		33		486
General Motors Co.		895		33,205
Harley-Davidson, Inc.2		111		3,958
Total Automobiles & Components				63,471
Banks—6.2%
BB&T Corp.2		426		19,822
F.N.B. Corp.2		218		2,311
Huntington Bancshares, Inc.2		619		7,849
JPMorgan Chase & Co.		1,605		162,474
New York Community Bancorp, Inc.2		368		4,258
PacWest Bancorp		86		3,234
People's United Financial, Inc.2		236		3,880
PNC Financial Services Group, Inc. (The)		216		26,494
SunTrust Banks, Inc.		231		13,687
U.S. Bancorp		815		39,275
Wells Fargo & Co.		2,650		128,048
Total Banks				411,332
Capital Goods—6.8%
3M Co.		319		66,282
Caterpillar, Inc.		279		37,802
Cummins, Inc.		93		14,682
Eaton Corp. PLC		279		22,476
Emerson Electric Co.		366		25,060
Fastenal Co.2		159		10,225
General Electric Co.		6,503		64,965
Honeywell International, Inc.		336		53,397
Illinois Tool Works, Inc.		163		23,395
Johnson Controls International PLC		574		21,204
Lockheed Martin Corp.		135		40,522
PACCAR, Inc.		230		15,672
Pentair PLC		103		4,585
Resideo Technologies, Inc.1		55		1,061
United Technologies Corp.		380		48,978
Total Capital Goods				450,306
Commercial & Professional Services—0.4%
Nielsen Holdings PLC		259		6,131
Waste Management, Inc.		210		21,821
Total Commercial & Professional Services				27,952
Consumer Durables & Apparel—0.8%
Garmin Ltd.		100		8,635
Hanesbrands, Inc.		231		4,130
Hasbro, Inc.2		66		5,611
Leggett & Platt, Inc.2		86		3,631
Mattel, Inc.1,2		226		2,938
Newell Brands, Inc.2		313		4,802
Tapestry, Inc.		180		5,848
VF Corp.		161		13,993
Whirlpool Corp.		43		5,714
Total Consumer Durables & Apparel				55,302
Consumer Services—2.6%
Carnival Corp.		238		12,072
Darden Restaurants, Inc.		74		8,989
Extended Stay America, Inc.		133		2,387
H&R Block, Inc.		138		3,304
Las Vegas Sands Corp.		241		14,691
McDonald's Corp.		429		81,467
Six Flags Entertainment Corp.		51		2,517
		Shares		Value
Consumer Services (Continued)
Starbucks Corp.		639	$	47,503
Total Consumer Services				172,930
Diversified Financials—1.3%
AGNC Investment Corp.		345		6,210
Ameriprise Financial, Inc.		78		9,992
Annaly Capital Management, Inc.		949		9,481
BGC Partners, Inc., Class A2		204		1,083
Chimera Investment Corp.		153		2,867
Franklin Resources, Inc.		178		5,899
Invesco Ltd.		290		5,600
Lazard Ltd., Class A		74		2,674
MFA Financial, Inc.		324		2,356
Morgan Stanley		555		23,421
Navient Corp.		191		2,210
New Residential Investment Corp.		274		4,633
Starwood Property Trust, Inc.		206		4,604
Two Harbors Investment Corp.		143		1,935
Total Diversified Financials				82,965
Energy—9.1%
Apache Corp.2		211		7,313
Chevron Corp.		1,269		156,315
Exxon Mobil Corp.		2,921		236,017
Helmerich & Payne, Inc.		75		4,167
Kinder Morgan, Inc.		1,253		25,073
Marathon Petroleum Corp.		218		13,047
Murphy Oil Corp.2		105		3,077
Occidental Petroleum Corp.		519		34,358
ONEOK, Inc.		293		20,463
Phillips 66		226		21,508
Schlumberger Ltd.		856		37,296
Targa Resources Corp.		173		7,188
Valero Energy Corp.		231		19,596
Williams Cos., Inc. (The)		606		17,404
Total Energy				602,822
Food & Staples Retailing—1.9%
Sysco Corp.		234		15,622
Walgreens Boots Alliance, Inc.		481		30,433
Walmart, Inc.		778		75,878
Total Food & Staples Retailing				121,933
Food, Beverage & Tobacco—8.3%
Altria Group, Inc.		1,408		80,861
Archer-Daniels-Midland Co.		343		14,794
Bunge Ltd.		80		4,246
Campbell Soup Co.		126		4,804
Coca-Cola Co. (The)		2,549		119,446
General Mills, Inc.		433		22,408
Hershey Co. (The)		85		9,761
JM Smucker Co. (The)2		66		7,689
Kellogg Co.		161		9,238
Kraft Heinz Co. (The)		433		14,137
Molson Coors Brewing Co., Class B		100		5,965
Mondelez International, Inc., Class A		721		35,992
PepsiCo, Inc.		909		111,398
Philip Morris International, Inc.		1,179		104,212
Total Food, Beverage & Tobacco				544,951
Health Care Equipment & Services—1.6%
Cardinal Health, Inc.		208		10,015
CVS Health Corp.		649		35,001

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 1000^® Yield Factor ETF

	Shares		Value
Health Care Equipment & Services (Continued)
Medtronic PLC	669	$	60,932
Total Health Care Equipment & Services			105,948
Household & Personal Products—3.9%
Clorox Co. (The)2	79		12,676
Colgate-Palmolive Co.	476		32,625
Coty, Inc., Class A2	319		3,668
Kimberly-Clark Corp.	241		29,860
Procter & Gamble Co. (The)	1,733		180,319
Total Household & Personal Products			259,148
Insurance—2.6%
Aflac, Inc.	361		18,050
American International Group, Inc.	486		20,927
Chubb Ltd.	234		32,779
Cincinnati Financial Corp.	94		8,074
Fidelity National Financial, Inc.	160		5,848
MetLife, Inc.	569		24,222
Old Republic International Corp.	191		3,996
Principal Financial Group, Inc.2	188		9,436
Prudential Financial, Inc.	276		25,359
Travelers Cos., Inc. (The)	138		18,928
Total Insurance			167,619
Materials—1.5%
Air Products & Chemicals, Inc.	120		22,915
CF Industries Holdings, Inc.	141		5,764
International Paper Co.	275		12,724
Linde PLC	136		23,927
LyondellBasell Industries NV, Class A	208		17,489
Nucor Corp.	169		9,861
WestRock Co.	151		5,791
Total Materials			98,471
Media & Entertainment—1.7%
Comcast Corp., Class A	2,241		89,595
Interpublic Group of Cos., Inc. (The)	249		5,231
Omnicom Group, Inc.2	144		10,511
Viacom, Inc., Class B	216		6,063
Total Media & Entertainment			111,400
Pharmaceuticals, Biotechnology & Life Sciences—12.9%
AbbVie, Inc.	918		73,982
Amgen, Inc.	381		72,382
Bristol-Myers Squibb Co.	1,016		48,473
Eli Lilly & Co.	535		69,422
Gilead Sciences, Inc.	826		53,698
Johnson & Johnson	1,600		223,664
Merck & Co., Inc.	1,720		143,053
Pfizer, Inc.	3,919		166,440
Total Pharmaceuticals, Biotechnology & Life Sciences			851,114
Real Estate—8.4%
Alexandria Real Estate Equities, Inc.	61		8,696
American Campus Communities, Inc.	99		4,710
American Tower Corp.	204		40,200
Apartment Investment & Management Co., Class A	104		5,230
Apple Hospitality REIT, Inc.	169		2,755
AvalonBay Communities, Inc.	91		18,266
Boston Properties, Inc.	86		11,514
Brixmor Property Group, Inc.	238		4,372
Camden Property Trust	59		5,988
Colony Capital, Inc.	401		2,133
	Shares		Value
Real Estate (Continued)
Crown Castle International Corp.	286	$	36,608
CubeSmart	124		3,973
Digital Realty Trust, Inc.	138		16,422
Duke Realty Corp.	210		6,422
EPR Properties	58		4,460
Equinix, Inc.	39		17,673
Equity Residential	229		17,248
Essex Property Trust, Inc.	40		11,570
Extra Space Storage, Inc.	79		8,051
Federal Realty Investment Trust	48		6,617
Gaming and Leisure Properties, Inc.	160		6,171
HCP, Inc.	366		11,456
Healthcare Trust of America, Inc., Class A	150		4,289
Highwoods Properties, Inc.	69		3,228
Hospitality Properties Trust	129		3,394
Host Hotels & Resorts, Inc.	498		9,412
Iron Mountain, Inc.2	224		7,943
Kimco Realty Corp.	323		5,976
Lamar Advertising Co., Class A2	63		4,993
Liberty Property Trust	99		4,794
Life Storage, Inc.	33		3,210
Macerich Co. (The)2	103		4,465
Medical Properties Trust, Inc.	288		5,331
Mid-America Apartment Communities, Inc.	81		8,856
National Retail Properties, Inc.	111		6,148
Omega Healthcare Investors, Inc.	158		6,028
Outfront Media, Inc.	110		2,574
Park Hotels & Resorts, Inc.	154		4,786
Prologis, Inc.	315		22,664
Public Storage	103		22,431
Realty Income Corp.	210		15,448
Regency Centers Corp.	104		7,019
Retail Properties of America, Inc., Class A	166		2,024
Retail Value, Inc.	11		343
Senior Housing Properties Trust	190		2,238
Simon Property Group, Inc.	226		41,179
SITE Centers Corp.2	124		1,689
SL Green Realty Corp.	55		4,946
Spirit Realty Capital, Inc.	69		2,741
STORE Capital Corp.	130		4,355
Taubman Centers, Inc.	44		2,327
UDR, Inc.	175		7,956
Uniti Group, Inc.	135		1,511
Ventas, Inc.	274		17,484
VEREIT, Inc.	775		6,487
Vornado Realty Trust	116		7,823
Weingarten Realty Investors	90		2,643
Welltower, Inc.	289		22,426
Weyerhaeuser Co.	495		13,038
WP Carey, Inc.	83		6,501
Total Real Estate			551,235
Retailing—2.5%
Gap, Inc. (The)	143		3,744
Genuine Parts Co.	89		9,971
Home Depot, Inc. (The)	534		102,469
Kohl's Corp.	110		7,565
L Brands, Inc.	184		5,075

