MML Aggressive Allocation Fund – Portfolio of Investments

March 31, 2019 (Unaudited)

	Number of Shares		Value
MUTUAL FUNDS — 100.1%
Equity Funds — 89.6%
MML Blue Chip Growth Fund, Initial Class (a)		481,133	$	8,160,017
MML Equity Income Fund, Initial Class (a)		762,768		8,497,232
MML Equity Index Fund, Class III (a)		187,679		5,981,342
MML Focused Equity Fund, Class II (a)		566,236		3,414,403
MML Foreign Fund, Initial Class (a)		795,825		7,934,380
MML Fundamental Growth Fund, Class II (a)		349,840		3,820,256
MML Fundamental Value Fund, Class II (a)		597,672		8,056,621
MML Global Fund, Class I (a)		730,139		8,593,731
MML Income & Growth Fund, Initial Class (a)		891,085		8,447,482
MML International Equity Fund, Class II (a)		896,080		8,727,823
MML Large Cap Growth Fund, Initial Class (a)		251,032		2,821,595
MML Mid Cap Growth Fund, Initial Class (a)		561,991		9,098,642
MML Mid Cap Value Fund, Initial Class (a)		761,298		8,062,149
MML Small Cap Growth Equity Fund, Initial Class (a)		119,309		1,836,303
MML Small Company Value Fund, Class II (a)		235,765		3,680,284
MML Small/Mid Cap Value Fund, Initial Class (a)		222,474		2,640,767
MML Strategic Emerging Markets Fund, Class II (a)		671,442		7,654,444
Oppenheimer Discovery Mid Cap Growth Fund/VA, Non-Service Shares (a)		35,210		2,882,298
Oppenheimer Global Fund/VA, Non-Service Shares (a)		84,367		3,745,046
Oppenheimer Global Multi-Alternatives Fund/VA, Non-Service Shares (a)		1,344,353		13,107,442
Oppenheimer International Growth Fund/VA, Non-Service Shares (a)		1,737,428		3,926,587
Oppenheimer Main Street Fund/VA, Non-Service Shares (a)		140,372		4,310,836
				135,399,680
Fixed Income Funds — 10.5%
MML Dynamic Bond Fund, Class II (a)		255,237		2,534,503
MML Inflation-Protected and Income Fund, Initial Class (a)		383,832	$	3,853,677
MML Managed Bond Fund, Initial Class (a)		326,160		4,031,605
MML Short-Duration Bond Fund, Class II (a)		297,560		2,901,205
MML Total Return Bond Fund, Class II (a)		235,002		2,465,170
				15,786,160
TOTAL MUTUAL FUNDS (Cost $152,939,384)				151,185,840
TOTAL LONG-TERM INVESTMENTS (Cost $152,939,384)				151,185,840
TOTAL INVESTMENTS — 100.1% (Cost $152,939,384) (b)				151,185,840
Other Assets/(Liabilities) — (0.1)%				(121,565	)
NET ASSETS — 100.0%			$	151,064,275

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

(a) Affiliated issuer. See Note 4 for a summary of transactions in the investments of affiliated issuers.

(b) See Note 3 for aggregate cost for federal tax purposes.

The accompanying notes are an integral part of the portfolio of investments. 

 1

MML American Funds Core Allocation Fund – Portfolio of Investments

March 31, 2019 (Unaudited)

	Number of Shares		Value
MUTUAL FUNDS — 100.1%
Equity Funds — 64.1%
American Funds Blue Chip Income and Growth Fund, Class 1		18,297,187	$	251,037,409
American Funds Growth-Income Fund, Class 1		5,218,207		266,232,930
American Funds International Fund, Class 1		6,510,710		129,693,337
				646,963,676
Fixed Income Funds — 36.0%
American Funds Bond Fund, Class 1		33,495,849		363,095,001
TOTAL MUTUAL FUNDS (Cost $983,293,914)				1,010,058,677
TOTAL LONG-TERM INVESTMENTS (Cost $983,293,914)				1,010,058,677
TOTAL INVESTMENTS — 100.1% (Cost $983,293,914) (a)				1,010,058,677
Other Assets/(Liabilities) — (0.1)%				(1,073,588	)
NET ASSETS — 100.0%			$	1,008,985,089

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets. 

(a) See Note 3 for aggregate cost for federal tax purposes.

The accompanying notes are an integral part of the portfolio of investments.

 2

MML American Funds Growth Fund – Portfolio of Investments

 March 31, 2019 (Unaudited)

	Number of Shares		Value
MUTUAL FUNDS — 100.1%
Equity Funds — 100.1%
American Funds Growth Fund, Class 1		2,308,861	$	183,231,188
TOTAL MUTUAL FUNDS (Cost $164,338,230)				183,231,188
TOTAL LONG-TERM INVESTMENTS (Cost $164,338,230)				183,231,188
TOTAL INVESTMENTS — 100.1% (Cost $164,338,230) (a)				183,231,188
Other Assets/(Liabilities) — (0.1)%				(191,302	)
NET ASSETS — 100.0%			$	183,039,886

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

(a) See Note 3 for aggregate cost for federal tax purposes.

The accompanying notes are an integral part of the portfolio of investments.

 3

MML American Funds International Fund – Portfolio of Investments

March 31, 2019 (Unaudited)

	Number of Shares		Value
MUTUAL FUNDS — 100.1%
Equity Funds — 100.1%
American Funds International Fund, Class 1		3,154,539	$	62,838,416
TOTAL MUTUAL FUNDS (Cost $58,970,969)				62,838,416
TOTAL LONG-TERM INVESTMENTS (Cost $58,970,969)				62,838,416
TOTAL INVESTMENTS — 100.1% (Cost $58,970,969) (a)				62,838,416
Other Assets/(Liabilities) — (0.1)%				(73,631	)
NET ASSETS — 100.0%			$	62,764,785

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

(a) See Note 3 for aggregate cost for federal tax purposes.

The accompanying notes are an integral part of the portfolio of investments.

 4

MML Balanced Allocation Fund – Portfolio of Investments

March 31, 2019 (Unaudited)

	Number of Shares		Value
MUTUAL FUNDS — 100.1%
Equity Funds — 49.7%
MML Blue Chip Growth Fund, Initial Class (a)		929,461	$	15,763,651
MML Equity Income Fund, Initial Class (a)		1,581,477		17,617,658
MML Equity Index Fund, Class III (a)		393,162		12,530,068
MML Focused Equity Fund, Class II (a)		609,432		3,674,875
MML Foreign Fund, Initial Class (a)		1,425,035		14,207,598
MML Fundamental Growth Fund, Class II (a)		913,538		9,975,834
MML Fundamental Value Fund, Class II (a)		1,161,892		15,662,307
MML Global Fund, Class I (a)		1,500,391		17,659,600
MML Income & Growth Fund, Initial Class (a)		1,930,961		18,305,506
MML International Equity Fund, Class II (a)		1,503,031		14,639,522
MML Large Cap Growth Fund, Initial Class (a)		542,575		6,098,538
MML Mid Cap Growth Fund, Initial Class (a)		855,551		13,851,365
MML Mid Cap Value Fund, Initial Class (a)		1,414,843		14,983,189
MML Small Cap Growth Equity Fund, Initial Class (a)		248,598		3,826,207
MML Small Company Value Fund, Class II (a)		398,652		6,222,962
MML Small/Mid Cap Value Fund, Initial Class (a)		350,745		4,163,342
MML Strategic Emerging Markets Fund, Class II (a)		59,009		672,702
Oppenheimer Discovery Mid Cap Growth Fund/VA, Non-Service Shares (a)		59,662		4,883,927
Oppenheimer Global Fund/VA, Non-Service Shares (a)		218,178		9,684,922
Oppenheimer Global Multi-Alternatives Fund/VA, Non-Service Shares (a)		3,782,274		36,877,172
Oppenheimer International Growth Fund/VA, Non-Service Shares (a)		5,934,290		13,411,494
Oppenheimer Main Street Fund/VA, Non-Service Shares (a)		308,314		9,468,314
				264,180,753
Fixed Income Funds — 50.4%
MML Dynamic Bond Fund, Class II (a)		6,537,172		64,914,119
MML High Yield Fund, Class II (a)		1,405,952		13,581,498
MML Inflation-Protected and Income Fund, Initial Class (a)		2,006,310	$	20,143,348
MML Managed Bond Fund, Initial Class (a)		7,314,709		90,415,818
MML Short-Duration Bond Fund, Class II (a)		2,370,697		23,114,299
MML Total Return Bond Fund, Class II (a)		5,273,702		55,321,137
				267,490,219
TOTAL MUTUAL FUNDS (Cost $537,463,225)				531,670,972
TOTAL LONG-TERM INVESTMENTS (Cost $537,463,225)				531,670,972
TOTAL INVESTMENTS — 100.1% (Cost $537,463,225) (b)				531,670,972
Other Assets/(Liabilities) — (0.1)%				(394,648	)
NET ASSETS — 100.0%			$	531,276,324

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

(a) Affiliated issuer. See Note 4 for a summary of transactions in the investments of affiliated issuers.

(b) See Note 3 for aggregate cost for federal tax purposes.

The accompanying notes are an integral part of the portfolio of investments.

 5

MML Blue Chip Growth Fund – Portfolio of Investments

March 31, 2019 (Unaudited)

	Number of Shares		Value
EQUITIES — 99.5%
COMMON STOCK — 99.5%
Basic Materials — 0.3%
Chemicals — 0.3%
Air Products & Chemicals, Inc.		3,043	$	581,091
The Sherwin-Williams Co.		1,730		745,129
				1,326,220
Communications — 30.5%
Internet — 30.4%
Alibaba Group Holding Ltd. Sponsored ADR (a)		75,863		13,841,205
Alphabet, Inc. Class A (a)		5,189		6,106,882
Alphabet, Inc. Class C (a)		14,707		17,255,870
Amazon.com, Inc. (a)		21,880		38,962,810
Booking Holdings, Inc. (a)		4,542		7,925,381
Ctrip.com International Ltd. ADR (a)		12,740		556,611
Facebook, Inc. Class A (a)		118,700		19,786,103
IAC/InterActiveCorp (a)		8,221		1,727,314
Netflix, Inc. (a)		17,819		6,353,543
Tencent Holdings Ltd.		201,900		9,283,680
				121,799,399
Telecommunications — 0.1%
Corning, Inc.		2,372		78,513
Motorola Solutions, Inc.		1,800		252,756
				331,269
				122,130,668
Consumer, Cyclical — 6.3%
Airlines — 0.5%
American Airlines Group, Inc.		1,067		33,888
Delta Air Lines, Inc.		8,703		449,510
United Continental Holdings, Inc. (a)		18,374		1,465,877
				1,949,275
Apparel — 0.1%
VF Corp.		5,354		465,316
Auto Manufacturers — 0.3%
Ferrari NV		3,395		454,251
Tesla, Inc. (a) (b)		2,225		622,688
				1,076,939
Auto Parts & Equipment — 0.6%
Aptiv PLC		32,767		2,604,649
Leisure Time — 0.7%
Norwegian Cruise Line Holdings Ltd. (a)		12,047		662,103
Royal Caribbean Cruises Ltd.		17,672		2,025,565
				2,687,668
Lodging — 1.1%
Hilton Worldwide Holdings, Inc.		21,389	$	1,777,640
Marriott International, Inc. Class A		17,934		2,243,364
Wynn Resorts Ltd.		3,303		394,114
				4,415,118

 6

	Number of Shares		Value
Retail — 3.0%
Dollar General Corp.		29,419		3,509,687
Domino’s Pizza, Inc.		379		97,820
McDonald’s Corp.		8,582		1,629,722
Restaurant Brands International, Inc.		20,951		1,364,119
Ross Stores, Inc.		34,677		3,228,429
Ulta Salon Cosmetics & Fragrance, Inc. (a)		1,354		472,180
Yum! Brands, Inc.		16,870		1,683,795
				11,985,752
				25,184,717
Consumer, Non-cyclical — 24.5%
Agriculture — 0.2%
Philip Morris International, Inc.		7,100		627,569
Beverages — 0.0%
Constellation Brands, Inc. Class A		300		52,599
Biotechnology — 2.4%
Alexion Pharmaceuticals, Inc. (a)		19,621		2,652,367
Celgene Corp. (a)		285		26,887
Illumina, Inc. (a)		243		75,498
Regeneron Pharmaceuticals, Inc. (a)		1,200		492,744
Vertex Pharmaceuticals, Inc. (a)		35,427		6,516,796
				9,764,292
Commercial Services — 4.9%
Ant International Co., Ltd. Class C (Acquired 6/07/18, Cost $775,038) (c) (d) (e)		138,153		775,038
Automatic Data Processing, Inc.		3,000		479,220
Cintas Corp.		1,804		364,607
CoStar Group, Inc. (a)		681		317,632
FleetCor Technologies, Inc. (a)		4,482		1,105,216
Global Payments, Inc.		38,309		5,229,945
IHS Markit Ltd. (a)		3,048		165,750
Moody’s Corp.		500		90,545
PayPal Holdings, Inc. (a)		69,655		7,232,975
S&P Global, Inc.		6,574		1,384,156
Worldpay, Inc. Class A (a)		22,192		2,518,792
				19,663,876
Health Care – Products — 8.5%
Abbott Laboratories		14,116		1,128,433
Becton Dickinson and Co.		30,612		7,644,735
Boston Scientific Corp. (a)		800		30,704
Danaher Corp.		36,442		4,811,073
Intuitive Surgical, Inc. (a)		12,453		7,105,432

The accompanying notes are an integral part of the portfolio of investments.

 7

	Number of Shares		Value
Stryker Corp.		43,010	$	8,495,335
Thermo Fisher Scientific, Inc.		17,733		4,853,877
				34,069,589
Health Care – Services — 5.9%
Anthem, Inc.		20,916		6,002,474
Centene Corp. (a)		34,586		1,836,517
HCA Healthcare, Inc.		6,460		842,255
Humana, Inc.		8,164		2,171,624
UnitedHealth Group, Inc.		43,001		10,632,427
WellCare Health Plans, Inc. (a)		7,550		2,036,612
				23,521,909
Pharmaceuticals — 2.6%
Cigna Corp. (a)		33,770		5,430,891
Elanco Animal Health, Inc. (a)		14,938		479,062
Eli Lilly & Co.		27,079		3,513,771
Merck & Co., Inc.		794		66,037
Pfizer, Inc.		10,900		462,923
Zoetis, Inc.		3,900		392,613
				10,345,297
				98,045,131
Financial — 11.0%
Banks — 0.5%
Citigroup, Inc.		3,200		199,104
The Goldman Sachs Group, Inc.		100		19,199
Morgan Stanley		39,818		1,680,320
				1,898,623
Diversified Financial Services — 9.1%
Ameriprise Financial, Inc.		400		51,240
The Charles Schwab Corp.		61,003		2,608,488
Intercontinental Exchange, Inc.		34,660		2,639,013
Mastercard, Inc. Class A		49,863		11,740,243
Raymond James Financial, Inc.		4,740		381,143
TD Ameritrade Holding Corp.		104,740		5,235,953
Visa, Inc. Class A		87,898		13,728,789
				36,384,869
Insurance — 1.4%
American International Group, Inc.		9,502		409,156
Chubb Ltd.		3,700		518,296
Marsh & McLennan Cos., Inc.		8,661		813,268
The Progressive Corp.		6,388		460,511
Willis Towers Watson PLC		18,317		3,217,381
				5,418,612
Real Estate Investment Trusts (REITS) — 0.0%
American Tower Corp.		743		146,415
				43,848,519
Industrial — 8.2%
Aerospace & Defense — 4.8%
The Boeing Co.		38,077		14,523,329
Harris Corp.		11,821		1,887,932
Northrop Grumman Corp.		10,832	$	2,920,307
				19,331,568

 8

	Number of Shares		Value
Electronics — 1.2%
Agilent Technologies, Inc.		5,700		458,166
Fortive Corp.		20,744		1,740,214
Honeywell International, Inc.		16,049		2,550,507
				4,748,887
Machinery – Diversified — 1.0%
Roper Technologies, Inc.		10,802		3,693,960
Xylem, Inc.		4,100		324,064
				4,018,024
Packaging & Containers — 0.1%
Ball Corp.		7,601		439,794
Transportation — 1.1%
Canadian Pacific Railway Ltd.		6,669		1,374,014
CSX Corp.		21,873		1,636,538
J.B. Hunt Transport Services, Inc.		456		46,188
Kansas City Southern		1,008		116,908
Norfolk Southern Corp.		1,534		286,690
Union Pacific Corp.		5,306		887,163
				4,347,501
				32,885,774
Technology — 18.4%
Computers — 0.2%
Apple, Inc.		4,099		778,605
Semiconductors — 2.1%
Analog Devices, Inc.		2,500		263,175
Broadcom, Inc.		3,500		1,052,485
KLA-Tencor Corp.		2,000		238,820
Lam Research Corp.		400		71,604
Maxim Integrated Products, Inc.		29,980		1,594,037
Microchip Technology, Inc.		1,968		163,265
NVIDIA Corp.		10,704		1,922,010
Texas Instruments, Inc.		19,299		2,047,045
Xilinx, Inc.		7,536		955,489
				8,307,930
Software — 16.1%
Activision Blizzard, Inc.		668		30,414
Electronic Arts, Inc. (a)		21,000		2,134,230
Fidelity National Information Services, Inc.		23,773		2,688,726
Fiserv, Inc. (a)		45,136		3,984,606
Intuit, Inc.		29,229		7,640,753
Microsoft Corp.		187,341		22,094,998
salesforce.com, Inc. (a)		48,499		7,680,787
ServiceNow, Inc. (a)		30,675		7,561,081
Splunk, Inc. (a)		23,042		2,871,033
VMware, Inc. Class A		17,434		3,147,011
Workday, Inc. Class A (a)		25,232		4,865,991
				64,699,630
				73,786,165

The accompanying notes are an integral part of the portfolio of investments.

 9

	Number of Shares		Value
Utilities — 0.3%
Electric — 0.3%
NextEra Energy, Inc.		200	$	38,664
Sempra Energy		9,474		1,192,398
				1,231,062
TOTAL COMMON STOCK (Cost $237,436,687)				398,438,256
TOTAL EQUITIES (Cost $237,436,687)				398,438,256
MUTUAL FUNDS — 0.2%
Diversified Financial Services — 0.2%
State Street Navigator Securities Lending Prime Portfolio (f)		713,465		713,465
TOTAL MUTUAL FUNDS (Cost $713,465)				713,465
TOTAL LONG-TERM INVESTMENTS (Cost $238,150,152)				399,151,721
SHORT-TERM INVESTMENTS — 0.5%
Mutual Fund — 0.0%
T. Rowe Price Government Reserve Investment Fund		1,053		1,053

	Principal Amount
Repurchase Agreement — 0.5%
Fixed Income Clearing Corp., Repurchase Agreement, dated 3/29/19, 1.250%, due 4/01/19 (g)	$	1,954,014		1,954,014
TOTAL SHORT-TERM INVESTMENTS (Cost $1,955,067)				1,955,067
TOTAL INVESTMENTS — 100.2% (Cost $240,105,219) (h)				401,106,788
Other Assets/(Liabilities) — (0.2)%				(872,916	)
NET ASSETS — 100.0%			$	400,233,872

Abbreviation Legend

ADR American Depositary Receipt

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

(a) Non-income producing security.

(b) Denotes all or a portion of security on loan. The total value of securities on loan as of March 31, 2019, was $699,370 or 0.17% of net assets. Total securities on loan may not correspond with the amounts identified in the Portfolio of Investments because pending sales may be in the process of recall from the brokers. (Note 2).

(c) Investment was valued using significant unobservable inputs.

(d) Restricted security. Certain securities are restricted as to resale. At March 31, 2019, these securities amounted to a value of $775,038 or 0.19% of net assets. The Fund generally bears the costs, if any, associated with the disposition of restricted securities.

(e) This security is fair valued in good faith in accordance with procedures approved by the Board of Trustees. At March 31, 2019, these securities amounted to a value of $775,038 or 0.19% of net assets.

(f) Represents investment of security lending collateral. (Note 2).

(g) Maturity value of $1,954,217. Collateralized by U.S. Government Agency obligations with a rate of 2.375%, maturity date of 3/15/22, and an aggregate market value, including accrued interest, of $1,997,952.

(h) See Note 3 for aggregate cost for federal tax purposes.

The accompanying notes are an integral part of the portfolio of investments.

 10

MML Conservative Allocation Fund – Portfolio of Investments

March 31, 2019 (Unaudited)

	Number of Shares		Value
MUTUAL FUNDS — 100.1%
Equity Funds — 39.8%
MML Blue Chip Growth Fund, Initial Class (a)		612,669	$	10,390,867
MML Equity Income Fund, Initial Class (a)		1,022,732		11,393,233
MML Equity Index Fund, Class III (a)		297,898		9,494,009
MML Focused Equity Fund, Class II (a)		752,051		4,534,870
MML Foreign Fund, Initial Class (a)		755,598		7,533,307
MML Fundamental Growth Fund, Class II (a)		613,519		6,699,625
MML Fundamental Value Fund, Class II (a)		638,650		8,609,005
MML Global Fund, Class I (a)		980,062		11,535,324
MML Income & Growth Fund, Initial Class (a)		1,360,543		12,897,949
MML International Equity Fund, Class II (a)		762,640		7,428,116
MML Large Cap Growth Fund, Initial Class (a)		268,043		3,012,803
MML Mid Cap Growth Fund, Initial Class (a)		460,891		7,461,830
MML Mid Cap Value Fund, Initial Class (a)		813,389		8,613,793
MML Small Cap Growth Equity Fund, Initial Class (a)		117,465		1,807,915
MML Small Company Value Fund, Class II (a)		262,356		4,095,383
MML Small/Mid Cap Value Fund, Initial Class (a)		170,408		2,022,746
MML Strategic Emerging Markets Fund, Class II (a)		49,030		558,941
Oppenheimer Discovery Mid Cap Growth Fund/VA, Non-Service Shares (a)		32,981		2,699,825
Oppenheimer Global Fund/VA, Non-Service Shares (a)		142,260		6,314,935
Oppenheimer Global Multi-Alternatives Fund/VA, Non-Service Shares (a)		2,740,192		26,716,875
Oppenheimer International Growth Fund/VA, Non-Service Shares (a)		2,529,369		5,716,373
Oppenheimer Main Street Fund/VA, Non-Service Shares (a)		155,081		4,762,531
				164,300,255
Fixed Income Funds — 60.3%
MML Dynamic Bond Fund, Class II (a)		6,469,530		64,242,433
MML High Yield Fund, Class II (a)		1,109,338		10,716,208
MML Inflation-Protected and Income Fund, Initial Class (a)		1,766,506	$	17,735,718
MML Managed Bond Fund, Initial Class (a)		6,827,072		84,388,229
MML Short-Duration Bond Fund, Class II (a)		1,971,181		19,219,011
MML Total Return Bond Fund, Class II (a)		5,024,932		52,711,539
				249,013,138
TOTAL MUTUAL FUNDS
(Cost $415,803,077)				413,313,393
TOTAL LONG-TERM INVESTMENTS
(Cost $415,803,077)				413,313,393
TOTAL INVESTMENTS — 100.1%
(Cost $415,803,077) (b)				413,313,393
Other Assets/(Liabilities) — (0.1)%				(319,274	)
NET ASSETS — 100.0%			$	412,994,119

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

(a) Affiliated issuer. See Note 4 for a summary of transactions in the investments of affiliated issuers.

(b) See Note 3 for aggregate cost for federal tax purposes.

The accompanying notes are an integral part of the portfolio of investments.

 11

MML Equity Income Fund – Portfolio of Investments

March 31, 2019 (Unaudited)

	Number of Shares		Value
EQUITIES — 96.9%
COMMON STOCK — 94.4%
Basic Materials — 4.3%
Chemicals — 3.1%
Akzo Nobel NV		7,885	$	699,392
CF Industries Holdings, Inc.		92,000		3,760,960
DowDuPont, Inc.		174,215		9,287,402
PPG Industries, Inc.		5,000		564,350
				14,312,104
Forest Products & Paper — 1.0%
International Paper Co.		94,204		4,358,819
Iron & Steel — 0.2%
Nucor Corp.		17,900		1,044,465
				19,715,388
Communications — 8.1%
Media — 2.9%
Comcast Corp. Class A		133,215		5,325,936
Fox Corp. Class B (a)		85,015		3,050,338
News Corp. Class A		261,286		3,250,398
The Walt Disney Co.		14,384		1,597,055
				13,223,727
Telecommunications — 5.2%
AT&T, Inc.		78,548		2,463,265
CenturyLink, Inc.		51,205		613,948
Cisco Systems, Inc.		157,526		8,504,829
Telefonica SA		296,731		2,487,830
Verizon Communications, Inc.		164,004		9,697,557
				23,767,429
				36,991,156
Consumer, Cyclical — 5.1%
Airlines — 1.3%
Alaska Air Group, Inc.		50,857		2,854,095
Delta Air Lines, Inc.		40,300		2,081,495
Southwest Airlines Co.		25,300		1,313,323
				6,248,913
Auto Manufacturers — 0.3%
PACCAR, Inc.		19,800		1,349,172
Auto Parts & Equipment — 0.1%
Adient PLC		30,181		391,146
Lodging — 1.0%
Las Vegas Sands Corp.		74,300		4,529,328
Retail — 1.9%
Kohl’s Corp.		33,200		2,283,164
L Brands, Inc.		65,100		1,795,458
Walmart, Inc.		46,536		4,538,656
				8,617,278
Toys, Games & Hobbies — 0.5%
Mattel, Inc. (a) (b)		173,700	$	2,258,100
				23,393,937

 12

	Number of Shares		Value
Consumer, Non-cyclical — 20.5%
Agriculture — 1.9%
Archer-Daniels-Midland Co.		15,100		651,263
Bunge Ltd.		26,800		1,422,276
Philip Morris International, Inc.		72,900		6,443,631
				8,517,170
Beverages — 0.5%
PepsiCo, Inc.		17,000		2,083,350
Biotechnology — 1.2%
Gilead Sciences, Inc.		83,940		5,456,939
Commercial Services — 0.9%
Nielsen Holdings PLC		169,929		4,022,219
Cosmetics & Personal Care — 0.2%
Coty, Inc. Class A		66,035		759,403
Foods — 2.8%
Conagra Brands, Inc.		171,339		4,752,944
Kellogg Co.		15,000		860,700
Tyson Foods, Inc. Class A		101,800		7,067,974
				12,681,618
Health Care – Products — 1.8%
Becton Dickinson and Co.		6,513		1,626,491
Medtronic PLC		66,283		6,037,056
Zimmer Biomet Holdings, Inc.		6,500		830,050
				8,493,597
Health Care – Services — 1.7%
Anthem, Inc.		27,158		7,793,803
Household Products & Wares — 1.6%
Kimberly-Clark Corp.		59,887		7,419,999
Pharmaceuticals — 7.9%
Allergan PLC		5,800		849,178
Bristol-Myers Squibb Co.		50,000		2,385,500
CVS Health Corp.		85,841		4,629,405
GlaxoSmithKline PLC Sponsored ADR		26,000		1,086,540
GlaxoSmithKline PLC		151,186		3,136,527
Johnson & Johnson		66,749		9,330,843
Merck & Co., Inc.		68,368		5,686,167
Pfizer, Inc.		218,401		9,275,490
				36,379,650
				93,607,748
Energy — 9.9%
Oil & Gas — 8.1%
Chevron Corp.		35,986		4,432,755
EQT Corp.		11,280		233,947

The accompanying notes are an integral part of the portfolio of investments.

 13

	Number of Shares		Value
Exxon Mobil Corp.		142,375	$	11,503,900
Hess Corp.		69,900		4,210,077
Occidental Petroleum Corp.		73,729		4,880,860
Pioneer Natural Resources Co.		18,100		2,756,268
Total SA		166,800		9,262,862
				37,280,669
Pipelines — 1.8%
Equitrans Midstream Corp. (a)		31,024		675,703
TransCanada Corp.		162,581		7,306,390
				7,982,093
				45,262,762
Financial — 25.5%
Banks — 14.5%
Bank of America Corp.		9,477		261,470
The Bank of New York Mellon Corp.		35,000		1,765,050
Citigroup, Inc.		54,976		3,420,607
Fifth Third Bancorp		224,285		5,656,468
JP Morgan Chase & Co.		138,711		14,041,715
KeyCorp		53,266		838,939
Morgan Stanley		179,200		7,562,240
Northern Trust Corp.		14,700		1,329,027
The PNC Financial Services Group, Inc.		37,200		4,562,952
State Street Corp.		88,600		5,830,766
US Bancorp		125,685		6,056,760
Wells Fargo & Co.		312,400		15,095,168
				66,421,162
Diversified Financial Services — 1.1%
Ameriprise Financial, Inc.		6,273		803,571
Franklin Resources, Inc.		122,900		4,072,906
				4,876,477
Insurance — 6.9%
American International Group, Inc.		142,195		6,122,917
AXA Equitable Holdings, Inc.		16,764		337,627
Brighthouse Financial, Inc. (a)		59,026		2,142,054
Chubb Ltd.		55,519		7,777,101
Loews Corp.		105,380		5,050,863
Marsh & McLennan Cos., Inc.		18,600		1,746,540
MetLife, Inc.		135,770		5,779,729
Willis Towers Watson PLC		15,441		2,712,212
				31,669,043
Real Estate Investment Trusts (REITS) — 3.0%
Equity Residential		59,259		4,463,388
Rayonier, Inc.		87,841		2,768,748
SL Green Realty Corp.		29,221		2,627,552
Weyerhaeuser Co.		154,771		4,076,668
				13,936,356
				116,903,038
Industrial — 9.5%
Aerospace & Defense — 3.6%
The Boeing Co.		23,577	$	8,992,739
Harris Corp.		46,787		7,472,352
Northrop Grumman Corp.		1,051		283,350
				16,748,441
Building Materials — 1.8%
Johnson Controls International PLC		182,802		6,752,706
Vulcan Materials Co.		11,900		1,408,960
				8,161,666

 14

	Number of Shares		Value
Electrical Components & Equipment — 0.6%
Emerson Electric Co.		39,900		2,731,953
Electronics — 0.4%
nVent Electric PLC		34,900		941,602
TE Connectivity Ltd.		8,800		710,600
				1,652,202
Environmental Controls — 0.8%
Pentair PLC		17,700		787,827
Stericycle, Inc. (a)		53,002		2,884,369
				3,672,196
Machinery – Diversified — 0.1%
Flowserve Corp.		4,764		215,047
Wabtec Corp.		1,752		129,157
				344,204
Miscellaneous – Manufacturing — 0.9%
General Electric Co.		351,100		3,507,489
Illinois Tool Works, Inc.		4,794		688,083
				4,195,572
Transportation — 1.3%
United Parcel Service, Inc. Class B		54,221		6,058,654
				43,564,888
Technology — 5.7%
Computers — 0.4%
Hewlett Packard Enterprise Co.		53,700		828,591
Western Digital Corp.		17,800		855,468
				1,684,059
Semiconductors — 3.3%
Applied Materials, Inc.		61,800		2,450,988
NXP Semiconductor NV		10,600		936,934
QUALCOMM, Inc.		144,444		8,237,642
Texas Instruments, Inc.		32,673		3,465,625
				15,091,189
Software — 2.0%
Microsoft Corp.		79,628		9,391,326
				26,166,574

The accompanying notes are an integral part of the portfolio of investments.

 15

	Number of Shares		Value
Utilities — 5.8%
Electric — 4.3%
Duke Energy Corp.		25,200	$	2,268,000
Edison International		50,350		3,117,672
Evergy, Inc.		35,027		2,033,317
PG&E Corp. (a)		20,157		358,795
Sempra Energy		14,840		1,867,762
The Southern Co.		195,027		10,078,995
				19,724,541
Gas — 1.5%
NiSource, Inc. (Acquired 5/04/18, Cost $488,947) (c) (e)		20,142		577,270
NiSource, Inc.		220,529		6,320,361
				6,897,631
				26,622,172
TOTAL COMMON STOCK
(Cost $372,765,624)				432,227,663
PREFERRED STOCK — 2.5%
Consumer, Non-cyclical — 0.8%
Health Care – Products — 0.8%
Becton Dickinson and Co. Convertible 6.125%		63,549		3,927,964
Utilities — 1.7%
Electric — 1.7%
DTE Energy Co. Convertible 6.500%		10,105		559,312
NextEra Energy, Inc. Convertible 6.123%		66,353		4,104,596
Sempra Energy Convertible
6.000%		22,022		2,327,725
Sempra Energy Convertible
6.750%		6,848		726,984
				7,718,617
TOTAL PREFERRED STOCK
(Cost $9,830,774)				11,646,581
TOTAL EQUITIES
(Cost $382,596,398)				443,874,244
BONDS & NOTES — 0.7%
CorpORATE DEBT — 0.7%
Electric — 0.2%
Pacific Gas & Electric Co.
3.950% 12/01/47		805,000		646,012
4.000% 12/01/46		470,000		378,938
				1,024,950
Insurance — 0.2%
AXA SA Convertible
7.250% 5/15/21 (d)		895,000		897,899
Toys, Games & Hobbies — 0.3%
Mattel, Inc.
6.750% 12/31/25 (b) (d)		1,573,000	$	1,547,439
TOTAL CorpORATE DEBT
(Cost $3,423,005)				3,470,288
TOTAL BONDS & NOTES
(Cost $3,423,005)				3,470,288

 16

MUTUAL FUNDS — 0.9%
Diversified Financial Services — 0.9%
State Street Navigator Securities Lending Prime Portfolio (f)	4,044,304	4,044,304
TOTAL MUTUAL FUNDS
(Cost $4,044,304)		4,044,304
TOTAL LONG-TERM INVESTMENTS
(Cost $390,063,707)		451,388,836
SHORT-TERM INVESTMENTS — 2.2%
Mutual Fund — 0.0%
T. Rowe Price Government Reserve Investment Fund	1,051	1,051

	Principal Amount
Repurchase Agreement — 2.2%
Fixed Income Clearing Corp., Repurchase Agreement, dated 3/29/19, 1.250%, due 4/01/19 (g)	$	9,928,233		9,928,233
TOTAL SHORT-TERM INVESTMENTS
(Cost $9,929,284)				9,929,284
TOTAL INVESTMENTS — 100.7%
(Cost $399,992,991) (h)				461,318,120
Other Assets/(Liabilities) — (0.7)%				(3,336,166	)
NET ASSETS — 100.0%			$	457,981,954

Abbreviation Legend

ADR American Depositary Receipt

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

(a) Non-income producing security.

(b) Denotes all or a portion of security on loan. The total value of securities on loan as of March 31, 2019, was $3,910,533 or 0.85% of net assets. Total securities on loan may not correspond with the amounts identified in the Portfolio of Investments because pending sales may be in the process of recall from the brokers. (Note 2).

(c) This security is fair valued in good faith in accordance with procedures approved by the Board of Trustees. At March 31, 2019, these securities amounted to a value of $577,270 or 0.13% of net assets.

(d) Securities exempt from registration under rule 144A of the Securities Act of 1933. These securities may be resold in transactions exempt from registration, normally to qualified institutional buyers. At March 31, 2019, these securities amounted to a value of $2,445,338 or 0.53% of net assets.

(e) Restricted security. Certain securities are restricted as to resale. At March 31, 2019, these securities amounted to a value of $577,270 or 0.13% of net assets. The Fund generally bears the costs, if any, associated with the disposition of restricted securities.