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 1000^® Yield Factor ETF

	Shares		Value
Retailing (Continued)
Macy's, Inc.	220	$	5,286
Target Corp.	350		28,091
Total Retailing			162,201
Semiconductors & Semiconductor Equipment—5.9%
Broadcom, Inc.	258		77,583
Intel Corp.	2,938		157,771
Maxim Integrated Products, Inc.	206		10,953
QUALCOMM, Inc.	1,379		78,644
Texas Instruments, Inc.	616		65,339
Total Semiconductors & Semiconductor Equipment			390,290
Software & Services—2.2%
International Business Machines Corp.	881		124,309
Paychex, Inc.	198		15,879
Western Union Co. (The)	310		5,726
Total Software & Services			145,914
Technology Hardware & Equipment—4.0%
Cisco Systems, Inc.	3,841		207,376
Corning, Inc.	583		19,297
HP, Inc.	1,203		23,374
Western Digital Corp.	215		10,333
Xerox Corp.	151		4,829
Total Technology Hardware & Equipment			265,209
Telecommunication Services—5.6%
AT&T, Inc.	5,684		178,251
CenturyLink, Inc.2	784		9,400
Verizon Communications, Inc.	3,085		182,416
Total Telecommunication Services			370,067
Transportation—1.0%
Delta Air Lines, Inc.	310		16,011
Macquarie Infrastructure Corp.	65		2,679
United Parcel Service, Inc., Class B	421		47,043
Total Transportation			65,733
Utilities—7.5%
AES Corp.	456		8,244
Alliant Energy Corp.	145		6,834
Ameren Corp.	151		11,106
American Electric Power Co., Inc.	330		27,637
CenterPoint Energy, Inc.2	305		9,364
CMS Energy Corp.	176		9,775
Consolidated Edison, Inc.	210		17,810
Dominion Energy, Inc.	564		43,236
DTE Energy Co.	118		14,719
Duke Energy Corp.	513		46,170
Edison International	216		13,375
Entergy Corp.	130		12,432
Evergy, Inc.	161		9,346
Eversource Energy	208		14,758
Exelon Corp.	616		30,880
FirstEnergy Corp.	339		14,106
NextEra Energy, Inc.	258		49,877
NiSource, Inc.2	218		6,248
OGE Energy Corp.	136		5,864
PG&E Corp.1	281		5,002
Pinnacle West Capital Corp.	74		7,073
PPL Corp.2	541		17,171
Public Service Enterprise Group, Inc.	326		19,368
Sempra Energy	168		21,144
Southern Co. (The)	764		39,484
	Shares		Value
Utilities (Continued)
WEC Energy Group, Inc.	205	$	16,211
Xcel Energy, Inc.	325		18,268
Total Utilities			495,502
Total Common Stocks
(Cost $6,400,088)			6,573,815
Money Market Fund—0.2%
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%3
(Cost $11,854)	11,854		11,854
Investment of Cash Collateral for Securities Loaned—0.0%4
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%3
(Cost $2,354)	2,354		2,354
Total Investments—99.9% (Cost $6,414,296)			6,588,023
Other Assets in Excess of Liabilities—0.1%			6,517
Net Assets—100.0%		$	6,594,540

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 1000^® Yield Factor ETF

PLC	-	Public Limited Company
REIT	-	Real Estate Investment Trust

1.	Non-income producing security.
2.	All or a portion of the security was on loan. The aggregate value of the securities on loan was $149,512; total value of the collateral held by the Fund was $152,721. The total value of the collateral includes non-cash U.S. Treasury securities collateral having a value of $150,367.
3.	Rate shown represents annualized 7-day yield as of March 31, 2019.
4.	Less than 0.05%

Schedule of Investments March 31, 2019 Unaudited

Oppenheimer Russell 1000^® Dynamic Multifactor ETF

	Shares		Value
COMMON STOCKS—99.8%
Automobiles & Components—0.1%
Garrett Motion, Inc.1		4,628	$	68,170
Gentex Corp.		19,042		393,789
Lear Corp.		3,202		434,543
Thor Industries, Inc.		2,636		164,407
Visteon Corp.1,2		1,942		130,794
Total Automobiles & Components				1,191,703
Capital Goods—9.1%
3M Co.		56,873		11,817,072
A.O. Smith Corp.		11,757		626,883
Allison Transmission Holdings, Inc.		7,829		351,679
AMETEK, Inc.		10,521		872,927
Boeing Co. (The)		53,605		20,446,019
BWX Technologies, Inc.		5,938		294,406
Cummins, Inc.		13,719		2,165,819
Donaldson Co., Inc.2		11,035		552,412
Emerson Electric Co.		45,739		3,131,749
Fastenal Co.2		25,458		1,637,204
General Dynamics Corp.		38,825		6,572,296
Graco, Inc.		20,190		999,809
Honeywell International, Inc.		47,673		7,576,193
Huntington Ingalls Industries, Inc.		2,888		598,394
IDEX Corp.		6,612		1,003,305
Illinois Tool Works, Inc.		29,366		4,214,902
Ingersoll-Rand PLC		17,654		1,905,749
ITT, Inc.		3,879		224,982
Jacobs Engineering Group, Inc.		5,323		400,236
Lennox International, Inc.		2,435		643,814
Lockheed Martin Corp.		31,025		9,312,464
nVent Electric PLC2		7,870		212,333
Pentair PLC		7,119		316,867
Raytheon Co.		27,382		4,985,715
Resideo Technologies, Inc.1		7,870		151,812
Rockwell Automation, Inc.		9,225		1,618,618
Snap-on, Inc.2		4,524		708,096
Toro Co. (The)		17,677		1,216,885
Watsco, Inc.2		3,196		457,699
Xylem, Inc.		7,871		622,124
Total Capital Goods				85,638,463
Commercial & Professional Services—0.9%
Copart, Inc.1,2		20,971		1,270,633
Equifax, Inc.		8,497		1,006,894
Republic Services, Inc.		11,156		896,719
Robert Half International, Inc.		9,798		638,438
Rollins, Inc.2		19,622		816,668
Waste Management, Inc.		40,555		4,214,070
Total Commercial & Professional Services				8,843,422
Consumer Durables & Apparel—2.0%
Carter’s, Inc.		2,613		263,364
Garmin Ltd.		7,213		622,843
Hasbro, Inc.2		8,419		715,783
Leggett & Platt, Inc.2		6,597		278,525
NIKE, Inc., Class B		170,704		14,374,984
NVR, Inc.1		294		813,498
VF Corp.		23,538		2,045,688
Total Consumer Durables & Apparel				19,114,685
Consumer Services—4.1%
Carnival Corp.		22,237		1,127,861
Darden Restaurants, Inc.		8,542		1,037,597
		Shares		Value
Consumer Services (Continued)
Domino's Pizza, Inc.2		3,266	$	842,954
Grand Canyon Education, Inc.1		2,573		294,634
Hyatt Hotels Corp., Class A		2,636		191,294
Marriott International, Inc., Class A		20,219		2,529,195
McDonald's Corp.		65,764		12,488,583
Six Flags Entertainment Corp.		3,359		165,767
Starbucks Corp.		228,405		16,979,628
Wyndham Hotels & Resorts, Inc.		5,235		261,698
Yum! Brands, Inc.		27,463		2,741,082
Total Consumer Services				38,660,293
Diversified Financials—2.5%
Cboe Global Markets, Inc.		9,071		865,736
Eaton Vance Corp.		11,775		474,650
Evercore, Inc., Class A		1,948		177,268
FactSet Research Systems, Inc.		2,605		646,743
Franklin Resources, Inc.		28,734		952,245
MarketAxess Holdings, Inc.2		2,008		494,129
Moody's Corp.		22,967		4,159,094
Morningstar, Inc.		2,625		330,724
MSCI, Inc.		11,759		2,338,159
S&P Global, Inc.		38,778		8,164,708
SEI Investments Co.		16,328		853,138
T. Rowe Price Group, Inc.		36,541		3,658,485
Total Diversified Financials				23,115,079
Energy—6.6%
Chevron Corp.		139,907		17,233,744
Exxon Mobil Corp.		498,988		40,318,230
Occidental Petroleum Corp.		45,820		3,033,284
Phillips 66		18,338		1,745,228
Total Energy				62,330,486
Food & Staples Retailing—3.7%
Costco Wholesale Corp.		67,831		16,424,598
Sysco Corp.		21,672		1,446,823
US Foods Holding Corp.1		9,729		339,639
Walgreens Boots Alliance, Inc.		52,248		3,305,731
Walmart, Inc.		137,397		13,400,330
Total Food & Staples Retailing				34,917,121
Food, Beverage & Tobacco—4.5%
Altria Group, Inc.		151,317		8,690,135
Brown-Forman Corp., Class A		3,854		197,209
Brown-Forman Corp., Class B2		20,345		1,073,809
Campbell Soup Co.		13,723		523,258
General Mills, Inc.		31,997		1,655,845
Hershey Co. (The)		15,023		1,725,091
Hormel Foods Corp.		30,051		1,345,083
Ingredion, Inc.		3,915		370,711
Lamb Weston Holdings, Inc.		16,389		1,228,192
PepsiCo, Inc.		97,741		11,978,160
Philip Morris International, Inc.		157,879		13,954,925
Total Food, Beverage & Tobacco				42,742,418
Health Care Equipment & Services—4.1%
Baxter International, Inc.		43,783		3,559,996
Cantel Medical Corp.		2,009		134,382
Cerner Corp.1		21,566		1,233,791
Chemed Corp.		1,842		589,569
Cigna Corp.		14,762		2,374,025
Cooper Cos., Inc. (The)		2,482		735,094
CVS Health Corp.		50,357		2,715,753
Danaher Corp.		31,085		4,103,841