(f) Represents investment of security lending collateral. (Note 2).

(g) Maturity value of $9,929,267. Collateralized by U.S. Government Agency obligations with a rate of 2.375%, maturity date of 3/15/22, and an aggregate market value, including accrued interest, of $10,130,674.

(h) See Note 3 for aggregate cost for federal tax purposes.

The accompanying notes are an integral part of the portfolio of investments.

 17

MML Equity Index Fund – Portfolio of Investments

March 31, 2019 (Unaudited)

	Number of Shares		Value
EQUITIES — 98.6%
COMMON STOCK — 98.6%
Basic Materials — 2.1%
Chemicals — 1.7%
Air Products & Chemicals, Inc.		6,153	$	1,174,977
Albemarle Corp.		2,947		241,595
Celanese Corp.		3,592		354,207
CF Industries Holdings, Inc.		6,244		255,255
DowDuPont, Inc.		63,099		3,363,808
Eastman Chemical Co.		3,899		295,856
FMC Corp.		3,746		287,768
International Flavors & Fragrances, Inc.		2,816		362,673
Linde PLC		15,421		2,713,016
LyondellBasell Industries NV Class A		8,523		716,614
The Mosaic Co.		9,859		269,249
PPG Industries, Inc.		6,608		745,845
The Sherwin-Williams Co.		2,278		981,157
				11,762,020
Forest Products & Paper — 0.1%
International Paper Co.		11,159		516,327
Iron & Steel — 0.1%
Nucor Corp.		8,524		497,375
Mining — 0.2%
Freeport-McMoRan, Inc.		40,681		524,378
Newmont Mining Corp.		14,953		534,869
				1,059,247
				13,834,969
Communications — 14.7%
Advertising — 0.1%
The Interpublic Group of Cos., Inc.		10,694		224,681
Omnicom Group, Inc.		6,232		454,874
				679,555
Internet — 9.2%
Alphabet, Inc. Class A (a)		8,376		9,857,631
Alphabet, Inc. Class C (a)		8,600		10,090,466
Amazon.com, Inc. (a)		11,545		20,558,759
Booking Holdings, Inc. (a)		1,260		2,198,586
eBay, Inc.		24,068		893,885
Expedia Group, Inc.		3,252		386,988
F5 Networks, Inc. (a)		1,654		259,562
Facebook, Inc. Class A (a)		66,746		11,125,891
Netflix, Inc. (a)		12,216		4,355,737
Symantec Corp.		17,986		413,498
TripAdvisor, Inc. (a)		2,848		146,530
Twitter, Inc. (a)		20,381		670,127
VeriSign, Inc. (a)		2,957		536,873
				61,494,533

 18

	Number of Shares		Value
Media — 2.1%
CBS Corp. Class B		9,734	$	462,657
Charter Communications, Inc. Class A (a)		4,856		1,684,595
Comcast Corp. Class A		126,384		5,052,832
Discovery, Inc. Class A (a)		4,359		117,780
Discovery, Inc. Class C (a)		10,146		257,911
DISH Network Corp. Class A (a)		6,457		204,622
Fox Corp. Class A (a)		9,874		362,475
Fox Corp. Class B (a)		4,547		163,147
News Corp. Class A		10,723		133,394
News Corp. Class B		3,597		44,927
Viacom, Inc. Class B		9,831		275,956
The Walt Disney Co.		48,863		5,425,281
				14,185,577
Telecommunications — 3.3%
Arista Networks, Inc. (a)		1,465		460,684
AT&T, Inc.		203,842		6,392,485
CenturyLink, Inc.		26,438		316,992
Cisco Systems, Inc.		123,167		6,649,786
Corning, Inc.		22,009		728,498
Juniper Networks, Inc.		9,762		258,400
Motorola Solutions, Inc.		4,585		643,826
Verizon Communications, Inc.		115,626		6,836,965
				22,287,636
				98,647,301
Consumer, Cyclical — 8.3%
Airlines — 0.4%
Alaska Air Group, Inc.		3,487		195,691
American Airlines Group, Inc.		11,185		355,236
Delta Air Lines, Inc.		17,256		891,272
Southwest Airlines Co.		13,919		722,535
United Continental Holdings, Inc. (a)		6,271		500,300
				2,665,034
Apparel — 0.7%
Capri Holdings Ltd. (a)		4,323		197,777
Hanesbrands, Inc.		10,126		181,053
NIKE, Inc. Class B		35,210		2,965,034
PVH Corp.		2,132		259,997
Ralph Lauren Corp.		1,474		191,148
Under Armour, Inc. Class A (a)		5,218		110,309
Under Armour, Inc. Class C (a)		5,314		100,275
VF Corp.		9,102		791,055
				4,796,648
Auto Manufacturers — 0.4%
Ford Motor Co.		109,286		959,531
General Motors Co.		36,660		1,360,086
PACCAR, Inc.		9,716		662,048
				2,981,665

The accompanying notes are an integral part of the portfolio of investments.

 19

	Number of Shares		Value
Auto Parts & Equipment — 0.1%
Aptiv PLC		7,266	$	577,574
BorgWarner, Inc.		5,861		225,121
				802,695
Distribution & Wholesale — 0.2%
Copart, Inc. (a)		5,617		340,334
Fastenal Co.		7,980		513,194
LKQ Corp. (a)		8,859		251,418
W.W. Grainger, Inc.		1,268		381,579
				1,486,525
Home Builders — 0.2%
D.R. Horton, Inc.		9,523		394,062
Lennar Corp. Class A		8,000		392,720
PulteGroup, Inc.		7,194		201,144
				987,926
Home Furnishing — 0.1%
Leggett & Platt, Inc.		3,628		153,174
Whirlpool Corp.		1,766		234,684
				387,858
Housewares — 0.0%
Newell Brands, Inc.		10,884		166,961
Leisure Time — 0.2%
Carnival Corp.		11,222		569,180
Harley-Davidson, Inc.		4,532		161,611
Norwegian Cruise Line Holdings Ltd. (a)		6,119		336,300
Royal Caribbean Cruises Ltd.		4,808		551,093
				1,618,184
Lodging — 0.4%
Hilton Worldwide Holdings, Inc.		8,185		680,255
Marriott International, Inc. Class A		7,872		984,709
MGM Resorts International		14,273		366,245
Wynn Resorts Ltd.		2,721		324,670
				2,355,879

 20

	Number of Shares		Value
Retail — 5.5%
Advance Auto Parts, Inc.		1,995		340,207
AutoZone, Inc. (a)		701		717,908
Best Buy Co., Inc.		6,582		467,717
CarMax, Inc. (a)		4,758		332,108
Chipotle Mexican Grill, Inc. (a)		680		483,011
Costco Wholesale Corp.		12,324		2,984,133
Darden Restaurants, Inc.		3,450		419,072
Dollar General Corp.		7,352		877,094
Dollar Tree, Inc. (a)		6,666		700,197
Foot Locker, Inc.		3,195		193,617
The Gap, Inc.		5,943		155,588
Genuine Parts Co.		4,081		457,194
The Home Depot, Inc.		31,599		6,063,532
Kohl’s Corp.		4,594		315,929
L Brands, Inc.		6,351		175,161
Lowe’s Cos., Inc.		22,407	$	2,452,894
Macy’s, Inc.		8,668		208,292
McDonald’s Corp.		21,403		4,064,430
Nordstrom, Inc.		3,000		133,140
O’Reilly Automotive, Inc. (a)		2,192		851,154
Ross Stores, Inc.		10,379		966,285
Starbucks Corp.		34,797		2,586,809
Tapestry, Inc.		8,059		261,837
Target Corp.		14,594		1,171,314
Tiffany & Co.		3,017		318,444
The TJX Cos., Inc.		34,607		1,841,439
Tractor Supply Co.		3,394		331,797
Ulta Salon Cosmetics & Fragrance, Inc. (a)		1,582		551,691
Walgreens Boots Alliance, Inc.		22,436		1,419,526
Walmart, Inc.		39,830		3,884,620
Yum! Brands, Inc.		8,577		856,070
				36,582,210
Textiles — 0.0%
Mohawk Industries, Inc. (a)		1,717		216,600
Toys, Games & Hobbies — 0.1%
Hasbro, Inc.		3,234		274,955
Mattel, Inc. (a) (b)		9,600		124,800
				399,755
				55,447,940
Consumer, Non-cyclical — 22.1%
Agriculture — 1.1%
Altria Group, Inc.		52,452		3,012,319
Archer-Daniels-Midland Co.		15,700		677,141
Philip Morris International, Inc.		43,498		3,844,788
				7,534,248
Beverages — 1.8%
Brown-Forman Corp. Class B		4,667		246,324
The Coca-Cola Co.		107,651		5,044,526
Constellation Brands, Inc. Class A		4,659		816,862
Molson Coors Brewing Co. Class B		5,290		315,549
Monster Beverage Corp. (a)		10,936		596,887
PepsiCo, Inc.		39,298		4,815,970
				11,836,118

 21

	Number of Shares		Value
Biotechnology — 2.0%
Alexion Pharmaceuticals, Inc. (a)		6,252		845,145
Amgen, Inc.		17,412		3,307,932
Biogen, Inc. (a)		5,504		1,301,035
Celgene Corp. (a)		19,652		1,853,970
Gilead Sciences, Inc.		35,692		2,320,337
Illumina, Inc. (a)		4,112		1,277,557
Incyte Corp. (a)		4,970		427,470
Regeneron Pharmaceuticals, Inc. (a)		2,193		900,490
Vertex Pharmaceuticals, Inc. (a)		7,152		1,315,610
				13,549,546

The accompanying notes are an integral part of the portfolio of investments.

 22

	Number of Shares		Value
Commercial Services — 2.1%
Automatic Data Processing, Inc.		12,201	$	1,948,988
Cintas Corp.		2,367		478,394
Ecolab, Inc.		7,095		1,252,551
Equifax, Inc.		3,397		402,545
FleetCor Technologies, Inc. (a)		2,401		592,063
Gartner, Inc. (a)		2,527		383,295
Global Payments, Inc.		4,400		600,688
H&R Block, Inc.		5,718		136,889
IHS Markit Ltd. (a)		10,152		552,066
Moody’s Corp.		4,663		844,423
Nielsen Holdings PLC		10,003		236,771
PayPal Holdings, Inc. (a)		32,822		3,408,236
Quanta Services, Inc.		3,944		148,847
Robert Half International, Inc.		3,328		216,852
Rollins, Inc.		4,122		171,558
S&P Global, Inc.		6,950		1,463,322
Total System Services, Inc.		4,544		431,725
United Rentals, Inc. (a)		2,217		253,292
Verisk Analytics, Inc.		4,574		608,342
				14,130,847
Cosmetics & Personal Care — 1.5%
Colgate-Palmolive Co.		24,111		1,652,568
Coty, Inc. Class A		12,533		144,130
The Estee Lauder Cos., Inc. Class A		6,113		1,012,007
The Procter & Gamble Co.		70,009		7,284,436
				10,093,141
Foods — 1.2%
Campbell Soup Co.		5,415		206,474
Conagra Brands, Inc.		13,503		374,573
General Mills, Inc.		16,709		864,691
The Hershey Co.		3,896		447,378
Hormel Foods Corp.		7,573		338,967
The J.M. Smucker Co.		3,163		368,489
Kellogg Co.		7,041		404,013
The Kraft Heinz Co.		17,440		569,416
The Kroger Co.		22,390		550,794
Lamb Weston Holdings, Inc.		4,064		304,556
McCormick & Co., Inc.		3,433		517,113
Mondelez International, Inc. Class A		40,409		2,017,217
Sysco Corp.		13,216		882,300
Tyson Foods, Inc. Class A		8,281		574,950
				8,420,931

23 

	Number of Shares		Value
Health Care – Products — 4.0%
Abbott Laboratories		49,132		3,927,612
ABIOMED, Inc. (a)		1,267		361,843
Align Technology, Inc. (a)		2,044		581,170
Baxter International, Inc.		13,331		1,083,944
Becton Dickinson and Co.		7,525		1,879,218
Boston Scientific Corp. (a)		38,765		1,487,801
The Cooper Cos., Inc.		1,383		409,603
Danaher Corp.		17,575	$	2,320,251
DENTSPLY SIRONA, Inc.		6,274		311,128
Edwards Lifesciences Corp. (a)		5,812		1,112,010
Henry Schein, Inc. (a)		4,210		253,063
Hologic, Inc. (a)		7,490		362,516
IDEXX Laboratories, Inc. (a)		2,398		536,193
Intuitive Surgical, Inc. (a)		3,202		1,826,997
Medtronic PLC		37,521		3,417,413
ResMed, Inc.		4,011		417,024
Stryker Corp.		8,660		1,710,523
Teleflex, Inc.		1,296		391,599
Thermo Fisher Scientific, Inc.		11,261		3,082,361
Varian Medical Systems, Inc. (a)		2,534		359,118
Zimmer Biomet Holdings, Inc.		5,717		730,061
				26,561,448
Health Care – Services — 2.0%
Anthem, Inc.		7,190		2,063,386
Centene Corp. (a)		11,562		613,942
DaVita, Inc. (a)		3,510		190,558
HCA Healthcare, Inc.		7,463		973,026
Humana, Inc.		3,794		1,009,204
IQVIA Holdings, Inc. (a)		4,440		638,694
Laboratory Corp. of America Holdings (a)		2,761		422,378
Quest Diagnostics, Inc.		3,785		340,347
UnitedHealth Group, Inc.		26,849		6,638,684
Universal Health Services, Inc. Class B		2,334		312,219
WellCare Health Plans, Inc. (a)		1,390		374,953
				13,577,391
Household Products & Wares — 0.4%
Avery Dennison Corp.		2,354		266,002
Church & Dwight Co., Inc.		6,845		487,570
The Clorox Co.		3,592		576,372
Kimberly-Clark Corp.		9,627		1,192,785
				2,522,729
Pharmaceuticals — 6.0%
AbbVie, Inc.		41,274		3,326,272
Allergan PLC		8,748		1,280,795
AmerisourceBergen Corp.		4,361		346,787
Bristol-Myers Squibb Co.		45,684		2,179,584
Cardinal Health, Inc.		8,386		403,786
Cigna Corp. (a)		10,636		1,710,481
CVS Health Corp.		36,295		1,957,389
Eli Lilly & Co.		24,165		3,135,650
Johnson & Johnson		74,514		10,416,312
McKesson Corp.		5,368		628,378
Merck & Co., Inc.		72,222		6,006,704
Mylan NV (a)		14,339		406,367
Nektar Therapeutics (a)		4,883		164,069
Perrigo Co. PLC		3,478		167,500

The accompanying notes are an integral part of the portfolio of investments.

24 

	Number of Shares		Value
Pfizer, Inc.		155,342	$	6,597,375
Zoetis, Inc.		13,410		1,349,985
				40,077,434
				148,303,833
Energy — 5.3%
Oil & Gas — 4.4%
Anadarko Petroleum Corp.		14,023		637,766
Apache Corp.		10,558		365,940
Cabot Oil & Gas Corp.		11,797		307,902
Chevron Corp.		53,162		6,548,495
Cimarex Energy Co.		2,838		198,376
Concho Resources, Inc.		5,617		623,262
ConocoPhillips		31,736		2,118,061
Devon Energy Corp.		12,193		384,811
Diamondback Energy, Inc.		4,341		440,742
EOG Resources, Inc.		16,226		1,544,391
Exxon Mobil Corp.		118,548		9,578,678
Helmerich & Payne, Inc.		3,035		168,625
Hess Corp.		7,118		428,717
HollyFrontier Corp.		4,384		216,000
Marathon Oil Corp.		22,823		381,372
Marathon Petroleum Corp.		18,846		1,127,933
Noble Energy, Inc.		13,571		335,611
Occidental Petroleum Corp.		20,993		1,389,737
Phillips 66		11,737		1,117,010
Pioneer Natural Resources Co.		4,704		716,325
Valero Energy Corp.		11,684		991,154
				29,620,908
Oil & Gas Services — 0.5%
Baker Hughes a GE Co.		14,463		400,914
Halliburton Co.		24,368		713,983
National Oilwell Varco, Inc.		10,666		284,142
Schlumberger Ltd.		38,761		1,688,817
TechnipFMC PLC		12,010		282,475
				3,370,331
Pipelines — 0.4%
Kinder Morgan, Inc.		54,462		1,089,785
ONEOK, Inc.		11,515		804,207
The Williams Cos., Inc.		33,879		973,005
				2,866,997
				35,858,236

25 

	Number of Shares		Value
Financial — 17.2%
Banks — 6.1%
Bank of America Corp.		251,337		6,934,388
The Bank of New York Mellon Corp.		24,581		1,239,620
BB&T Corp.		21,421		996,719
Citigroup, Inc.		65,796		4,093,827
Citizens Financial Group, Inc.		12,867		418,178
Comerica, Inc.		4,435		325,174
Fifth Third Bancorp		21,537	$	543,163
First Republic Bank		4,612		463,322
The Goldman Sachs Group, Inc.		9,583		1,839,840
Huntington Bancshares, Inc.		29,154		369,673
JP Morgan Chase & Co.		91,615		9,274,186
KeyCorp		28,244		444,843
M&T Bank Corp.		3,873		608,138
Morgan Stanley		36,348		1,533,886
Northern Trust Corp.		6,101		551,591
The PNC Financial Services Group, Inc.		12,694		1,557,046
Regions Financial Corp.		28,429		402,270
State Street Corp.		10,625		699,231
SunTrust Banks, Inc.		12,407		735,115
SVB Financial Group (a)		1,481		329,315
US Bancorp		42,105		2,029,040
Wells Fargo & Co.		114,569		5,535,974
Zions Bancorp NA		5,224		237,222
				41,161,761
Diversified Financial Services — 4.1%
Affiliated Managers Group, Inc.		1,468		157,237
Alliance Data Systems Corp.		1,274		222,925
American Express Co.		19,351		2,115,064
Ameriprise Financial, Inc.		3,792		485,755
BlackRock, Inc.		3,405		1,455,195
Capital One Financial Corp.		13,093		1,069,567
Cboe Global Markets, Inc.		3,115		297,296
The Charles Schwab Corp.		33,189		1,419,162
CME Group, Inc.		10,011		1,647,610
Discover Financial Services		9,195		654,316
E*TRADE Financial Corp.		6,892		319,996
Franklin Resources, Inc.		8,275		274,233
Intercontinental Exchange, Inc.		15,908		1,211,235
Invesco Ltd.		11,107		214,476
Jefferies Financial Group, Inc.		7,400		139,046
Mastercard, Inc. Class A		25,259		5,947,232
Nasdaq, Inc.		3,251		284,430
Raymond James Financial, Inc.		3,526		283,526
Synchrony Financial		18,230		581,537
T. Rowe Price Group, Inc.		6,609		661,693
Visa, Inc. Class A		48,962		7,647,375
The Western Union Co.		12,251		226,276
				27,315,182
Insurance — 3.9%
Aflac, Inc.		21,002		1,050,100
The Allstate Corp.		9,292		875,121
American International Group, Inc.		24,329		1,047,607
Aon PLC		6,725		1,147,957
Arthur J Gallagher & Co.		5,170		403,777
Assurant, Inc.		1,729		164,099
Berkshire Hathaway, Inc. Class B (a)		54,407		10,929,822
Brighthouse Financial, Inc. (a)		3,297		119,648

The accompanying notes are an integral part of the portfolio of investments.    

26 

	Number of Shares		Value
Chubb Ltd.		12,811	$	1,794,565
Cincinnati Financial Corp.		4,208		361,467
Everest Re Group Ltd.		1,145		247,274
The Hartford Financial Services Group, Inc.		10,080		501,178
Lincoln National Corp.		5,718		335,647
Loews Corp.		7,691		368,630
Marsh & McLennan Cos., Inc.		14,132		1,326,995
MetLife, Inc.		26,788		1,140,365
Principal Financial Group, Inc.		7,221		362,422
The Progressive Corp.		16,339		1,177,879
Prudential Financial, Inc.		11,431		1,050,280
Torchmark Corp.		2,829		231,837
The Travelers Cos., Inc.		7,365		1,010,183
Unum Group		5,951		201,322
Willis Towers Watson PLC		3,613		634,623
				26,482,798
Real Estate — 0.1%
CBRE Group, Inc. Class A (a)		8,720		431,204
Real Estate Investment Trusts (REITS) — 3.0%
Alexandria Real Estate Equities, Inc.		3,155		449,777
American Tower Corp.		12,343		2,432,312
Apartment Investment & Management Co. Class A		4,386		220,572
AvalonBay Communities, Inc.		3,878		778,431
Boston Properties, Inc.		4,329		579,566
Crown Castle International Corp.		11,628		1,488,384
Digital Realty Trust, Inc.		5,816		692,104
Duke Realty Corp.		10,136		309,959
Equinix, Inc.		2,331		1,056,316
Equity Residential		10,356		780,014
Essex Property Trust, Inc.		1,836		531,045
Extra Space Storage, Inc.		3,567		363,513
Federal Realty Investment Trust		2,091		288,244
HCP, Inc.		13,431		420,390
Host Hotels & Resorts, Inc.		20,633		389,964
Iron Mountain, Inc.		7,959		282,226
Kimco Realty Corp.		11,720		216,820
The Macerich Co.		2,945		127,666
Mid-America Apartment Communities, Inc.		3,166		346,139
Prologis, Inc.		17,636		1,268,910
Public Storage		4,200		914,676
Realty Income Corp.		8,508		625,848
Regency Centers Corp.		4,712		318,013
SBA Communications Corp. (a)		3,150		628,929
Simon Property Group, Inc.		8,646		1,575,388
SL Green Realty Corp.		2,320		208,614
UDR, Inc.		7,661		348,269
Ventas, Inc.		9,986		637,207
Vornado Realty Trust		4,884		329,377
Welltower, Inc.		10,816	$	839,322
Weyerhaeuser Co.		20,831		548,688
				19,996,683
Savings & Loans — 0.0%
People’s United Financial, Inc.		11,001		180,856
				115,568,484

27 

	Number of Shares		Value
Industrial — 9.2%
Aerospace & Defense — 2.5%
Arconic, Inc.		12,068		230,620
The Boeing Co.		14,701		5,607,255
General Dynamics Corp.		7,579		1,282,973
Harris Corp.		3,301		527,203
L3 Technologies, Inc.		2,219		457,935
Lockheed Martin Corp.		6,878		2,064,501
Northrop Grumman Corp.		4,749		1,280,330
Raytheon Co.		7,910		1,440,253
TransDigm Group, Inc. (a)		1,361		617,880
United Technologies Corp.		22,680		2,923,225
				16,432,175
Building Materials — 0.3%
Fortune Brands Home & Security, Inc.		3,937		187,441
Johnson Controls International PLC		25,529		943,041
Martin Marietta Materials, Inc.		1,744		350,858
Masco Corp.		8,238		323,836
Vulcan Materials Co.		3,671		434,646
				2,239,822
Electrical Components & Equipment — 0.3%
AMETEK, Inc.		6,353		527,109
Emerson Electric Co.		17,198		1,177,547
				1,704,656
Electronics — 1.3%
Agilent Technologies, Inc.		8,862		712,328
Allegion PLC		2,642		239,656
Amphenol Corp. Class A		8,325		786,213
FLIR Systems, Inc.		3,751		178,473
Fortive Corp.		8,238		691,086
Garmin Ltd.		3,418		295,144
Honeywell International, Inc.		20,395		3,241,173
Keysight Technologies, Inc. (a)		5,270		459,544
Mettler-Toledo International, Inc. (a)		696		503,208
PerkinElmer, Inc.		3,094		298,138
TE Connectivity Ltd.		9,478		765,348
Waters Corp. (a)		2,000		503,420
				8,673,731
Engineering & Construction — 0.1%
Fluor Corp.		3,899		143,483
Jacobs Engineering Group, Inc.		3,295		247,751
				391,234

The accompanying notes are an integral part of the portfolio of investments.  

28 

	Number of Shares		Value
Environmental Controls — 0.3%
Pentair PLC		4,447	$	197,936
Republic Services, Inc.		6,043		485,736
Waste Management, Inc.		10,902		1,132,827
				1,816,499
Hand & Machine Tools — 0.1%
Snap-on, Inc.		1,571		245,893
Stanley Black & Decker, Inc.		4,238		577,088
				822,981
Machinery – Construction & Mining — 0.3%
Caterpillar, Inc.		16,103		2,181,796
Machinery – Diversified — 0.7%
Cummins, Inc.		4,050		639,374
Deere & Co.		8,912		1,424,494
Dover Corp.		4,069		381,672
Flowserve Corp.		3,650		164,761
Rockwell Automation, Inc.		3,355		588,668
Roper Technologies, Inc.		2,897		990,687
Wabtec Corp.		3,907		288,024
Xylem, Inc.		4,998		395,042
				4,872,722
Miscellaneous – Manufacturing — 1.5%
3M Co.		16,108		3,346,920
A.O. Smith Corp.		4,006		213,600
Eaton Corp. PLC		11,853		954,878
General Electric Co.		243,567		2,433,234
Illinois Tool Works, Inc.		8,446		1,212,255
Ingersoll-Rand PLC		6,776		731,469
Parker-Hannifin Corp.		3,618		620,921
Textron, Inc.		6,562		332,431
				9,845,708
Packaging & Containers — 0.2%
Ball Corp.		9,345		540,702
Packaging Corp. of America		2,631		261,469
Sealed Air Corp.		4,368		201,190
WestRock Co.		7,166		274,816
				1,278,177
Shipbuilding — 0.0%
Huntington Ingalls Industries, Inc.		1,162		240,766
Transportation — 1.6%
C.H. Robinson Worldwide, Inc.		3,824		332,650
CSX Corp.		21,683		1,622,322
Expeditors International of Washington, Inc.		4,799		364,244
FedEx Corp.		6,713		1,217,805
J.B. Hunt Transport Services, Inc.		2,417		244,818
Kansas City Southern		2,831		328,339
Norfolk Southern Corp.		7,485		1,398,872
Union Pacific Corp.		20,228		3,382,122
United Parcel Service, Inc. Class B		19,475	$	2,176,136
				11,067,308
				61,567,575

29 

	Number of Shares		Value
Technology — 16.4%
Computers — 5.3%
Accenture PLC Class A		17,829		3,138,261
Apple, Inc.		125,350		23,810,232
Cognizant Technology Solutions Corp. Class A		16,098		1,166,300
DXC Technology Co.		7,500		482,325
Fortinet, Inc. (a)		4,087		343,185
Hewlett Packard Enterprise Co.		38,512		594,240
HP, Inc.		42,891		833,372
International Business Machines Corp.		24,897		3,512,967
NetApp, Inc.		6,906		478,862
Seagate Technology PLC		7,138		341,839
Western Digital Corp.		8,150		391,689
				35,093,272
Office & Business Equipment — 0.0%
Xerox Corp.		5,591		178,800
Semiconductors — 3.9%
Advanced Micro Devices, Inc. (a)		24,705		630,472
Analog Devices, Inc.		10,292		1,083,439
Applied Materials, Inc.		26,561		1,053,409
Broadcom, Inc.		11,083		3,332,769
Intel Corp.		125,824		6,756,749
IPG Photonics Corp. (a)		996		151,173
KLA-Tencor Corp.		4,637		553,704
Lam Research Corp.		4,269		764,194
Maxim Integrated Products, Inc.		7,612		404,730
Microchip Technology, Inc.		6,634		550,357
Micron Technology, Inc. (a)		31,364		1,296,274
NVIDIA Corp.		16,958		3,044,978
Qorvo, Inc. (a)		3,444		247,038
QUALCOMM, Inc.		33,866		1,931,378
Skyworks Solutions, Inc.		4,869		401,595
Texas Instruments, Inc.		26,256		2,784,974
Xilinx, Inc.		7,083		898,053
				25,885,286
Software — 7.2%
Activision Blizzard, Inc.		21,370		972,976
Adobe, Inc. (a)		13,643		3,635,723
Akamai Technologies, Inc. (a)		4,599		329,794
ANSYS, Inc. (a)		2,352		429,734
Autodesk, Inc. (a)		6,123		954,086
Broadridge Financial Solutions, Inc.		3,247		336,681
Cadence Design Systems, Inc. (a)		7,843		498,109
Cerner Corp. (a)		9,072		519,009
Citrix Systems, Inc.		3,498		348,611
Electronic Arts, Inc. (a)		8,400		853,692

The accompanying notes are an integral part of the portfolio of investments.

30 

	Number of Shares		Value
Fidelity National Information Services, Inc.		9,027	$	1,020,954
Fiserv, Inc. (a)		10,952		966,843
Intuit, Inc.		7,245		1,893,915
Jack Henry & Associates, Inc.		2,143		297,320
Microsoft Corp.		214,662		25,317,236
MSCI, Inc.		2,358		468,865
Oracle Corp.		71,290		3,828,986
Paychex, Inc.		8,946		717,469
Red Hat, Inc. (a)		4,944		903,269
salesforce.com, Inc. (a)		21,398		3,388,801
Synopsys, Inc. (a)		4,197		483,285
Take-Two Interactive Software, Inc. (a)		3,151		297,360
				48,462,718
				109,620,076
Utilities — 3.3%
Electric — 3.1%
AES Corp.		18,413		332,907
Alliant Energy Corp.		6,573		309,785
Ameren Corp.		6,858		504,406
American Electric Power Co., Inc.		13,801		1,155,834
CenterPoint Energy, Inc.		14,098		432,809
CMS Energy Corp.		7,966		442,432
Consolidated Edison, Inc.		8,978		761,424
Dominion Energy, Inc.		22,362		1,714,271
DTE Energy Co.		5,097		635,800
Duke Energy Corp.		20,343		1,830,870
Edison International		9,136		565,701
Entergy Corp.		5,305		507,317
Evergy, Inc.		7,124		413,548
Eversource Energy		8,879		629,965
Exelon Corp.		27,126		1,359,826
FirstEnergy Corp.		14,094		586,451
NextEra Energy, Inc.		13,378		2,586,235
NRG Energy, Inc.		7,875		334,530
Pinnacle West Capital Corp.		3,121		298,305
PPL Corp.		20,178		640,450
Public Service Enterprise Group, Inc.		14,136		839,820
Sempra Energy		7,663		964,465
The Southern Co.		28,946		1,495,929
WEC Energy Group, Inc.		8,833		698,514
Xcel Energy, Inc.		14,389		808,806
				20,850,400
Gas — 0.1%
Atmos Energy Corp.		3,251		334,626
NiSource, Inc.		10,417		298,551
				633,177
Water — 0.1%
American Water Works Co., Inc.		5,065	$	528,077
				22,011,654
TOTAL COMMON STOCK
(Cost $396,051,437)				660,860,068
TOTAL EQUITIES
(Cost $396,051,437)				660,860,068

31 

	Number of Shares		Value
MUTUAL FUNDS — 0.0%
Diversified Financial Services — 0.0%
State Street Navigator Securities Lending Prime Portfolio (c)		128,304		128,304
TOTAL MUTUAL FUNDS
(Cost $128,304)				128,304
TOTAL LONG-TERM INVESTMENTS
(Cost $396,179,741)				660,988,372

	Principal Amount
SHORT-TERM INVESTMENTS — 1.2%
Repurchase Agreement — 1.0%
Fixed Income Clearing Corp., Repurchase Agreement, dated 3/29/19, 1.250%, due 4/01/19 (d)	$	6,401,215		6,401,215
U.S. Treasury Bill — 0.2%
U.S. Treasury Bill
2.485%7/18/19 (e)		1,085,000		1,077,314
TOTAL SHORT-TERM INVESTMENTS
(Cost $7,478,192)				7,478,529
TOTAL INVESTMENTS — 99.8%
(Cost $403,657,933) (f)				668,466,901
Other Assets/(Liabilities) — 0.2%				1,504,189
NET ASSETS — 100.0%			$	669,971,090

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

(a) Non-income producing security.

(b) Denotes all or a portion of security on loan. The total value of securities on loan as of March 31, 2019, was $123,552 or 0.02% of net assets. Total securities on loan may not correspond with the amounts identified in the Portfolio of Investments because pending sales may be in the process of recall from the brokers. (Note 2).

(c) Represents investment of security lending collateral. (Note 2).

(d) Maturity value of $6,401,882. Collateralized by U.S. Government Agency obligations with a rate of 2.375%, maturity date of 3/15/22, and an aggregate market value, including accrued interest, of $6,532,347.

(e) A portion of this security is pledged/held as collateral for open futures contracts. (Note 2).

(f) See Note 3 for aggregate cost for federal tax purposes.

Futures contracts at March 31, 2019:

	Expiration Date		Number of Contracts		Notional Amount		Value/Net Unrealized Appreciation/ (Depreciation)
Long
S&P 500 E-Mini Index		6/21/19		57	$	7,901,436	$	186,294

The accompanying notes are an integral part of the portfolio of investments.

32 

MML Focused Equity Fund – Portfolio of Investments

March 31, 2019 (Unaudited)

	Number of Shares		Value
EQUITIES — 97.9%
COMMON STOCK — 97.9%
Basic Materials — 3.0%
Chemicals — 3.0%
Linde PLC		12,653	$	2,226,042
Consumer, Cyclical — 14.7%
Apparel — 3.8%
NIKE, Inc. Class B		33,496		2,820,698
Retail — 10.9%
Costco Wholesale Corp.		7,057		1,708,782
McDonald’s Corp.		19,849		3,769,325
The TJX Cos., Inc.		48,374		2,573,981
				8,052,088
				10,872,786
Consumer, Non-cyclical — 33.9%
Beverages — 13.8%
The Coca-Cola Co.		74,181		3,476,121
Diageo PLC		80,405		3,288,720
PepsiCo, Inc.		27,794		3,406,155
				10,170,996
Cosmetics & Personal Care — 4.0%
Colgate-Palmolive Co.		43,643		2,991,291
Health Care – Products — 11.6%
Baxter International, Inc.		28,756		2,338,150
Danaher Corp.		21,322		2,814,931
Medtronic PLC		37,386		3,405,117
				8,558,198
Health Care – Services — 2.0%
UnitedHealth Group, Inc.		5,954		1,472,186
Pharmaceuticals — 2.5%
Johnson & Johnson		12,954		1,810,840
				25,003,511
Financial — 25.4%
Banks — 3.5%
The PNC Financial Services Group, Inc.		20,863		2,559,055
Diversified Financial Services — 6.2%
American Express Co.		22,908		2,503,844
Visa, Inc. Class A		13,132		2,051,087
				4,554,931
Insurance — 7.1%
Chubb Ltd.		22,902		3,208,112
Marsh & McLennan Cos., Inc.		21,804		2,047,396
				5,255,508
Real Estate Investment Trusts (REITS) — 8.6%
American Tower Corp.		18,505		3,646,595
Public Storage		12,371	$	2,694,157
				6,340,752
				18,710,246

33 

	Number of Shares		Value
Industrial — 14.0%
Aerospace & Defense — 4.6%
General Dynamics Corp.		10,633		1,799,954
Lockheed Martin Corp.		5,352		1,606,457
				3,406,411
Miscellaneous – Manufacturing — 2.5%
3M Co.		8,695		1,806,647
Transportation — 6.9%
Canadian National Railway Co.		28,713		2,570,387
Union Pacific Corp.		15,107		2,525,890
				5,096,277
				10,309,335
Technology — 6.9%
Computers — 2.9%
Accenture PLC Class A		12,051		2,121,217
Software — 4.0%
Microsoft Corp.		25,468		3,003,696
				5,124,913
TOTAL COMMON STOCK
(Cost $63,952,342)				72,246,833
TOTAL EQUITIES
(Cost $63,952,342)				72,246,833
TOTAL LONG-TERM INVESTMENTS
(Cost $63,952,342)				72,246,833

	Principal Amount
SHORT-TERM INVESTMENTS — 2.1%
Repurchase Agreement — 2.1%
Fixed Income Clearing Corp., Repurchase Agreement, dated 3/29/19, 1.250%, due 4/01/19 (a)	$	1,569,435		1,569,435
TOTAL SHORT-TERM INVESTMENTS
(Cost $1,569,435)				1,569,435
TOTAL INVESTMENTS — 100.0%
(Cost $65,521,777) (b)				73,816,268
Other Assets/(Liabilities) — (0.0)%				(25,870	)
NET ASSETS — 100.0%			$	73,790,398

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

(a) Maturity value of $1,569,598. Collateralized by U.S. Government Agency obligations with a rate of 0.125%, maturity date of 4/15/22, and an aggregate market value, including accrued interest, of $1,602,519.