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 1000^® Dynamic Multifactor ETF

	Shares		Value
Health Care Equipment & Services (Continued)
ICU Medical, Inc.1		682	$	163,223
McKesson Corp.		9,775		1,144,261
Medtronic PLC		57,474		5,234,732
Stryker Corp.		15,738		3,108,570
UnitedHealth Group, Inc.		43,176		10,675,698
Varian Medical Systems, Inc.1		13,021		1,845,336
West Pharmaceutical Services, Inc.		7,926		873,445
Total Health Care Equipment & Services				38,491,716
Household & Personal Products—5.3%
Clorox Co. (The)		15,661		2,512,964
Colgate-Palmolive Co.		120,978		8,291,832
Kimberly-Clark Corp.		30,127		3,732,735
Procter & Gamble Co. (The)		336,348		34,997,010
Total Household & Personal Products				49,534,541
Insurance—2.1%
Aon PLC		20,662		3,527,003
Arthur J. Gallagher & Co.		7,900		616,990
Brown & Brown, Inc.		13,008		383,866
Erie Indemnity Co., Class A		4,588		819,050
Fidelity National Financial, Inc.		14,990		547,885
Marsh & McLennan Cos., Inc.		99,437		9,337,134
Progressive Corp. (The)		24,889		1,794,248
Torchmark Corp.		19,688		1,613,432
White Mountains Insurance Group Ltd.		655		606,189
Total Insurance				19,245,797
Materials—1.1%
AptarGroup, Inc.		3,210		341,512
Avery Dennison Corp.		3,974		449,062
Ecolab, Inc.		13,094		2,311,615
International Flavors & Fragrances, Inc.		3,996		514,645
Linde PLC		20,303		3,571,907
LyondellBasell Industries NV, Class A		18,364		1,544,045
PPG Industries, Inc.		13,697		1,545,980
Scotts Miracle-Gro Co., (The)2		2,029		159,439
WR Grace & Co.		3,343		260,887
Total Materials				10,699,092
Media & Entertainment—6.7%
Alphabet, Inc., Class A1		18,401		21,655,953
Alphabet, Inc., Class C1		19,786		23,215,112
Interpublic Group of Cos., Inc. (The)		19,034		399,904
John Wiley & Sons, Inc., Class A		4,616		204,119
Liberty Broadband Corp., Class C1		9,181		842,265
Madison Square Garden Co. (The), Class A1		2,005		587,726
News Corp., Class A		25,491		317,108
Omnicom Group, Inc.		11,831		863,545
Sirius XM Holdings, Inc.2		85,735		486,117
Walt Disney Co. (The)		128,805		14,301,219
Total Media & Entertainment				62,873,068
Pharmaceuticals, Biotechnology & Life Sciences—11.4%
Agilent Technologies, Inc.		20,248		1,627,534
Amgen, Inc.		33,264		6,319,495
Bristol-Myers Squibb Co.		117,724		5,616,612
Eli Lilly & Co.		71,068		9,221,784
Johnson & Johnson		355,018		49,627,966
Merck & Co., Inc.		183,107		15,229,009
Mettler-Toledo International, Inc.1		2,469		1,785,087
Pfizer, Inc.		307,858		13,074,729
Waters Corp.1		5,225		1,315,185
		Shares		Value
Pharmaceuticals, Biotechnology & Life Sciences (Continued)
Zoetis, Inc.		34,737	$	3,496,974
Total Pharmaceuticals, Biotechnology & Life Sciences				107,314,375
Real Estate—1.8%
AvalonBay Communities, Inc.		6,623		1,329,435
EPR Properties		3,231		248,464
Equity LifeStyle Properties, Inc.		5,849		668,541
Extra Space Storage, Inc.		7,135		727,128
Gaming and Leisure Properties, Inc.		9,815		378,564
Lamar Advertising Co., Class A		9,203		729,430
Prologis, Inc.		30,668		2,206,563
Public Storage		24,455		5,325,810
Retail Properties of America, Inc., Class A		14,322		174,585
Simon Property Group, Inc.		23,517		4,285,032
Weingarten Realty Investors		11,148		327,417
Total Real Estate				16,400,969
Retailing—7.0%
AutoZone, Inc.1		1,315		1,346,718
Dollar General Corp.		14,035		1,674,375
eBay, Inc.		46,480		1,726,267
Home Depot, Inc. (The)		181,318		34,793,111
Lowe's Cos., Inc.		54,127		5,925,283
O'Reilly Automotive, Inc.1		5,674		2,203,214
Pool Corp.		3,273		539,947
Ross Stores, Inc.		45,053		4,194,434
Target Corp.		24,780		1,988,843
Tiffany & Co.2		6,591		695,680
TJX Cos., Inc. (The)		197,122		10,488,862
Tractor Supply Co.		6,504		635,831
Total Retailing				66,212,565
Semiconductors & Semiconductor Equipment—3.5%
Intel Corp.		324,135		17,406,049
Maxim Integrated Products, Inc.		11,787		626,715
MKS Instruments, Inc.		3,321		309,019
Texas Instruments, Inc.		120,922		12,826,197
Xilinx, Inc.		16,991		2,154,289
Total Semiconductors & Semiconductor Equipment				33,322,269
Software & Services—15.2%
Accenture PLC, Class A		93,054		16,379,365
Adobe, Inc.1		37,854		10,087,712
Amdocs Ltd.		21,016		1,137,176
ANSYS, Inc.1		9,210		1,682,759
Aspen Technology, Inc.1		5,798		604,500
Automatic Data Processing, Inc.		69,916		11,168,382
Broadridge Financial Solutions, Inc.		16,922		1,754,642
Cognizant Technology Solutions Corp., Class A		46,498		3,368,780
Fiserv, Inc.1,2		29,393		2,594,814
Intuit, Inc.		31,819		8,317,805
Jack Henry & Associates, Inc.		14,402		1,998,134
Mastercard, Inc., Class A		147,670		34,768,902
Paychex, Inc.		55,620		4,460,724
Red Hat, Inc.1		10,482		1,915,061
Synopsys, Inc.1		17,014		1,959,162
Total System Services, Inc.		9,216		875,612
Tyler Technologies, Inc.1		1,910		390,404
VeriSign, Inc.1		5,583		1,013,649
Visa, Inc., Class A2		249,451		38,961,752
Total Software & Services				143,439,335

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 1000^® Dynamic Multifactor ETF

	Shares		Value
Technology Hardware & Equipment—4.9%
Amphenol Corp., Class A		25,434	$	2,401,987
Apple, Inc.		212,569		40,377,482
Dolby Laboratories, Inc., Class A		5,233		329,522
F5 Networks, Inc.1		3,334		523,205
FLIR Systems, Inc.		11,051		525,807
Littelfuse, Inc.		1,363		248,720
Motorola Solutions, Inc.		6,925		972,408
National Instruments Corp.		8,592		381,141
Total Technology Hardware & Equipment				45,760,272
Transportation—1.5%
C.H. Robinson Worldwide, Inc.		6,517		566,914
Expeditors International of Washington, Inc.		26,138		1,983,874
FedEx Corp.		17,002		3,084,333
JB Hunt Transport Services, Inc.		9,087		920,422
Landstar System, Inc.		3,330		364,269
Old Dominion Freight Line, Inc.		4,648		671,125
Union Pacific Corp.		37,991		6,352,095
Total Transportation				13,943,032
Utilities—1.7%
Alliant Energy Corp.		9,840		463,759
Ameren Corp.		12,506		919,816
American Water Works Co., Inc.		8,516		887,878
Aqua America, Inc.2		7,913		288,350
Consolidated Edison, Inc.		30,106		2,553,290
DTE Energy Co.		10,373		1,293,928
Edison International		17,003		1,052,826
Evergy, Inc.		13,804		801,322
PG&E Corp.1		22,171		394,644
Pinnacle West Capital Corp.		5,236		500,457
Sempra Energy		12,455		1,567,586
Southern Co. (The)		43,745		2,260,742
UGI Corp.		9,077		503,047
WEC Energy Group, Inc.		13,774		1,089,248
Xcel Energy, Inc.		24,271		1,364,273
Total Utilities				15,941,166
Total Common Stocks
(Cost $881,540,851)				939,731,867
Money Market Fund—0.1%
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%3
(Cost $1,001,493)		1,001,493		1,001,493
Total Investments—99.9% (Cost $882,542,344)				940,733,360
Other Assets in Excess of Liabilities—0.1%				658,665
Net Assets—100.0%			$	941,392,025

PLC - Public Limited Company

1.	Non-income producing security.
2.	All or a portion of the security was on loan. The aggregate value of the securities on loan was $46,043,147; total value of the collateral held by the Fund was $46,979,759. The total value of the collateral includes non-cash U.S. Treasury securities collateral having a value of $46,979,759.
3.	Rate shown represents annualized 7-day yield as of March 31, 2019.

Schedule of Investments March 31, 2019 Unaudited

Oppenheimer Russell 2000^® Dynamic Multifactor ETF

	Shares		Value
COMMON STOCKS—99.7%
Automobiles & Components—1.0%
Dorman Products, Inc.1,2		518	$	45,631
LCI Industries1		583		44,786
Standard Motor Products, Inc.		560		27,496
Total Automobiles & Components				117,913
Banks—13.5%
1st Source Corp.		128		5,749
Allegiance Bancshares, Inc.2		65		2,192
American National Bankshares, Inc.		90		3,143
Ameris Bancorp		297		10,202
Arrow Financial Corp.		109		3,585
Atlantic Capital Bancshares, Inc.2		200		3,566
BancFirst Corp.		152		7,927
BancorpSouth Bank		704		19,867
Bank of Marin Bancorp		108		4,395
Banner Corp.		255		13,813
Bar Harbor Bankshares1		151		3,906
Berkshire Hills Bancorp, Inc.1		334		9,098
Blue Hills Bancorp, Inc.		192		4,589
Boston Private Financial Holdings, Inc.		569		6,236
Bridge Bancorp, Inc.		117		3,428
Brookline Bancorp, Inc.		646		9,302
Bryn Mawr Bank Corp.		172		6,214
Cadence BanCorp		775		14,376
Camden National Corp.		123		5,132
Capitol Federal Financial, Inc.		1,208		16,127
Carolina Financial Corp.		103		3,563
Cathay General Bancorp1		606		20,550
CenterState Bank Corp.		774		18,429
Central Pacific Financial Corp.		216		6,229
Chemical Financial Corp.		547		22,515
Citizens & Northern Corp.		109		2,729
City Holding Co.		134		10,210
CNB Financial Corp.		111		2,805
Columbia Banking System, Inc.1		541		17,685
Community Bank System, Inc.1		429		25,641
Community Trust Bancorp, Inc.		135		5,543
ConnectOne Bancorp, Inc.		232		4,570
Customers Bancorp, Inc.2		195		3,570
CVB Financial Corp.		826		17,387
Dime Community Bancshares, Inc.		266		4,982
Eagle Bancorp, Inc.1,2		261		13,102
Enterprise Financial Services Corp.		193		7,869
Equity Bancshares, Inc., Class A2		101		2,909
Essent Group Ltd.2		1,483		64,436
Farmers National Banc Corp.		198		2,730
Fidelity Southern Corp.		138		3,780
Fifth Third Bancorp		901		22,723
Financial Institutions, Inc.		118		3,207
First Bancorp		225		7,821
First Bancshares, Inc. (The)		97		2,997
First Busey Corp.		323		7,881
First Commonwealth Financial Corp.		631		7,951
First Community Bankshares, Inc		124		4,109
First Defiance Financial Corp.		167		4,800
First Financial Bancorp1		742		17,853
First Financial Bankshares, Inc.1		511		29,526
First Financial Corp.1		102		4,284
First Foundation, Inc.1		267		3,623
		Shares		Value
Banks (Continued)
First Interstate BancSystem, Inc., Class A		278	$	11,070
First Merchants Corp.		424		15,624
First Midwest Bancorp, Inc.		828		16,941
First of Long Island Corp. (The)		186		4,079
Flagstar Bancorp, Inc.		204		6,716
Flushing Financial Corp.		197		4,320
Fulton Financial Corp.		1,399		21,657
German American Bancorp, Inc.		162		4,763
Glacier Bancorp, Inc.		678		27,167
Great Southern Bancorp, Inc.		85		4,412
Great Western Bancorp, Inc.		422		13,331
Hancock Whitney Corp.		576		23,270
Hanmi Financial Corp.		226		4,807
Heartland Financial USA, Inc.1		234		9,980
Heritage Commerce Corp.		326		3,945
Heritage Financial Corp.1		282		8,500
Hilltop Holdings, Inc.		451		8,231
Home Bancorp, Inc.		66		2,195
Home BancShares, Inc.1		1,140		20,030
HomeStreet, Inc.2		173		4,559
HomeTrust Bancshares, Inc.		142		3,578
Hope Bancorp, Inc.1		917		11,994
Horizon Bancorp		268		4,312
IBERIABANK Corp.		413		29,616
Independent Bank Corp.		220		17,822
Independent Bank Corp.		162		3,483
Independent Bank Group, Inc.		235		12,053
International Bancshares Corp.		396		15,060
Investors Bancorp, Inc.		2,190		25,952
Kearny Financial Corp.1		745		9,588
Lakeland Bancorp, Inc.		351		5,240
Lakeland Financial Corp.1		185		8,366
LegacyTexas Financial Group, Inc.		308		11,516
Live Oak Bancshares, Inc.1		215		3,141
Macatawa Bank Corp.		303		3,012
Mercantile Bank Corp.		110		3,599
Meridian Bancorp, Inc.		414		6,496
Meta Financial Group, Inc.		147		2,893
MGIC Investment Corp.2		4,316		56,928
Midland States Bancorp, Inc.		140		3,368
MidWestOne Financial Group, Inc.		83		2,262
National Bank Holdings Corp., Class A		228		7,583
National Bankshares, Inc.		75		3,214
National Commerce Corp.2		116		4,548
NBT Bancorp, Inc.1		350		12,604
Nicolet Bankshares, Inc.1,2		67		3,993
NMI Holdings, Inc., Class A2		413		10,684
Northfield Bancorp, Inc.1		391		5,435
Northwest Bancshares, Inc.1		864		14,662
OceanFirst Financial Corp.		386		9,287
Old Line Bancshares, Inc.		126		3,141
Old National Bancorp1		1,137		18,647
Old Second Bancorp, Inc.		184		2,317
Oritani Financial Corp.1		348		5,787
Pacific Premier Bancorp, Inc.		337		8,941
Park National Corp.1		113		10,707
PCSB Financial Corp.		138		2,701
Peapack Gladstone Financial Corp.		128		3,356
PennyMac Financial Services, Inc.		135		3,002

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 2000^® Dynamic Multifactor ETF