(b) See Note 3 for aggregate cost for federal tax purposes.

The accompanying notes are an integral part of the portfolio of investments.

34 

MML Foreign Fund – Portfolio of Investments

March 31, 2019 (Unaudited)

	Number of Shares		Value
EQUITIES — 97.4%
COMMON STOCK — 97.4%
Canada — 2.1%
Husky Energy, Inc.		207,400	$	2,056,385
Wheaton Precious Metals Corp.		191,000		4,546,496
				6,602,881
Cayman Islands — 4.3%
Baidu, Inc. Sponsored ADR (a)		28,170		4,643,824
CK Asset Holdings Ltd.		452,254		4,020,819
CK Hutchison Holdings Ltd.		487,254		5,117,260
				13,781,903
China — 2.7%
China Telecom Corp. Ltd. Class H		11,037,643		6,130,102
Sinopharm Group Co. Ltd. Class H		568,800		2,369,205
				8,499,307
Denmark — 1.8%
Vestas Wind Systems A/S		66,972		5,640,756
France — 13.1%
AXA SA		201,733		5,083,394
BNP Paribas SA		159,310		7,635,330
Cie de Saint-Gobain		84,080		3,050,065
Cie Generale des Etablissements Michelin SCA		27,433		3,251,840
Credit Agricole SA		112,057		1,357,635
Sanofi		82,015		7,252,511
Total SA (b)		132,937		7,382,356
Veolia Environnement SA		303,958		6,798,592
				41,811,723
Germany — 11.5%
Bayer AG Registered		64,174		4,147,466
Deutsche Telekom AG Registered		362,885		6,023,137
E.ON SE		593,066		6,595,521
Infineon Technologies AG		241,765		4,796,401
LANXESS AG		47,230		2,519,027
Merck KGaA		50,900		5,803,710
Siemens AG Registered		42,985		4,626,017
Telefonica Deutschland Holding AG		610,675		1,917,620
				36,428,899
Hong Kong — 2.6%
AIA Group Ltd.		326,400		3,248,987
China Mobile Ltd.		480,000		4,908,363
				8,157,350
Ireland — 3.3%
Bank of Ireland Group PLC		572,268		3,410,166
CRH PLC		224,445		6,960,932
				10,371,098
Israel — 1.6%
Teva Pharmaceutical Industries Ltd. Sponsored ADR (a)		334,268	$	5,241,322
Italy — 3.1%
Eni SpA		438,653		7,749,062
UniCredit SpA		160,689		2,061,601
				9,810,663

35 

	Number of Shares		Value
Japan — 12.4%
Astellas Pharma, Inc.		356,700		5,351,687
IHI Corp.		45,800		1,104,043
Kirin Holdings Co. Ltd.		96,100		2,300,653
Mitsui Fudosan Co. Ltd.		173,300		4,366,371
Panasonic Corp.		345,400		2,988,794
Ryohin Keikaku Co. Ltd.		7,400		1,881,503
Seven & i Holdings Co. Ltd.		92,500		3,490,531
Sumitomo Metal Mining Co. Ltd.		44,200		1,315,797
Sumitomo Mitsui Financial Group, Inc.		175,900		6,155,326
Sumitomo Rubber Industries Ltd.		121,700		1,463,666
Suntory Beverage & Food Ltd.		74,100		3,481,036
Takeda Pharmaceutical Co. Ltd.		136,433		5,583,752
				39,483,159
Luxembourg — 1.8%
SES SA		246,017		3,829,744
Tenaris SA		127,371		1,795,752
				5,625,496
Netherlands — 5.1%
Akzo Nobel NV		28,606		2,537,322
ING Groep NV		534,379		6,477,390
NXP Semiconductor NV		47,900		4,233,881
SBM Offshore NV		159,233		3,027,294
				16,275,887
Norway — 1.0%
Yara International ASA		77,872		3,188,453
Republic of Korea — 4.6%
Hana Financial Group, Inc.		79,353		2,544,421
KB Financial Group, Inc. ADR (a)		88,116		3,265,579
Samsung Electronics Co. Ltd.		222,347		8,743,700
				14,553,700
Singapore — 1.5%
Singapore Telecommunications Ltd.		2,216,600		4,945,729
Switzerland — 6.6%
Landis+Gyr Group AG		25,523		1,616,984
Novartis AG Registered		59,896		5,764,614
Roche Holding AG		27,562		7,597,729
UBS Group AG Registered		484,462		5,881,164
				20,860,491

The accompanying notes are an integral part of the portfolio of investments.  

36 

	Number of Shares		Value
Taiwan — 1.6%
Taiwan Semiconductor Manufacturing Co. Ltd.		641,275	$	5,130,159
Thailand — 1.3%
Bangkok Bank PCL Foreign Registered		588,900		4,014,465
United Kingdom — 15.4%
BAE Systems PLC		359,230		2,263,104
BP PLC		1,367,221		9,980,660
Cobham PLC (a)		190,441		274,124
HSBC Holdings PLC		623,600		5,078,987
Johnson Matthey PLC		96,470		3,951,613
Kingfisher PLC		1,267,063		3,878,209
Royal Dutch Shell PLC Class A		2,397		75,319
Royal Dutch Shell PLC Class B		270,523		8,551,097
Standard Chartered PLC		1,019,428		7,880,582
Travis Perkins PLC		149,165		2,672,143
Vodafone Group PLC Sponsored ADR		236,983		4,308,351
				48,914,189
TOTAL COMMON STOCK
(Cost $302,091,265)				309,337,630
TOTAL EQUITIES
(Cost $302,091,265)				309,337,630
MUTUAL FUNDS — 0.0%
United States — 0.0%
State Street Navigator Securities Lending Prime Portfolio (c)		104,222		104,222
TOTAL MUTUAL FUNDS
(Cost $104,222)				104,222
TOTAL LONG-TERM INVESTMENTS
(Cost $302,195,487)				309,441,852

	Principal Amount
SHORT-TERM INVESTMENTS — 1.7%
Repurchase Agreement — 1.7%
Fixed Income Clearing Corp., Repurchase Agreement, dated 3/29/19, 1.250%, due 4/01/19 (d)	$	5,419,457		5,419,457
TOTAL SHORT-TERM INVESTMENTS
(Cost $5,419,457)				5,419,457
TOTAL INVESTMENTS — 99.1%
(Cost $307,614,944) (e)			$	314,861,309
Other Assets/(Liabilities) — 0.9%				2,926,836
NET ASSETS — 100.0%			$	317,788,145

Abbreviation Legend

ADR American Depositary Receipt

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

(a) Non-income producing security.

(b) Denotes all or a portion of security on loan. The total value of securities on loan as of March 31, 2019, was $93,513 or 0.03% of net assets. Total securities on loan may not correspond with the amounts identified in the Portfolio of Investments because pending sales may be in the process of recall from the brokers. (Note 2).

(c) Represents investment of security lending collateral. (Note 2).

(d) Maturity value of $5,420,022. Collateralized by U.S. Government Agency obligations with a rate of 2.375%, maturity date of 3/15/22, and an aggregate market value, including accrued interest, of $5,530,855.

(e) See Note 3 for aggregate cost for federal tax purposes.

The accompanying notes are an integral part of the portfolio of investments.

37 

MML Fundamental Growth Fund – Portfolio of Investments

March 31, 2019 (Unaudited)

	Number of Shares		Value
EQUITIES — 98.7%
COMMON STOCK — 98.7%
Basic Materials — 0.5%
Chemicals — 0.5%
The Sherwin-Williams Co.		1,197	$	515,560
Communications — 19.4%
Internet — 17.6%
Alibaba Group Holding Ltd. Sponsored ADR (a)		5,252		958,227
Alphabet, Inc. Class C (a)		5,611		6,583,443
Amazon.com, Inc. (a)		3,427		6,102,630
Booking Holdings, Inc. (a)		109		190,195
Facebook, Inc. Class A (a)		18,005		3,001,254
Palo Alto Networks, Inc. (a)		3,379		820,692
VeriSign, Inc. (a)		8,281		1,503,498
				19,159,939
Media — 0.6%
FactSet Research Systems, Inc.		2,738		679,763
Telecommunications — 1.2%
Cisco Systems, Inc.		18,538		1,000,867
Verizon Communications, Inc.		6,004		355,016
				1,355,883
				21,195,585
Consumer, Cyclical — 9.8%
Apparel — 2.0%
NIKE, Inc. Class B		25,271		2,128,071
Retail — 7.8%
AutoZone, Inc. (a)		1,865		1,909,984
The Home Depot, Inc.		5,585		1,071,705
Lowe’s Cos., Inc.		14,970		1,638,766
McDonald’s Corp.		7,300		1,386,270
O’Reilly Automotive, Inc. (a)		3,043		1,181,597
Ross Stores, Inc.		7,403		689,219
The TJX Cos., Inc.		12,523		666,349
				8,543,890
				10,671,961
Consumer, Non-cyclical — 21.9%
Beverages — 1.1%
Monster Beverage Corp. (a)		21,692		1,183,949
Commercial Services — 10.8%
Experian PLC		43,377		1,175,325
FleetCor Technologies, Inc. (a)		7,079		1,745,611
Gartner, Inc. (a)		5,432		823,926
Global Payments, Inc.		13,683		1,868,003
IHS Markit Ltd. (a)		21,246		1,155,357
PayPal Holdings, Inc. (a)		24,352		2,528,712
S&P Global, Inc.		6,833		1,438,688
Worldpay, Inc. Class A (a)		9,635		1,093,573
				11,829,195

38 

	Number of Shares		Value
Cosmetics & Personal Care — 1.1%
The Procter & Gamble Co.		11,305	$	1,176,285
Health Care – Products — 6.3%
Baxter International, Inc.		13,381		1,088,009
Danaher Corp.		9,731		1,284,687
Edwards Lifesciences Corp. (a)		6,498		1,243,262
Intuitive Surgical, Inc. (a)		2,610		1,489,214
Teleflex, Inc.		1,186		358,362
Thermo Fisher Scientific, Inc.		5,038		1,379,001
				6,842,535
Health Care – Services — 2.3%
Anthem, Inc.		5,371		1,541,370
ICON PLC (a)		7,097		969,308
				2,510,678
Pharmaceuticals — 0.3%
Elanco Animal Health, Inc. (a)		11,856		380,222
				23,922,864
Financial — 11.5%
Diversified Financial Services — 9.0%
American Express Co.		14,929		1,631,740
Intercontinental Exchange, Inc.		13,360		1,017,230
Mastercard, Inc. Class A		12,393		2,917,932
TD Ameritrade Holding Corp.		19,925		996,051
Visa, Inc. Class A		21,037		3,285,769
				9,848,722
Real Estate Investment Trusts (REITS) — 2.5%
American Tower Corp.		13,811		2,721,595
				12,570,317
Industrial — 8.7%
Aerospace & Defense — 1.4%
Aerojet Rocketdyne Holdings, Inc. (a)		9,423		334,799
The Boeing Co.		3,040		1,159,517
				1,494,316
Electronics — 2.7%
Agilent Technologies, Inc.		13,578		1,091,400
Fortive Corp.		6,351		532,785
Waters Corp. (a)		5,353		1,347,404
				2,971,589
Machinery – Diversified — 1.8%
Roper Technologies, Inc.		5,661		1,935,892
Transportation — 2.8%
Expeditors International of Washington, Inc.		7,568		574,411
Norfolk Southern Corp.		5,902		1,103,025
Union Pacific Corp.		8,114		1,356,661
				3,034,097
				9,435,894

The accompanying notes are an integral part of the portfolio of investments.

39 

	Number of Shares		Value
Technology — 26.9%
Computers — 7.3%
Apple, Inc.		22,773	$	4,325,731
Check Point Software Technologies Ltd. (a)		14,488		1,832,587
Fortinet, Inc. (a)		17,587		1,476,780
NetApp, Inc.		5,569		386,155
				8,021,253
Semiconductors — 2.0%
Broadcom, Inc.		4,018		1,208,253
Microchip Technology, Inc.		11,389		944,831
				2,153,084
Software — 17.6%
Adobe, Inc. (a)		7,258		1,934,185
Electronic Arts, Inc. (a)		6,703		681,226
Guidewire Software, Inc. (a)		10,150		986,174
Intuit, Inc.		6,164		1,611,331
Microsoft Corp.		68,974		8,134,794
salesforce.com, Inc. (a)		12,417		1,966,480
ServiceNow, Inc. (a)		4,786		1,179,701
SS&C Technologies Holdings, Inc		24,444		1,556,838
VMware, Inc. Class A		6,284		1,134,325
				19,185,054
				29,359,391
TOTAL COMMON STOCK
(Cost $85,250,540)				107,671,572
TOTAL EQUITIES
(Cost $85,250,540)				107,671,572
TOTAL LONG-TERM INVESTMENTS
(Cost $85,250,540)				107,671,572

	Principal Amount
SHORT-TERM INVESTMENTS — 0.9%
Repurchase Agreement — 0.9%
Fixed Income Clearing Corp., Repurchase Agreement, dated 3/29/19, 1.250%, due 4/01/19 (b)	$	1,031,702		1,031,702
TOTAL SHORT-TERM INVESTMENTS
(Cost $1,031,702)				1,031,702
TOTAL INVESTMENTS — 99.6%
(Cost $86,282,242) (c)				108,703,274
Other Assets/(Liabilities) — 0.4%				424,427
NET ASSETS — 100.0%			$	109,127,701

Abbreviation Legend

ADR American Depositary Receipt

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

(a) Non-income producing security.

(b) Maturity value of $1,031,810. Collateralized by U.S. Government Agency obligations with a rate of 0.125%, maturity date of 4/15/22, and an aggregate market value, including accrued interest, of $1,054,693.

(c) See Note 3 for aggregate cost for federal tax purposes.

The accompanying notes are an integral part of the portfolio of investments.

40 

MML Fundamental Value Fund – Portfolio of Investments

March 31, 2019 (Unaudited)

	Number of Shares		Value
EQUITIES — 99.0%
COMMON STOCK — 99.0%
Basic Materials — 5.2%
Chemicals — 4.7%
DowDuPont, Inc.		75,732	$	4,037,273
FMC Corp.		18,394		1,413,027
The Mosaic Co.		36,151		987,284
Nutrien Ltd.		46,718		2,464,842
				8,902,426
Mining — 0.5%
Barrick Gold Corp.		72,186		989,670
				9,892,096
Communications — 14.3%
Internet — 3.3%
Alphabet, Inc. Class A (a)		2,922		3,438,872
Booking Holdings, Inc. (a)		807		1,408,142
eBay, Inc.		38,805		1,441,218
				6,288,232
Media — 4.2%
Comcast Corp. Class A		168,275		6,727,635
Liberty Global PLC Series C (a)		52,549		1,272,211
				7,999,846
Telecommunications — 6.8%
Cisco Systems, Inc.		150,879		8,145,957
Verizon Communications, Inc.		81,860		4,840,382
				12,986,339
				27,274,417
Consumer, Cyclical — 7.0%
Airlines — 2.6%
Delta Air Lines, Inc.		55,554		2,869,364
Southwest Airlines Co.		39,980		2,075,362
				4,944,726
Home Builders — 0.2%
Toll Brothers, Inc.		13,339		482,872
Lodging — 1.6%
Las Vegas Sands Corp.		24,097		1,468,953
Wyndham Destinations, Inc.		20,439		827,575
Wyndham Hotels & Resorts, Inc.		16,522		825,935
				3,122,463
Retail — 2.6%
AutoZone, Inc. (a)		1,081		1,107,074
Lowe’s Cos., Inc.		18,382		2,012,277
Target Corp.		21,662		1,738,592
				4,857,943
				13,408,004
Consumer, Non-cyclical — 22.4%
Beverages — 1.1%
Coca-Cola European Partners PLC		25,760	$	1,332,823
Molson Coors Brewing Co. Class B		13,185		786,485
				2,119,308

41 

	Number of Shares		Value
Biotechnology — 0.9%
Biogen, Inc. (a)		2,043		482,924
Gilead Sciences, Inc.		19,675		1,279,072
				1,761,996
Cosmetics & Personal Care — 3.0%
The Procter & Gamble Co.		54,423		5,662,713
Foods — 1.5%
Mondelez International, Inc. Class A		40,457		2,019,614
Tyson Foods, Inc. Class A		12,905		895,994
				2,915,608
Health Care – Products — 1.8%
Medtronic PLC		38,037		3,464,410
Health Care – Services — 2.2%
Anthem, Inc.		6,460		1,853,891
Quest Diagnostics, Inc.		17,951		1,614,154
UnitedHealth Group, Inc.		2,765		683,674
				4,151,719
Pharmaceuticals — 11.9%
Cigna Corp.		22,821		3,670,073
CVS Health Corp.		38,140		2,056,890
Johnson & Johnson		57,985		8,105,723
McKesson Corp.		8,954		1,048,155
Novartis AG Sponsored ADR		27,118		2,607,125
Novo Nordisk A/S Sponsored ADR		14,064		735,688
Pfizer, Inc.		100,724		4,277,748
				22,501,402
				42,577,156
Energy — 10.0%
Oil & Gas — 9.6%
Canadian Natural Resources Ltd.		47,227		1,298,742
Chevron Corp.		43,448		5,351,925
Cimarex Energy Co.		18,268		1,276,933
ConocoPhillips		40,628		2,711,513
Noble Energy, Inc.		92,534		2,288,366
Petroleo Brasileiro SA Sponsored ADR		35,318		562,262
Pioneer Natural Resources Co.		6,902		1,051,036
Royal Dutch Shell PLC Class A Sponsored ADR		60,230		3,769,796
				18,310,573
Oil & Gas Services — 0.4%
Apergy Corp. (a)		15,662		643,082
				18,953,655

The accompanying notes are an integral part of the portfolio of investments.

42 

	Number of Shares		Value
Financial — 24.0%
Banks — 9.0%
Bank of America Corp.		231,691	$	6,392,355
BB&T Corp.		14,777		687,574
Citigroup, Inc.		82,102		5,108,386
SunTrust Banks, Inc.		11,578		685,997
Wells Fargo & Co.		87,554		4,230,609
				17,104,921
Diversified Financial Services — 1.7%
American Express Co.		10,879		1,189,075
Discover Financial Services		29,829		2,122,631
				3,311,706
Insurance — 11.1%
The Allstate Corp.		38,651		3,640,151
American International Group, Inc.		78,277		3,370,608
Aon PLC		11,528		1,967,830
Berkshire Hathaway, Inc. Class B (a)		39,064		7,847,567
Chubb Ltd.		20,479		2,868,698
Everest Re Group Ltd.		6,198		1,338,520
				21,033,374
Real Estate Investment Trusts (REITS) — 2.2%
Equity Residential		16,231		1,222,519
Essex Property Trust, Inc.		3,659		1,058,329
SL Green Realty Corp.		20,701		1,861,434
				4,142,282
				45,592,283
Industrial — 9.8%
Aerospace & Defense — 3.2%
The Boeing Co.		5,336		2,035,257
United Technologies Corp.		31,977		4,121,516
				6,156,773
Building Materials — 1.4%
Cemex SAB de CV Sponsored ADR (a)		129,247		599,706
CRH PLC Sponsored ADR		33,050		1,024,550
Owens Corning		20,647		972,887
				2,597,143
Machinery – Diversified — 1.0%
Dover Corp.		19,799		1,857,146
Miscellaneous – Manufacturing — 1.3%
Eaton Corp. PLC		30,337		2,443,949
Transportation — 2.9%
Kansas City Southern		10,325		1,197,493
Union Pacific Corp.		16,982		2,839,390
United Parcel Service, Inc. Class B		14,221		1,589,055
				5,625,938
				18,680,949
Technology — 5.6%
Computers — 2.8%
DXC Technology Co.		46,404	$	2,984,241
Hewlett Packard Enterprise Co.		85,217		1,314,898
HP, Inc.		51,329		997,323
				5,296,462

43 

	Number of Shares		Value
Semiconductors — 0.5%
NXP Semiconductor NV		10,531		930,835
Software — 2.3%
Microsoft Corp.		13,716		1,617,665
Oracle Corp.		51,972		2,791,416
				4,409,081
				10,636,378
Utilities — 0.7%
Electric — 0.7%
Edison International		20,703		1,281,930
TOTAL COMMON STOCK
(Cost $176,995,278)				188,296,868
TOTAL EQUITIES
(Cost $176,995,278)				188,296,868
TOTAL LONG-TERM INVESTMENTS
(Cost $176,995,278)				188,296,868

		Principal  Amount
SHORT-TERM INVESTMENTS — 0.9%
Repurchase Agreement — 0.9%
Fixed Income Clearing Corp., Repurchase Agreement, dated 3/29/19, 1.250%, due 4/01/19 (b)	$	1,695,468		1,695,468
TOTAL SHORT-TERM INVESTMENTS
(Cost $1,695,468)				1,695,468
TOTAL INVESTMENTS — 99.9%
(Cost $178,690,746) (c)				189,992,336
Other Assets/(Liabilities) — 0.1%				157,169
NET ASSETS — 100.0%			$	190,149,505

Abbreviation Legend

ADR American Depositary Receipt

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

(a) Non-income producing security.

(b) Maturity value of $1,695,645. Collateralized by U.S. Government Agency obligations with a rate of 0.125%, maturity date of 4/15/22, and an aggregate market value, including accrued interest, of $1,730,516.

(c) See Note 3 for aggregate cost for federal tax purposes.

The accompanying notes are an integral part of the portfolio of investments.

44 

MML Global Fund – Portfolio of Investments

March 31, 2019 (Unaudited)

	Number of Shares		Value
EQUITIES — 99.2%
COMMON STOCK — 99.2%
Austria — 0.4%
Erste Group Bank AG		22,097	$	812,185
Brazil — 0.3%
Ambev SA		171,231		736,031
Canada — 1.9%
Canadian National Railway Co.		48,994		4,383,982
Cayman Islands — 0.2%
Sands China Ltd.		89,200		448,194
Denmark — 0.7%
Carlsberg A/S Class B		12,785		1,597,572
France — 10.3%
Air Liquide SA		17,641		2,246,178
Danone SA		50,778		3,916,703
Hermes International		810		535,308
Legrand SA		34,670		2,324,177
LVMH Moet Hennessy Louis Vuitton SE		15,088		5,564,154
Pernod Ricard SA		24,538		4,407,270
Schneider Electric SE		61,309		4,821,579
				23,815,369
Germany — 4.1%
Bayer AG Registered		59,643		3,854,635
Brenntag AG		22,599		1,163,239
Deutsche Boerse AG		7,129		914,043
Merck KGaA		16,103		1,836,093
MTU Aero Engines AG		7,124		1,612,953
				9,380,963
Ireland — 7.4%
Accenture PLC Class A		34,135		6,008,443
Linde PLC		5,893		1,036,755
Linde PLC (a)		20,112		3,522,744
Medtronic PLC		69,923		6,368,587
				16,936,529
Israel — 1.4%
Check Point Software Technologies Ltd. (a)		24,912		3,151,119
Japan — 2.7%
Hoya Corp.		23,900		1,581,459
Kubota Corp.		181,400		2,632,688
Olympus Corp.		191,200		2,079,070
				6,293,217
Mexico — 0.3%
Grupo Financiero Banorte SAB de CV Class O		113,906		618,817
Netherlands — 2.6%
Akzo Nobel NV (a)		31,833	$	2,823,553
Heineken NV		20,927		2,210,753
Schlumberger Ltd.		24,106		1,050,299
				6,084,605

45 

	Number of Shares		Value
Republic of Korea — 0.8%
Samsung Electronics Co. Ltd.		46,608		1,832,840
Spain — 1.2%
Aena SME SA (b)		15,537		2,798,543
Sweden — 2.3%
Essity AB Class B		185,380		5,350,891
Switzerland — 7.5%
Adecco Group AG Registered		20,395		1,089,259
Cie Financiere Richemont SA Registered		29,402		2,144,880
Julius Baer Group Ltd.		21,684		877,539
Nestle SA Registered		65,740		6,274,019
Roche Holding AG		14,242		3,925,943
Sonova Holding AG Registered		4,058		803,212
UBS Group AG Registered		170,741		2,072,724
				17,187,576
Thailand — 0.2%
Kasikornbank PCL		78,400		465,154
United Kingdom — 9.3%
Aon PLC		15,168		2,589,179
Aptiv PLC		14,030		1,115,245
Burberry Group PLC		49,624		1,267,425
Compass Group PLC		108,066		2,540,216
Diageo PLC		126,885		5,189,842
Reckitt Benckiser Group PLC		60,780		5,064,654
Whitbread PLC		23,482		1,556,447
WPP PLC		201,881		2,139,220
				21,462,228
United States — 45.6%
3M Co.		17,996		3,739,209
Abbott Laboratories		45,569		3,642,786
American Express Co.		28,279		3,090,895
Amphenol Corp. Class A		13,503		1,275,223
AutoZone, Inc. (a)		682		698,450
The Bank of New York Mellon Corp.		69,386		3,499,136
Cisco Systems, Inc.		42,872		2,314,659
Cognizant Technology Solutions Corp. Class A		36,601		2,651,743
Colgate-Palmolive Co.		38,460		2,636,048
Comcast Corp. Class A		166,288		6,648,194
The Cooper Cos., Inc.		9,483		2,808,580
Coty, Inc. Class A		117,358		1,349,617
eBay, Inc.		53,482		1,986,322
Equifax, Inc.		14,632		1,733,892

The accompanying notes are an integral part of the portfolio of investments.

46 

	Number of Shares		Value
The Goldman Sachs Group, Inc.		10,900	$	2,092,691
Harley-Davidson, Inc.		18,985		677,005
Honeywell International, Inc.		34,852		5,538,680
Johnson & Johnson		6,610		924,012
Kansas City Southern		36,948		4,285,229
Kellogg Co.		32,303		1,853,546
Marriott International, Inc. Class A		1,491		186,509
Microchip Technology, Inc.		11,037		915,630
National Oilwell Varco, Inc.		16,551		440,919
NOW, Inc. (a)		9,674		135,049
Omnicom Group, Inc.		15,917		1,161,782
Oracle Corp.		65,677		3,527,512
PayPal Holdings, Inc. (a)		15,794		1,640,049
PPG Industries, Inc.		24,959		2,817,122
Resideo Technologies, Inc. (a)		5,935		114,486
Sally Beauty Holdings, Inc. (a)		30,071		553,607
State Street Corp.		49,399		3,250,948
Stryker Corp.		22,833		4,509,974
Thermo Fisher Scientific, Inc.		26,985		7,386,334
United Parcel Service, Inc. Class B		33,478		3,740,832
United Technologies Corp.		18,469		2,380,469
Visa, Inc. Class A		46,085		7,198,016
The Walt Disney Co.		39,199		4,352,265
Waters Corp. (a)		9,578		2,410,878
Wynn Resorts Ltd.		3,538		422,154
Zimmer Biomet Holdings, Inc.		32,911		4,202,735
				104,793,187
TOTAL COMMON STOCK
(Cost $184,942,289)				228,149,002
TOTAL EQUITIES
(Cost $184,942,289)				228,149,002
TOTAL LONG-TERM INVESTMENTS
(Cost $184,942,289)				228,149,002

	Principal Amount
SHORT-TERM INVESTMENTS — 0.8%
Repurchase Agreement — 0.8%
Fixed Income Clearing Corp., Repurchase Agreement, dated 3/29/19, 1.250%, due 4/01/19 (c)	$	1,849,576		1,849,576
TOTAL SHORT-TERM INVESTMENTS
(Cost $1,849,576)				1,849,576
TOTAL INVESTMENTS — 100.0%
(Cost $186,791,865) (d)				229,998,578
Other Assets/(Liabilities) — 0.0%				38,655
NET ASSETS — 100.0%			$	230,037,233

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

(a) Non-income producing security.

(b) Securities exempt from registration under rule 144A of the Securities Act of 1933. These securities may be resold in transactions exempt from registration, normally to qualified institutional buyers. At March 31, 2019, these securities amounted to a value of $2,798,543 or 1.22% of net assets.

(c) Maturity value of $1,849,769. Collateralized by U.S. Government Agency obligations with a rate of 1.750%, maturity date of 5/31/22, and an aggregate market value, including accrued interest, of $1,890,185.

(d) See Note 3 for aggregate cost for federal tax purposes.

The accompanying notes are an integral part of the portfolio of investments.

47 

MML Growth Allocation Fund – Portfolio of Investments

March 31, 2019 (Unaudited)

	Number of Shares		Value
MUTUAL FUNDS — 100.1%
Equity Funds — 74.8%
MML Blue Chip Growth Fund, Initial Class (a)		3,968,363	$	67,303,433
MML Equity Income Fund, Initial Class (a)		6,702,795		74,669,139
MML Equity Index Fund, Class III (a)		2,034,888		64,851,896
MML Focused Equity Fund, Class II (a)		3,740,281		22,553,893
MML Foreign Fund, Initial Class (a)		6,811,157		67,907,238
MML Fundamental Growth Fund, Class II (a)		3,032,008		33,109,531
MML Fundamental Value Fund, Class II (a)		5,032,112		67,832,863
MML Global Fund, Class I (a)		6,219,957		73,208,899
MML Income & Growth Fund, Initial Class (a)		8,098,278		76,771,672
MML International Equity Fund, Class II (a)		6,958,411		67,774,928
MML Large Cap Growth Fund, Initial Class (a)		1,925,781		21,645,783
MML Mid Cap Growth Fund, Initial Class (a)		4,442,531		71,924,581
MML Mid Cap Value Fund, Initial Class (a)		6,580,520		69,687,702
MML Small Cap Growth Equity Fund, Initial Class (a)		963,182		14,824,478
MML Small Company Value Fund, Class II (a)		1,899,003		29,643,434
MML Small/Mid Cap Value Fund, Initial Class (a)		2,033,873		24,142,076
MML Strategic Emerging Markets Fund, Class II (a)		5,211,948		59,416,205
Oppenheimer Discovery Mid Cap Growth Fund/VA, Non-Service Shares (a)		280,746		22,981,838
Oppenheimer Global Fund/VA, Non-Service Shares (a)		789,715		35,055,432
Oppenheimer Global Multi-Alternatives Fund/VA, Non-Service Shares (a)		12,885,252		125,631,208
Oppenheimer International Growth Fund/VA, Non-Service Shares (a)		15,160,211		34,262,076
Oppenheimer Main Street Fund/VA, Non-Service Shares (a)		903,284		27,739,861
				1,152,938,166
Fixed Income Funds — 25.3%
MML Dynamic Bond Fund, Class II (a)		8,460,641	$	84,014,164
MML High Yield Fund, Class II (a)		1,211,238		11,700,563
MML Inflation-Protected and Income Fund, Initial Class (a)		5,984,179		60,081,160
MML Managed Bond Fund, Initial Class (a)		9,631,302		119,050,819
MML Short-Duration Bond Fund, Class II (a)		4,109,796		40,070,511
MML Total Return Bond Fund, Class II (a)		7,139,741		74,895,880
				389,813,097
TOTAL MUTUAL FUNDS
(Cost $1,551,371,197)				1,542,751,263
TOTAL LONG-TERM INVESTMENTS
(Cost $1,551,371,197)				1,542,751,263
TOTAL INVESTMENTS — 100.1%
(Cost $1,551,371,197) (b)				1,542,751,263
Other Assets/(Liabilities) — (0.1)%				(951,873	)
NET ASSETS — 100.0%			$	1,541,799,390

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

(a) Affiliated issuer. See Note 4 for a summary of transactions in the investments of affiliated issuers.

(b) See Note 3 for aggregate cost for federal tax purposes.

The accompanying notes are an integral part of the portfolio of investments.

48 

MML Growth & Income Fund – Portfolio of Investments

March 31, 2019 (Unaudited)

	Number of Shares		Value
EQUITIES — 99.2%
COMMON STOCK — 99.2%
Basic Materials — 2.4%
Chemicals — 2.4%
PPG Industries, Inc.		12,574	$	1,419,227
The Sherwin-Williams Co.		4,608		1,984,712
				3,403,939
Communications — 10.0%
Internet — 6.2%
Alphabet, Inc. Class A (a)		4,083		4,805,242
Alphabet, Inc. Class C (a)		1,620		1,900,762
Facebook, Inc. Class A (a)		12,804		2,134,299
				8,840,303
Media — 2.6%
Comcast Corp. Class A		71,634		2,863,927
The Walt Disney Co.		7,185		797,751
				3,661,678
Telecommunications — 1.2%
Cisco Systems, Inc.		30,922		1,669,479
				14,171,460
Consumer, Cyclical — 9.3%
Apparel — 2.3%
LVMH Moet Hennessy Louis Vuitton SE		4,633		1,708,558
NIKE, Inc. Class B		17,414		1,466,433
				3,174,991
Retail — 7.0%
Costco Wholesale Corp.		7,072		1,712,414
Dollar General Corp.		8,712		1,039,341
Dollar Tree, Inc. (a)		9,344		981,494
Ross Stores, Inc.		20,229		1,883,320
Starbucks Corp.		31,711		2,357,396
Tractor Supply Co.		20,337		1,988,145
				9,962,110
				13,137,101
Consumer, Non-cyclical — 24.9%
Beverages — 2.5%
Diageo PLC		38,020		1,555,092
Pernod Ricard SA		11,232		2,017,379
				3,572,471
Biotechnology — 0.8%
Biogen, Inc. (a)		4,564		1,078,838
Cosmetics & Personal Care — 2.0%
Colgate-Palmolive Co.		26,367		1,807,194
The Estee Lauder Cos., Inc. Class A		5,884		974,096
				2,781,290
Foods — 3.2%
Danone SA		24,800	$	1,912,920
Mondelez International, Inc. Class A		52,380		2,614,809
				4,527,729

49 

	Number of Shares		Value
Health Care – Products — 9.0%
Abbott Laboratories		19,143		1,530,291
Becton Dickinson and Co.		3,950		986,434
Danaher Corp.		26,736		3,529,687
Medtronic PLC		35,865		3,266,584
Thermo Fisher Scientific, Inc.		12,898		3,530,441
				12,843,437
Household Products & Wares — 0.8%
Kimberly-Clark Corp.		9,638		1,194,148
Pharmaceuticals — 6.6%
Elanco Animal Health, Inc. (a)		39,417		1,264,103
Eli Lilly & Co.		14,379		1,865,819
Johnson & Johnson		26,579		3,715,478
McKesson Corp.		9,807		1,148,008
Zoetis, Inc.		13,709		1,380,085
				9,373,493
				35,371,406
Energy — 4.8%
Oil & Gas — 1.6%
EOG Resources, Inc.		24,413		2,323,629
Oil & Gas Services — 1.6%
Core Laboratories NV		8,285		571,085
Schlumberger Ltd.		38,489		1,676,966
				2,248,051
Pipelines — 1.6%
Enterprise Products Partners LP (b)		77,801		2,264,009
				6,835,689
Financial — 21.1%
Banks — 8.1%
Bank of America Corp.		120,264		3,318,084
BB&T Corp.		29,125		1,355,186
The Goldman Sachs Group, Inc.		9,246		1,775,140
JP Morgan Chase & Co.		37,606		3,806,855
Morgan Stanley		29,256		1,234,603
				11,489,868
Diversified Financial Services — 7.9%
Mastercard, Inc. Class A		14,146		3,330,676
Nasdaq, Inc.		23,473		2,053,653
TD Ameritrade Holding Corp.		20,747		1,037,142
Visa, Inc. Class A		30,533		4,768,949
				11,190,420
Insurance — 1.1%
Chubb Ltd.		11,524		1,614,282

The accompanying notes are an integral part of the portfolio of investments.

50 

	Number of Shares		Value
Private Equity — 1.1%
The Blackstone Group LP (b)		43,811	$	1,532,071
Real Estate Investment Trusts (REITS) — 2.9%
American Tower Corp.		21,258		4,189,102
				30,015,743
Industrial — 9.6%
Aerospace & Defense — 1.4%
United Technologies Corp.		15,842		2,041,876
Electrical Components & Equipment — 1.1%
AMETEK, Inc.		19,436		1,612,605
Electronics — 3.7%
Fortive Corp.		15,345		1,287,292
Honeywell International, Inc.		17,192		2,732,153
TE Connectivity Ltd.		14,942		1,206,566
				5,226,011
Engineering & Construction — 0.4%
Fluor Corp.		15,564		572,755
Packaging & Containers — 1.2%
Crown Holdings, Inc. (a)		31,788		1,734,671
Transportation — 1.8%
Canadian National Railway Co.		28,123		2,516,446
				13,704,364
Technology — 16.6%
Computers — 7.0%
Accenture PLC Class A		15,648		2,754,361
Amdocs Ltd.		28,568		1,545,815
Apple, Inc.		8,477		1,610,206
Cognizant Technology Solutions Corp. Class A		35,344		2,560,673
DXC Technology Co.		24,427		1,570,900
				10,041,955
Semiconductors — 2.6%
Analog Devices, Inc.		13,043		1,373,037
Texas Instruments, Inc.		21,592		2,290,263
				3,663,300
Software — 7.0%
Adobe, Inc. (a)		7,119		1,897,142
Electronic Arts, Inc. (a)		15,716		1,597,217
Fidelity National Information Services, Inc.		26,669		3,016,264
Microsoft Corp.		19,863		2,342,642
salesforce.com, Inc. (a)		6,854		1,085,468
				9,938,733
				23,643,988
Utilities — 0.5%
Electric — 0.5%
American Electric Power Co., Inc.		8,974	$	751,573
TOTAL COMMON STOCK
(Cost $92,420,701)				141,035,263

51 

	Number of Shares	Value
TOTAL EQUITIES
(Cost $92,420,701)		141,035,263
TOTAL LONG-TERM INVESTMENTS
(Cost $92,420,701)		141,035,263

	Principal Amount
SHORT-TERM INVESTMENTS — 0.8%
Repurchase Agreement — 0.8%
Fixed Income Clearing Corp., Repurchase Agreement, dated 3/29/19, 1.250%, due 4/01/19 (c)	$	1,175,984		1,175,984
TOTAL SHORT-TERM INVESTMENTS
(Cost $1,175,984)				1,175,984
TOTAL INVESTMENTS — 100.0%
(Cost $93,596,685) (d)				142,211,247
Other Assets/(Liabilities) — (0.0)%				(46,339	)
NET ASSETS — 100.0%			$	142,164,908

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

(a) Non-income producing security.

(b) Security is a Master Limited Partnership.

(c) Maturity value of $1,176,106. Collateralized by U.S. Government Agency obligations with a rate of 2.375%, maturity date of 3/15/22, and an aggregate market value, including accrued interest, of $1,202,797.

(d) See Note 3 for aggregate cost for federal tax purposes.

The accompanying notes are an integral part of the portfolio of investments. 

52 

MML Income & Growth Fund – Portfolio of Investments

March 31, 2019 (Unaudited)

	Number of Shares		Value
EQUITIES — 98.2%
COMMON STOCK — 98.2%
Basic Materials — 5.9%
Chemicals — 5.9%
Air Products & Chemicals, Inc.		14,205	$	2,712,587
DowDuPont, Inc.		113,525		6,052,018
Linde PLC		38,603		6,791,426
LyondellBasell Industries NV Class A		13,743		1,155,511
				16,711,542
				16,711,542
Communications — 4.2%
Internet — 0.8%
eBay, Inc.		59,519		2,210,536
Media — 1.0%
Comcast Corp. Class A		66,209		2,647,036
Telecommunications — 2.4%
AT&T, Inc.		90,982		2,853,195
Verizon Communications, Inc.		66,912		3,956,507
				6,809,702
				11,667,274
Consumer, Cyclical — 9.8%
Airlines — 0.5%
Southwest Airlines Co.		25,790		1,338,759
Food Services — 0.7%
Aramark		65,192		1,926,423
Home Builders — 0.5%
Lennar Corp. Class A		27,364		1,343,299
Home Furnishing — 0.6%
Whirlpool Corp.		12,376		1,644,647
Leisure Time — 1.6%
Norwegian Cruise Line Holdings Ltd. (a)		41,003		2,253,525
Royal Caribbean Cruises Ltd.		19,585		2,244,832
				4,498,357
Lodging — 0.7%
MGM Resorts International		79,383		2,036,968
Retail — 5.2%
Advance Auto Parts, Inc.		12,474		2,127,191
Dollar General Corp.		23,090		2,754,637
Lowe’s Cos., Inc.		55,551		6,081,168
Target Corp.		48,052		3,856,654
				14,819,650
				27,608,103
Consumer, Non-cyclical — 14.6%
Agriculture — 1.5%
Philip Morris International, Inc.		48,560		4,292,218
Beverages — 0.8%
Coca-Cola European Partners PLC (a)		42,256	$	2,186,325
Commercial Services — 1.1%
AMERCO		4,677		1,737,552
Nielsen Holdings PLC		55,800		1,320,786
				3,058,338

 53

	Number of Shares		Value
Health Care – Products — 0.9%
Medtronic PLC		27,412		2,496,685
Health Care – Services — 2.2%
Anthem, Inc.		11,378		3,265,259
UnitedHealth Group, Inc.		12,105		2,993,082
				6,258,341
Pharmaceuticals — 8.1%
Cardinal Health, Inc.		38,818		1,869,087
CVS Health Corp.		80,780		4,356,465
Johnson & Johnson		24,398		3,410,596
Merck & Co., Inc.		17,952		1,493,068
Pfizer, Inc.		153,069		6,500,841
Sanofi ADR		100,899		4,467,808
Teva Pharmaceutical Industries Ltd. Sponsored ADR (a)		41,918		657,274
				22,755,139
				41,047,046
Energy — 13.4%
Oil & Gas — 12.2%
BP PLC Sponsored ADR		144,771		6,329,388
Chevron Corp.		17,167		2,114,631
ConocoPhillips		62,863		4,195,476
EOG Resources, Inc.		14,918		1,419,895
Hess Corp.		39,817		2,398,178
Kosmos Energy Ltd.		234,216		1,459,166
Occidental Petroleum Corp.		52,828		3,497,213
Parsley Energy, Inc. Class A (a)		78,759		1,520,049
Phillips 66		66,304		6,310,152
Valero Energy Corp.		42,171		3,577,366
Vermilion Energy, Inc. (b)		56,911		1,405,702
				34,227,216
Oil & Gas Services — 1.2%
Schlumberger Ltd.		80,755		3,518,496
				37,745,712
Financial — 22.7%
Banks — 11.2%
Bank of America Corp.		128,029		3,532,320
The Bank of New York Mellon Corp.		44,246		2,231,326
JP Morgan Chase & Co.		72,449		7,334,012
State Street Corp.		85,883		5,651,960
US Bancorp		128,927		6,212,992

The accompanying notes are an integral part of the portfolio of investments.

 54

	Number of Shares		Value
Wells Fargo & Co.		136,362	$	6,589,012
				31,551,622
Diversified Financial Services — 4.2%
American Express Co.		59,130		6,462,909
E*TRADE Financial Corp.		42,128		1,956,003
Navient Corp.		89,747		1,038,373
SLM Corp.		243,795		2,416,008
				11,873,293
Insurance — 3.7%
Berkshire Hathaway, Inc. Class B (a)		11,427		2,295,570
Chubb Ltd.		29,910		4,189,793
Fidelity National Financial, Inc.		35,992		1,315,508
Willis Towers Watson PLC		14,445		2,537,264
				10,338,135
Real Estate Investment Trusts (REITS) — 3.0%
HCP, Inc.		136,793		4,281,621
Liberty Property Trust		38,523		1,865,284
MGM Growth Properties LLC Class A		69,805		2,251,211
				8,398,116
Savings & Loans — 0.6%
New York Community Bancorp, Inc.		134,322		1,554,106
				63,715,272
Industrial — 11.8%
Aerospace & Defense — 3.2%
Spirit AeroSystems Holdings, Inc. Class A		26,810		2,453,919
United Technologies Corp.		51,021		6,576,097
				9,030,016
Building Materials — 2.6%
Johnson Controls International PLC		165,211		6,102,894
Owens Corning		27,163		1,279,921
				7,382,815
Engineering & Construction — 0.6%
Jacobs Engineering Group, Inc.		21,616		1,625,307
Hand & Machine Tools — 2.3%
Stanley Black & Decker, Inc.		48,636		6,622,764
Machinery – Diversified — 0.6%
Wabtec Corp.		22,840		1,683,765
Miscellaneous – Manufacturing — 2.5%
General Electric Co.		693,489		6,927,955
				33,272,622
Technology — 8.6%
Computers — 1.2%
International Business Machines Corp.		23,440		3,307,384
Semiconductors — 4.7%
Broadcom, Inc.		8,623		2,593,022
Marvell Technology Group Ltd.		116,593	$	2,319,035
Microchip Technology, Inc.		21,528		1,785,963
QUALCOMM, Inc.		77,612		4,426,212
Texas Instruments, Inc.		20,000		2,121,400
				13,245,632
Software — 2.7%
Microsoft Corp.		20,976		2,473,909
Oracle Corp.		97,374		5,229,958
				7,703,867
				24,256,883

 55

	Number of Shares		Value
Utilities — 7.2%
Electric — 7.2%
Dominion Energy, Inc.		99,862		7,655,421
Entergy Corp.		53,017		5,070,016
Exelon Corp.		150,790		7,559,102
				20,284,539
TOTAL COMMON STOCK
(Cost $270,182,913)				276,308,993
TOTAL EQUITIES
(Cost $270,182,913)				276,308,993
MUTUAL FUNDS — 0.1%
Diversified Financial Services — 0.1%
State Street Navigator Securities Lending Prime Portfolio (c)		252,500		252,500
TOTAL MUTUAL FUNDS
(Cost $252,500)				252,500
TOTAL LONG-TERM INVESTMENTS
(Cost $270,435,413)				276,561,493

	Principal Amount
SHORT-TERM INVESTMENTS — 1.4%
Repurchase Agreement — 1.4%
Fixed Income Clearing Corp., Repurchase Agreement, dated 3/29/19, 1.250%, due 4/01/19 (d)	$	3,893,476		3,893,476
TOTAL SHORT-TERM INVESTMENTS
(Cost $3,893,476)				3,893,476
TOTAL INVESTMENTS — 99.7%
(Cost $274,328,889) (e)				280,454,969
Other Assets/(Liabilities) — 0.3%				743,440
NET ASSETS — 100.0%			$	281,198,409

Abbreviation Legend

ADR American Depositary Receipt

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

(a) Non-income producing security.

(b) Denotes all or a portion of security on loan. The total value of securities on loan as of March 31, 2019, was $247,000 or 0.09% of net assets. Total securities on loan may not correspond with the amounts identified in the Portfolio of Investments because pending sales may be in the process of recall from the brokers. (Note 2).

(c) Represents investment of security lending collateral. (Note 2).

(d) Maturity value of $3,893,882. Collateralized by U.S. Government Agency obligations with rates ranging from 1.875% – 2.375%, maturity dates ranging from 3/15/22 – 4/30/22, and an aggregate market value, including accrued interest, of $3,973,699.

(e) See Note 3 for aggregate cost for federal tax purposes.

The accompanying notes are an integral part of the portfolio of investments.

 56

MML International Equity Fund – Portfolio of Investments

March 31, 2019 (Unaudited)

	Number of Shares		Value
EQUITIES — 97.0%
COMMON STOCK — 97.0%
Australia — 2.2%
AMP Ltd.		832,394	$	1,247,241
Brambles Ltd.		38,000		318,251
Orica Ltd.		175,667		2,206,512
				3,772,004
Canada — 1.6%
Alimentation Couche-Tard, Inc. Class B		8,000		471,254
Cenovus Energy, Inc.		277,815		2,411,534
				2,882,788
Cayman Islands — 1.1%
Baidu, Inc. Sponsored ADR (a)		11,985		1,975,727
France — 11.0%
Accor SA		79,200		3,209,827
BNP Paribas SA		156,850		7,517,429
Bureau Veritas SA		72,000		1,691,971
Danone SA		13,291		1,025,186
Publicis Groupe SA		59,502		3,191,909
Valeo SA		97,210		2,830,162
				19,466,484
Germany — 16.3%
Allianz SE Registered		19,390		4,312,706
Bayer AG Registered		78,494		5,072,946
Bayerische Motoren Werke AG		65,550		5,054,944
Continental AG		35,080		5,280,688
Daimler AG Registered		110,303		6,463,972
thyssenkrupp AG		190,200		2,612,915
				28,798,171
India — 0.6%
Axis Bank Ltd. (a)		85,942		960,098
Indonesia — 1.3%
Bank Mandiri Persero Tbk PT		4,354,500		2,280,704
Ireland — 3.4%
Ryanair Holdings PLC Sponsored ADR (a)		53,410		4,002,546
Willis Towers Watson PLC		11,679		2,051,416
				6,053,962
Italy — 3.4%
Intesa Sanpaolo SpA		2,463,000		6,002,271
Japan — 5.0%
Komatsu Ltd.		144,100		3,369,954
Olympus Corp.		142,100		1,545,167
Omron Corp. (b)		19,200		903,232
Toyota Motor Corp.		52,200		3,061,815
				8,880,168
Mexico — 0.8%
Grupo Televisa SAB Sponsored ADR		132,800	$	1,468,768
Netherlands — 7.5%
Akzo Nobel NV		11,520		1,021,812
ASML Holding NV		15,250		2,865,836
CNH Industrial NV		525,408		5,358,023
EXOR NV		61,400		3,988,572
				13,234,243

 57

	Number of Shares		Value
Republic of Korea — 2.8%
NAVER Corp.		20,795		2,275,014
Samsung Electronics Co. Ltd.		68,550		2,695,699
				4,970,713
South Africa — 2.1%
Naspers Ltd.		16,170		3,741,452
Sweden — 6.6%
Hennes & Mauritz AB Class B		350,118		5,838,343
SKF AB Class B		139,300		2,315,260
Volvo AB Class B		224,670		3,473,094
				11,626,697
Switzerland — 8.6%
Cie Financiere Richemont SA Registered		39,140		2,855,269
Credit Suisse Group AG Registered		531,623		6,206,015
Kuehne & Nagel International AG Registered		14,805		2,033,076
LafargeHolcim Ltd. Registered		64,090		3,171,146
Nestle SA Registered		10,030		957,232
				15,222,738
Taiwan — 1.2%
Taiwan Semiconductor Manufacturing Co. Ltd.		266,000		2,127,983
United Kingdom — 21.5%
Ashtead Group PLC		127,674		3,084,415
Diageo PLC		19,200		785,317
Experian PLC		19,700		533,783
Ferguson PLC		33,833		2,159,202
G4S PLC		602,800		1,445,077
Glencore PLC		1,186,100		4,933,097
Liberty Global PLC Series A (a)		77,500		1,931,300
Liberty Global PLC Series C (a)		86,600		2,096,586
Lloyds Banking Group PLC		6,517,900		5,287,190
Meggitt PLC		82,438		540,513
Reckitt Benckiser Group PLC		23,700		1,974,865
Rolls-Royce Holdings PLC		151,300		1,787,076
Royal Bank of Scotland Group PLC		955,700		3,082,894
Schroders PLC		109,100		3,840,992
Smiths Group PLC		86,200		1,613,068

The accompanying notes are an integral part of the portfolio of investments.

 58

	Number of Shares		Value
WPP PLC		274,000	$	2,903,425
				37,998,800
TOTAL COMMON STOCK
(Cost $188,442,862)				171,463,771
TOTAL EQUITIES
(Cost $188,442,862)				171,463,771
MUTUAL FUNDS — 0.1%
United States — 0.1%
State Street Navigator Securities Lending Prime Portfolio (c)		230,770		230,770
TOTAL MUTUAL FUNDS
(Cost $230,770)				230,770
TOTAL LONG-TERM INVESTMENTS
(Cost $188,673,632)				171,694,541

		Principal Amount
SHORT-TERM INVESTMENTS — 2.4%
Repurchase Agreement — 2.4%
Fixed Income Clearing Corp., Repurchase Agreement, dated 3/29/19, 1.250%, due 4/01/19 (d)	$	4,196,450		4,196,450
TOTAL SHORT-TERM INVESTMENTS
(Cost $4,196,450)				4,196,450
TOTAL INVESTMENTS — 99.5%
(Cost $192,870,082) (e)				175,890,991
Other Assets/(Liabilities) — 0.5%				846,964
NET ASSETS — 100.0%			$	176,737,955

Abbreviation Legend

ADR American Depositary Receipt

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

(a) Non-income producing security.

(b) Denotes all or a portion of security on loan. The total value of securities on loan as of March 31, 2019, was $219,674 or 0.12% of net assets. Total securities on loan may not correspond with the amounts identified in the Portfolio of Investments because pending sales may be in the process of recall from the brokers. (Note 2).

(c) Represents investment of security lending collateral. (Note 2).

(d) Maturity value of $4,196,887. Collateralized by U.S. Government Agency obligations with a rate of 0.125%, maturity date of 4/15/22, and an aggregate market value, including accrued interest, of $4,285,331.

(e) See Note 3 for aggregate cost for federal tax purposes.

Forward contracts at March 31, 2019:

		Counterparty	Settlement Date	In Exchange for		Unrealized Appreciation/ (Depreciation)
Contract to Buy
CHF	224,000	State Street Bank and Trust Co.	6/19/19	$	233,069	$	(6,453	)
Contract to Deliver
CHF	3,135,000	State Street Bank and Trust Co.	6/19/19		3,318,198		146,578

Currency Legend

CHF Swiss Franc

The accompanying notes are an integral part of the portfolio of investments.

 59

MML Large Cap Growth Fund – Portfolio of Investments

March 31, 2019 (Unaudited)

	Number of Shares		Value
EQUITIES — 99.4%
COMMON STOCK — 99.4%
Communications — 29.0%
Internet — 24.0%
Alibaba Group Holding Ltd. Sponsored ADR (a)		32,345	$	5,901,345
Alphabet, Inc. Class A (a)		2,519		2,964,586
Alphabet, Inc. Class C (a)		2,525		2,962,608
Amazon.com, Inc. (a)		3,797		6,761,508
Facebook, Inc. Class A (a)		33,300		5,550,777
				24,140,824
Media — 1.9%
FactSet Research Systems, Inc.		7,578		1,881,390
Telecommunications — 3.1%
Cisco Systems, Inc.		58,736		3,171,156
				29,193,370
Consumer, Cyclical — 6.7%
Retail — 6.7%
Starbucks Corp.		44,519		3,309,542
Yum China Holdings, Inc.		33,793		1,517,644
Yum! Brands, Inc.		18,564		1,852,873
				6,680,059
Consumer, Non-cyclical — 27.0%
Beverages — 5.5%
The Coca-Cola Co.		50,558		2,369,148
Monster Beverage Corp. (a)		57,045		3,113,516
				5,482,664
Biotechnology — 5.1%
Amgen, Inc.		8,725		1,657,575
Regeneron Pharmaceuticals, Inc. (a)		8,396		3,447,566
				5,105,141
Commercial Services — 1.0%
Automatic Data Processing, Inc.		6,335		1,011,953
Cosmetics & Personal Care — 5.1%
Colgate-Palmolive Co.		29,542		2,024,808
The Procter & Gamble Co.		29,674		3,087,580
				5,112,388
Foods — 2.6%
Danone SA Sponsored ADR		172,607		2,656,422
Health Care – Products — 1.9%
Varian Medical Systems, Inc. (a)		13,711		1,943,123
Pharmaceuticals — 5.8%
Merck & Co., Inc.		14,922		1,241,063
Novartis AG Sponsored ADR		18,564		1,784,743
Novo Nordisk A/S Sponsored ADR		54,360		2,843,571
				5,869,377
				27,181,068
Energy — 1.8%
Oil & Gas Services — 1.8%
Schlumberger Ltd.		41,205	$	1,795,302

 60

	Number of Shares		Value
Financial — 9.7%
Diversified Financial Services — 9.7%
American Express Co.		10,096		1,103,493
SEI Investments Co.		39,495		2,063,614
Visa, Inc. Class A		42,118		6,578,410
				9,745,517
Industrial — 5.5%
Machinery – Diversified — 2.6%
Deere & Co.		16,425		2,625,372
Transportation — 2.9%
Expeditors International of Washington, Inc.		38,082		2,890,424
				5,515,796
Technology — 19.7%
Semiconductors — 4.9%
NVIDIA Corp.		13,997		2,513,301
QUALCOMM, Inc.		43,051		2,455,199
				4,968,500
Software — 14.8%
Autodesk, Inc. (a)		27,372		4,265,105
Cerner Corp. (a)		35,537		2,033,072
Microsoft Corp.		29,137		3,436,418
Oracle Corp.		95,410		5,124,471
				14,859,066
				19,827,566
TOTAL COMMON STOCK
(Cost $68,992,205)				99,938,678
TOTAL EQUITIES
(Cost $68,992,205)				99,938,678
TOTAL LONG-TERM INVESTMENTS
(Cost $68,992,205)				99,938,678

	Principal Amount
SHORT-TERM INVESTMENTS — 0.6%
Repurchase Agreement — 0.6%
Fixed Income Clearing Corp., Repurchase Agreement, dated 3/29/19, 1.250%, due 4/01/19 (b)	$	628,619	628,619
TOTAL SHORT-TERM INVESTMENTS
(Cost $628,619)			628,619

The accompanying notes are an integral part of the portfolio of investments.

 61

	Value
TOTAL INVESTMENTS — 100.0%
(Cost $69,620,824) (c)	$	100,567,297
Other Assets/(Liabilities) — (0.0)%		(35,251	)
NET ASSETS — 100.0%	$	100,532,046

Abbreviation Legend

ADR American Depositary Receipt

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

(a) Non-income producing security.

(b) Maturity value of $628,685. Collateralized by U.S. Government Agency obligations with a rate of 2.375%, maturity date of 3/15/22, and an aggregate market value, including accrued interest, of $644,176.

(c) See Note 3 for aggregate cost for federal tax purposes.

The accompanying notes are an integral part of the portfolio of investments.

 62

MML Managed Volatility Fund – Portfolio of Investments

March 31, 2019 (Unaudited)

	Number of Shares		Value
EQUITIES — 100.2%
COMMON STOCK — 100.2%
Basic Materials — 2.1%
Chemicals — 1.8%
Air Products & Chemicals, Inc. (a)		1,426	$	272,309
Albemarle Corp. (a)		707		57,960
Celanese Corp. (a)		819		80,762
CF Industries Holdings, Inc. (a)		1,446		59,112
DowDuPont, Inc. (a)		14,604		778,539
Eastman Chemical Co. (a)		897		68,064
FMC Corp. (a)		846		64,990
International Flavors & Fragrances, Inc. (a)		678		87,320
Linde PLC (a)		3,571		628,246
LyondellBasell Industries NV Class A (a)		2,020		169,842
The Mosaic Co. (a)		2,471		67,483
PPG Industries, Inc. (a)		1,521		171,675
The Sherwin-Williams Co. (a)		534		229,999
				2,736,301
Forest Products & Paper — 0.1%
International Paper Co. (a)		2,513		116,276
Iron & Steel — 0.1%
Nucor Corp. (a)		1,983		115,708
Mining — 0.1%
Freeport-McMoRan, Inc. (a)		9,016		116,216
Newmont Mining Corp. (a)		3,592		128,486
				244,702
				3,212,987
Communications — 15.1%
Advertising — 0.1%
The Interpublic Group of Cos., Inc. (a)		2,339		49,143
Omnicom Group, Inc. (a)		1,396		101,894
				151,037
Internet — 9.3%
Alphabet, Inc. Class A (a) (b)		1,954		2,299,643
Alphabet, Inc. Class C (a) (b)		1,993		2,338,407
Amazon.com, Inc. (a) (b)		2,683		4,777,752
Booking Holdings, Inc. (a) (b)		292		509,514
eBay, Inc. (a)		5,530		205,384
Expedia Group, Inc. (a)		795		94,605
F5 Networks, Inc. (a) (b)		369		57,907
Facebook, Inc. Class A (a) (b)		15,542		2,590,696
Netflix, Inc. (a) (b)		2,818		1,004,786
Symantec Corp. (a)		4,025		92,535
TripAdvisor, Inc. (a) (b)		678		34,883
Twitter, Inc. (a) (b)		4,640		152,563
VeriSign, Inc. (a) (b)		667	$	121,101
				14,279,776

 63

	Number of Shares		Value
Media — 2.3%
CBS Corp. Class B (a)		2,243		106,610
Charter Communications, Inc. Class A (a) (b)		1,132		392,702
Comcast Corp. Class A (a)		29,335		1,172,813
Discovery, Inc. Class A (a) (b)		1,098		29,668
Discovery, Inc. Class C (a) (b)		2,410		61,262
DISH Network Corp. Class A (a) (b)		1,613		51,116
Fox Corp. Class A (a) (b)		2,249		82,561
Fox Corp. Class B (a) (b)		1,084		38,894
News Corp. Class A (a)		2,786		34,658
News Corp. Class B (a)		778		9,717
Viacom, Inc. Class B (a)		2,184		61,305
The Walt Disney Co. (a)		12,967		1,439,679
				3,480,985
Telecommunications — 3.4%
Arista Networks, Inc. (a) (b)		353		111,004
AT&T, Inc. (a)		47,467		1,488,565
CenturyLink, Inc. (a)		6,378		76,472
Cisco Systems, Inc. (a)		28,645		1,546,544
Corning, Inc. (a)		5,049		167,122
Juniper Networks, Inc. (a)		2,245		59,425
Motorola Solutions, Inc. (a)		1,038		145,756
Verizon Communications, Inc. (a)		26,722		1,580,072
				5,174,960
				23,086,758
Consumer, Cyclical — 8.4%
Airlines — 0.4%
Alaska Air Group, Inc. (a)		869		48,768
American Airlines Group, Inc. (a)		2,758		87,594
Delta Air Lines, Inc. (a)		3,952		204,121
Southwest Airlines Co. (a)		3,181		165,126
United Continental Holdings, Inc. (a) (b)		1,531		122,143
				627,752
Apparel — 0.7%
Capri Holdings Ltd. (a) (b)		1,057		48,358
Hanesbrands, Inc. (a)		2,536		45,344
NIKE, Inc. Class B (a)		8,183		689,090
PVH Corp. (a)		482		58,780
Ralph Lauren Corp. (a)		318		41,238
Under Armour, Inc. Class A (a) (b)		1,341		28,349
Under Armour, Inc. Class C (a) (b)		1,292		24,380
VF Corp. (a)		2,080		180,773
				1,116,312
Auto Manufacturers — 0.5%
Ford Motor Co. (a)		25,072		220,132

The accompanying notes are an integral part of the portfolio of investments.

 64

	Number of Shares		Value
General Motors Co. (a)		8,349	$	309,748
PACCAR, Inc. (a)		2,352		160,265
				690,145
Auto Parts & Equipment — 0.1%
Aptiv PLC (a)		1,749		139,028
BorgWarner, Inc. (a)		1,381		53,044
				192,072
Distribution & Wholesale — 0.2%
Copart, Inc. (a) (b)		1,421		86,098
Fastenal Co. (a)		1,793		115,308
LKQ Corp. (a) (b)		2,179		61,840
W.W. Grainger, Inc. (a)		305		91,784
				355,030
Home Builders — 0.2%
D.R. Horton, Inc. (a)		2,212		91,533
Lennar Corp. Class A (a)		1,747		85,760
PulteGroup, Inc. (a)		1,867		52,201
				229,494
Home Furnishing — 0.1%
Leggett & Platt, Inc. (a)		920		38,843
Whirlpool Corp. (a)		388		51,561
				90,404
Housewares — 0.0%
Newell Brands, Inc. (a)		2,884		44,240
Leisure Time — 0.2%
Carnival Corp. (a)		2,534		128,524
Harley-Davidson, Inc. (a)		1,169		41,687
Norwegian Cruise Line Holdings Ltd. (a) (b)		1,454		79,912
Royal Caribbean Cruises Ltd. (a)		1,152		132,042
				382,165
Lodging — 0.4%
Hilton Worldwide Holdings, Inc. (a)		1,877		155,998
Marriott International, Inc. Class A (a)		1,802		225,412
MGM Resorts International (a)		3,144		80,675
Wynn Resorts Ltd. (a)		663		79,109
				541,194

 65

	Number of Shares		Value
Retail — 5.5%
Advance Auto Parts, Inc. (a)		484		82,537
AutoZone, Inc. (a) (b)		164		167,956
Best Buy Co., Inc. (a)		1,452		103,179
CarMax, Inc. (a) (b)		1,171		81,736
Chipotle Mexican Grill, Inc. (a) (b)		157		111,519
Costco Wholesale Corp. (a)		2,825		684,045
Darden Restaurants, Inc. (a)		826		100,334
Dollar General Corp. (a)		1,693		201,975
Dollar Tree, Inc. (a) (b)		1,479		155,354
Foot Locker, Inc. (a)		695		42,117
The Gap, Inc. (a)		1,532		40,108
Genuine Parts Co. (a)		977	$	109,453
The Home Depot, Inc. (a)		7,287		1,398,302
Kohl’s Corp. (a)		1,089		74,891
L Brands, Inc. (a)		1,502		41,425
Lowe’s Cos., Inc. (a)		5,165		565,413
Macy’s, Inc. (a)		2,157		51,833
McDonald’s Corp. (a)		4,993		948,171
Nordstrom, Inc. (a)		827		36,702
O’Reilly Automotive, Inc. (a) (b)		525		203,857
Ross Stores, Inc. (a)		2,333		217,202
Starbucks Corp. (a)		8,023		596,430
Tapestry, Inc. (a)		1,737		56,435
Target Corp. (a)		3,388		271,921
Tiffany & Co. (a)		719		75,890
The TJX Cos., Inc. (a)		8,065		429,139
Tractor Supply Co. (a)		753		73,613
Ulta Salon Cosmetics & Fragrance, Inc. (a) (b)		378		131,820
Walgreens Boots Alliance, Inc. (a)		5,292		334,825
Walmart, Inc. (a)		9,217		898,934
Yum! Brands, Inc. (a)		1,999		199,520
				8,486,636
Textiles — 0.0%
Mohawk Industries, Inc. (a) (b)		367		46,297
Toys, Games & Hobbies — 0.1%
Hasbro, Inc. (a)		802		68,186
Mattel, Inc. (a) (b)		2,425		31,525
				99,711
				12,901,452
Consumer, Non-cyclical — 22.5%
Agriculture — 1.1%
Altria Group, Inc. (a)		12,125		696,339
Archer-Daniels-Midland Co. (a)		3,782		163,118
Philip Morris International, Inc. (a)		10,042		887,612
				1,747,069
Beverages — 1.8%
Brown-Forman Corp. Class B (a)		1,119		59,061
The Coca-Cola Co. (a)		25,128		1,177,498
Constellation Brands, Inc. Class A (a)		1,085		190,233
Molson Coors Brewing Co. Class B (a)		1,170		69,790
Monster Beverage Corp. (a) (b)		2,528		137,978
PepsiCo, Inc. (a)		9,145		1,120,720
				2,755,280
Biotechnology — 2.0%
Alexion Pharmaceuticals, Inc. (a) (b)		1,428		193,037
Amgen, Inc. (a)		4,057		770,749
Biogen, Inc. (a) (b)		1,299		307,058
Celgene Corp. (a) (b)		4,509		425,379
Gilead Sciences, Inc. (a)		8,347		542,639

The accompanying notes are an integral part of the portfolio of investments.