	Shares		Value
Banks (Continued)
Peoples Bancorp, Inc.		141	$	4,367
Peoples Financial Services Corp.		71		3,212
People's Utah Bancorp		121		3,191
Preferred Bank		115		5,172
Provident Financial Services, Inc.		525		13,592
QCR Holdings, Inc.		111		3,765
Radian Group, Inc.		1,821		37,768
Renasant Corp.		400		13,540
Republic Bancorp, Inc., Class A		76		3,399
S&T Bancorp, Inc.1		287		11,345
Sandy Spring Bancorp, Inc.		285		8,915
Seacoast Banking Corp. of Florida1,2		365		9,618
ServisFirst Bancshares, Inc.		362		12,221
Sierra Bancorp		101		2,454
Simmons First National Corp., Class A1		634		15,520
South State Corp.		294		20,092
Southern First Bancshares, Inc.2		79		2,676
Southern National Bancorp of Virginia, Inc.		163		2,388
Southside Bancshares, Inc.1		225		7,477
Stock Yards Bancorp, Inc.		177		5,984
Tompkins Financial Corp.1		117		8,900
TowneBank		567		14,033
TriCo Bancshares		166		6,522
TriState Capital Holdings, Inc.2		144		2,942
Triumph Bancorp, Inc.1,2		144		4,232
TrustCo Bank Corp. NY		737		5,719
Trustmark Corp.1		556		18,698
UMB Financial Corp.1		338		21,646
Union Bankshares Corp.		598		19,333
United Bankshares, Inc.1		840		30,442
United Community Banks, Inc.		562		14,011
United Community Financial Corp.		334		3,123
United Financial Bancorp, Inc.		416		5,970
Univest Corp. of Pennsylvania		244		5,968
Valley National Bancorp		2,731		26,163
Veritex Holdings, Inc.		158		3,827
Walker & Dunlop, Inc.		234		11,913
Washington Federal, Inc.1		716		20,685
Washington Trust Bancorp, Inc.		139		6,693
Waterstone Financial, Inc.		253		4,164
WesBanco, Inc.		367		14,588
West Bancorporation, Inc.		115		2,378
Westamerica Bancorporation1		208		12,854
Western New England Bancorp, Inc.		236		2,178
WSFS Financial Corp.		399		15,401
Total Banks				1,586,420
Capital Goods—8.8%
AAON, Inc.1		708		32,695
Aegion Corp.2		387		6,800
Alamo Group, Inc.		152		15,191
Altra Industrial Motion Corp.		355		11,023
Applied Industrial Technologies, Inc.		702		41,748
Argan, Inc.		352		17,582
Astec Industries, Inc.		418		15,784
Barnes Group, Inc.		833		42,825
CSW Industrials, Inc.2		575		32,942
Douglas Dynamics, Inc.		300		11,421
EMCOR Group, Inc.		1,551		113,347
Encore Wire Corp.		434		24,834
		Shares		Value
Capital Goods (Continued)
EnerSys		565	$	36,815
Foundation Building Materials, Inc.1,2		341		3,355
Gencor Industries, Inc.2		223		2,756
Gorman-Rupp Co. (The)		343		11,641
Graham Corp.		153		3,003
Granite Construction, Inc.		870		37,541
Hillenbrand, Inc.		1,158		48,092
Hurco Cos., Inc.		119		4,799
Insteel Industries, Inc.		219		4,582
KBR, Inc.		1,684		32,148
Lindsay Corp.1		141		13,647
Lydall, Inc.2		322		7,554
Miller Industries, Inc.		188		5,800
Mueller Industries, Inc.		1,818		56,976
National Presto Industries, Inc.1		128		13,894
Omega Flex, Inc.		47		3,563
Primoris Services Corp.		796		16,461
Raven Industries, Inc.		772		29,622
RBC Bearings, Inc.2		513		65,238
Simpson Manufacturing Co., Inc.		1,303		77,229
Sun Hydraulics Corp.		596		27,720
Universal Forest Products, Inc.		1,462		43,699
Watts Water Technologies, Inc., Class A		399		32,247
Woodward, Inc.		896		85,021
Total Capital Goods				1,029,595
Commercial & Professional Services—5.7%
Brady Corp., Class A		1,019		47,292
CBIZ, Inc.2		788		15,949
CRA International, Inc.		165		8,339
Deluxe Corp.		1,016		44,419
Ennis, Inc.		738		15,321
Exponent, Inc.		1,687		97,373
Forrester Research, Inc.		191		9,235
Heidrick & Struggles International, Inc.		307		11,767
Herman Miller, Inc.		1,126		39,613
ICF International, Inc.		307		23,356
Insperity, Inc.		636		78,648
Interface, Inc.		785		12,026
Kimball International, Inc., Class B		455		6,434
Korn Ferry		960		42,989
McGrath RentCorp.		410		23,194
Navigant Consulting, Inc.		938		18,263
Resources Connection, Inc.		855		14,142
SP Plus Corp.2		282		9,622
Steelcase, Inc., Class A		1,073		15,612
Tetra Tech, Inc.		896		53,393
UniFirst Corp.		443		68,000
Viad Corp.		354		19,927
Total Commercial & Professional Services				674,914
Consumer Durables & Apparel—3.6%
Bassett Furniture Industries, Inc.		127		2,084
Callaway Golf Co.1		1,146		18,256
Cavco Industries, Inc.2		172		20,215
Deckers Outdoor Corp.2		808		118,768
Ethan Allen Interiors, Inc.		442		8,455
Helen of Troy Ltd.1,2		633		73,403
KB Home1		1,239		29,946
Oxford Industries, Inc.1		272		20,471
Steven Madden Ltd.		2,377		80,438

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 2000^® Dynamic Multifactor ETF

	Shares		Value
Consumer Durables & Apparel (Continued)
Sturm Ruger & Co., Inc.		311	$	16,489
Tupperware Brands Corp.		1,145		29,289
Total Consumer Durables & Apparel				417,814
Consumer Services—6.0%
BJ's Restaurants, Inc.1		389		18,392
Bloomin' Brands, Inc.		1,269		25,951
Brinker International, Inc.		1,053		46,732
Cheesecake Factory, Inc. (The)1		1,113		54,448
Cracker Barrel Old Country Store, Inc.		557		90,017
Dave & Buster's Entertainment, Inc.1		571		28,476
Del Frisco's Restaurant Group, Inc.1,2		546		3,500
Denny's Corp.2		1,134		20,809
Drive Shack, Inc.1,2		850		3,816
Habit Restaurants, Inc., Class A1,2		342		3,700
International Speedway Corp., Class A		509		22,208
Jack in the Box, Inc.1		684		55,445
Lindblad Expeditions Holdings, Inc.2		323		4,926
Monarch Casino & Resort, Inc.2		170		7,466
Papa John’s International, Inc.1		440		23,298
Planet Fitness, Inc., Class A2		1,936		133,042
Potbelly Corp.2		385		3,276
Ruth's Hospitality Group, Inc.		593		15,175
Sotheby's1,2		725		27,369
Texas Roadhouse, Inc.1		1,906		118,534
Total Consumer Services				706,580
Diversified Financials—4.4%
AG Mortgage Investment Trust, Inc.		335		5,641
Anworth Mortgage Asset Corp.		852		3,442
Apollo Commercial Real Estate Finance, Inc.		1,988		36,182
Arbor Realty Trust, Inc.		579		7,510
Ares Commercial Real Estate Corp.		280		4,253
ARMOUR Residential REIT, Inc.		406		7,929
Artisan Partners Asset Management, Inc., Class A		726		18,273
Banco Latinoamericano de Comercio Exterior SA, Class E		240		4,781
Blackstone Mortgage Trust, Inc., Class A		1,197		41,368
BrightSphere Investment Group PLC		1,250		16,950
Cannae Holdings, Inc.2		932		22,610
Capstead Mortgage Corp.		780		6,700
Cherry Hill Mortgage Investment Corp.1		164		2,824
Cohen & Steers, Inc.1		381		16,105
Colony Credit Real Estate, Inc.		460		7,204
Diamond Hill Investment Group, Inc.		60		8,400
Dynex Capital, Inc.		472		2,874
Federated Investors, Inc., Class B1		1,726		50,589
FGL Holdings		1,432		11,270
FirstCash, Inc.		564		48,786
Green Dot Corp., Class A2		275		16,679
Hamilton Lane, Inc., Class A		106		4,619
Houlihan Lokey, Inc.		481		22,054
INTL. FCStone, Inc.2		82		3,178
Invesco Mortgage Capital, Inc.		1,108		17,506
KKR Real Estate Finance Trust, Inc.		152		3,043
Ladder Capital Corp.		695		11,829
Moelis & Co., Class A		601		25,008
Nelnet, Inc., Class A1		107		5,893
New York Mortgage Trust, Inc.		807		4,915
PennyMac Mortgage Investment Trust		544		11,266
Ready Capital Corp.		167		2,450
		Shares		Value
Diversified Financials (Continued)
Redwood Trust, Inc.		665	$	10,740
Stifel Financial Corp.1		435		22,951
Virtus Investment Partners, Inc.		44		4,292
Waddell & Reed Financial, Inc., Class A1		864		14,939
Western Asset Mortgage Capital Corp.		384		3,928
Westwood Holdings Group, Inc.		136		4,797
Total Diversified Financials				513,778
Energy—1.2%
Dril-Quip, Inc.1,2		775		35,534
Evolution Petroleum Corp.		371		2,504
FTS International, Inc.1,2		322		3,220
Liberty Oilfield Services, Inc., Class A		238		3,663
Midstates Petroleum Co., Inc.2		213		2,081
Natural Gas Services Group, Inc.2		154		2,666
Oil States International, Inc.1,2		872		14,789
Par Pacific Holdings, Inc.2		501		8,923
SEACOR Holdings, Inc.2		295		12,472
World Fuel Services Corp.		1,766		51,020
Total Energy				136,872
Food & Staples Retailing—0.5%
PriceSmart, Inc.1		413		24,317
United Natural Foods, Inc.1,2		1,198		15,838
Village Super Market, Inc., Class A		139		3,799
Weis Markets, Inc.		308		12,569
Total Food & Staples Retailing				56,523
Food, Beverage & Tobacco—2.7%
Boston Beer Co., Inc. (The), Class A1,2		200		58,946
Calavo Growers, Inc.1		257		21,550
Fresh Del Monte Produce, Inc.		436		11,785
J&J Snack Foods Corp.1		390		61,948
Lancaster Colony Corp.		367		57,505
National Beverage Corp.1		241		13,913
Sanderson Farms, Inc.1		457		60,251
Tootsie Roll Industries, Inc.1		450		16,758
Vector Group Ltd.1		1,503		16,217
Total Food, Beverage & Tobacco				318,873
Health Care Equipment & Services—6.1%
AngioDynamics, Inc.2		720		16,459
Atrion Corp.		51		44,813
CorVel Corp.2		280		18,267
Cutera, Inc.2		293		5,174
Globus Medical, Inc., Class A2		1,678		82,910
Haemonetics Corp.2		1,654		144,692
HealthEquity, Inc.1,2		402		29,740
HealthStream, Inc.2		542		15,209
LivaNova PLC2		845		82,176
Meridian Bioscience, Inc.		1,295		22,805
National HealthCare Corp.		439		33,311
National Research Corp.		208		8,029
Neogen Corp.2		1,361		78,108
NextGen Healthcare, Inc.1,2		419		7,052
Orthofix Medical, Inc.2		525		29,615
Patterson Cos., Inc.		1,592		34,785
Providence Service Corp. (The)2		166		11,059
Surmodics, Inc.2		261		11,348
US Physical Therapy, Inc.		281		29,513
Utah Medical Products, Inc.		122		10,767
Total Health Care Equipment & Services				715,832
Household & Personal Products—0.6%
Inter Parfums, Inc.		212		16,084

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 2000^® Dynamic Multifactor ETF

	Shares		Value
Household & Personal Products (Continued)
Medifast, Inc.		196	$	25,000
Oil-Dri Corp. of America		66		2,055
WD-40 Co.1		163		27,619
Total Household & Personal Products				70,758
Insurance—3.1%
AMERISAFE, Inc.		208		12,355
Argo Group International Holdings Ltd.		249		17,594
CNO Financial Group, Inc.		1,234		19,966
Employers Holdings, Inc.		256		10,268
Enstar Group Ltd.1,2		141		24,534
FBL Financial Group, Inc., Class A		80		5,018
Horace Mann Educators Corp.		329		11,584
Investors Title Co.		18		2,842
James River Group Holdings Ltd.		207		8,297
Kemper Corp.1		414		31,522
Kinsale Capital Group, Inc.		182		12,480
National General Holdings Corp.		493		11,699
National Western Life Group, Inc., Class A		18		4,724
Navigators Group, Inc. (The)		180		12,577
Primerica, Inc.1		381		46,539
ProAssurance Corp.		594		20,558
RLI Corp.1		415		29,776
Safety Insurance Group, Inc.		182		15,860
Selective Insurance Group, Inc.		615		38,917
State Auto Financial Corp.		117		3,852
Stewart Information Services Corp.		228		9,733
Third Point Reinsurance Ltd.2		1,187		12,321
United Fire Group, Inc.		139		6,076
Total Insurance				369,092
Materials—4.4%
Balchem Corp.		477		44,266
Chase Corp.		159		14,714
Compass Minerals International, Inc.1		511		27,783
FutureFuel Corp.		711		9,527
Greif, Inc., Class A		307		12,664
Hawkins, Inc.		166		6,114
Haynes International, Inc.		182		5,975
Innospec, Inc.		513		42,759
Kaiser Aluminum Corp.		361		37,807
Louisiana-Pacific Corp.		3,168		77,236
Materion Corp.		381		21,740
Quaker Chemical Corp.1		365		73,120
Schnitzer Steel Industries, Inc., Class A		390		9,360
Sensient Technologies Corp.1		658		44,606
Stepan Co.		395		34,570
UFP Technologies, Inc.2		132		4,937
United States Lime & Minerals, Inc.		50		3,856
Warrior Met Coal, Inc.		695		21,128
Worthington Industries, Inc.		531		19,817
Total Materials				511,979
Media & Entertainment—2.1%
Cars.com, Inc.1,2		1,180		26,904
Entravision Communications Corp., Class A		979		3,172
IMAX Corp.2		1,072		24,313
Loral Space & Communications, Inc.2		353		12,726
Marcus Corp. (The)		247		9,892
MSG Networks, Inc., Class A1,2		949		20,641
New York Times Co., (The), Class A		2,079		68,295
Scholastic Corp.		723		28,746
		Shares		Value
Media & Entertainment (Continued)
TEGNA, Inc.		3,279	$	46,234
Total Media & Entertainment				240,923
Pharmaceuticals, Biotechnology & Life Sciences—0.5%
Anika Therapeutics, Inc.1,2		226		6,834
BioSpecifics Technologies Corp.2		94		5,859
Evolus, Inc.1,2		72		1,625
Homology Medicines, Inc.1,2		155		4,298
Luminex Corp.		1,221		28,095
PDL BioPharma, Inc.2		2,538		9,442
Total Pharmaceuticals, Biotechnology & Life Sciences				56,153
Real Estate—12.0%
Acadia Realty Trust		748		20,398
Agree Realty Corp.		398		27,597
Alexander & Baldwin, Inc.1		1,130		28,747
Alexander's, Inc.		30		11,285
American Assets Trust, Inc.		354		16,234
Armada Hoffler Properties, Inc.		418		6,517
Braemar Hotels & Resorts, Inc.		252		3,077
CareTrust REIT, Inc.		483		11,331
CBL & Associates Properties, Inc.		955		1,480
Cedar Realty Trust, Inc.		633		2,152
Chatham Lodging Trust		417		8,023
Chesapeake Lodging Trust		685		19,050
City Office REIT, Inc.		246		2,782
Community Healthcare Trust, Inc.		137		4,917
CoreCivic, Inc.		864		16,805
CorEnergy Infrastructure Trust, Inc.1		89		3,271
Cousins Properties, Inc.		5,668		54,753
DiamondRock Hospitality Co.		1,969		21,324
Easterly Government Properties, Inc.1		370		6,664
EastGroup Properties, Inc.		470		52,471
First Industrial Realty Trust, Inc.		1,980		70,013
Forestar Group, Inc.2		115		1,988
Four Corners Property Trust, Inc.		860		25,456
Franklin Street Properties Corp.		624		4,487
GEO Group, Inc. (The)		970		18,624
Getty Realty Corp.		451		14,445
Gladstone Commercial Corp.		215		4,466
Global Net Lease, Inc.		443		8,373
Hannon Armstrong Sustainable Infrastructure Capital, Inc.		413		10,589
Healthcare Realty Trust, Inc.		1,042		33,459
Hersha Hospitality Trust		427		7,319
HFF, Inc., Class A		504		24,066
Independence Realty Trust, Inc.		821		8,859
InfraREIT, Inc.		231		4,844
Investors Real Estate Trust		66		3,954
iStar, Inc.1		489		4,117
Kennedy-Wilson Holdings, Inc.		833		17,818
Kite Realty Group Trust		578		9,242
Lexington Realty Trust		2,211		20,032
LTC Properties, Inc.		601		27,526
Mack-Cali Realty Corp.		629		13,964
Marcus & Millichap, Inc.2		186		7,576
MedEquities Realty Trust, Inc.		318		3,539
Monmouth Real Estate Investment Corp.		849		11,190
National Health Investors, Inc.		633		49,722
National Storage Affiliates Trust		313		8,924
New Senior Investment Group, Inc.		392		2,136

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 2000^® Dynamic Multifactor ETF