 66

	Number of Shares		Value
Illumina, Inc. (a) (b)		945	$	293,602
Incyte Corp. (a) (b)		1,122		96,503
Regeneron Pharmaceuticals, Inc. (a) (b)		499		204,899
Vertex Pharmaceuticals, Inc. (a) (b)		1,680		309,036
				3,142,902
Commercial Services — 2.2%
Automatic Data Processing, Inc. (a)		2,821		450,626
Cintas Corp. (a)		578		116,820
Ecolab, Inc. (a)		1,644		290,232
Equifax, Inc. (a)		766		90,771
FleetCor Technologies, Inc. (a) (b)		597		147,214
Gartner, Inc. (a) (b)		606		91,918
Global Payments, Inc. (a)		1,059		144,575
H&R Block, Inc. (a)		1,471		35,216
IHS Markit Ltd. (a) (b)		2,294		124,748
Moody’s Corp. (a)		1,064		192,680
Nielsen Holdings PLC (a)		2,358		55,814
PayPal Holdings, Inc. (a) (b)		7,617		790,949
Quanta Services, Inc. (a)		1,053		39,740
Robert Half International, Inc. (a)		727		47,371
Rollins, Inc. (a)		1,057		43,992
S&P Global, Inc. (a)		1,612		339,407
Total System Services, Inc. (a)		1,057		100,426
United Rentals, Inc. (a) (b)		545		62,266
Verisk Analytics, Inc. (a)		1,038		138,054
				3,302,819
Cosmetics & Personal Care — 1.5%
Colgate-Palmolive Co. (a)		5,516		378,067
Coty, Inc. Class A		3,329		38,283
The Estee Lauder Cos., Inc. Class A (a)		1,447		239,551
The Procter & Gamble Co. (a)		16,267		1,692,581
				2,348,482
Foods — 1.3%
Campbell Soup Co. (a)		1,341		51,132
Conagra Brands, Inc. (a)		3,248		90,100
General Mills, Inc. (a)		3,793		196,288
The Hershey Co. (a)		933		107,136
Hormel Foods Corp. (a)		1,910		85,492
The J.M. Smucker Co. (a)		684		79,686
Kellogg Co. (a)		1,555		89,226
The Kraft Heinz Co. (a)		3,972		129,686
The Kroger Co. (a)		5,073		124,796
Lamb Weston Holdings, Inc. (a)		985		73,816
McCormick & Co., Inc. (a)		767		115,533
Mondelez International, Inc. Class A (a)		9,365		467,501
Sysco Corp. (a)		3,036		202,683
Tyson Foods, Inc. Class A (a)		1,864		129,417
				1,942,492

 67

	Number of Shares		Value
Health Care – Products — 4.0%
Abbott Laboratories (a)		11,383	$	909,957
ABIOMED, Inc. (a) (b)		297		84,820
Align Technology, Inc. (a) (b)		474		134,773
Baxter International, Inc. (a)		3,179		258,485
Becton Dickinson and Co. (a)		1,733		432,782
Boston Scientific Corp. (a) (b)		8,891		341,237
The Cooper Cos., Inc. (a)		308		91,220
Danaher Corp. (a)		4,109		542,470
DENTSPLY SIRONA, Inc. (a)		1,476		73,195
Edwards Lifesciences Corp. (a) (b)		1,377		263,461
Henry Schein, Inc. (a) (b)		927		55,722
Hologic, Inc. (a) (b)		1,796		86,926
IDEXX Laboratories, Inc. (a) (b)		579		129,464
Intuitive Surgical, Inc. (a) (b)		736		419,947
Medtronic PLC (a)		8,703		792,669
ResMed, Inc. (a)		943		98,044
Stryker Corp. (a)		2,004		395,830
Teleflex, Inc. (a)		289		87,324
Thermo Fisher Scientific, Inc. (a)		2,607		713,588
Varian Medical Systems, Inc. (a) (b)		573		81,206
Zimmer Biomet Holdings, Inc. (a)		1,303		166,393
				6,159,513
Health Care – Services — 2.1%
Anthem, Inc. (a)		1,672		479,830
Centene Corp. (a) (b)		2,611		138,644
DaVita, Inc. (a) (b)		807		43,812
HCA Healthcare, Inc. (a)		1,760		229,469
Humana, Inc. (a)		892		237,272
IQVIA Holdings, Inc. (a) (b)		1,069		153,776
Laboratory Corp. of America Holdings (a) (b)		671		102,650
Quest Diagnostics, Inc. (a)		833		74,903
UnitedHealth Group, Inc. (a)		6,250		1,545,375
Universal Health Services, Inc. Class B (a)		562		75,179
WellCare Health Plans, Inc. (a) (b)		314		84,701
				3,165,611
Household Products & Wares — 0.4%
Avery Dennison Corp. (a)		524		59,212
Church & Dwight Co., Inc. (a)		1,640		116,817
The Clorox Co. (a)		851		136,552
Kimberly-Clark Corp. (a)		2,270		281,253
				593,834
Pharmaceuticals — 6.1%
AbbVie, Inc. (a)		9,596		773,342
Allergan PLC (a)		2,036		298,091
AmerisourceBergen Corp. (a)		1,061		84,371
Bristol-Myers Squibb Co. (a)		10,526		502,195
Cardinal Health, Inc. (a)		1,873		90,185
Cigna Corp. (a) (b)		2,456		394,974

The accompanying notes are an integral part of the portfolio of investments.

 68

	Number of Shares		Value
CVS Health Corp. (a)		8,337	$	449,614
Eli Lilly & Co. (a)		6,002		778,819
Johnson & Johnson (a)		17,372		2,428,432
McKesson Corp. (a)		1,243		145,506
Merck & Co., Inc. (a)		16,857		1,401,997
Mylan NV (a) (b)		3,316		93,975
Nektar Therapeutics (a) (b)		1,135		38,136
Perrigo Co. PLC (a)		708		34,097
Pfizer, Inc. (a)		36,147		1,535,163
Zoetis, Inc. (a)		3,165		318,621
				9,367,518
				34,525,520
Energy — 5.4%
Oil & Gas — 4.5%
Anadarko Petroleum Corp. (a)		3,151		143,307
Apache Corp. (a)		2,363		81,902
Cabot Oil & Gas Corp. (a)		2,902		75,742
Chevron Corp. (a)		12,370		1,523,737
Cimarex Energy Co. (a)		665		46,483
Concho Resources, Inc. (a)		1,304		144,692
ConocoPhillips (a)		7,432		496,012
Devon Energy Corp. (a)		3,101		97,867
Diamondback Energy, Inc. (a)		1,035		105,083
EOG Resources, Inc. (a)		3,701		352,261
Exxon Mobil Corp. (a)		27,582		2,228,626
Helmerich & Payne, Inc. (a)		778		43,226
Hess Corp. (a)		1,660		99,982
HollyFrontier Corp. (a)		1,080		53,212
Marathon Oil Corp. (a)		5,539		92,557
Marathon Petroleum Corp. (a)		4,345		260,048
Noble Energy, Inc. (a)		3,176		78,542
Occidental Petroleum Corp. (a)		4,938		326,896
Phillips 66 (a)		2,705		257,435
Pioneer Natural Resources Co. (a)		1,072		163,244
Valero Energy Corp. (a)		2,763		234,385
				6,905,239
Oil & Gas Services — 0.5%
Baker Hughes a GE Co. (a)		3,470		96,188
Halliburton Co. (a)		5,550		162,615
National Oilwell Varco, Inc. (a)		2,366		63,030
Schlumberger Ltd. (a)		8,866		386,292
TechnipFMC PLC (a)		2,800		65,856
				773,981
Pipelines — 0.4%
Kinder Morgan, Inc. (a)		12,048		241,080
ONEOK, Inc. (a)		2,603		181,794
The Williams Cos., Inc. (a)		7,898		226,831
				649,705
				8,328,925

 69

	Number of Shares		Value
Financial — 17.5%
Banks — 6.2%
Bank of America Corp. (a)		58,477	$	1,613,380
The Bank of New York Mellon Corp. (a)		5,694		287,148
BB&T Corp. (a)		4,948		230,230
Citigroup, Inc. (a)		15,284		950,970
Citizens Financial Group, Inc. (a)		3,174		103,155
Comerica, Inc. (a)		1,072		78,599
Fifth Third Bancorp (a)		4,081		102,923
First Republic Bank (a)		1,024		102,871
The Goldman Sachs Group, Inc. (a)		2,224		426,986
Huntington Bancshares, Inc. (a)		7,076		89,724
JP Morgan Chase & Co. (a)		21,339		2,160,147
KeyCorp (a)		6,407		100,910
M&T Bank Corp. (a)		893		140,219
Morgan Stanley (a)		8,333		351,653
Northern Trust Corp. (a)		1,414		127,840
The PNC Financial Services Group, Inc. (a)		2,935		360,007
Regions Financial Corp. (a)		6,872		97,239
State Street Corp. (a)		2,467		162,353
SunTrust Banks, Inc. (a)		2,903		172,003
SVB Financial Group (a) (b)		338		75,158
US Bancorp (a)		9,832		473,804
Wells Fargo & Co. (a)		26,658		1,288,115
Zions Bancorp NA (a)		1,090		49,497
				9,544,931
Diversified Financial Services — 4.2%
Affiliated Managers Group, Inc. (a)		335		35,882
Alliance Data Systems Corp. (a)		308		53,894
American Express Co. (a)		4,530		495,129
Ameriprise Financial, Inc. (a)		850		108,885
BlackRock, Inc. (a)		802		342,751
Capital One Financial Corp. (a)		3,000		245,070
Cboe Global Markets, Inc. (a)		700		66,808
The Charles Schwab Corp. (a)		7,742		331,048
CME Group, Inc. (a)		2,312		380,509
Discover Financial Services (a)		2,179		155,058
E*TRADE Financial Corp. (a)		1,701		78,978
Franklin Resources, Inc. (a)		1,987		65,849
Intercontinental Exchange, Inc. (a)		3,658		278,520
Invesco Ltd. (a)		2,841		54,860
Jefferies Financial Group, Inc. (a)		1,765		33,164
Mastercard, Inc. Class A (a)		5,885		1,385,623
Nasdaq, Inc. (a)		766		67,017
Raymond James Financial, Inc. (a)		796		64,006
Synchrony Financial (a)		4,459		142,242
T. Rowe Price Group, Inc. (a)		1,513		151,482
Visa, Inc. Class A (a)		11,384		1,778,067
The Western Union Co. (a)		2,805		51,808
				6,366,650

The accompanying notes are an integral part of the portfolio of investments.

 70

	Number of Shares		Value
Insurance — 4.0%
Aflac, Inc. (a)		4,941	$	247,050
The Allstate Corp. (a)		2,257		212,564
American International Group, Inc. (a)		5,627		242,299
Aon PLC (a)		1,554		265,268
Arthur J Gallagher & Co. (a)		1,217		95,048
Assurant, Inc. (a)		369		35,022
Berkshire Hathaway, Inc. Class B (a) (b)		12,611		2,533,424
Brighthouse Financial, Inc. (a) (b)		843		30,592
Chubb Ltd. (a)		2,984		417,999
Cincinnati Financial Corp. (a)		931		79,973
Everest Re Group Ltd. (a)		252		54,422
The Hartford Financial Services Group, Inc. (a)		2,409		119,775
Lincoln National Corp. (a)		1,201		70,499
Loews Corp. (a)		1,763		84,500
Marsh & McLennan Cos., Inc. (a)		3,238		304,048
MetLife, Inc. (a)		6,166		262,487
Principal Financial Group, Inc. (a)		1,765		88,585
The Progressive Corp. (a)		3,761		271,130
Prudential Financial, Inc. (a)		2,658		244,217
Torchmark Corp. (a)		652		53,431
The Travelers Cos., Inc. (a)		1,725		236,601
Unum Group (a)		1,296		43,844
Willis Towers Watson PLC (a)		840		147,546
				6,140,324
Real Estate — 0.1%
CBRE Group, Inc. Class A (a) (b)		2,130		105,328
Real Estate Investment Trusts (REITS) — 3.0%
Alexandria Real Estate Equities, Inc. (a)		749		106,777
American Tower Corp. (a)		2,850		561,621
Apartment Investment & Management Co. Class A (a)		812		40,835
AvalonBay Communities, Inc. (a)		917		184,069
Boston Properties, Inc. (a)		1,031		138,030
Crown Castle International Corp. (a)		2,675		342,400
Digital Realty Trust, Inc. (a)		1,307		155,533
Duke Realty Corp. (a)		2,147		65,655
Equinix, Inc. (a)		545		246,972
Equity Residential (a)		2,460		185,287
Essex Property Trust, Inc. (a)		441		127,555
Extra Space Storage, Inc. (a)		768		78,267
Federal Realty Investment Trust (a)		430		59,276
HCP, Inc. (a)		2,999		93,869
Host Hotels & Resorts, Inc. (a)		4,694		88,717
Iron Mountain, Inc. (a)		1,984		70,353
Kimco Realty Corp. (a)		2,944		54,464
The Macerich Co. (a)		765		33,163
Mid-America Apartment Communities, Inc. (a)		689		75,328
Prologis, Inc. (a)		4,147	$	298,377
Public Storage (a)		959		208,851
Realty Income Corp. (a)		1,966		144,619
Regency Centers Corp. (a)		1,165		78,626
SBA Communications Corp. (a) (b)		766		152,940
Simon Property Group, Inc. (a)		1,996		363,691
SL Green Realty Corp. (a)		526		47,298
UDR, Inc. (a)		1,870		85,010
Ventas, Inc. (a)		2,258		144,083
Vornado Realty Trust (a)		1,069		72,093
Welltower, Inc. (a)		2,566		199,122
Weyerhaeuser Co. (a)		5,026		132,385
				4,635,266

71

	Number of Shares		Value
Savings & Loans — 0.0%
People’s United Financial, Inc. (a)		2,172		35,708
				26,828,207
Industrial — 9.3%
Aerospace & Defense — 2.5%
Arconic, Inc. (a)		2,993		57,196
The Boeing Co. (a)		3,419		1,304,075
General Dynamics Corp. (a)		1,784		301,996
Harris Corp. (a)		790		126,171
L3 Technologies, Inc. (a)		500		103,185
Lockheed Martin Corp. (a)		1,593		478,155
Northrop Grumman Corp. (a)		1,114		300,334
Raytheon Co. (a)		1,868		340,125
TransDigm Group, Inc. (a) (b)		308		139,829
United Technologies Corp. (a)		5,241		675,513
				3,826,579
Building Materials — 0.3%
Fortune Brands Home & Security, Inc. (a)		853		40,611
Johnson Controls International PLC (a)		5,971		220,569
Martin Marietta Materials, Inc. (a)		390		78,460
Masco Corp. (a)		2,033		79,917
Vulcan Materials Co. (a)		860		101,824
				521,381
Electrical Components & Equipment — 0.3%
AMETEK, Inc. (a)		1,407		116,739
Emerson Electric Co. (a)		3,913		267,923
				384,662
Electronics — 1.3%
Agilent Technologies, Inc. (a)		2,025		162,770
Allegion PLC (a)		667		60,504
Amphenol Corp. Class A (a)		1,900		179,436
FLIR Systems, Inc. (a)		966		45,962
Fortive Corp. (a)		1,869		156,790
Garmin Ltd. (a)		787		67,957
Honeywell International, Inc. (a)		4,713		748,990

The accompanying notes are an integral part of the portfolio of investments.

72

	Number of Shares		Value
Keysight Technologies, Inc. (a) (b)		1,252	$	109,174
Mettler-Toledo International, Inc. (a) (b)		169		122,187
PerkinElmer, Inc. (a)		680		65,525
TE Connectivity Ltd. (a)		2,179		175,954
Waters Corp. (a) (b)		463		116,542
				2,011,791
Engineering & Construction — 0.1%
Fluor Corp. (a)		990		36,432
Jacobs Engineering Group, Inc. (a)		718		53,986
				90,418
Environmental Controls — 0.3%
Pentair PLC (a)		832		37,032
Republic Services, Inc. (a)		1,451		116,632
Waste Management, Inc. (a)		2,568		266,841
				420,505
Hand & Machine Tools — 0.1%
Snap-on, Inc. (a)		366		57,286
Stanley Black & Decker, Inc. (a)		942		128,272
				185,558
Machinery – Construction & Mining — 0.3%
Caterpillar, Inc. (a)		3,710		502,668
Machinery – Diversified — 0.7%
Cummins, Inc. (a)		949		149,819
Deere & Co. (a)		2,067		330,389
Dover Corp. (a)		993		93,144
Flowserve Corp. (a)		900		40,626
Rockwell Automation, Inc. (a)		774		135,806
Roper Technologies, Inc. (a)		663		226,726
Wabtec Corp. (a)		864		63,694
Xylem, Inc. (a)		1,129		89,236
				1,129,440
Miscellaneous – Manufacturing — 1.5%
3M Co. (a)		3,774		784,162
A.O. Smith Corp. (a)		1,016		54,173
Eaton Corp. PLC (a)		2,749		221,459
General Electric Co. (a)		56,108		560,519
Illinois Tool Works, Inc. (a)		1,996		286,486
Ingersoll-Rand PLC (a)		1,554		167,754
Parker-Hannifin Corp. (a)		838		143,818
Textron, Inc. (a)		1,607		81,411
				2,299,782
Packaging & Containers — 0.2%
Ball Corp. (a)		2,298		132,962
Packaging Corp. of America (a)		664		65,988
Sealed Air Corp. (a)		1,110		51,127
WestRock Co. (a)		1,660		63,661
				313,738
Shipbuilding — 0.0%
Huntington Ingalls Industries, Inc. (a)		278	$	57,602

73

	Number of Shares		Value
Transportation — 1.7%
C.H. Robinson Worldwide, Inc. (a)		918		79,857
CSX Corp. (a)		4,993		373,576
Expeditors International of Washington, Inc. (a)		1,154		87,589
FedEx Corp. (a)		1,540		279,371
J.B. Hunt Transport Services, Inc. (a)		597		60,470
Kansas City Southern (a)		675		78,287
Norfolk Southern Corp. (a)		1,744		325,936
Union Pacific Corp. (a)		4,687		783,666
United Parcel Service, Inc. Class B (a)		4,483		500,931
				2,569,683
				14,313,807
Technology — 16.6%
Computers — 5.3%
Accenture PLC Class A (a)		4,125		726,082
Apple, Inc. (a)		29,178		5,542,361
Cognizant Technology Solutions Corp. Class A (a)		3,799		275,238
DXC Technology Co. (a)		1,689		108,620
Fortinet, Inc. (a) (b)		899		75,489
Hewlett Packard Enterprise Co. (a)		8,999		138,855
HP, Inc. (a)		10,129		196,806
International Business Machines Corp. (a)		5,771		814,288
NetApp, Inc. (a)		1,517		105,189
Seagate Technology PLC (a)		1,765		84,526
Western Digital Corp. (a)		1,942		93,332
				8,160,786
Office & Business Equipment — 0.0%
Xerox Corp. (a)		1,505		48,130
Semiconductors — 3.9%
Advanced Micro Devices, Inc. (a) (b)		5,804		148,118
Analog Devices, Inc. (a)		2,412		253,911
Applied Materials, Inc. (a)		6,340		251,444
Broadcom, Inc. (a)		2,570		772,825
Intel Corp. (a)		29,212		1,568,684
IPG Photonics Corp. (a) (b)		208		31,570
KLA-Tencor Corp. (a)		1,033		123,351
Lam Research Corp. (a)		1,002		179,368
Maxim Integrated Products, Inc. (a)		1,842		97,939
Microchip Technology, Inc. (a)		1,532		127,095
Micron Technology, Inc. (a) (b)		7,201		297,617
NVIDIA Corp. (a)		3,933		706,209
Qorvo, Inc. (a) (b)		891		63,911
QUALCOMM, Inc. (a)		7,819		445,918
Skyworks Solutions, Inc. (a)		1,197		98,729
Texas Instruments, Inc. (a)		6,056		642,360

The accompanying notes are an integral part of the portfolio of investments.

74

	Number of Shares		Value
Xilinx, Inc. (a)		1,615	$	204,766
				6,013,815
Software — 7.4%
Activision Blizzard, Inc. (a)		4,884		222,369
Adobe, Inc. (a) (b)		3,154		840,510
Akamai Technologies, Inc. (a) (b)		1,088		78,021
ANSYS, Inc. (a) (b)		554		101,221
Autodesk, Inc. (a) (b)		1,430		222,823
Broadridge Financial Solutions, Inc. (a)		730		75,694
Cadence Design Systems, Inc. (a) (b)		1,787		113,492
Cerner Corp. (a) (b)		2,093		119,741
Citrix Systems, Inc. (a)		849		84,611
Electronic Arts, Inc. (a) (b)		1,972		200,414
Fidelity National Information Services, Inc. (a)		2,072		234,343
Fiserv, Inc. (a) (b)		2,540		224,231
Intuit, Inc. (a)		1,676		438,123
Jack Henry & Associates, Inc. (a)		537		74,503
Microsoft Corp. (a)		50,042		5,901,954
MSCI, Inc. (a)		538		106,976
Oracle Corp. (a)		16,496		886,000
Paychex, Inc. (a)		2,027		162,565
Red Hat, Inc. (a) (b)		1,156		211,201
salesforce.com, Inc. (a) (b)		4,935		781,556
Synopsys, Inc. (a) (b)		979		112,732
Take-Two Interactive Software, Inc. (a) (b)		711		67,097
				11,260,177
				25,482,908
Utilities — 3.3%
Electric — 3.1%
AES Corp. (a)		4,097		74,074
Alliant Energy Corp. (a)		1,523		71,779
Ameren Corp. (a)		1,646		121,063
American Electric Power Co., Inc. (a)		3,203		268,251
CenterPoint Energy, Inc. (a)		3,386		103,950
CMS Energy Corp. (a)		1,806		100,305
Consolidated Edison, Inc. (a)		1,975		167,500
Dominion Energy, Inc. (a)		5,263		403,461
DTE Energy Co. (a)		1,163		145,073
Duke Energy Corp. (a)		4,928		443,520
Edison International (a)		2,174		134,614
Entergy Corp. (a)		1,127		107,775
Evergy, Inc. (a)		1,752		101,704
Eversource Energy (a)		2,028		143,887
Exelon Corp. (a)		6,295		315,568
FirstEnergy Corp. (a)		3,133		130,364
NextEra Energy, Inc. (a)		3,125		604,125
NRG Energy, Inc. (a)		1,950		82,836
Pinnacle West Capital Corp. (a)		652		62,318
PPL Corp. (a)		4,641		147,305
Public Service Enterprise Group, Inc. (a)		3,258	$	193,558
Sempra Energy (a)		1,793		225,667
The Southern Co. (a)		6,663		344,344
WEC Energy Group, Inc. (a)		2,258		178,563
Xcel Energy, Inc. (a)		3,313		186,224
				4,857,828

75

	Number of Shares		Value
Gas — 0.1%
Atmos Energy Corp. (a)		777		79,977
NiSource, Inc. (a)		2,296		65,803
				145,780
Water — 0.1%
American Water Works Co., Inc. (a)		1,143		119,169
				5,122,777
TOTAL COMMON STOCK (Cost $105,748,960)				153,803,341
TOTAL EQUITIES (Cost $105,748,960)				153,803,341

	Principal Amount
BONDS & NOTES — 0.0%
CORPORATE DEBT — 0.0%
Forest Products & Paper — 0.0%
Sino Forest Corp. 5.000% 8/01/49 (c) (d)	$	359,000	–
TOTAL CORPORATE DEBT (Cost $0)			–
TOTAL BONDS & NOTES (Cost $0)			–
TOTAL PURCHASED OPTIONS (#) — 0.3% (Cost $1,177,331)			479,273
TOTAL LONG-TERM INVESTMENTS (Cost $106,926,291)			154,282,614

The accompanying notes are an integral part of the portfolio of investments.

76

	Principal Amount		Value
SHORT-TERM INVESTMENTS — 2.1%
Repurchase Agreement — 2.1%
Fixed Income Clearing Corp., Repurchase Agreement, dated 3/29/19, 1.250%, due 4/01/19 (e)	$	3,212,712	$	3,212,712
TOTAL SHORT-TERM INVESTMENTS
(Cost $3,212,712)				3,212,712
TOTAL INVESTMENTS — 102.6%
(Cost $110,139,003) (f)				157,495,326
Other Assets/(Liabilities) — (2.6)%				(3,960,976	)
NET ASSETS — 100.0%			$	153,534,350

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

(a) All or a portion of these securities are pledged/held as collateral for written options. (Note 2).

(b) Non-income producing security.

(c) Investment was valued using significant unobservable inputs.

(d) This security is fair valued in good faith in accordance with procedures approved by the Board of Trustees. At March 31, 2019, these securities amounted to a value of $0 or 0.00% of net assets.

(e) Maturity value of $3,213,046. Collateralized by U.S. Government Agency obligations with a rate of 2.375%, maturity date of 3/15/22, and an aggregate market value, including accrued interest, of $3,281,272.

(f) See Note 3 for aggregate cost for federal tax purposes.

(#) Purchased Options contracts at March 31, 2019:

	Units	Notional Amount		Expiration Date	Description	Premiums Purchased		Value		Unrealized Appreciation/ (Depreciation)
Put
	68	USD	16,490,000	5/17/19	S&P 500 Index, Strike 2,425	$	163,670	$	19,312	$	(144,358	)
	68	USD	16,660,000	5/17/19	S&P 500 Index, Strike 2,450		125,766		21,964		(103,802	)
	67	USD	16,582,500	5/17/19	S&P 500 Index, Strike 2,475		120,768		25,527		(95,241	)
	67	USD	17,085,000	5/17/19	S&P 500 Index, Strike 2,550		118,087		41,540		(76,547	)
	67	USD	16,582,500	6/21/19	S&P 500 Index, Strike 2,475		189,870		69,010		(120,860	)
	68	USD	17,000,000	6/21/19	S&P 500 Index, Strike 2,500		148,070		78,880		(69,190	)
	68	USD	17,340,000	6/21/19	S&P 500 Index, Strike 2,550		171,530		104,040		(67,490	)
	68	USD	17,510,000	6/21/19	S&P 500 Index, Strike 2,575		139,570		119,000		(20,570	)
						$	1,177,331	$	479,273	$	(698,058	)

77

Written Options contracts at March 31, 2019:

	Units	Notional Amount		Expiration Date	Description	Premiums Received			Value			Unrealized Appreciation/ (Depreciation)
Call
	59	USD	16,520,000	4/05/19	S&P 500 Index, Strike 2,800	$	(251,154	)	$	(247,210	)	$	3,944
	60	USD	16,860,000	4/12/19	S&P 500 Index, Strike 2,810		(184,890	)		(247,800	)		(62,910	)
	60	USD	16,650,000	4/18/19	S&P 500 Index, Strike 2,775		(362,250	)		(437,400	)		(75,150	)
	60	USD	16,800,000	4/18/19	S&P 500 Index, Strike 2,800		(217,861	)		(330,000	)		(112,139	)
	60	USD	16,500,000	5/17/19	S&P 500 Index, Strike 2,750		(422,850	)		(666,000	)		(243,150	)
	61	USD	16,927,500	5/17/19	S&P 500 Index, Strike 2,775		(479,735	)		(561,200	)		(81,465	)
	61	USD	17,141,000	5/17/19	S&P 500 Index, Strike 2,810		(339,174	)		(401,380	)		(62,206	)
	60	USD	17,100,000	5/17/19	S&P 500 Index, Strike 2,850		(311,850	)		(261,000	)		50,850
	60	USD	17,100,000	6/21/19	S&P 500 Index, Strike 2,850		(418,890	)		(374,400	)		44,490
						$	(2,988,654	)	$	(3,526,390	)	$	(537,736	)

Currency Legend

USD U.S. Dollar

The accompanying notes are an integral part of the portfolio of investments.

78

MML Mid Cap Growth Fund – Portfolio of Investments

March 31, 2019 (Unaudited)

	Number of Shares		Value
EQUITIES — 94.6%
COMMON STOCK — 93.9%
Basic Materials — 2.8%
Chemicals — 2.3%
Air Products & Chemicals, Inc.		30,000	$	5,728,800
RPM International, Inc.		63,000		3,656,520
Valvoline, Inc.		85,000		1,577,600
				10,962,920
Mining — 0.5%
Franco-Nevada Corp.		29,000		2,176,450
				13,139,370
Communications — 3.7%
Internet — 2.6%
IAC/InterActiveCorp (a)		34,000		7,143,740
Shopify, Inc. Class A (a) (b)		5,000		1,033,100
Symantec Corp.		156,000		3,586,440
Zillow Group, Inc. Class A (a)		3,063		104,755
Zillow Group, Inc. Class C (a) (b)		15,000		521,100
				12,389,135
Telecommunications — 1.1%
Corning, Inc.		149,000		4,931,900
				17,321,035
Consumer, Cyclical — 15.3%
Airlines — 0.8%
Alaska Air Group, Inc.		22,000		1,234,640
United Continental Holdings, Inc. (a)		30,000		2,393,400
				3,628,040
Apparel — 0.1%
Levi Strauss & Co. Class A (a)		24,011		565,459
Auto Manufacturers — 0.1%
Ferrari NV		4,000		535,200
Auto Parts & Equipment — 1.2%
Aptiv PLC		55,000		4,371,950
Visteon Corp. (a)		18,000		1,212,300
				5,584,250
Distribution & Wholesale — 0.3%
KAR Auction Services, Inc.		25,690		1,318,154
Entertainment — 0.9%
Vail Resorts, Inc.		19,000		4,128,700
Food Services — 0.3%
Aramark		52,000		1,536,600
Leisure Time — 1.5%
Norwegian Cruise Line Holdings Ltd. (a)		126,000		6,924,960
Lodging — 2.4%
Hilton Worldwide Holdings, Inc.		37,000		3,075,070
Marriott International, Inc. Class A		26,000	$	3,252,340
MGM Resorts International		194,000		4,978,040
				11,305,450

79

	Number of Shares		Value
Retail — 7.7%
Burlington Stores, Inc. (a)		30,000		4,700,400
CarMax, Inc. (a)		22,000		1,535,600
Casey’s General Stores, Inc.		28,000		3,605,560
Darden Restaurants, Inc.		13,000		1,579,110
Dollar General Corp.		48,000		5,726,400
Dollar Tree, Inc. (a)		41,000		4,306,640
Dunkin’ Brands Group, Inc.		37,000		2,778,700
The Michaels Cos., Inc. (a)		43,000		491,060
O’Reilly Automotive, Inc. (a)		7,450		2,892,835
Tapestry, Inc.		156,000		5,068,440
Tiffany & Co.		10,000		1,055,500
Ulta Salon Cosmetics & Fragrance, Inc. (a)		7,000		2,441,110
				36,181,355
				71,708,168
Consumer, Non-cyclical — 27.3%
Biotechnology — 2.2%
Alnylam Pharmaceuticals, Inc. (a)		17,000		1,588,650
Argenx SE (a)		8,000		998,720
Exact Sciences Corp. (a)		22,000		1,905,640
Incyte Corp. (a)		27,000		2,322,270
Sage Therapeutics, Inc. (a)		8,000		1,272,400
Seattle Genetics, Inc. (a)		28,000		2,050,720
				10,138,400
Commercial Services — 9.2%
CoreLogic, Inc. (a)		92,000		3,427,920
CoStar Group, Inc. (a)		7,500		3,498,150
Equifax, Inc.		15,000		1,777,500
FleetCor Technologies, Inc. (a)		19,000		4,685,210
Gartner, Inc. (a)		15,000		2,275,200
Global Payments, Inc.		19,000		2,593,880
IHS Markit Ltd. (a)		56,000		3,045,280
MarketAxess Holdings, Inc.		7,000		1,722,560
ServiceMaster Global Holdings, Inc. (a)		60,000		2,802,000
TransUnion		64,000		4,277,760
Verisk Analytics, Inc.		45,000		5,985,000
WeWork Companies, Inc., Class A (Acquired 12/09/14-11/03/17, Cost $9,747) (c) (d) (e)		8,764		449,593
Worldpay, Inc. Class A (a)		55,000		6,242,500
				42,782,553
Foods — 2.1%
Conagra Brands, Inc.		104,000		2,884,960
The Kroger Co.		67,000		1,648,200

The accompanying notes are an integral part of the portfolio of investments.

80

	Number of Shares		Value
Sprouts Farmers Market, Inc. (a)		90,000	$	1,938,600
TreeHouse Foods, Inc. (a)		52,000		3,356,600
				9,828,360
Health Care – Products — 8.9%
Bruker Corp.		140,000		5,381,600
The Cooper Cos., Inc.		33,000		9,773,610
Hologic, Inc. (a)		190,000		9,196,000
ICU Medical, Inc. (a)		8,000		1,914,640
IDEXX Laboratories, Inc. (a)		6,000		1,341,600
Teleflex, Inc.		39,000		11,784,240
West Pharmaceutical Services, Inc.		22,000		2,424,400
				41,816,090
Health Care – Services — 2.0%
Acadia Healthcare Co., Inc. (a)		59,000		1,729,290
Catalent, Inc. (a)		119,000		4,830,210
IQVIA Holdings, Inc. (a)		14,000		2,013,900
MEDNAX, Inc. (a)		33,000		896,610
				9,470,010
Household Products & Wares — 0.5%
Avery Dennison Corp.		22,000		2,486,000
Pharmaceuticals — 2.4%
Alkermes PLC (a)		89,000		3,247,610
Amneal Pharmaceuticals, Inc. (a)		109,000		1,544,530
Elanco Animal Health, Inc. (a)		111,119		3,563,587
Perrigo Co. PLC		59,000		2,841,440
				11,197,167
				127,718,580
Energy — 3.1%
Oil & Gas — 3.1%
Cabot Oil & Gas Corp.		102,000		2,662,200
Centennial Resource Development, Inc. Class A (a)		77,000		676,830
Concho Resources, Inc.		45,000		4,993,200
Continental Resources, Inc. (a)		43,000		1,925,110
Pioneer Natural Resources Co.		22,000		3,350,160
Venture Global LNG, Inc., Series B (Acquired 3/08/18, Cost $63,420) (c) (d) (e)		21		109,200
Venture Global LNG, Inc., Series C (Acquired 10/16/17-3/08/18, Cost $530,257) (c) (d) (e)		144		748,800
				14,465,500
				14,465,500
Financial — 7.0%
Banks — 0.7%
Fifth Third Bancorp		75,000		1,891,500
Webster Financial Corp.		26,000		1,317,420
				3,208,920
Diversified Financial Services — 2.3%
Cboe Global Markets, Inc.		37,000	$	3,531,280
SLM Corp.		112,000		1,109,920
TD Ameritrade Holding Corp.		122,000		6,098,780
				10,739,980

81

	Number of Shares		Value
Insurance — 3.6%
Assurant, Inc.		26,000		2,467,660
Axis Capital Holdings Ltd.		26,000		1,424,280
Fidelity National Financial, Inc.		134,000		4,897,700
The Progressive Corp.		22,000		1,585,980
Willis Towers Watson PLC		37,000		6,499,050
				16,874,670
Private Equity — 0.4%
KKR & Co., Inc. Class A		96,000		2,255,040
				33,078,610
Industrial — 21.2%
Aerospace & Defense — 2.1%
Harris Corp.		52,000		8,304,920
L3 Technologies, Inc.		8,000		1,650,960
				9,955,880
Building Materials — 0.5%
Martin Marietta Materials, Inc.		11,000		2,212,980
Electronics — 7.0%
Agilent Technologies, Inc.		104,000		8,359,520
Allegion PLC		37,000		3,356,270
Coherent, Inc. (a)		9,000		1,275,480
Fortive Corp.		63,000		5,285,070
Keysight Technologies, Inc. (a)		86,000		7,499,200
National Instruments Corp.		34,000		1,508,240
Sensata Technologies Holding PLC (a)		126,000		5,672,520
				32,956,300
Engineering & Construction — 0.3%
frontdoor, Inc. (a)		37,000		1,273,540
Environmental Controls — 0.6%
Waste Connections, Inc.		30,000		2,657,700
Hand & Machine Tools — 0.6%
Colfax Corp. (a)		93,000		2,760,240
Machinery – Construction & Mining — 0.5%
BWX Technologies, Inc.		47,000		2,330,260
Machinery – Diversified — 4.5%
Cognex Corp.		8,000		406,880
Gardner Denver Holdings, Inc. (a)		130,000		3,615,300
IDEX Corp.		41,000		6,221,340
Roper Technologies, Inc.		19,000		6,497,430
Xylem, Inc.		56,000		4,426,240
				21,167,190

The accompanying notes are an integral part of the portfolio of investments.