	Shares		Value
Real Estate (Continued)
NexPoint Residential Trust, Inc.		178	$	6,824
Office Properties Income Trust		310		8,568
One Liberty Properties, Inc.		170		4,930
Pebblebrook Hotel Trust		1,507		46,807
Physicians Realty Trust		1,484		27,914
Piedmont Office Realty Trust, Inc., Class A1		1,520		31,692
PotlatchDeltic, Corp.		1,120		42,325
Preferred Apartment Communities, Inc., Class A		305		4,520
PS Business Parks, Inc.		347		54,420
QTS Realty Trust, Inc., Class A		285		12,822
RE/MAX Holdings, Inc., Class A1		272		10,483
Retail Opportunity Investments Corp.		1,064		18,450
Rexford Industrial Realty, Inc.		838		30,009
RLJ Lodging Trust		1,581		27,778
RMR Group, Inc. (The), Class A		93		5,671
RPT Realty		913		10,965
Ryman Hospitality Properties, Inc.		705		57,979
Sabra Health Care REIT, Inc.		1,506		29,322
Saul Centers, Inc.		140		7,192
St Joe Co. (The)1,2		349		5,755
STAG Industrial, Inc.		799		23,690
Summit Hotel Properties, Inc.1		1,294		14,764
Sunstone Hotel Investors, Inc.		2,632		37,901
Tanger Factory Outlet Centers, Inc.		958		20,099
Tejon Ranch Co.2		107		1,883
Terreno Realty Corp.		676		28,419
UMH Properties, Inc.		284		3,999
Universal Health Realty Income Trust		207		15,672
Urban Edge Properties		1,134		21,546
Urstadt Biddle Properties, Inc., Class A		463		9,556
Washington Prime Group, Inc.		1,449		8,187
Washington Real Estate Investment Trust1		681		19,327
Whitestone REIT		282		3,390
Xenia Hotels & Resorts, Inc.		1,100		24,101
Total Real Estate				1,412,566
Retailing—5.4%
American Eagle Outfitters, Inc.		2,671		59,216
Bed Bath & Beyond, Inc.		1,617		27,473
Big Lots, Inc.1		640		24,333
Buckle, Inc. (The)1		600		11,232
Caleres, Inc.1		841		20,764
Cato Corp., (The), Class A		455		6,816
Chico’s FAS, Inc.1		1,587		6,777
Children's Place, Inc. (The)		388		37,745
Citi Trends, Inc.		208		4,016
DSW, Inc., Class A2		1,455		32,330
GameStop Corp., Class A1		1,546		15,707
Genesco, Inc.1,2		427		19,450
Haverty Furniture Cos., Inc.		253		5,536
Hibbett Sports, Inc.1,2		283		6,455
Liberty Expedia Holdings, Inc., Class A2		1,300		55,640
Monro, Inc.1		447		38,674
Murphy USA, Inc.2		491		42,039
Ollie's Bargain Outlet Holdings, Inc.1,2		1,102		94,034
PetMed Express, Inc.1		361		8,224
Sally Beauty Holdings, Inc.1,2		1,590		29,272
Shoe Carnival, Inc.		136		4,628
Signet Jewelers Ltd.		969		26,318
Sleep Number Corp.1,2		593		27,871
		Shares		Value
Retailing (Continued)
Weyco Group, Inc.		157	$	4,861
Winmark Corp.		114		21,499
Total Retailing				630,910
Semiconductors & Semiconductor Equipment—1.9%
Advanced Energy Industries, Inc.1,2		626		31,100
Brooks Automation, Inc.1		836		24,520
Cabot Microelectronics Corp.1		429		48,031
Cohu, Inc.		401		5,915
Diodes, Inc.2		352		12,214
Entegris, Inc.1		1,344		47,967
Nanometrics, Inc.2		207		6,392
NVE Corp.		128		12,530
Photronics, Inc.2		581		5,490
Power Integrations, Inc.1		295		20,632
Rudolph Technologies, Inc.2		322		7,342
Total Semiconductors & Semiconductor Equipment				222,133
Software & Services—3.5%
American Software, Inc., Class A		406		4,852
Appfolio, Inc., Class A1,2		144		11,434
CACI International, Inc., Class A2		246		44,777
Cision Ltd.2		443		6,100
CommVault Systems, Inc.2		344		22,270
EVERTEC, Inc.		788		21,914
ExlService Holdings, Inc.2		496		29,770
j2 Global, Inc.1		376		32,562
ManTech International Corp., Class A		610		32,952
MAXIMUS, Inc.		1,721		122,157
MicroStrategy, Inc., Class A2		85		12,261
NIC, Inc.		573		9,793
Perficient, Inc.2		279		7,642
Progress Software Corp.		553		24,537
QAD, Inc., Class A		93		4,005
Sykes Enterprises, Inc.2		694		19,626
Total Software & Services				406,652
Technology Hardware & Equipment—2.9%
AVX Corp.		1,455		25,230
Badger Meter, Inc.1		626		34,831
Benchmark Electronics, Inc.		1,164		30,555
CTS Corp.		580		17,035
Daktronics, Inc.		554		4,127
ePlus, Inc.2		178		15,760
Fabrinet2		531		27,803
InterDigital, Inc.		349		23,027
Kimball Electronics, Inc.2		490		7,590
MTS Systems Corp.		248		13,506
NETGEAR, Inc.1,2		416		13,778
Park Electrochemical Corp.		486		7,630
PC Connection, Inc.		135		4,951
Rogers Corp.2		288		45,757
Vishay Intertechnology, Inc.		3,154		58,254
Vishay Precision Group, Inc.2		153		5,234
Total Technology Hardware & Equipment				335,068
Telecommunication Services—0.2%
ATN International, Inc.		244		13,759
Boingo Wireless, Inc.1,2		337		7,845
Spok Holdings, Inc.		401		5,462
Total Telecommunication Services				27,066
Transportation—1.1%
Daseke, Inc.1,2		1,260		6,413
Forward Air Corp.		934		60,458

Schedule of Investments March 31, 2019 Unaudited Continued

Oppenheimer Russell 2000^® Dynamic Multifactor ETF

	Shares		Value
Transportation (Continued)
Heartland Express, Inc.1		713	$	13,747
Marten Transport Ltd.		685		12,214
Werner Enterprises, Inc.1		1,150		39,272
Total Transportation				132,104
Utilities—8.5%
ALLETE, Inc.		813		66,853
American States Water Co.1		629		44,848
Artesian Resources Corp., Class A		128		4,770
Avista Corp.		900		36,558
Black Hills Corp.		799		59,182
California Water Service Group1		725		39,353
Chesapeake Utilities Corp.		236		21,526
Clearway Energy, Inc., Class A		174		2,530
Consolidated Water Co. Ltd.		263		3,385
El Paso Electric Co.		740		43,527
IDACORP, Inc.		882		87,794
MGE Energy, Inc.		585		39,762
Middlesex Water Co.		196		10,974
New Jersey Resources Corp.1		1,465		72,942
Northwest Natural Holding Co.		502		32,946
NorthWestern Corp.		868		61,116
ONE Gas, Inc.1		726		64,636
Ormat Technologies, Inc.1		561		30,939
Otter Tail Corp.		569		28,348
PNM Resources, Inc.		1,120		53,021
Portland General Electric Co.		1,468		76,101
RGC Resources, Inc.		112		2,969
SJW Group		232		14,324
South Jersey Industries, Inc.		1,253		40,184
Spire, Inc.		634		52,172
Unitil Corp.		214		11,592
Total Utilities				1,002,352
Total Common Stocks
(Cost $10,640,508)				11,692,870
Money Market Fund—0.2%
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%3
(Cost $20,704)		20,704		20,704
Investment of Cash Collateral for Securities Loaned—0.8%
Dreyfus Government Cash Management Money Market Fund-Institutional Shares, 2.34%3
(Cost $97,911)		97,911		97,911
Total Investments—100.7% (Cost $10,759,123)				11,811,485
Liabilities in Excess of Other Assets—(0.7)%				(81,229	)
Net Assets—100.0%			$	11,730,256

PLC	-	Public Limited Company
REIT	-	Real Estate Investment Trust

1.	All or a portion of the security was on loan. The aggregate value of the securities on loan was $2,746,700; total value of the collateral held by the Fund was $2,802,425. The total value of the collateral includes non-cash U.S. Treasury securities collateral having a value of $2,704,514.
2.	Non-income producing security.
3.	Rate shown represents annualized 7-day yield as of March 31, 2019.

NOTES TO SCHEDULES OF INVESTMENTS (Unaudited)

1. ORGANIZATION

Oppenheimer ETF Trust (the “Trust”) was organized as a Delaware statutory trust on December 15, 2006. The Trust is an open-end management investment company, registered under the Investment Company Act of 1940, as amended (the “Act”), which, as of the date of this report, is comprised of twenty funds (collectively, the “Funds” and each individually a “Fund”). The Funds are investment companies and accordingly follow the Investment Company accounting and reporting guidance of the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ACS”) Topic 946 Financial Services Investment Companies. Oppenheimer S&P 500 Revenue ETF, Oppenheimer S&P MidCap 400 Revenue ETF, Oppenheimer S&P SmallCap 600 Revenue ETF, Oppenheimer Emerging Markets Ultra Dividend ETF, Oppenheimer International Ultra Dividend ETF, Oppenheimer Emerging Markets Revenue ETF, Oppenheimer International Revenue ETF, Oppenheimer Global Revenue ETF, Oppenheimer ESG Revenue ETF, Oppenheimer Global ESG Revenue ETF, Oppenheimer Russell 1000 Momentum Factor ETF, Oppenheimer Russell 1000 Value Factor ETF, Oppenheimer Russell 1000 Low Volatility Factor ETF, Oppenheimer Russell 1000 Size Factor ETF, Oppenheimer Russell 1000 Quality Factor ETF, Oppenheimer Russell 1000 Yield Factor ETF, Oppenheimer Russell 1000 Dynamic Multifactor ETF and Oppenheimer Russell 2000 Dynamic Multifactor ETF are diversified funds under the Act. Oppenheimer S&P Financials Revenue ETF and Oppenheimer S&P Ultra Dividend Revenue ETF, are not diversified. Each Fund’s investment objective is to provide investment results that correspond generally, before fees and expenses, to the performance of the Fund’s corresponding underlying index (each an “Underlying Index” and, collectively, the “Underlying Indexes”). The Trust’s investment adviser is OFI Advisors, LLC (“OFI” or the “Adviser”).