82

	Number of Shares		Value
Miscellaneous – Manufacturing — 1.7%
Textron, Inc.		153,000	$	7,750,980
Packaging & Containers — 2.4%
Ball Corp.		137,000		7,926,820
Sealed Air Corp.		74,000		3,408,440
				11,335,260
Transportation — 1.0%
J.B. Hunt Transport Services, Inc.		30,000		3,038,700
Kansas City Southern		14,778		1,713,952
				4,752,652
				99,152,982
Technology — 12.2%
Semiconductors — 5.1%
Entegris, Inc.		34,000		1,213,460
Marvell Technology Group Ltd.		171,000		3,401,190
Maxim Integrated Products, Inc.		56,000		2,977,520
Microchip Technology, Inc.		111,000		9,208,560
Skyworks Solutions, Inc.		37,000		3,051,760
Xilinx, Inc.		33,000		4,184,070
				24,036,560
Software — 7.1%
Atlassian Corp. PLC Class A (a)		30,000		3,371,700
Black Knight, Inc. (a)		45,000		2,452,500
Ceridian HCM Holding, Inc. (a)		25,994		1,333,492
DocuSign, Inc. (a)		22,000		1,140,480
Fidelity National Information Services, Inc.		29,000		3,279,900
Fiserv, Inc. (a)		59,000		5,208,520
Guidewire Software, Inc. (a)		2,000		194,320
Red Hat, Inc. (a)		4,000		730,800
Splunk, Inc. (a)		19,000		2,367,400
SS&C Technologies Holdings, Inc		33,000		2,101,770
Tableau Software, Inc. Class A (a)		25,000		3,182,000
Veeva Systems, Inc. Class A (a)		5,000		634,300
Workday, Inc. Class A (a)		36,000		6,942,600
				32,939,782
				56,976,342
Utilities — 1.3%
Electric — 0.9%
Sempra Energy		34,000		4,279,240
Gas — 0.4%
Atmos Energy Corp.		16,000		1,646,880
				5,926,120
TOTAL COMMON STOCK (Cost $314,181,523)				439,486,707
PREFERRED STOCK — 0.7%
Communications — 0.2%
Internet — 0.2%
Roofoods Ltd., Series F (Acquired 9/12/17, Cost $677,088) (c) (d) (e)		1,915	$	976,516
Consumer, Non-cyclical — 0.4%
Commercial Services — 0.4%
WeWork Companies, Inc., Series D-1 (Acquired 12/09/14, Cost $369,606) (c) (d) (e)		22,197		1,138,706
WeWork Companies, Inc., Series D-2 (Acquired 12/09/14, Cost $290,396) (c) (d) (e)		17,440		894,672
				2,033,378

83

	Number of Shares		Value
Technology — 0.1%
Software — 0.1%
Slack Technologies, Inc., Series H (Acquired 8/17/18, Cost $317,633) (c) (d) (e)		26,680		317,633
TOTAL PREFERRED STOCK
(Cost $1,654,723)				3,327,527
TOTAL EQUITIES
(Cost $315,836,246)				442,814,234
MUTUAL FUNDS — 0.3%
Diversified Financial Services — 0.3%
State Street Navigator Securities Lending Prime Portfolio (f)		1,580,003		1,580,003
TOTAL MUTUAL FUNDS
(Cost $1,580,003)				1,580,003
TOTAL LONG-TERM INVESTMENTS
(Cost $317,416,249)				444,394,237
SHORT-TERM INVESTMENTS — 5.5%
Mutual Fund — 1.7%
T. Rowe Price Treasury Reserve Fund		8,032,903		8,032,903

The accompanying notes are an integral part of the portfolio of investments.

84

	Principal Amount		Value
Repurchase Agreement — 3.8%
Fixed Income Clearing Corp., Repurchase Agreement, dated 3/29/19, 1.250%, due 4/01/19 (g)	$	17,810,906	$	17,810,906
TOTAL SHORT-TERM INVESTMENTS
(Cost $25,843,809)				25,843,809
TOTAL INVESTMENTS — 100.4%
(Cost $343,260,058) (h)				470,238,046
Other Assets/(Liabilities) — (0.4)%				(2,054,101	)
NET ASSETS — 100.0%			$	468,183,945

Notes to Portfolio of Investments  

Percentages are stated as a percent of net assets.

(a) Non-income producing security.

(b) Denotes all or a portion of security on loan. The total value of securities on loan as of March 31, 2019, was $1,546,857 or 0.33% of net assets. Total securities on loan may not correspond with the amounts identified in the Portfolio of Investments because pending sales may be in the process of recall from the brokers. (Note 2).

(c) Investment was valued using significant unobservable inputs.

(d) This security is fair valued in good faith in accordance with procedures approved by the Board of Trustees. At March 31, 2019, these securities amounted to a value of $4,635,120 or 0.99% of net assets.

(e) Restricted security. Certain securities are restricted as to resale. At March 31, 2019, these securities amounted to a value of $4,635,120 or 0.99% of net assets. The Fund generally bears the costs, if any, associated with the disposition of restricted securities.

(f) Represents investment of security lending collateral. (Note 2).

(g) Maturity value of $17,812,762. Collateralized by U.S. Government Agency obligations with a rate of 2.375%, maturity date of 3/15/22, and an aggregate market value, including accrued interest, of $18,167,776.

(h) See Note 3 for aggregate cost for federal tax purposes.

The accompanying notes are an integral part of the portfolio of investments.

85

MML Mid Cap Value Fund – Portfolio of Investments

March 31, 2019 (Unaudited)

	Number of Shares		Value
EQUITIES — 95.3%
COMMON STOCK — 95.3%
Consumer, Cyclical — 11.7%
Airlines — 1.5%
Southwest Airlines Co.		121,231	$	6,293,101
Auto Manufacturers — 1.6%
Honda Motor Co. Ltd. Sponsored ADR		145,659		3,957,555
PACCAR, Inc.		41,550		2,831,217
				6,788,772
Auto Parts & Equipment — 1.2%
Aptiv PLC		13,145		1,044,896
BorgWarner, Inc.		100,483		3,859,552
				4,904,448
Food Services — 0.9%
Sodexo SA		35,280		3,885,820
Home Builders — 1.8%
PulteGroup, Inc.		154,327		4,314,983
Thor Industries, Inc.		53,023		3,307,045
				7,622,028
Leisure Time — 0.8%
Carnival Corp.		67,632		3,430,295
Retail — 3.9%
Advance Auto Parts, Inc.		26,610		4,537,803
Genuine Parts Co.		27,030		3,028,171
MSC Industrial Direct Co., Inc. Class A		70,555		5,835,604
Target Corp.		39,276		3,152,292
				16,553,870
				49,478,334
Consumer, Non-cyclical — 15.8%
Beverages — 0.5%
Molson Coors Brewing Co. Class B		34,757		2,073,255
Foods — 5.7%
Conagra Brands, Inc.		155,938		4,325,720
The J.M. Smucker Co.		20,109		2,342,698
Kellogg Co.		39,758		2,281,314
Mondelez International, Inc. Class A		110,266		5,504,479
Orkla ASA		741,222		5,690,051
Sysco Corp.		61,808		4,126,302
				24,270,564
Health Care – Products — 4.8%
Henry Schein, Inc. (a)		51,592		3,101,195
Hologic, Inc. (a)		39,624		1,917,802
Siemens Healthineers AG (b)		67,271		2,803,806
Zimmer Biomet Holdings, Inc.		98,344		12,558,529
				20,381,332
Health Care – Services — 1.4%
Quest Diagnostics, Inc.		63,419	$	5,702,637
Household Products & Wares — 1.0%
Kimberly-Clark Corp.		34,686		4,297,595

 86

	Number of Shares		Value
Pharmaceuticals — 2.4%
Cardinal Health, Inc.		118,387		5,700,334
McKesson Corp.		36,698		4,295,868
				9,996,202
				66,721,585
Energy — 7.3%
Oil & Gas — 4.6%
Anadarko Petroleum Corp.		64,447		2,931,050
Cimarex Energy Co.		43,759		3,058,754
Devon Energy Corp.		136,361		4,303,553
EQT Corp.		152,654		3,166,044
Imperial Oil Ltd.		68,115		1,859,419
Noble Energy, Inc.		169,687		4,196,360
				19,515,180
Oil & Gas Services — 2.1%
Baker Hughes a GE Co.		170,602		4,729,087
Halliburton Co.		71,933		2,107,637
National Oilwell Varco, Inc.		70,005		1,864,933
				8,701,657
Pipelines — 0.6%
Equitrans Midstream Corp. (a)		122,123		2,659,839
				30,876,676
Financial — 27.4%
Banks — 13.4%
BB&T Corp.		187,885		8,742,289
Comerica, Inc.		47,924		3,513,788
Commerce Bancshares, Inc.		72,634		4,217,130
First Hawaiian, Inc.		207,540		5,406,417
M&T Bank Corp.		31,694		4,976,592
Northern Trust Corp.		140,523		12,704,684
Prosperity Bancshares, Inc.		34,963		2,414,545
State Street Corp.		58,941		3,878,907
SunTrust Banks, Inc.		32,837		1,945,592
UMB Financial Corp.		75,741		4,850,454
Westamerica Bancorp.		65,102		4,023,303
				56,673,701
Diversified Financial Services — 2.9%
Ameriprise Financial, Inc.		50,057		6,412,302
Invesco Ltd.		292,504		5,648,252
				12,060,554
Insurance — 5.2%
Aflac, Inc.		53,970		2,698,500
Arthur J Gallagher & Co.		16,402		1,280,996
Brown & Brown, Inc.		81,472		2,404,239

The accompanying notes are an integral part of the portfolio of investments.

 87

	Number of Shares		Value
Chubb Ltd.		46,066	$	6,452,925
ProAssurance Corp.		54,879		1,899,362
Reinsurance Group of America, Inc.		29,289		4,158,452
Torchmark Corp.		17,865		1,464,037
The Travelers Cos., Inc.		11,097		1,522,065
				21,880,576
Real Estate Investment Trusts (REITS) — 4.9%
American Tower Corp.		9,636		1,898,870
Empire State Realty Trust, Inc. Class A		128,761		2,034,424
MGM Growth Properties LLC Class A		146,675		4,730,269
Piedmont Office Realty Trust, Inc. Class A		186,781		3,894,384
Weyerhaeuser Co.		317,524		8,363,582
				20,921,529
Savings & Loans — 1.0%
Capitol Federal Financial, Inc.		318,423		4,250,947
				115,787,307
Industrial — 18.1%
Building Materials — 2.0%
Johnson Controls International PLC		194,226		7,174,708
Masco Corp.		25,909		1,018,483
				8,193,191
Electrical Components & Equipment — 4.7%
Emerson Electric Co.		77,448		5,302,865
Hubbell, Inc.		93,365		11,015,203
Schneider Electric SE		43,967		3,457,736
				19,775,804
Electronics — 1.9%
nVent Electric PLC		139,129		3,753,700
TE Connectivity Ltd.		52,768		4,261,016
				8,014,716
Environmental Controls — 0.5%
Republic Services, Inc.		25,763		2,070,830
Machinery – Diversified — 0.8%
Atlas Copco AB Class B		136,930		3,392,256
Machinery – Diversified — 1.3%
Cummins, Inc.		35,084		5,538,711
Miscellaneous – Manufacturing — 2.4%
Eaton Corp. PLC		53,205		4,286,195
IMI PLC		344,073		4,308,924
Textron, Inc.		32,722		1,657,696
				10,252,815
Packaging & Containers — 3.5%
Graphic Packaging Holding Co.		467,847		5,908,908
Packaging Corp. of America		28,401		2,822,491
Sonoco Products Co.		60,690		3,734,256
WestRock Co.		61,010	$	2,339,733
				14,805,388
Transportation — 1.0%
Heartland Express, Inc.		227,358		4,383,462
				76,427,173

 88

	Number of Shares		Value
Technology — 5.4%
Computers — 0.7%
HP, Inc.		152,224		2,957,712
Semiconductors — 3.7%
Applied Materials, Inc.		120,752		4,789,024
Maxim Integrated Products, Inc.		97,408		5,179,183
Microchip Technology, Inc.		40,936		3,396,051
Teradyne, Inc.		57,001		2,270,920
				15,635,178
Software — 1.0%
Cerner Corp. (a)		72,855		4,168,035
				22,760,925
Utilities — 9.6%
Electric — 8.0%
Ameren Corp.		65,498		4,817,378
Edison International		47,813		2,960,581
Eversource Energy		41,142		2,919,025
NorthWestern Corp.		85,433		6,015,338
Pinnacle West Capital Corp.		58,668		5,607,487
WEC Energy Group, Inc.		36,491		2,885,708
Xcel Energy, Inc.		151,808		8,533,128
				33,738,645
Gas — 1.6%
Atmos Energy Corp.		31,629		3,255,573
Spire, Inc.		41,949		3,451,983
				6,707,556
				40,446,201
TOTAL COMMON STOCK
(Cost $394,616,065)				402,498,201
TOTAL EQUITIES
(Cost $394,616,065)				402,498,201
MUTUAL FUNDS — 3.0%
Diversified Financial Services — 3.0%
iShares Russell Mid-Cap Value ETF		146,912		12,760,776
TOTAL MUTUAL FUNDS
(Cost $12,542,111)				12,760,776
TOTAL LONG-TERM INVESTMENTS
(Cost $407,158,176)				415,258,977

The accompanying notes are an integral part of the portfolio of investments. 

 89

	Principal Amount		Value
SHORT-TERM INVESTMENTS — 1.5%
Repurchase Agreement — 1.5%
Fixed Income Clearing Corp., Repurchase Agreement, dated 3/29/19, 1.250%, due 4/01/19 (c)	$	6,240,156	$	6,240,156
TOTAL SHORT-TERM INVESTMENTS
(Cost $6,240,156)				6,240,156
TOTAL INVESTMENTS — 99.8%
(Cost $413,398,332) (d)				421,499,133
Other Assets/(Liabilities) — 0.2%				888,821
NET ASSETS — 100.0%			$	422,387,954

Abbreviation Legend

ADR American Depositary Receipt

ETF Exchange-Traded Fund

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

(a) Non-income producing security.

(b) Securities exempt from registration under rule 144A of the Securities Act of 1933. These securities may be resold in transactions exempt from registration, normally to qualified institutional buyers. At March 31, 2019, these securities amounted to a value of $2,803,806 or 0.66% of net assets.

(c) Maturity value of $6,240,806. Collateralized by U.S. Government Agency obligations with a rate of 2.375%, maturity date of 3/15/22, and an aggregate market value, including accrued interest, of $6,366,271.

(d) See Note 3 for aggregate cost for federal tax purposes.

Forward contracts at March 31, 2019:

		Counterparty	Settlement Date	In Exchange for		Unrealized Appreciation/ (Depreciation)
Contracts to Buy
EUR	285,675	Credit Suisse International	6/28/19	$	322,929	$	(113	)
NOK	1,297,880	Goldman Sachs & Co.	6/28/19		150,795		187
GBP	80,427	JP Morgan Chase Bank N.A.	6/28/19		106,844		(1,638	)
CAD	77,004	Morgan Stanley & Co. LLC	6/28/19		57,646		102
				$	638,214	$	(1,462	)
Contracts to Deliver
JPY	267,867,303	Bank of America N.A.	6/28/19	$	2,450,719	$	17,320
EUR	7,864,304	Credit Suisse International	6/28/19		8,972,541		85,774
NOK	42,351,201	Goldman Sachs & Co.	6/28/19		4,981,967		55,245
SEK	26,414,824	Goldman Sachs & Co.	6/28/19		2,880,633		20,921
					7,862,600		76,166
GBP	2,825,183	JP Morgan Chase Bank N.A.	6/28/19		3,744,919		49,308
CAD	2,152,638	Morgan Stanley & Co. LLC	6/28/19		1,607,646		(6,683	)
				$	24,638,425	$	221,885

Currency Legend

CAD Canadian Dollar

EUR Euro

GBP British Pound

JPY Japanese Yen

NOK Norwegian Krone

SEK Swedish Krona

The accompanying notes are an integral part of the portfolio of investments.

 90

MML Moderate Allocation Fund – Portfolio of Investments

March 31, 2019 (Unaudited)

	Number of Shares		Value
MUTUAL FUNDS — 100.1%
Equity Funds — 59.8%
MML Blue Chip Growth Fund, Initial Class (a)		4,448,716	$	75,450,231
MML Equity Income Fund, Initial Class (a)		7,488,293		83,419,579
MML Equity Index Fund, Class III (a)		2,108,419		67,195,323
MML Focused Equity Fund, Class II (a)		4,267,850		25,735,133
MML Foreign Fund, Initial Class (a)		7,244,161		72,224,289
MML Fundamental Growth Fund, Class II (a)		3,926,516		42,877,555
MML Fundamental Value Fund, Class II (a)		5,574,242		75,140,776
MML Global Fund, Class I (a)		6,888,299		81,075,280
MML Income & Growth Fund, Initial Class (a)		9,055,864		85,849,593
MML International Equity Fund, Class II (a)		7,469,242		72,750,420
MML Large Cap Growth Fund, Initial Class (a)		1,987,466		22,339,121
MML Mid Cap Growth Fund, Initial Class (a)		4,589,570		74,305,138
MML Mid Cap Value Fund, Initial Class (a)		7,015,930		74,298,702
MML Small Cap Growth Equity Fund, Initial Class (a)		1,034,015		15,914,675
MML Small Company Value Fund, Class II (a)		1,993,110		31,112,453
MML Small/Mid Cap Value Fund, Initial Class (a)		2,113,791		25,090,696
MML Strategic Emerging Markets Fund, Class II (a)		5,281,241		60,206,146
Oppenheimer Discovery Mid Cap Growth Fund/VA, Non-Service Shares (a)		305,209		24,984,442
Oppenheimer Global Fund/VA, Non-Service Shares (a)		923,431		40,991,103
Oppenheimer Global Multi-Alternatives Fund/VA, Non-Service Shares (a)		16,391,770		159,819,756
Oppenheimer International Growth Fund/VA, Non-Service Shares (a)		17,556,354		39,677,360
Oppenheimer Main Street Fund/VA, Non-Service Shares (a)		943,133		28,963,607
				1,279,421,378
Fixed Income Funds — 40.3%
MML Dynamic Bond Fund, Class II (a)		21,569,070	$	214,180,860
MML High Yield Fund, Class II (a)		4,491,448		43,387,385
MML Inflation-Protected and Income Fund, Initial Class (a)		6,719,316		67,461,937
MML Managed Bond Fund, Initial Class (a)		22,309,896		275,768,678
MML Short-Duration Bond Fund, Class II (a)		8,316,576		81,086,620
MML Total Return Bond Fund, Class II (a)		17,195,202		180,377,664
				862,263,144
TOTAL MUTUAL FUNDS
(Cost $2,164,205,120)				2,141,684,522
TOTAL LONG-TERM INVESTMENTS
(Cost $2,164,205,120)				2,141,684,522
TOTAL INVESTMENTS — 100.1%
(Cost $2,164,205,120)  (b)				2,141,684,522
Other Assets/(Liabilities) — (0.1)%				(1,534,897	)
NET ASSETS — 100.0%			$	2,140,149,625

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

(a) Affiliated issuer. See Note 4 for a summary of transactions in the investments of affiliated issuers.

(b) See Note 3 for aggregate cost for federal tax purposes.

The accompanying notes are an integral part of the portfolio of investments.

 91

MML Small Cap Growth Equity Fund – Portfolio of Investments

March 31, 2019 (Unaudited)

	Number of Shares		Value
EQUITIES — 97.1%
COMMON STOCK — 96.9%
Basic Materials — 3.6%
Chemicals — 2.3%
Cabot Corp.		17,072	$	710,707
Ferro Corp. (a)		52,962		1,002,571
Ingevity Corp. (a)		7,776		821,223
Methanex Corp.		12,445		707,623
Minerals Technologies, Inc.		13,341		784,317
Orion Engineered Carbons SA		36,956		701,795
				4,728,236
Iron & Steel — 1.3%
Carpenter Technology Corp.		56,557		2,593,138
				7,321,374
Communications — 6.1%
Advertising — 0.7%
The Trade Desk, Inc. Class A (a)		6,993		1,384,264
Internet — 3.9%
Boingo Wireless, Inc. (a)		30,621		712,857
DraftKings, Inc. (Acquired 8/22/17, Cost $300,412) (a) (b) (c) (d)		78,904		224,087
Etsy, Inc. (a)		10,627		714,347
Mimecast Ltd. (a)		38,644		1,829,793
Roku, Inc. (a)		5,515		355,773
TrueCar, Inc. (a)		64,148		425,943
Veracode, Inc.(Escrow Shares) (Acquired 8/26/17, Cost $20,131) (a) (b) (c) (d)		10,688		5,814
Wayfair, Inc. Class A (a)		5,354		794,801
Wix.com Ltd. (a)		7,820		944,891
Zendesk, Inc. (a)		21,010		1,785,850
				7,794,156
Media — 0.7%
The New York Times Co. Class A		45,030		1,479,236
Telecommunications — 0.8%
Acacia Communications, Inc. (a)		14,412		826,528
Ciena Corp. (a)		19,681		734,889
				1,561,417
				12,219,073
Consumer, Cyclical — 14.3%
Airlines — 0.4%
Spirit Airlines, Inc. (a)		15,017		793,799
Apparel — 2.2%
Carter’s, Inc.		16,322		1,645,095
Deckers Outdoor Corp. (a)		5,077		746,268
Skechers U.S.A., Inc. Class A (a)		24,361		818,773
Under Armour, Inc. Class A (a)		4,652		98,343
Under Armour, Inc. Class C (a)		57,738	$	1,089,516
				4,397,995
Auto Parts & Equipment — 0.3%
Tenneco, Inc. Class A		24,325		539,042
Entertainment — 1.4%
Cinemark Holdings, Inc.		27,538		1,101,245
Marriott Vacations Worldwide Corp.		19,279		1,802,586
				2,903,831

 92

	Number of Shares		Value
Home Builders — 2.5%
Century Communities, Inc. (a)		38,888		932,145
LCI Industries		8,935		686,387
Skyline Champion Corp.		86,603		1,645,457
TRI Pointe Group, Inc. (a)		75,184		950,326
Winnebago Industries, Inc.		23,733		739,283
				4,953,598
Home Furnishing — 0.4%
Sleep Number Corp. (a)		18,953		890,791
Leisure Time — 2.0%
Acushnet Holdings Corp.		45,824		1,060,367
Lindblad Expeditions Holdings, Inc. (a)		73,386		1,119,136
Planet Fitness, Inc. Class A (a)		26,983		1,854,272
				4,033,775
Lodging — 0.6%
Boyd Gaming Corp.		40,952		1,120,447
Retail — 4.5%
BMC Stock Holdings, Inc. (a)		56,591		999,963
The Cheesecake Factory, Inc. (e)		21,403		1,047,035
Chico’s FAS, Inc.		50,916		217,411
The Children’s Place, Inc.		9,320		906,650
FirstCash, Inc.		14,275		1,234,787
Five Below, Inc. (a)		8,436		1,048,173
Floor & Decor Holdings, Inc. Class A (a)		22,526		928,522
La-Z-Boy, Inc.		34,187		1,127,829
Nu Skin Enterprises, Inc. Class A		15,661		749,535
Shake Shack, Inc. Class A (a)		15,017		888,256
				9,148,161
				28,781,439
Consumer, Non-cyclical — 25.9%
Beverages — 0.6%
MGP Ingredients, Inc. (e)		16,145		1,245,587
Biotechnology — 2.9%
Abeona Therapeutics, Inc. (a) (e)		34,463		253,648
Amicus Therapeutics, Inc. (a)		48,675		661,980
Arena Pharmaceuticals, Inc. (a)		17,065		765,024
Blueprint Medicines Corp. (a)		6,597		528,090

The accompanying notes are an integral part of the portfolio of investments.

 93

	Number of Shares		Value
CRISPR Therapeutics AG (a) (e)		16,056	$	573,520
CytomX Therapeutics, Inc. (a)		10,929		117,487
Exact Sciences Corp. (a)		14,194		1,229,484
Karyopharm Therapeutics, Inc. (a)		31,575		184,398
Sage Therapeutics, Inc. (a)		3,400		540,770
Sangamo Therapeutics, Inc. (a)		31,291		298,516
Ultragenyx Pharmaceutical, Inc. (a)		8,600		596,496
				5,749,413
Commercial Services — 7.1%
2U, Inc. (a)		30,052		2,129,184
The Brink’s Co.		23,133		1,744,459
Cardtronics PLC Class A (a)		32,610		1,160,264
CoStar Group, Inc. (a)		2,222		1,036,385
Grand Canyon Education, Inc. (a)		9,900		1,133,649
Green Dot Corp. Class A (a)		12,497		757,943
HMS Holdings Corp. (a)		65,199		1,930,542
Liveramp Holdings, Inc. (a)		14,394		785,481
TriNet Group, Inc. (a)		42,940		2,565,236
TrueBlue, Inc. (a)		41,837		989,027
				14,232,170
Foods — 1.6%
Performance Food Group Co. (a)		68,961		2,733,614
Sanderson Farms, Inc.		3,900		514,176
				3,247,790
Health Care – Products — 7.4%
Avanos Medical, Inc. (a)		16,665		711,262
CareDx, Inc. (a)		16,041		505,612
Globus Medical, Inc. Class A (a)		47,145		2,329,434
Haemonetics Corp. (a)		22,543		1,972,062
Hill-Rom Holdings, Inc.		14,351		1,519,197
Insulet Corp. (a)		40,762		3,876,059
Merit Medical Systems, Inc. (a)		27,557		1,703,849
Penumbra, Inc. (a)		8,382		1,232,238
Tandem Diabetes Care, Inc. (a)		18,387		1,167,575
				15,017,288
Health Care – Services — 2.8%
Amedisys, Inc. (a)		13,159		1,621,978
Invitae Corp. (a)		29,806		698,057
LHC Group, Inc. (a)		10,112		1,121,016
Molina Healthcare, Inc. (a)		5,697		808,746
Syneos Health, Inc. (a)		17,830		922,881
Teladoc Health, Inc. (a)		9,091		505,460
				5,678,138

 94

	Number of Shares		Value
Pharmaceuticals — 3.5%
Aerie Pharmaceuticals, Inc. (a)		12,292		583,870
Apellis Pharmaceuticals, Inc. (a)		15,400		300,300
Ascendis Pharma A/S (a)		4,083		480,569
G1 Therapeutics, Inc. (a)		41,076		681,861
Galapagos NV Sponsored ADR (a)		7,345		865,094
Heron Therapeutics, Inc. (a)		22,039		538,633
MyoKardia, Inc. (a)		12,755	$	663,132
Portola Pharmaceuticals, Inc. (a) (e)		12,284		426,255
PRA Health Sciences, Inc. (a)		8,378		924,010
Ra Pharmaceuticals, Inc. (a)		15,089		337,994
Revance Therapeutics, Inc. (a)		24,470		385,647
Rhythm Pharmaceuticals, Inc. (a)		19,408		531,973
UroGen Pharma Ltd. (a)		7,904		291,974
				7,011,312
				52,181,698
Energy — 3.2%
Energy – Alternate Sources — 1.2%
First Solar, Inc. (a)		23,961		1,266,099
Pattern Energy Group, Inc. Class A		53,769		1,182,918
				2,449,017
Oil & Gas — 2.0%
Callon Petroleum Co. (a)		97,950		739,523
Centennial Resource Development, Inc. Class A (a)		40,368		354,835
Delek US Holdings, Inc.		29,182		1,062,808
Viper Energy Partners LP		53,976		1,789,844
				3,947,010
				6,396,027
Financial — 18.0%
Banks — 5.1%
Ameris Bancorp		25,154		864,040
BancorpSouth Bank		66,413		1,874,175
CenterState Bank Corp.		25,248		601,155
First Interstate BancSystem, Inc. Class A		23,147		921,713
National Bank Holdings Corp. Class A		27,980		930,615
Seacoast Banking Corp. of Florida (a)		40,628		1,070,548
South State Corp.		12,720		869,285
Texas Capital Bancshares, Inc. (a)		25,038		1,366,824
Union Bankshares Corp.		54,556		1,763,795
				10,262,150
Diversified Financial Services — 2.2%
Air Lease Corp.		26,768		919,481
Hannon Armstrong Sustainable Infrastructure Capital, Inc.		95,526		2,449,287
PRA Group, Inc. (a)		37,776		1,012,774
				4,381,542
Insurance — 2.9%
Assured Guaranty Ltd.		31,502		1,399,634
James River Group Holdings Ltd.		24,691		989,615
Kemper Corp.		13,377		1,018,525
MGIC Investment Corp. (a)		83,503		1,101,405
NMI Holdings, Inc. Class A (a)		55,145		1,426,601
				5,935,780

The accompanying notes are an integral part of the portfolio of investments.

 95

	Number of Shares		Value
Private Equity — 1.1%
Kennedy-Wilson Holdings, Inc.		101,726	$	2,175,919
Real Estate — 0.4%
McGrath RentCorp		16,798		950,263
Real Estate Investment Trusts (REITS) — 5.3%
Agree Realty Corp.		20,929		1,451,217
Life Storage, Inc.		9,075		882,725
MFA Financial, Inc.		105,609		767,778
NexPoint Residential Trust, Inc.		47,379		1,816,511
PotlatchDeltic Corp.		34,437		1,301,374
PS Business Parks, Inc.		5,212		817,398
Redwood Trust, Inc.		60,034		969,549
Rexford Industrial Realty, Inc.		22,250		796,773
Xenia Hotels & Resorts, Inc.		83,896		1,838,161
				10,641,486
Savings & Loans — 1.0%
Sterling Bancorp		109,962		2,048,592
				36,395,732
Industrial — 10.7%
Aerospace & Defense — 0.5%
Aerojet Rocketdyne Holdings, Inc. (a)		26,578		944,316
Electrical Components & Equipment — 1.4%
EnerSys		36,294		2,364,917
Universal Display Corp.		3,303		504,864
				2,869,781
Electronics — 0.4%
Watts Water Technologies, Inc. Class A		10,306		832,931
Engineering & Construction — 1.2%
Argan, Inc.		46,853		2,340,307
Environmental Controls — 0.4%
Clean Harbors, Inc. (a)		12,074		863,653
Machinery – Diversified — 1.0%
Chart Industries, Inc. (a)		15,038		1,361,240
SPX FLOW, Inc. (a)		22,065		703,873
				2,065,113
Metal Fabricate & Hardware — 1.2%
Advanced Drainage Systems, Inc.		42,261		1,089,066
Rexnord Corp. (a)		57,375		1,442,408
				2,531,474
Miscellaneous – Manufacturing — 3.0%
Actuant Corp. Class A		86,004		2,095,917
Ambarella, Inc. (a) (e)		13,398		578,794
Axon Enterprise, Inc. (a)		9,168		498,831
ITT, Inc.		31,115		1,804,670
John Bean Technologies Corp.		10,883		1,000,039
				5,978,251
Packaging & Containers — 0.5%
Graphic Packaging Holding Co.		80,515	$	1,016,905
Transportation — 0.6%
Kirby Corp. (a)		15,226		1,143,625
Trucking & Leasing — 0.5%
GATX Corp.		13,028		994,948
				21,581,304

 96

	Number of Shares		Value
Technology — 14.5%
Computers — 2.2%
EPAM Systems, Inc. (a)		7,248		1,225,854
ForeScout Technologies, Inc. (a)		23,700		993,267
Globant SA (a)		13,603		971,254
Rapid7, Inc. (a)		12,748		645,177
Science Applications International Corp.		7,857		604,596
				4,440,148
Office & Business Equipment — 0.7%
Zebra Technologies Corp. Class A (a)		6,495		1,360,897
Semiconductors — 3.4%
Cohu, Inc.		54,106		798,064
Entegris, Inc.		74,754		2,667,970
Lattice Semiconductor Corp. (a)		76,901		917,429
MKS Instruments, Inc.		5,800		539,690
Tower Semiconductor Ltd. (a)		116,534		1,929,803
				6,852,956
Software — 8.2%
Alteryx, Inc. Class A (a)		6,011		504,143
Bandwidth, Inc. Class A (a)		19,300		1,292,328
Castlight Health, Inc. Class B (a)		110,900		415,875
Cloudera, Inc. (a)		72,013		787,822
Everbridge, Inc. (a)		15,589		1,169,331
Fair Isaac Corp. (a)		3,867		1,050,393
Five9, Inc. (a)		42,876		2,265,139
Guidewire Software, Inc. (a)		9,011		875,509
HubSpot, Inc. (a)		12,045		2,001,999
Omnicell, Inc. (a)		35,587		2,876,853
Pivotal Software, Inc. Class A (a)		54,580		1,137,993
SailPoint Technologies Holding, Inc. (a)		31,480		904,106
SVMK, Inc. (a)		17,800		324,138
Veeva Systems, Inc. Class A (a)		7,785		987,605
				16,593,234
				29,247,235
Utilities — 0.6%
Electric — 0.6%
Black Hills Corp.		17,293		1,280,892
TOTAL COMMON STOCK
(Cost $168,412,897)				195,404,774

The accompanying notes are an integral part of the portfolio of investments.

 97

	Number of Shares		Value
PREFERRED STOCK — 0.2%
Communications — 0.1%
Internet — 0.1%
The Honest Company, Inc., Series D (Acquired 8/03/15, Cost $184,255) (a) (b) (c) (d)		4,027	$	150,731
Technology — 0.1%
Software — 0.1%
MarkLogic Corp., Series F (Acquired 4/27/15, Cost $266,732) (a) (b) (c) (d)		22,966		232,186
TOTAL PREFERRED STOCK
(Cost $450,987)				382,917
TOTAL EQUITIES
(Cost $168,863,884)				195,787,691
MUTUAL FUNDS — 2.6%
Diversified Financial Services — 2.6%
iShares Russell 2000 Index Fund		5,327		815,510
State Street Navigator Securities Lending Prime Portfolio (f)		4,508,135		4,508,135
				5,323,645
TOTAL MUTUAL FUNDS
(Cost $5,340,458)				5,323,645
TOTAL LONG-TERM INVESTMENTS
(Cost $174,204,342)				201,111,336

		Principal Amount
SHORT-TERM INVESTMENTS — 3.0%
Repurchase Agreement — 3.0%
Fixed Income Clearing Corp., Repurchase Agreement, dated 3/29/19, 1.250%, due 4/01/19 (g)	$	6,014,754		6,014,754
TOTAL SHORT-TERM INVESTMENTS
(Cost $6,014,754)				6,014,754
TOTAL INVESTMENTS — 102.7%
(Cost $180,219,096) (h)				207,126,090
Other Assets/(Liabilities) — (2.7)%				(5,416,452	)
NET ASSETS — 100.0%			$	201,709,638

Abbreviation Legend

ADR American Depositary Receipt

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

(a) Non-income producing security.

(b) Investment was valued using significant unobservable inputs.

(c) This security is fair valued in good faith in accordance with procedures approved by the Board of Trustees. At March 31, 2019, these securities amounted to a value of $612,818 or 0.30% of net assets.

(d) Restricted security. Certain securities are restricted as to resale. At March 31, 2019, these securities amounted to a value of $612,818 or 0.30% of net assets. The Fund generally bears the costs, if any, associated with the disposition of restricted securities.

(e) Denotes all or a portion of security on loan. The total value of securities on loan as of March 31, 2019, was $4,408,590 or 2.19% of net assets. Total securities on loan may not correspond with the amounts identified in the Portfolio of Investments because pending sales may be in the process of recall from the brokers. (Note 2).

(f) Represents investment of security lending collateral. (Note 2).

(g) Maturity value of $6,015,380. Collateralized by U.S. Government Agency obligations with a rate of 1.750%, maturity date of 5/31/22, and an aggregate market value, including accrued interest, of $6,136,899.

(h) See Note 3 for aggregate cost for federal tax purposes.

The accompanying notes are an integral part of the portfolio of investments.