The following is a summary of significant accounting policies followed in the Funds’ preparation of financial statements in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”).

2. Securities Valuation

The Net Asset Value (“NAV”) per share of each Fund is computed by dividing the value of the net assets of each Fund by the total number of outstanding shares of that Fund, rounded to the nearest cent. The Bank of New York Mellon calculates each Fund’s NAV at 4:00 p.m., Eastern Time on each day that the NYSE is open, except in the case of a scheduled early closing of the NYSE, in which case the Fund will calculate the NAV of the shares as of the scheduled early closing time of the NYSE.

Valuation Methods and Inputs. Securities traded on a national securities exchange are valued based on the official closing price. Price information on listed securities is taken from the exchange where the security is primarily traded. Over-the-counter equity securities are valued at the last sales price, or if no sale occurred, at the mean of quoted bid and ask prices. Other portfolio securities and assets for which market quotations are not readily available are valued based on fair value as determined in good faith and in accordance with procedures adopted by the Trust’s Board.

Short-term money market type debt securities are valued at the mean between the “bid” and “asked” prices utilizing evaluated prices obtained from third party pricing services or broker-dealers. Shares of a registered investment company that are not traded on an exchange are valued at that investment company’s net asset value per share.

The authoritative guidance for fair value measurements and disclosures, ASC Topic 820, establishes an authoritative framework for the measurement of fair value, and enhances disclosures about fair value measurements. Furthermore, Topic 820 establishes a hierarchy for inputs used in measuring fair value that maximizes the use of observable

inputs and minimizes the use of unobservable inputs by requiring the most observable inputs be used when available. The Funds utilize various inputs in determining the value of each Fund’s investments. These inputs are summarized in the three broad levels as follows:

Level 1 — quoted prices in active markets for identical securities

Level 2 — other significant observable inputs (including quoted prices in an active market for similar securities, the intrinsic value of securities such as rights, warrants or options, etc.)

Level 3 — significant unobservable inputs (including the Fund’s own assumptions in determining the fair value of investments)

The inputs or methodology used for valuing securities are not necessarily an indication of the risk associated with investing in those securities. The following summarizes inputs used as of March 31, 2019 in valuing the Funds’ assets carried at fair value:

(Level 1)

(Level 2)

(Level 3)

Fund

Common Stocks

Preferred Stocks

Money Market Funds

Rights

Warrants

Common   Stocks

Preferred Stocks

Total

Oppenheimer S&P 500 Revenue ETF

$

999,248,286

$

–

$

1,964,898

$

–

$

–

$

–

$

–

$

1,001,213,184

Oppenheimer S&P MidCap 400 Revenue ETF

355,477,671

–

7,878,198

–

–

–

–

363,355,869

Oppenheimer S&P SmallCap 600 Revenue ETF

437,723,484

–

18,879,232

–

–

–

–

456,602,716

Oppenheimer S&P Financials Revenue ETF

37,606,428

–

58,348

–

–

–

–

37,664,776

Oppenheimer S&P Ultra Dividend Revenue ETF

1,700,351,845

–

29,934,971

–

–

–

–

1,730,286,816

Oppenheimer Emerging Markets Ultra Dividend Revenue ETF

3,533,973

102,195

61,216

–

–

–

–

3,698,121

Oppenheimer International Ultra Dividend Revenue ETF

2,322,362

–

47,054

–

–

–

–

2,369,416

Oppenheimer Emerging Markets Revenue ETF

12,353,659

277,569

38,576

1,648

–

–

1,261

12,672,852

Oppenheimer International Revenue ETF

12,130,900

102,000

252,005

–

–

–

364

12,485,269

Oppenheimer Global Revenue ETF

12,727,716

110,670

160,176

1,242

–

–

575

13,000,379

Oppenheimer ESG Revenue ETF

27,837,325

–

41,888

–

–

–

–

27,879,213

Oppenheimer Global ESG Revenue ETF

22,819,653

142,527

358,074

–

–

–

467

23,320,747

Oppenheimer Russell 1000® Momentum Factor ETF

5,446,238

–

8,179

–

–

–

–

5,454,417

Oppenheimer Russell 1000® Value Factor ETF

5,224,329

–

10,001

–

–

–

–

5,234,330

Oppenheimer Russell 1000® Low Volatility Factor ETF

5,522,052

–

6,149

–

–

–

–

5,528,201

Oppenheimer Russell 1000® Size Factor ETF

5,424,236

–

22,962

–

–

–

–

5,447,198

Oppenheimer Russell 1000® Quality Factor ETF

5,617,226

–

3,753

–

–

–

–

5,620,979

Oppenheimer Russell 1000® Yield Factor ETF

6,573,815

–

14,208

–

–

–

–

6,588,023

Oppenheimer Russell 1000® Dynamic Multifactor ETF

939,731,867

–

1,001,493

–

–

–

–

940,733,360

Oppenheimer Russell 2000® Dynamic Multifactor ETF

11,692,870

–

118,615

–

–

–

–

11,811,485

At March 31, 2019, S&P SmallCap 600 Revenue ETF, Emerging Markets Revenue ETF, International Revenue ETF, Global Revenue ETF and Global ESG Revenue ETF held Level 3 securities. Please refer to each Fund’s Schedule of Investments for additional detailed categorizations.

Please refer to each Fund’s Schedule of Investments to view equity securities segregated by industry type.

The Funds’ policy is to disclose transfers between levels based on valuations at the beginning of the reporting period.

3. Pending Acquisition

On October 18, 2018, Massachusetts Mutual Life Insurance Company, an indirect corporate parent of the Adviser, announced that it has entered into an agreement whereby Invesco Ltd. (“Invesco”), a global investment management company, will acquire the Adviser (the “Transaction”). In connection with the Transaction, on January 11, 2019, the Trust’s Board unanimously approved an Agreement and Plan of Reorganization (the “Agreement”), which provides for the transfer of the assets and liabilities of each Fund to a corresponding, newly formed fund (each, an “Acquiring Fund,” and collectively the “Acquiring Funds”) in the Invesco family of funds (the “Reorganization”) in exchange for shares of the corresponding Acquiring Fund of equal value to the value of the shares of the respective Fund (and cash with respect to any fractional shares) as of the close of business on the closing date. Each Acquiring Fund will be managed by Invesco Capital Management, LLC, and will, as of the closing date, have substantially similar principal investment strategies and risks as each corresponding Fund. After the Reorganization, Invesco Capital Management, LLC will be the investment adviser to each Acquiring Fund, and each Fund will be liquidated and dissolved under applicable law and terminate its registration under the Investment Company Act of 1940, as amended. The Reorganization is expected to be a tax-free reorganization for U.S. federal income tax purposes.

As of 5 p.m. Eastern Standard Time on April 12, 2019, the Reorganization has been approved by shareholders of record of Oppenheimer Emerging Markets Revenue ETF, Oppenheimer Emerging Markets Ultra Dividend Revenue ETF, Oppenheimer ESG Revenue ETF, Oppenheimer Global ESG Revenue ETF, Oppenheimer Global Revenue ETF, Oppenheimer International Revenue ETF, Oppenheimer International Ultra Dividend Revenue ETF, Oppenheimer Russell 1000® Dynamic Multifactor ETF, Oppenheimer Russell 1000® Low Volatility Factor ETF, Oppenheimer Russell 1000® Momentum Factor ETF, Oppenheimer Russell 1000® Quality Factor ETF, Oppenheimer Russell 1000® Size Factor ETF, Oppenheimer Russell 1000® Value Factor ETF, Oppenheimer Russell 1000® Yield Factor ETF, Oppenheimer Russell 2000® Dynamic Multifactor ETF as of January 14, 2019. As of 5 p.m. Eastern Standard Time on May 9, 2019, the Reorganization has been approved by shareholders of record of Oppenheimer S&P 500 Revenue ETF, Oppenheimer S&P Financials Revenue ETF, Oppenheimer S&P MidCap 400 Revenue ETF, Oppenheimer S&P SmallCap 600 Revenue ETF, Oppenheimer S&P Ultra Dividend Revenue ETF. Accordingly, if certain other closing conditions are satisfied or waived, each Reorganization is currently expected to close on or about May 24, 2019, or as soon as practicable thereafter. This is subject to change.