 98

MML Small Company Value Fund – Portfolio of Investments

March 31, 2019 (Unaudited)

	Number of Shares		Value
EQUITIES — 98.7%
COMMON STOCK — 98.7%
Basic Materials — 3.2%
Chemicals — 1.5%
American Vanguard Corp.		17,500	$	301,350
Minerals Technologies, Inc.		9,300		546,747
Quaker Chemical Corp.		2,911		583,161
				1,431,258
Forest Products & Paper — 0.1%
Clearwater Paper Corp. (a)		6,332		123,347
Iron & Steel — 1.2%
Carpenter Technology Corp.		15,700		719,845
Reliance Steel & Aluminum Co.		5,100		460,326
				1,180,171
Mining — 0.4%
Constellium NV Class A (a)		45,187		360,592
				3,095,368
Communications — 4.0%
Internet — 1.2%
Lightspeed POS, Inc. (a)		4,458		68,754
Q2 Holdings, Inc. (a)		7,000		484,820
Upwork, Inc. (a)		2,068		39,582
Zendesk, Inc. (a)		6,525		554,625
				1,147,781
Media — 1.6%
Cable One, Inc.		1,175		1,153,121
Scholastic Corp.		8,900		353,864
				1,506,985
Telecommunications — 1.2%
GTT Communications, Inc. (a) (b)		15,100		523,970
Harmonic, Inc. (a)		125,831		682,004
				1,205,974
				3,860,740
Consumer, Cyclical — 7.7%
Apparel — 0.8%
Steven Madden Ltd.		21,397		724,074
Auto Manufacturers — 0.3%
Blue Bird Corp. (a)		16,600		281,038
Auto Parts & Equipment — 0.8%
Garrett Motion, Inc. (a)		37,624		554,201
Methode Electronics, Inc.		1,000		28,780
Visteon Corp. (a)		3,200		215,520
				798,501
Distribution & Wholesale — 1.9%
Dorman Products, Inc. (a)		10,011		881,869
Pool Corp.		6,000		989,820
				1,871,689

 99

	Number of Shares		Value
Entertainment — 0.3%
Marriott Vacations Worldwide Corp.		3,342	$	312,477
Home Builders — 1.1%
Cavco Industries, Inc. (a)		4,900		575,897
LCI Industries		6,496		499,023
				1,074,920
Lodging — 0.6%
The St. Joe Co. (a)		32,543		536,634
Retail — 1.6%
Beacon Roofing Supply, Inc. (a)		9,800		315,168
BJ’s Wholesale Club Holdings, Inc. (a)		8,557		234,462
Express, Inc. (a)		31,000		132,680
Lumber Liquidators Holdings, Inc. (a) (b)		24,941		251,904
Party City Holdco, Inc. (a)		27,255		216,405
PriceSmart, Inc.		3,467		204,137
Red Robin Gourmet Burgers, Inc. (a)		6,900		198,789
				1,553,545
Textiles — 0.3%
Culp, Inc.		16,600		319,218
				7,472,096
Consumer, Non-cyclical — 17.8%
Biotechnology — 0.1%
Ultragenyx Pharmaceutical, Inc. (a)		1,406		97,520
Commercial Services — 7.1%
Aaron’s, Inc.		21,281		1,119,380
American Public Education, Inc. (a)		15,801		475,926
The Brink’s Co.		3,500		263,935
FTI Consulting, Inc. (a)		12,246		940,738
Green Dot Corp. Class A (a)		18,898		1,146,164
Huron Consulting Group, Inc. (a)		5,549		262,024
I3 Verticals, Inc. Class A (a)		15,700		377,114
Monro, Inc.		6,263		541,875
Navigant Consulting, Inc.		9,899		192,733
Rosetta Stone, Inc. (a)		21,475		469,229
Strategic Education, Inc.		7,994		1,049,692
				6,838,810
Foods — 2.9%
Nomad Foods Ltd. (a)		68,800		1,406,960
Post Holdings, Inc. (a)		7,337		802,668
The Simply Good Foods Co. (a)		25,110		517,015
SpartanNash Co.		5,909		93,776
				2,820,419
Health Care – Products — 4.2%
Atrion Corp.		1,530		1,344,381
Avanos Medical, Inc. (a)		18,772		801,189
Patterson Cos., Inc.		6,800		148,580
Quidel Corp. (a)		20,621		1,350,057

The accompanying notes are an integral part of the portfolio of investments.

 100

	Number of Shares		Value
West Pharmaceutical Services, Inc.		4,287	$	472,427
				4,116,634
Health Care – Services — 2.8%
The Ensign Group, Inc.		21,199		1,085,177
Molina Healthcare, Inc. (a)		7,188		1,020,408
Select Medical Holdings Corp. (a)		41,000		577,690
				2,683,275
Household Products & Wares — 0.1%
CSS Industries, Inc.		12,293		73,635
Pharmaceuticals — 0.6%
Array BioPharma, Inc. (a)		4,300		104,834
Momenta Pharmaceuticals, Inc. (a)		20,707		300,873
Xencor, Inc. (a)		6,200		192,572
				598,279
				17,228,572
Energy — 5.0%
Energy – Alternate Sources — 0.5%
REX American Resources Corp. (a)		5,387		434,246
Oil & Gas — 2.5%
Centennial Resource Development, Inc. Class A (a)		55,400		486,966
Jagged Peak Energy, Inc. (a) (b)		31,342		328,151
Kosmos Energy Ltd.		47,800		297,794
Matador Resources Co. (a)		28,307		547,174
WPX Energy, Inc. (a)		59,546		780,648
				2,440,733
Oil & Gas Services — 2.0%
Apergy Corp. (a)		4,800		197,088
Frank’s International NV (a) (b)		43,904		272,644
Keane Group, Inc. (a)		58,285		634,724
Oceaneering International, Inc. (a)		10,212		161,043
TETRA Technologies, Inc. (a)		140,400		328,536
Thermon Group Holdings, Inc. (a)		14,800		362,748
				1,956,783
				4,831,762

 101

	Number of Shares		Value
Financial — 32.3%
Banks — 15.0%
Atlantic Capital Bancshares, Inc. (a)		18,070		322,188
BankUnited, Inc.		31,100		1,038,740
BOK Financial Corp.		6,244		509,198
Columbia Banking System, Inc.		26,000		849,940
East West Bancorp, Inc.		12,026		576,887
FB Financial Corp.		15,885		504,508
Glacier Bancorp, Inc.		19,600		785,372
Heritage Commerce Corp.		23,599		285,548
Heritage Financial Corp.		16,309		491,553
Home BancShares, Inc.		82,750		1,453,918
Hope Bancorp, Inc.		35,000		457,800
Howard Bancorp, Inc. (a)		16,742		247,949
Live Oak Bancshares, Inc. (b)		13,622	$	199,017
National Bank Holdings Corp. Class A		23,500		781,610
Origin Bancorp, Inc.		10,343		352,179
PCSB Financial Corp.		19,077		373,337
Pinnacle Financial Partners, Inc.		8,965		490,386
Ponce de Leon Federal Bank (a)		18,784		262,037
Popular, Inc.		14,100		735,033
Prosperity Bancshares, Inc.		11,512		795,019
Sterling Bancorp, Inc.		25,001		253,510
SVB Financial Group (a)		1,077		239,482
Texas Capital Bancshares, Inc. (a)		8,900		485,851
Towne Bank		31,467		778,808
Webster Financial Corp.		13,775		697,979
Wintrust Financial Corp.		8,100		545,373
				14,513,222
Diversified Financial Services — 1.5%
Cboe Global Markets, Inc.		2,321		221,516
Houlihan Lokey, Inc.		10,826		496,372
PennyMac Financial Services, Inc.		20,495		455,809
Virtus Investment Partners, Inc.		3,400		331,670
				1,505,367
Insurance — 3.0%
Assured Guaranty Ltd.		5,882		261,337
Employers Holdings, Inc.		10,838		434,712
ProAssurance Corp.		15,675		542,512
Radian Group, Inc.		36,400		754,936
Safety Insurance Group, Inc.		4,600		400,844
State Auto Financial Corp.		16,431		540,909
				2,935,250
Real Estate — 0.7%
McGrath RentCorp		11,399		644,841
Real Estate Investment Trusts (REITS) — 10.2%
Acadia Realty Trust		16,585		452,273
American Campus Communities, Inc.		12,991		618,112
Cedar Realty Trust, Inc.		153,212		520,921
Douglas Emmett, Inc.		12,600		509,292
EastGroup Properties, Inc.		9,697		1,082,573
Healthcare Realty Trust, Inc.		27,200		873,392
JBG SMITH Properties		19,135		791,232
Kilroy Realty Corp.		7,607		577,828
PotlatchDeltic Corp.		15,288		577,733
PS Business Parks, Inc.		5,200		815,516
QTS Realty Trust, Inc. Class A		5,714		257,073
Saul Centers, Inc.		10,300		529,111
Sunstone Hotel Investors, Inc.		49,700		715,680
Terreno Realty Corp.		24,100		1,013,164
Washington Real Estate Investment Trust		19,100		542,058
				9,875,958

The accompanying notes are an integral part of the portfolio of investments.

 102

	Number of Shares		Value
Savings & Loans — 1.9%
Meridian Bancorp, Inc.		34,560	$	542,246
United Financial Bancorp, Inc.		24,506		351,661
WSFS Financial Corp.		25,005		965,193
				1,859,100
				31,333,738
Industrial — 15.4%
Aerospace & Defense — 1.5%
MSA Safety, Inc.		4,944		511,210
Triumph Group, Inc.		50,167		956,183
				1,467,393
Building Materials — 0.6%
Universal Forest Products, Inc.		20,200		603,778
Electrical Components & Equipment — 3.1%
Belden, Inc.		28,966		1,555,474
Littelfuse, Inc.		8,012		1,462,030
				3,017,504
Electronics — 1.8%
Brady Corp. Class A		9,377		435,187
Knowles Corp. (a)		44,669		787,514
Mesa Laboratories, Inc.		2,261		521,160
				1,743,861
Engineering & Construction — 0.7%
Aegion Corp. (a)		36,145		635,068
Environmental Controls — 0.7%
Stericycle, Inc. (a)		12,668		689,393
Machinery – Diversified — 0.2%
Cactus, Inc. Class A (a)		5,417		192,845
Metal Fabricate & Hardware — 1.7%
CIRCOR International, Inc. (a)		18,026		587,648
RBC Bearings, Inc. (a)		3,231		410,886
Sun Hydraulics Corp.		13,861		644,675
				1,643,209
Miscellaneous – Manufacturing — 1.9%
ESCO Technologies, Inc.		12,000		804,360
Hillenbrand, Inc.		7,058		293,119
Lydall, Inc. (a)		1,905		44,691
Myers Industries, Inc.		41,194		704,829
				1,846,999
Transportation — 3.2%
Genesee & Wyoming, Inc. Class A (a)		8,993		783,650
International Seaways, Inc. (a)		24,949		427,626
Kirby Corp. (a)		5,050		379,305
Landstar System, Inc.		10,900		1,192,351
Universal Logistics Holdings, Inc.		13,900		273,552
				3,056,484
				14,896,534
Technology — 5.5%
Computers — 1.6%
Conduent, Inc. (a)		46,309	$	640,454
Cray, Inc. (a)		4,208		109,618
Cubic Corp.		13,509		759,746
				1,509,818

 103

	Number of Shares		Value
Semiconductors — 2.1%
Cabot Microelectronics Corp.		6,716		751,923
Cypress Semiconductor Corp.		12,655		188,813
Entegris, Inc.		9,155		326,742
MaxLinear, Inc. (a)		22,756		580,961
Rudolph Technologies, Inc. (a)		10,200		232,560
				2,080,999
Software — 1.8%
Ceridian HCM Holding, Inc. (a) (b)		12,631		647,970
Cision Ltd. (a)		43,318		596,489
The Descartes Systems Group, Inc. (a)		2,152		78,290
RealPage, Inc. (a)		7,013		425,619
				1,748,368
				5,339,185
Utilities — 7.8%
Electric — 3.3%
MGE Energy, Inc.		5,700		387,429
NorthWestern Corp.		12,337		868,648
PNM Resources, Inc.		27,560		1,304,690
Portland General Electric Co.		11,464		594,294
				3,155,061
Gas — 3.8%
Atmos Energy Corp.		4,900		504,357
Chesapeake Utilities Corp.		13,100		1,194,851
ONE Gas, Inc.		14,500		1,290,935
RGC Resources, Inc.		4,676		123,961
Southwest Gas Holdings, Inc.		7,449		612,755
				3,726,859
Water — 0.7%
California Water Service Group		11,775		639,201
				7,521,121
TOTAL COMMON STOCK
(Cost $77,494,017)				95,579,116
TOTAL EQUITIES
(Cost $77,494,017)				95,579,116

The accompanying notes are an integral part of the portfolio of investments.

 104

	Number of Shares		Value
MUTUAL FUNDS — 1.0%
Diversified Financial Services — 1.0%
State Street Navigator Securities Lending Prime Portfolio (c)		954,570	$	954,570
TOTAL MUTUAL FUNDS
(Cost $954,570)				954,570
TOTAL LONG-TERM INVESTMENTS
(Cost $78,448,587)				96,533,686
SHORT-TERM INVESTMENTS — 1.2%
Mutual Fund — 0.0%
T. Rowe Price Government Reserve Investment Fund		1,043		1,043

		Principal Amount
Repurchase Agreement — 1.2%
Fixed Income Clearing Corp., Repurchase Agreement, dated 3/29/19, 1.250%, due 4/01/19 (d)	$	1,227,060		1,227,060
TOTAL SHORT-TERM INVESTMENTS
(Cost $1,228,103)				1,228,103
TOTAL INVESTMENTS — 100.9%
(Cost $79,676,690) (e)				97,761,789
Other Assets/(Liabilities) — (0.9)%				(901,473	)
NET ASSETS — 100.0%			$	96,860,316

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

(a) Non-income producing security.

(b) Denotes all or a portion of security on loan. The total value of securities on loan as of March 31, 2019, was $928,979 or 0.96% of net assets. Total securities on loan may not correspond with the amounts identified in the Portfolio of Investments because pending sales may be in the process of recall from the brokers. (Note 2).

(c) Represents investment of security lending collateral. (Note 2).

(d) Maturity value of $1,227,188. Collateralized by U.S. Government Agency obligations with a rate of 1.875%, maturity date of 4/30/22, and an aggregate market value, including accrued interest, of $1,252,751.

(e) See Note 3 for aggregate cost for federal tax purposes.

The accompanying notes are an integral part of the portfolio of investments.

 105

MML Small/Mid Cap Value Fund – Portfolio of Investments

March 31, 2019 (Unaudited)

	Number of Shares		Value
EQUITIES — 96.9%
COMMON STOCK — 96.9%
Basic Materials — 2.4%
Chemicals — 1.4%
Orion Engineered Carbons SA		63,067	$	1,197,642
Westlake Chemical Corp.		23,314		1,582,088
				2,779,730
Iron & Steel — 0.1%
Carpenter Technology Corp.		3,000		137,550
Mining — 0.9%
Alcoa Corp. (a)		66,380		1,869,261
				4,786,541
Communications — 2.4%
Internet — 0.7%
Criteo SA (a)		68,895		1,379,967
Media — 1.2%
Houghton Mifflin Harcourt Co. (a)		157,480		1,144,880
Scholastic Corp.		30,440		1,210,294
				2,355,174
Telecommunications — 0.5%
Finisar Corp. (a)		43,914		1,017,487
				4,752,628
Consumer, Cyclical — 13.4%
Airlines — 3.6%
Alaska Air Group, Inc.		48,960		2,747,635
Hawaiian Holdings, Inc.		71,714		1,882,493
SkyWest, Inc.		46,120		2,503,855
				7,133,983
Apparel — 1.8%
Capri Holdings Ltd. (a)		33,180		1,517,985
Skechers U.S.A., Inc. Class A (a)		59,398		1,996,367
				3,514,352
Auto Parts & Equipment — 2.1%
Cooper-Standard Holding, Inc. (a)		25,555		1,200,063
Dana, Inc.		62,669		1,111,748
Lear Corp.		13,818		1,875,241
				4,187,052
Home Builders — 2.2%
Lennar Corp. Class A		47,284		2,321,171
Taylor Morrison Home Corp. Class A (a)		121,397		2,154,797
				4,475,968
Office Furnishings — 0.7%
Steelcase, Inc. Class A		103,364		1,503,946
Retail — 3.0%
Bloomin’ Brands, Inc.		90,845		1,857,780
BMC Stock Holdings, Inc. (a)		84,369		1,490,800
The Michaels Cos., Inc. (a)		127,350	$	1,454,337
Signet Jewelers Ltd.		48,680		1,322,149
				6,125,066
				26,940,367

 106

	Number of Shares		Value
Consumer, Non-cyclical — 11.5%
Beverages — 1.1%
Cott Corp.		152,614		2,229,690
Commercial Services — 3.1%
Booz Allen Hamilton Holding Corp.		34,294		1,993,853
Quanta Services, Inc.		63,721		2,404,831
Sotheby’s (a)		50,167		1,893,804
				6,292,488
Foods — 4.2%
Ingredion, Inc.		23,519		2,227,014
Nomad Foods Ltd. (a)		153,256		3,134,085
US Foods Holding Corp. (a)		87,340		3,049,040
				8,410,139
Health Care – Services — 3.1%
ICON PLC (a)		15,383		2,101,010
Molina Healthcare, Inc. (a)		17,012		2,415,024
WellCare Health Plans, Inc. (a)		5,932		1,600,157
				6,116,191
				23,048,508
Energy — 6.8%
Oil & Gas — 2.7%
Cimarex Energy Co.		12,064		843,274
Oasis Petroleum, Inc. (a)		205,120		1,238,925
QEP Resources, Inc. (a)		240,151		1,870,776
SM Energy Co.		88,850		1,553,986
				5,506,961
Oil & Gas Services — 4.1%
Dril-Quip, Inc. (a)		38,774		1,777,788
MRC Global, Inc. (a)		99,080		1,731,919
Oil States International, Inc. (a)		79,540		1,348,999
Patterson-UTI Energy, Inc.		130,217		1,825,642
RPC, Inc.		128,237		1,463,184
				8,147,532
				13,654,493
Financial — 33.9%
Banks — 9.9%
Associated Banc-Corp.		88,137		1,881,725
BankUnited, Inc.		84,735		2,830,149
Comerica, Inc.		26,130		1,915,852
Huntington Bancshares, Inc.		91,708		1,162,857
Synovus Financial Corp.		66,370		2,280,473
Texas Capital Bancshares, Inc. (a)		39,294		2,145,059
Umpqua Holdings Corp.		147,508		2,433,882
Webster Financial Corp.		42,863		2,171,868

The accompanying notes are an integral part of the portfolio of investments.

 107

	Number of Shares		Value
Zions Bancorp NA		69,955	$	3,176,657
				19,998,522
Diversified Financial Services — 0.8%
OneMain Holdings, Inc.		53,218		1,689,671
Insurance — 10.0%
American Financial Group, Inc.		25,231		2,427,474
Essent Group Ltd. (a)		51,223		2,225,639
Everest Re Group Ltd.		16,608		3,586,664
First American Financial Corp.		47,980		2,470,970
The Hanover Insurance Group, Inc.		12,280		1,402,008
Kemper Corp.		14,033		1,068,473
Old Republic International Corp.		87,903		1,838,931
Reinsurance Group of America, Inc.		25,086		3,561,710
Selective Insurance Group, Inc.		24,367		1,541,944
				20,123,813
Real Estate Investment Trusts (REITS) — 12.0%
American Campus Communities, Inc.		58,942		2,804,460
Camden Property Trust		31,962		3,244,143
Cousins Properties, Inc.		134,535		1,299,608
CubeSmart		95,240		3,051,490
Empire State Realty Trust, Inc. Class A		164,574		2,600,269
MGM Growth Properties LLC Class A		77,827		2,509,921
Park Hotels & Resorts, Inc.		83,204		2,585,980
STAG Industrial, Inc.		96,890		2,872,789
Sun Communities, Inc.		26,377		3,126,202
				24,094,862
Savings & Loans — 1.2%
Sterling Bancorp		124,660		2,322,416
				68,229,284
Industrial — 9.9%
Aerospace & Defense — 0.7%
AAR Corp.		43,093		1,400,953
Electrical Components & Equipment — 0.5%
EnerSys		15,589		1,015,779
Electronics — 1.3%
Avnet, Inc.		61,980		2,688,073
Engineering & Construction — 1.4%
Granite Construction, Inc.		32,829		1,416,571
Tutor Perini Corp. (a)		81,340		1,392,541
				2,809,112
Hand & Machine Tools — 1.1%
Kennametal, Inc.		3,000		110,250
Regal Beloit Corp.		26,760		2,190,841
				2,301,091
Machinery – Construction & Mining — 1.4%
Oshkosh Corp.		19,352		1,453,916
Terex Corp.		43,020	$	1,382,232
				2,836,148
Miscellaneous – Manufacturing — 1.0%
Trinseo SA		42,920		1,944,276

 108

	Number of Shares		Value
Packaging & Containers — 2.0%
Graphic Packaging Holding Co.		170,197		2,149,588
Sealed Air Corp.		40,106		1,847,283
				3,996,871
Transportation — 0.5%
Atlas Air Worldwide Holdings, Inc. (a)		18,217		921,052
				19,913,355
Technology — 11.1%
Computers — 4.5%
Amdocs Ltd.		33,598		1,817,988
Genpact Ltd.		68,442		2,407,789
NCR Corp. (a)		96,620		2,636,760
NetScout Systems, Inc. (a)		79,610		2,234,653
				9,097,190
Semiconductors — 2.8%
Cypress Semiconductor Corp.		158,878		2,370,459
Kulicke & Soffa Industries, Inc.		55,700		1,231,527
MaxLinear, Inc. (a)		78,526		2,004,769
				5,606,755
Software — 3.8%
CommVault Systems, Inc. (a)		26,740		1,731,148
Nuance Communications, Inc. (a)		169,638		2,871,971
Verint Systems, Inc. (a)		52,245		3,127,386
				7,730,505
				22,434,450
Utilities — 5.5%
Electric — 4.5%
Alliant Energy Corp.		63,054		2,971,735
Black Hills Corp.		23,872		1,768,199
PNM Resources, Inc.		40,555		1,919,874
Portland General Electric Co.		46,007		2,385,003
				9,044,811
Gas — 1.0%
Southwest Gas Holdings, Inc.		24,160		1,987,401
				11,032,212
TOTAL COMMON STOCK
(Cost $187,505,287)				194,791,838
TOTAL EQUITIES
(Cost $187,505,287)				194,791,838
TOTAL LONG-TERM INVESTMENTS
(Cost $187,505,287)				194,791,838

The accompanying notes are an integral part of the portfolio of investments.

 109

	Principal Amount		Value
SHORT-TERM INVESTMENTS — 2.8%
Repurchase Agreement — 2.8%
Fixed Income Clearing Corp., Repurchase Agreement, dated 3/29/19, 1.250%, due 4/01/19 (b)	$	5,627,424	$	5,627,424
TOTAL SHORT-TERM INVESTMENTS
(Cost $5,627,424)				5,627,424
TOTAL INVESTMENTS — 99.7%
(Cost $193,132,711) (c)				200,419,262
Other Assets/(Liabilities) — 0.3%				556,361
NET ASSETS — 100.0%			$	200,975,623

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

(a) Non-income producing security.

(b) Maturity value of $5,628,010. Collateralized by U.S. Government Agency obligations with a rate of 2.375%, maturity date of 3/15/22, and an aggregate market value, including accrued interest, of $5,742,225.

(c) See Note 3 for aggregate cost for federal tax purposes.

The accompanying notes are an integral part of the portfolio of investments.

 110

MML Total Return Bond Fund – Portfolio of Investments

March 31, 2019 (Unaudited)

	Principal Amount		Value
BONDS & NOTES — 98.3%
BANK LOANS — 0.3%
Advertising — 0.0%
Lamar Media Corp., 2018 Term Loan B, 1 mo. LIBOR + 1.750%
4.250% VRN 3/14/25	$	99,000	$	98,670
Diversified Financial Services — 0.3%
Delos Finance Sarl, 2018 Term Loan B, 3 mo. LIBOR + 1.750%
4.351% VRN 10/06/23		991,000		989,266
TOTAL BANK LOANS
(Cost $1,090,393)				1,087,936
CORPORATE DEBT — 26.8%
Advertising — 0.0%
Clear Channel International BV
8.750% 12/15/20 (a)		80,002		82,100
Aerospace & Defense — 0.3%
L3 Technologies, Inc.
4.400% 6/15/28		640,000		671,559
Northrop Grumman Corp.
3.250% 1/15/28		640,000		629,313
				1,300,872
Agriculture — 0.2%
BAT Capital Corp.
4.390% 8/15/37		400,000		357,896
4.540% 8/15/47		300,000		262,781
Reynolds American, Inc.
4.450% 6/12/25		195,000		200,447
				821,124
Airlines — 0.5%
Continental Airlines Pass-Through Trust
7.250% 5/10/21		1,536,112		1,568,678
Northwest Airlines Pass-Through Trust
7.041% 10/01/23		348,718		374,345
				1,943,023
Auto Manufacturers — 1.0%
Ford Motor Credit Co. LLC
2.425% 6/12/20		575,000		567,452
3.677% FRN 10/12/21 (b)		405,000		392,390
5.596% 1/07/22		1,246,000		1,285,112
8.125% 1/15/20		805,000		834,321
General Motors Financial Co., Inc.
2.350% 10/04/19		500,000		498,759
2.400% 5/09/19		505,000		504,783
				4,082,817
Auto Parts & Equipment — 0.0%
Panther BF Aggregator 2 LP/Panther Finance Co., Inc.
6.250% 5/15/26 (a) (e)	$	120,000	$	122,400

 111

	Principal Amount		Value
Banks — 4.2%
Bank of America Corp.
2.738% VRN 1/23/22 (b)		1,085,000		1,080,792
3.004% VRN 12/20/23 (b)		1,274,000		1,268,927
3.093% VRN 10/01/25 (b)		860,000		852,871
4.271% VRN 7/23/29 (b)		1,750,000		1,822,146
Citigroup, Inc.
3.142% VRN 1/24/23 (b)		750,000		752,591
8.500% 5/22/19		1,200,000		1,209,480
The Goldman Sachs Group, Inc. 3.272% VRN 9/29/25 (b)		645,000		636,713
3.814% VRN 4/23/29 (b)		650,000		643,948
4.223% VRN 5/01/29 (b)		195,000		199,290
JP Morgan Chase & Co.
2.950% 10/01/26		895,000		874,254
4.023% VRN 12/05/24 (b)		970,000		1,006,649
4.203% VRN 7/23/29 (b)		750,000		782,380
Lloyds Banking Group PLC
2.907% VRN 11/07/23 (b)		430,000		419,468
3.900% 3/12/24		400,000		405,114
Morgan Stanley
3 mo. USD LIBOR + 0.930%
3.691% FRN 7/22/22		510,000		512,685
Santander UK Group Holdings PLC 3.373% VRN 1/05/24 (b)		645,000		632,121
Santander UK PLC
3.400% 6/01/21		1,250,000		1,259,541
Wells Fargo & Co.
2.625% 7/22/22		195,000		193,565
3.000% 4/22/26		475,000		464,117
3.000% 10/23/26		845,000		823,941
3.550% 9/29/25		725,000		736,932
				16,577,525
Beverages — 0.4%
Anheuser-Busch Cos. LLC/Anheuser-Busch InBev Worldwide, Inc.
4.900% 2/01/46 (a)		600,000		602,631
Anheuser-Busch InBev Worldwide, Inc.
4.000% 4/13/28		435,000		442,330
Bacardi Ltd.
4.700% 5/15/28 (a)		195,000		194,964
5.300% 5/15/48 (a)		210,000		201,275
				1,441,200
Biotechnology — 0.7%
Amgen, Inc.
4.400% 5/01/45		500,000		490,135

The accompanying notes are an integral part of the portfolio of investments.

 112

	Principal Amount		Value
Baxalta, Inc.
2.875% 6/23/20	$	216,000	$	215,693
Celgene Corp.
3.900% 2/20/28		440,000		449,211
5.000% 8/15/45		750,000		787,041
Gilead Sciences, Inc.
3.650% 3/01/26		525,000		535,287
4.150% 3/01/47		445,000		429,369
				2,906,736
Chemicals — 0.2%
Axalta Coating Systems LLC
4.875% 8/15/24 (a)		150,000		150,188
International Flavors & Fragrances, Inc.
5.000% 9/26/48		570,000		598,352
Valvoline, Inc. 5.500% 7/15/24		200,000		203,500
				952,040
Commercial Services — 0.2%
IHS Markit Ltd.
4.000% 3/01/26 (a)		253,000		252,747
4.750% 2/15/25 (a)		120,000		124,919
4.750% 8/01/28		385,000		402,829
Matthews International Corp. 5.250% 12/01/25 (a)		120,000		115,200
				895,695
Computers — 0.3%
Apple, Inc.
4.650% 2/23/46		850,000		960,345
Cosmetics & Personal Care — 0.0%
First Quality Finance Co., Inc.
5.000% 7/01/25 (a)		174,000		169,220
Diversified Financial Services — 1.0%
AerCap Ireland Capital DAC/AerCap Global Aviation Trust
4.500% 5/15/21		490,000		500,592
Air Lease Corp.
3.500% 1/15/22		575,000		580,272
4.750% 3/01/20 (b)		855,000		868,456
GE Capital International Funding Co. Unlimited Co.
2.342% 11/15/20		725,000		716,017
4.418% 11/15/35		780,000		721,100
Raymond James Financial, Inc.
4.950% 7/15/46		400,000		423,033
				3,809,470

 113

	Principal Amount		Value
Electric — 2.6%
AEP Transmission Co. LLC
3.100% 12/01/26		855,000		845,492
Duke Energy Carolinas LLC
4.000% 9/30/42		1,000,000		1,028,488
Duquesne Light Holdings, Inc.
6.400% 9/15/20 (a)	$	1,000,000	$	1,043,799
Emera US Finance LP
2.150% 6/15/19		1,068,000		1,065,904
Jersey Central Power & Light Co.
4.700% 4/01/24 (a)		800,000		851,539
6.400% 5/15/36		425,000		506,452
LG&E & KU Energy LLC
4.375% 10/01/21		1,200,000		1,232,613
MidAmerican Energy Co.
4.800% 9/15/43		1,400,000		1,592,444
NextEra Energy Capital Holdings, Inc.
3.218% FRN 5/04/21 (b)		2,000,000		1,999,182
				10,165,913
Entertainment — 0.1%
Churchill Downs, Inc.
5.500% 4/01/27 (a)		242,000		245,388
Foods — 1.1%
Campbell Soup Co.
3.300% 3/15/21		650,000		654,058
Chobani LLC/Chobani Finance Corp., Inc.
7.500% 4/15/25 (a) (c)		85,000		76,181
Conagra Brands, Inc.
5.400% 11/01/48		190,000		191,035
General Mills, Inc.
4.200% 4/17/28 (c)		330,000		342,912
4.700% 4/17/48		160,000		159,755
Kraft Heinz Foods Co.
3.117% FRN 8/09/19 (b)		750,000		750,293
3.950% 7/15/25		500,000		503,872
4.625% 1/30/29		1,020,000		1,049,216
The Kroger Co.
5.400% 1/15/49		225,000		233,145
Pilgrim’s Pride Corp.
5.875% 9/30/27 (a)		152,000		153,140
Post Holdings, Inc.
5.000% 8/15/26 (a)		36,000		35,010
Tyson Foods, Inc. 4.000% 3/01/26		175,000		178,977
				4,327,594
Gas — 0.2%
CenterPoint Energy Resources Corp.
6.250% 2/01/37		595,000		699,536
Southern Co. Gas Capital Corp.
2.450% 10/01/23		100,000		97,167
				796,703
Health Care – Products — 0.5%
Becton Dickinson and Co.
2.404% 6/05/20		440,000		436,848
2.894% 6/06/22		400,000		398,133

The accompanying notes are an integral part of the portfolio of investments.

 114

	Principal Amount		Value
Hologic, Inc.
4.625% 2/01/28 (a)	$	160,000	$	157,200
Teleflex, Inc.
4.625% 11/15/27		107,000		106,131
Zimmer Biomet Holdings, Inc.
3.375% FRN 3/19/21 (b)		655,000		652,791
				1,751,103
Health Care – Services — 1.5%
Aetna, Inc.
2.800% 6/15/23		485,000		476,275
Anthem, Inc.
3.125% 5/15/22		500,000		504,128
3.300% 1/15/23		530,000		536,192
Catalent Pharma Solutions, Inc.
4.875% 1/15/26 (a)		240,000		237,600
Centene Corp.
5.625% 2/15/21		422,000		428,330
CHS/Community Health Systems, Inc.
8.000% 3/15/26 (a)		83,000		79,680
8.625% 1/15/24 (a)		60,000		60,075
Cigna Holding Co.
3.050% 10/15/27		945,000		892,758
Fresenius Medical Care US Finance II, Inc.
5.625% 7/31/19 (a)		485,000		488,118
HCA, Inc.
5.000% 3/15/24		112,000		118,742
5.375% 2/01/25		79,000		83,740
5.875% 2/01/29		147,000		158,385
6.500% 2/15/20		196,000		201,696
Molina Healthcare, Inc.
5.375% STEP 11/15/22		225,000		233,575
Providence St. Joseph Health Obligated Group
2.746% 10/01/26		845,000		802,501
Tenet Healthcare Corp.
4.375% 10/01/21		200,000		203,480
4.500% 4/01/21		26,000		26,390
4.625% 7/15/24		184,000		184,285
WellCare Health Plans, Inc.
5.375% 8/15/26 (a) (c)		155,000		162,169
				5,878,119
Household Products & Wares — 0.1%
Central Garden & Pet Co.
6.125% 11/15/23		36,000		37,575
5.125% 2/01/28		243,000		222,953
Spectrum Brands, Inc.
5.750% 7/15/25		245,000		246,837
				507,365
Insurance — 0.6%
Berkshire Hathaway Finance Corp.
4.300% 5/15/43	$	500,000	$	529,141
4.400% 5/15/42		750,000		801,214
Farmers Exchange Capital III
3 mo. USD LIBOR + 3.454%
5.454% VRN 10/15/54 (a)		970,000		952,734
				2,283,089
Internet — 0.0%
Zayo Group LLC/Zayo Capital, Inc.
5.750% 1/15/27 (a)		113,000		112,751

 115

	Principal Amount		Value
Media — 0.8%
CCO Holdings LLC/CCO Holdings Capital Corp.
5.125% 5/01/27 (a)		122,000		122,762
Charter Communications Operating LLC/Charter Communications Operating Capital
3.750% 2/15/28		950,000		915,684
6.484% 10/23/45		200,000		224,201
Comcast Corp.
3.999% 11/01/49		500,000		486,443
4.700% 10/15/48		520,000		563,736
CSC Holdings LLC
5.375% 2/01/28 (a)		200,000		200,500
5.500% 5/15/26 (a)		200,000		205,560
6.500% 2/01/29 (a)		200,000		213,000
DISH DBS Corp.
5.875% 7/15/22		100,000		96,780
Virgin Media Secured Finance PLC
5.250% 1/15/26 (a)		200,000		201,250
				3,229,916
Miscellaneous – Manufacturing — 1.0%
General Electric Co.
5.500% 1/08/20		875,000		893,977
4.625% 1/07/21		1,020,000		1,047,198
4.650% 10/17/21		370,000		383,454
5.550% 1/05/26		580,000		614,029
5.875% 1/14/38		244,000		259,552
Siemens Financieringsmaatschappij NV
2.000% 9/15/23 (a)		550,000		530,065
				3,728,275
Oil & Gas — 0.7%
Antero Resources Corp.
5.000% 3/01/25 (c)		48,000		47,160
5.125% 12/01/22		250,000		251,325
Canadian Natural Resources Ltd.
3.850% 6/01/27		171,000		171,433
Centennial Resource Production LLC
6.875% 4/01/27 (a)		105,000		106,029

The accompanying notes are an integral part of the portfolio of investments.

 116

	Principal Amount		Value
Diamondback Energy, Inc.
4.750% 11/01/24 (a)	$	16,000	$	16,357
Gulfport Energy Corp.
6.375% 5/15/25		47,000		42,535
KazMunayGas National Co. JSC
5.375% 4/24/30 (d)		200,000		209,536
Matador Resources Co.
5.875% 9/15/26		105,000		104,737
Noble Energy, Inc.
5.250% 11/15/43		140,000		142,753
Parsley Energy LLC / Parsley Finance Corp.
5.375% 1/15/25 (a)		210,000		209,475
Petrobras Global Finance BV
5.750% 2/01/29		200,000		198,100
Petroleos Mexicanos
6.500% 1/23/29		400,000		396,400
Range Resources Corp.
4.875% 5/15/25 (c)		82,000		76,055
5.000% 3/15/23 (c)		75,000		73,500
Shell International Finance BV
4.375% 5/11/45		415,000		453,309
Transocean Guardian Ltd.
5.875% 1/15/24 (a)		143,640		145,795
Transocean Pontus Ltd.
6.125% 8/01/25 (a)		163,485		165,528
Transocean Poseidon Ltd.
6.875% 2/01/27 (a)		54,000		56,160
				2,866,187
Oil & Gas Services — 0.0%
Transocean Proteus Ltd.
6.250% 12/01/24 (a)		66,400		68,143
USA Compression Partners LP / USA Compression Finance Corp.
6.875% 9/01/27 (a)		96,000		97,560
				165,703
Packaging & Containers — 0.7%
Amcor Finance USA, Inc.
3.625% 4/28/26 (a)		650,000		636,481
Ball Corp.
4.375% 12/15/20		350,000		355,740
Graphic Packaging International LLC
4.125% 8/15/24		200,000		195,500
Reynolds Group Issuer, Inc./Reynolds Group Issuer LLC/Reynolds Group Issuer Lu
5.750% 10/15/20		591,156		591,895
Sealed Air Corp.
5.500% 9/15/25 (a)		190,000		200,013
Silgan Holdings, Inc.
4.750% 3/15/25		250,000		245,312
WRKCo, Inc.
4.900% 3/15/29	$	385,000	$	416,685
				2,641,626

 117

	Principal Amount		Value
Pharmaceuticals — 1.1%
AbbVie, Inc.
3.600% 5/14/25		500,000		501,121
Bausch Health Cos., Inc.
5.500% 3/01/23 (a)		67,000		67,335
5.500% 11/01/25 (a)		117,000		119,486
Bayer US Finance Il LLC
4.375% 12/15/28 (a)		850,000		843,992
Cigna Corp.
4.125% 11/15/25 (a)		800,000		827,986
CVS Health Corp.
5.050% 3/25/48		1,090,000		1,098,071
Shire Acquisitions Investments Ireland DAC
1.900% 9/23/19		500,000		497,840
Teva Pharmaceutical Finance Netherlands III BV
1.700% 7/19/19		277,000		275,720
				4,231,551
Pipelines — 1.8%
Energy Transfer Operating LP
5.150% 3/15/45		400,000		384,466
Energy Transfer Operating LP
5.500% 6/01/27		254,000		275,192
5.875% 1/15/24		400,000		436,623
6.250% 4/15/49		244,000		273,300
Florida Gas Transmission Co. LLC
7.900% 5/15/19 (a)		1,000,000		1,005,728
Kinder Morgan, Inc.
4.300% 3/01/28		500,000		516,499
Plains All American Pipeline LP/PAA Finance Corp.
4.650% 10/15/25		600,000		625,099
Rockies Express Pipeline LLC
5.625% 4/15/20 (a)		381,000		389,096
Ruby Pipeline LLC
6.000% 4/01/22 (a)		630,682		616,313
Sabine Pass Liquefaction LLC, Series WI,
5.750% 5/15/24		290,000		319,589
Sunoco Logistics Partners Operations LP
5.400% 10/01/47		644,000		643,218
Targa Resources Partners LP/Targa Resources Partners Finance Corp.
6.875% 1/15/29 (a)		166,000		180,318
TC PipeLines LP
3.900% 5/25/27		500,000		494,460
TransMontaigne Partners LP/TLP Finance Corp.
6.125% 2/15/26		130,000		122,200

The accompanying notes are an integral part of the portfolio of investments.

 118

	Principal Amount		Value
Williams Cos., Inc.
4.500% 11/15/23	$	570,000	$	598,287
				6,880,388
Real Estate Investment Trusts (REITS) — 2.2%
Alexandria Real Estate Equities, Inc.
3.450% 4/30/25		450,000		447,943
American Campus Communities Operating Partnership LP
3.350% 10/01/20		500,000		501,851
3.750% 4/15/23		650,000		658,767
Boston Properties LP
3.200% 1/15/25		430,000		426,607
Duke Realty LP
3.875% 2/15/21		1,000,000		1,015,352
GLP Capital LP/GLP Financing II, Inc.
5.250% 6/01/25		190,000		199,025
5.300% 1/15/29		310,000		323,516
5.375% 4/15/26		695,000		726,206
HCP, Inc.
3.875% 8/15/24		500,000		509,579
4.250% 11/15/23		500,000		520,996
Healthcare Realty Trust, Inc.
3.750% 4/15/23		235,000		236,542
MGM Growth Properties Operating Partnership LP/MGP Finance Co-Issuer, Inc.
5.625% 5/01/24		100,000		104,000
SBA Communications Corp.
4.875% 9/01/24		98,000		99,009
SL Green Operating Partnership LP
3.250% 10/15/22		500,000		497,857
Ventas Realty LP
3.500% 2/01/25		1,500,000		1,500,341
Welltower, Inc.
4.000% 6/01/25		830,000		853,569
				8,621,160
Retail — 0.5%
1011778 BC ULC/New Red Finance, Inc.
4.250% 5/15/24 (a)		299,000		296,010
Alimentation Couche-Tard, Inc.
2.700% 7/26/22 (a)		195,000		192,962
The Home Depot, Inc.
3.900% 12/06/28		215,000		228,462
KFC Holding Co./Pizza Hut Holdings LLC/Taco Bell of America LLC
4.750% 6/01/27 (a)		210,000		206,325
Rite Aid Corp.
6.125% 4/01/23 (a) (c)		321,000		264,825
Walgreens Boots Alliance, Inc.
3.800% 11/18/24		400,000		407,673
4.800% 11/18/44	$	275,000	$	263,555
				1,859,812
Semiconductors — 0.2%
Broadcom Corp./Broadcom Cayman Finance Ltd.
2.375% 1/15/20		750,000		745,988
NXP BV/NXP Funding LLC
4.125% 6/01/21 (a)		200,000		203,840
				949,828

 119

	Principal Amount		Value
Software — 0.1%
Change Healthcare Holdings LLC/Change Healthcare Finance, Inc.
5.750% 3/01/25 (a)		122,000		120,475
SS&C Technologies, Inc.
5.500% 9/30/27 (a)		117,000		118,170
				238,645
Telecommunications — 1.9%
AT&T, Inc.
3.950% 1/15/25		160,000		163,270
4.350% 6/15/45		250,000		229,388
4.800% 6/15/44		1,300,000		1,276,290
5.150% 11/15/46		530,000		543,957
5.250% 3/01/37		425,000		445,279
CommScope Finance LLC
6.000% 3/01/26 (a)		224,000		231,699
Intelsat Jackson Holdings SA
5.500% 8/01/23		171,000		151,762
8.500% 10/15/24 (a)		114,000		110,865
9.750% 7/15/25 (a)		223,000		226,412
Level 3 Financing, Inc.
5.250% 3/15/26		85,000		84,788
5.375% 5/01/25		160,000		161,968
Sprint Capital Corp.
8.750% 3/15/32		65,000		68,582
Sprint Corp.
7.125% 6/15/24		21,000		21,315
7.625% 2/15/25		49,000		49,980
7.625% 3/01/26		104,000		105,404
Sprint Spectrum Co. LLC/Sprint Spectrum Co. II LLC/Sprint Spectrum Co. III LLC
3.360% STEP 3/20/23 (a)		403,125		403,004
4.738% 9/20/29 (a)		870,000		879,787
T-Mobile USA, Inc.
4.500% 2/01/26		104,000		103,943
4.750% 2/01/28		119,000		117,959
Verizon Communications, Inc.
4.016% 12/03/29 (a)		510,000		524,673
4.329% 9/21/28		300,000		317,261
5.250% 3/16/37		630,000		708,709

The accompanying notes are an integral part of the portfolio of investments.

 120

	Principal Amount		Value
Vodafone Group PLC
4.375% 5/30/28	$	420,000	$	426,897
				7,353,192
Transportation — 0.1%
Union Pacific Corp.
3.950% 9/10/28		425,000		445,540
TOTAL CORPORATE DEBT
(Cost $104,293,354)				105,344,415
MUNICIPAL OBLIGATIONS — 1.2%
City of New York NY
5.206% 10/01/31		750,000		871,748
Jersey City Municipal Utilities Authority
5.470% 5/15/27		850,000		947,495
Los Angeles Unified School District
5.755% 7/01/29		1,000,000		1,186,400
New York State Dormitory Authority
5.289% 3/15/33		750,000		877,770
State of California
7.950% 3/01/36		850,000		890,570
				4,773,983
TOTAL MUNICIPAL OBLIGATIONS
(Cost $4,946,956)				4,773,983
NON-U.S. GOVERNMENT AGENCY OBLIGATIONS — 14.8%
Commercial MBS — 1.8%
BAMLL Commercial Mortgage Securities Trust, Series 2018-PARK, Class A,
4.091% VRN 8/10/38 (a) (b)		620,000		662,548
CALI Mortgage Trust, Series 2019-101C, Class A
3.957% 3/10/39 (a)		415,000		436,509
CGRBS Commercial Mortgage Trust, Series 2013-VN05, Class A
3.369% 3/13/35 (a)		420,000		425,842
Citigroup Commercial Mortgage Trust, Series 2013-375P, Class A
3.251% 5/10/35 (a)		340,000		343,755
COMM Mortgage Trust
Series 2016-787S, Class A,
3.545% 2/10/36 (a)		340,000		347,153
Series 2013-300P, Class A1,
4.353% 8/10/30 (a)		325,000		345,234
Core Industrial Trust, Series 2015-CALW, Class A
3.040% 2/10/34 (a)		412,672		415,253
Core Industrial Trust 2015-TEXW, Series 2015-TEXW, Class A
3.077% 2/10/34 (a)	$	416,849	$	420,647
GS Mortgage Securities Corp Trust, Series 2012-ALOH, Class A
3.551% 4/10/34 (a)		370,000		378,122
Morgan Stanley Bank of America Merrill Lynch Trust, Series 2012-C6, Class A4
2.858% 11/15/45		1,547,432		1,548,923
Morgan Stanley Capital I Trust, Series 2015-420, Class A
3.727% 10/12/50 (a)		400,000		409,321
RBS Commercial Funding, Inc. Trust, Series 2013-GSP, Class A,
3.834% VRN 1/15/32 (a) (b)		330,000		342,951
SFAVE Commercial Mortgage Securities Trust, Series 2015-5AVE, Class A1,
3.872% VRN 1/05/43 (a) (b)		370,000		371,055
Wells Fargo Commercial Mortgage Trust, Series 2010-C1, Class A2
4.393% 11/15/43 (a)		500,000		508,645
				6,955,958

 121

	Principal Amount		Value
Home Equity ABS — 0.9%
Bear Stearns I Trust, Series 2006-HE1, Class 1M1, 1 mo. USD LIBOR + 0.410%
2.896% FRN 12/25/35		153,792		153,732
Citigroup Mortgage Loan Trust, Inc., Series 2006-HE2, Class M1, 1 mo. USD LIBOR + 0.290%,
2.776% FRN 8/25/36		2,400,000		2,345,818
Wells Fargo Home Equity Trust, Series 2004-2, Class M3, 1 mo. USD LIBOR + 1.050%
3.536% FRN 10/25/34		1,135,123		1,129,960
				3,629,510
Other ABS — 2.7%
AIMCO CLO, Series 2014-AA, Class AR, 3 mo. USD LIBOR + 1.100%
3.861% FRN 7/20/26 (a)		266,508		266,501
Countrywide Asset-Backed Certificates, Series 2006-15, Class A3,
4.672% VRN 10/25/46 (b)		927,148		895,256
Dryden XXVI Senior Loan Fund, Series 2013-26A, Class AR,
3.687% FRN 4/15/29 (a) (b)		975,000		965,486
First Frankin Mortgage Loan Trust, Series 2005-FF7, Class M2, 1 mo. USD LIBOR + 0.470%
2.956% FRN 7/25/35		133,997		133,893

The accompanying notes are an integral part of the portfolio of investments.

 122

	Principal Amount		Value
LCM XXI LP, Series 21A, Class AR,
3.641% FRN 4/20/28 (a) (b)	$	740,000	$	734,958
Madison Park Funding XXX Ltd., Series 2018-30A, Class A,
3.537% FRN 4/15/29 (a) (b)		750,000		736,873
Magnetite VII Ltd., Series 2012-7A, Class A1R2,
3.587% FRN 1/15/28 (a) (b)		1,000,000		986,018
Magnetite XXI Ltd., Series 2019-21A, Class A,
3.909% FRN 4/20/30 (a) (b)		200,000		200,020
Morgan Stanley Capital I, Inc. Trust, Series 2006-HE1, Class A4, 1 mo. USD LIBOR + 0.290%
2.776% FRN 1/25/36		2,003,276		1,963,855
Saxon Asset Securities Trust
Series 2007-2, Class A2C, 1 mo. USD LIBOR + 0.240%
2.726% FRN 5/25/47		2,295,585		1,912,160
Series 2005-1, Class M1, 1 mo. USD LIBOR + 0.690%
3.131% FRN 5/25/35		664,281		656,159
TCI-Flatiron CLO Ltd., Series 2016-1A, Class AR, 3.733% FRN 7/17/28 (a) (b)		225,000		224,913
Voya CLO Ltd., Series 2014-3A, Class A1R,
3.491% FRN 7/25/26 (a) (b)		746,490		743,035
				10,419,127
Student Loans ABS — 4.2%
Access Group, Inc., Series 2015-1, Class A, 1 mo. USD LIBOR + .700%
3.190% FRN 7/25/56 (a)		662,214		644,017
Collegiate Funding Services Education Loan Trust, Series 2005-A, Class A4, 3 mo. USD LIBOR + 0.200%
2.797% FRN 3/28/35		1,500,000		1,448,275
Navient Student Loan Trust, Series 2018-3A, Class A3,
3.286% FRN 3/25/67 (a) (b)		630,000		622,358
Nelnet Student Loan Trust, Series 2015-1A, Class A, 1 mo. USD LIBOR + 0.590%
3.076% FRN 4/25/46 (a)		1,193,108		1,182,517
Pennsylvania Higher Education Assistance Agency, Series 2013-3A, Class A, 1 mo. USD LIBOR + 0.750%
3.236% FRN 11/25/42 (a)		1,064,690		1,067,982
SLC Student Loan Trust, Series 2006-2, Class A6, 3 mo. USD LIBOR + 0.160%
2.771% FRN 9/15/39		2,300,000		2,201,209
SLM Student Loan Trust
Series 2012-7, Class A3, 1 mo. USD LIBOR + 0.650%
3.136% FRN 5/26/26	$	933,849	$	919,579
Series 2012-2, Class A, 1 mo. USD LIBOR + 0.700%
3.186% FRN 1/25/29		1,069,921		1,052,717
Series 2008-1, Class A4, 3 mo. USD LIBOR + 0.650%
3.421% FRN 1/25/22		891,224		884,873
Series 2012-1, Class A3, 1 mo. USD LIBOR + 0.950%
3.436% FRN 9/25/28		910,466		907,197
Series 2008-6, Class A4, 3 mo. USD LIBOR + 1.100%
3.871% FRN 7/25/23		1,394,256		1,403,415
Series 2008-9, Class A, 3 mo. USD LIBOR + 1.500%
4.271% FRN 4/25/23		1,150,512		1,163,663
Series 2008-5, Class B, 3 mo. USD LIBOR + 1.850%
4.621% FRN 7/25/73		700,000		710,361
Series 2008-9, Class B, 3 mo. USD LIBOR + 2.250%
5.021% FRN 10/25/83		1,430,000		1,465,480
SLM Student Loan Trust 2007-7, Series 2007-7, Class A4, 3 mo. USD LIBOR + 0.330%
3.101% FRN 1/25/22		957,966		940,928
				16,614,571

 123

	Principal Amount		Value
WL Collateral CMO — 5.2%
Alternative Loan Trust, Series 2005-31, Class 2A1, 1 mo. USD LIBOR + 0.300%
2.786% FRN 8/25/35		1,735,001		1,687,403
American Home Mortgage Investment Trust, Series 2005-1, Class 6A, 6 mo. USD LIBOR + 2.000%
4.704% FRN 6/25/45		1,314,524		1,333,001
Banc of America Funding Trust, Series 2016-R1, Class A1,
2.500% VRN 3/25/40 (a) (b)		1,035,742		1,011,119
Chase Mortgage Finance Trust, Series 2007-A1, Class 11A4,
4.100% VRN 3/25/37 (b)		515,237		504,271
Citigroup Mortgage Loan Trust, Series 2005-11, Class A2A, 1 year CMT + 2.400%
4.820% FRN 10/25/35		466,240		473,542
CSMC Trust, Series 2018-RPL9, Class A,
3.850% VRN 9/25/57 (a) (b)		1,891,665		1,938,315

The accompanying notes are an integral part of the portfolio of investments.

 124

	Principal Amount		Value
First Horizon Mortgage Pass-Through Trust, Series 2005-AR5, Class 2A1, 4.671% VRN 11/25/35 (b)	$	580,309	$	548,698
GS Mortgage-Backed Securities Trust 2018-RPL1, Series 2018-RPL1, Class A1A 3.750% 10/25/57 (a)		1,745,514		1,722,212
HarborView Mortgage Loan Trust, Series 2006-10, Class 1A1A, 1 mo. USD LIBOR + 0.200% 2.682% FRN 11/19/36		2,009,573		1,766,071
Impac CMB Trust, Series 2005-1, Class 1A1, 1 mo. USD LIBOR + 0.520% 3.006% FRN 4/25/35		1,179,323		1,131,425
IndyMac Index Mortgage Loan Trust Series 2006-AR27, Class 1A3, 1 mo. USD LIBOR + 0.270% 2.756% FRN 10/25/36		1,949,236		1,336,499
Series 2005-AR19, Class A1, 3.863% VRN 10/25/35 (b)		1,022,457		963,448
Morgan Stanley Resecuritization Trust, Series 2014-R9, Class 3A, 12 mo. MTA + 0.840% 3.172% FRN 11/26/46 (a)		789,407		771,451
Nomura Asset Acceptance Corp. Alternative Loan Trust, Series 2005-AR1, Class M1, 1 mo. USD LIBOR + 1.070% 3.556% FRN 2/25/35		1,742,901		1,688,425
Washington Mutual Mortgage Pass-Through Certificates Series 2005-AR13, Class A1A1, 1 mo. USD LIBOR + 0.290% 2.776% FRN 10/25/45		916,460		902,923
Series 2005-AR2, Class 2A21, 1 mo. USD LIBOR + 0.330% 2.816% FRN 1/25/45		887,226		865,349
Series 2006-1 Class 3A2, 5.750% 2/25/36		924,137		869,090
Wells Fargo Mortgage Backed Securities Trust Series 2006-AR8, Class 3A1, 5.005% VRN 4/25/36 (b)		728,141		729,949
Series 2004-DD, Class 2A6, 5.007% VRN 1/25/35 (b)		153,020		152,676
				20,395,867
TOTAL NON-U.S. GOVERNMENT AGENCY OBLIGATIONS (Cost $57,043,547)				58,015,033
SOVEREIGN DEBT OBLIGATIONS — 0.1%
Oman Government International Bond 5.625% 1/17/28 (a)	$	200,000	$	187,452
Russian Foreign Bond 4.750% 5/27/26 (d)		200,000		206,000
				393,452
TOTAL SOVEREIGN DEBT OBLIGATIONS (Cost $385,300)				393,452
U.S. GOVERNMENT AGENCY OBLIGATIONS AND INSTRUMENTALITIES — 30.0%
Collateralized Mortgage Obligations — 2.5%
Federal Home Loan Mortgage Corp. Series 4818, Class CA 3.000% 4/15/48		993,047		988,989
Federal Home Loan Mortgage Corp. Multifamily Structured Pass — Through Certificates Series S8FX, Class A2 3.291% 3/25/27		1,775,000		1,806,014
Federal Home Loan Mortgage Corp. Multifamily Structured Pass Through Certificates Series K158, Class A3, 3.900% 10/25/33		785,000		842,960
Series 4846, Class PA, 4.000% 6/15/47		1,111,312		1,162,612
Federal Home Loan Mortgage Corp. REMICS Series 4639, Class HZ 2.750% 4/15/53		1,430,447		1,416,941
Federal National Mortgage Association Series 2018-57, Class QA, 3.500% 5/25/46		1,250,722		1,278,879
Series 2018-55, Class PA, 3.500% 1/25/47		724,534		740,321
Government National Mortgage Association Series 2018-124, Class NW, 3.500% 9/20/48		828,334		846,009
3.500% 2/20/49		848,935		866,174
				9,948,899

 125

	Principal Amount		Value
Pass-Through Securities — 27.5%
Federal Home Loan Mortgage Corp. Pool #V61427 2.500% 12/01/31		409,273		407,684
Pool #G16598 2.500% 12/01/31		1,580,971		1,574,834
Pool #G18592 3.000% 3/01/31		534,803		540,878
Pool #G18627 3.000% 1/01/32		1,594,361		1,610,974
Pool #G08710 3.000% 6/01/46		373,557		372,302
Pool #G08715 3.000% 8/01/46		2,862,064		2,852,451
Pool #G08726 3.000% 10/01/46		2,732,957		2,722,924
Pool #G08732 3.000% 11/01/46		962,321		958,788

The accompanying notes are an integral part of the portfolio of investments.

 126

	Principal Amount		Value
Pool #G08737 3.000% 12/01/46	$	347,194	$	345,919
Pool #G08741 3.000% 1/01/47		2,410,460		2,401,611
Pool #G08791 3.000% 12/01/47		927,086		923,393
Pool #G08795 3.000% 1/01/48		730,934		728,022
Pool #G18713 3.500% 11/01/33		597,766		612,144
Pool #G07848 3.500% 4/01/44		2,386,964		2,455,824
Pool #G60023 3.500% 4/01/45		2,465,237		2,532,503
Pool #G08711 3.500% 6/01/46		1,452,884		1,477,999
Pool #G67700 3.500% 8/01/46		1,364,847		1,398,676
Pool #G08716 3.500% 8/01/46		2,022,784		2,057,749
Pool #G08722 3.500% 9/01/46		349,990		356,040
Pool #G08742 3.500% 1/01/47		1,428,355		1,453,045
Pool #G67703 3.500% 4/01/47		1,956,126		2,002,776
Pool #G08757 3.500% 4/01/47		505,944		514,374
Pool #G67706 3.500% 12/01/47		1,861,870		1,905,109
Pool #G67707 3.500% 1/01/48		4,346,504		4,452,878
Pool #G08800 3.500% 2/01/48		184,729		187,634
Pool #G67710 3.500% 3/01/48		2,866,274		2,923,882
Pool #G67708 3.500% 3/01/48		3,227,096		3,296,998
Pool #G08816 3.500% 6/01/48		2,055,128		2,085,515
Pool #G61556 3.500% 8/01/48		1,449,304		1,479,791
Pool #G60344 4.000% 12/01/45		1,595,985		1,667,587
Pool #G67711 4.000% 3/01/48		1,814,514		1,897,053
Pool #G67713 4.000% 6/01/48		1,865,371		1,946,726
Pool #G67718 4.000% 1/01/49		1,798,191		1,873,244
Pool #G08843 4.500% 10/01/48		950,479		993,192
Pool #G08833 5.000% 7/01/48		528,688		560,521
Pool #G08844 5.000% 10/01/48		567,175		600,882
Federal National Mortgage Association Pool #AM2808 2.700% 3/01/23		375,000		376,872
Pool #AL6829 2.964% 5/01/27		1,114,576		1,114,742
Pool #MA1607 3.000% 10/01/33		666,365		674,169
Pool #AM9188 3.120% 6/01/35		780,000		757,797
Pool #FN0039 3.201% 9/01/27		776,471		794,471
Pool #AN7345 3.210% 11/01/37		1,020,757		1,010,676
Pool #AN4431 3.220% 1/01/27		805,000		825,295
Pool #AM9623 3.340% 7/01/30		755,000		775,363
Pool #AB4262 3.500% 1/01/32		672,012		690,531
Pool #MA1512 3.500% 7/01/33		309,332		317,759
Pool #MA1148 3.500% 8/01/42		2,178,529		2,220,863
Pool #CA0996 3.500% 1/01/48		358,398		365,698
Pool #MA3305 3.500% 3/01/48		130,985		132,998
Pool #BL1132 3.730% 1/01/29		920,000		971,739
Pool #BL0242 3.820% 11/01/30		1,000,000		1,058,886
Pool #466960 3.890% 12/01/20		1,083,837		1,104,193
Pool #MA1146 4.000% 8/01/42		984,581		1,018,752
Pool #MA3027 4.000% 6/01/47		1,110,059		1,149,279
Pool #AS9830 4.000% 6/01/47		1,133,125		1,173,868
Pool #AS9972 4.000% 7/01/47		989,540		1,025,120
Pool #931504 4.500% 7/01/39		95,276		101,553
Pool #CA1710 4.500% 5/01/48		2,440,468		2,552,445
Pool #CA1711 4.500% 5/01/48		816,241		853,693
Pool #CA2208 4.500% 8/01/48		1,587,744		1,657,245
Pool #986268 5.000% 7/01/38	$	1,562	$	1,687
Pool #AD6374 5.000% 5/01/40		27,085		29,175
Pool #AI2733 5.000% 5/01/41		209,722		225,514
Pool #977014 5.500% 5/01/38		36,397		39,660
Pool #985524 5.500% 6/01/38		29,151		31,765
Pool #988578 5.500% 8/01/38		164,359		179,094
Pool #995482 5.500% 1/01/39		137,048		149,156

 127

	Principal Amount		Value
Federal National Mortgage Association TBA Pool #5650 3.000% 3/02/33 (e)		50,000		50,438
Pool #29986 5.000% 7/30/48 (e)		700,000		739,211
Government National Mortgage Association II Pool #MA4126 3.000% 12/20/46		2,329,435		2,343,217
Pool #MA4718 3.000% 9/20/47		269,930		271,190
Pool #MA4836 3.000% 11/20/47		2,137,814		2,147,790
Pool #MA3521 3.500% 3/20/46		930,530		952,999
Pool #MA3597 3.500% 4/20/46		289,155		296,137
Pool #MA3663 3.500% 5/20/46		435,597		445,843
Pool #MA3937 3.500% 9/20/46		350,860		359,113
Pool #MA4127 3.500% 12/20/46		1,181,846		1,209,275
Pool #MA4262 3.500% 2/20/47		1,410,920		1,443,666
Pool #MA4382 3.500% 4/20/47		394,921		403,840
Pool #MA4719 3.500% 9/20/47		531,900		543,580
Pool #MA4837 3.500% 11/20/47		1,056,817		1,080,024
3.500% 12/20/47		3,875,867		3,960,977
Pool #MA4653 4.000% 8/20/47		211,170		218,464
Pool #MA4838 4.000% 11/20/47		923,318		955,211
Pool #MA4901 4.000% 12/20/47		415,891		430,256
Pool #MA5078 4.000% 3/20/48		1,773,419		1,832,459
Pool #MA5466 4.000% 9/20/48		2,042,077		2,109,423
Pool #MA5399 4.500% 8/20/48		4,389,982		4,559,697
Pool #MA3666 5.000% 5/20/46		263,104		281,364
Pool #MA4199 5.000% 1/20/47		279,007		298,371
Pool #MA4454 5.000% 5/20/47		566,372		597,184
Pool #MA4722 5.000% 9/20/47		754,094		791,820
				107,873,529
TOTAL U.S. GOVERNMENT AGENCY OBLIGATIONS AND INSTRUMENTALITIES (Cost $117,776,742)				117,822,428
U.S. TREASURY OBLIGATIONS — 25.1%
U.S. Treasury Bonds & Notes — 25.1%
U.S. Treasury Bond 3.000% 2/15/49		26,275,000		27,229,111
U.S. Treasury Inflation Index 0.125% 7/15/24		63,593		62,789
0.375% 7/15/25		891,442		890,633
0.750% 7/15/28		1,328,432		1,357,606
U.S. Treasury Note 2.125% 3/31/24		23,230,000		23,100,602
2.375% 2/29/24		9,240,000		9,300,637

The accompanying notes are an integral part of the portfolio of investments.

 128

	Principal Amount		Value
2.500% 1/31/21	$	15,055,000	$	15,107,221
2.500% 2/28/21		9,275,000		9,311,593
2.500% 1/31/24		2,210,000		2,235,674
2.625% 2/15/29		10,000,000		10,184,375
				98,780,241
TOTAL U.S. TREASURY OBLIGATIONS (Cost $97,406,014)				98,780,241
TOTAL BONDS & NOTES (Cost $382,942,306)				386,217,488

	Number of Shares
MUTUAL FUNDS — 0.3%
Diversified Financial Services — 0.3%
State Street Navigator Securities Lending Prime Portfolio (f)		1,024,135	1,024,135
TOTAL MUTUAL FUNDS (Cost $1,024,135)			1,024,135
TOTAL LONG-TERM INVESTMENTS (Cost $383,966,441)			387,241,623

	Principal Amount
SHORT-TERM INVESTMENTS — 5.6%
Commercial Paper — 0.2%
Ford Motor Credit Co. 3.181% 4/04/19 (a)	$	815,000		814,587
Repurchase Agreement — 4.4%
Fixed Income Clearing Corp., Repurchase Agreement, dated 3/29/19, 1.250%, due 4/01/19 (g)		17,107,767		17,107,767
U.S. Treasury Bill — 1.0%
U.S. Treasury Bill 0.000% 5/07/19		3,499,000		3,490,651
0.000% 6/20/19 (h)		531,000		528,211
				4,018,862
TOTAL SHORT-TERM INVESTMENTS (Cost $21,940,180)				21,941,216
TOTAL INVESTMENTS — 104.2% (Cost $405,906,621) (i)				409,182,839
Other Assets/(Liabilities) — (4.2)%				(16,363,404	)
NET ASSETS — 100.0%			$	392,819,435

Abbreviation Legend

ABS Asset-Backed Security

CLO Collateralized Loan Obligation

CMO Collateralized Mortgage Obligation

CMT Constant Maturity Treasury Index

FRN Floating Rate Note

MBS Mortgage-Backed Security

MTA Monthly Treasury Average Index

STEP Step Up Bond

TBA To Be Announced

VRN Variable Rate Note

WL Whole Loan

 129

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

(a) Securities exempt from registration under rule 144A of the Securities Act of 1933. These securities may be resold in transactions exempt from registration, normally to qualified institutional buyers. At March 31, 2019, these securities amounted to a value of $37,901,856 or 9.65% of net assets.

(b) Certain variable rate securities are not based on a published reference rate and spread but are determined by the issuer or agent and are based on current market conditions. These securities do not indicate a reference rate and spread in their description above. The rates shown are the current interest rates at March 31, 2019.

(c) Denotes all or a portion of security on loan. The total value of securities on loan as of March 31, 2019, was $1,003,149 or 0.26% of net assets. Total securities on loan may not correspond with the amounts identified in the Portfolio of Investments because pending sales may be in the process of recall from the brokers. (Note 2).

(d) Security exempt from registration under Regulation S of the Securities Act of 1933, which exempts from registration securities offered and sold outside the United States. Security may not be offered or sold in the United States except pursuant to an exemption from, or in a transaction not subject to, the registration requirements of the Securities Act of 1933. At March 31, 2019, these securities amounted to a value of $415,536 or 0.11% of net assets.

(e) A portion of this security is purchased on a when-issued, delayed-delivery or forward commitment basis. (Note 2).

(f) Represents investment of security lending collateral. (Note 2).

(g) Maturity value of $17,109,549. Collateralized by U.S. Government Agency obligations with a rate of 1.875%, maturity date of 3/31/22, and an aggregate market value, including accrued interest, of $17,451,873.

(h) A portion of this security is pledged/held as collateral for open futures contracts. (Note 2).

(i) See Note 3 for aggregate cost for federal tax purposes.

The accompanying notes are an integral part of the portfolio of investments.

 130

Futures contracts at March 31, 2019:

	Expiration Date	Number of Contracts		Notional Amount			Value/Net Unrealized Appreciation/ (Depreciation)
Long
U.S. Treasury Note 2 Year	6/28/19		137	$	29,078,359		$	115,485
U.S. Treasury Note 5 Year	6/28/19		434		49,800,763			468,643
							$	584,128
Short
Euro-BOBL	6/06/19		61	$	(9,035,815	)	$	(74,525	)

Swap agreements at March 31, 2019:

Counterparty	Currency		Notional Amount		Expiration Date	Payment Frequency	Payments Made by Fund	Payments Received by Fund	Unrealized Appreciation (Depreciation)			Premium Received (Paid)		Value
Interest Rate Swaps
Centrally Cleared Swaps
		USD		20,975,000	11/21/21	Quarterly/Semi-Annually	3-Month USD - LIBOR - BBA	Fixed 3.071%	$	333,801		$	-	$	333,801
		USD		8,620,000	11/21/24	Semi-Annually/ Quarterly	Fixed 3.082%	3-Month USD - LIBOR - BBA		(325,565	)		-		(325,565	)
									$	8,236		$	-	$	8,236

Collateral for swap agreements held by Citibank N.A. amounted to $73,381 in cash at March 31, 2019.

Currency Legend

USD U.S. Dollar

The accompanying notes are an integral part of the portfolio of investments.

 131

Notes to Portfolio of Investments (Unaudited)

1. The Funds

MML Series Investment Fund (the “Trust”) is registered under the Investment Company Act of 1940, as amended (the “1940 Act”), as an open-end management investment company. The Trust is organized under the laws of the Commonwealth of Massachusetts as a Massachusetts business trust pursuant to an Agreement and Declaration of Trust dated December 19, 1984, as restated May 14, 1993, and further amended and restated as of December 15, 2011, as it may be further amended from time to time. The Trust consists of the following series (each individually referred to as a “Fund” or collectively as the “Funds”):

MML Aggressive Allocation Fund (“Aggressive Allocation Fund”)

MML American Funds Core Allocation Fund (“MML American Funds Core Allocation Fund”)

MML American Funds Growth Fund (“MML American Funds Growth Fund”)

MML American Funds International Fund (“MML American Funds International Fund”)

MML Balanced Allocation Fund (“Balanced Allocation Fund”)

MML Blue Chip Growth Fund (“Blue Chip Growth Fund”)

MML Conservative Allocation Fund (“Conservative Allocation Fund”)

MML Equity Income Fund (“Equity Income Fund”)

MML Equity Index Fund (“Equity Index Fund”)

MML Focused Equity Fund (“Focused Equity Fund”)

MML Foreign Fund (“Foreign Fund”)

MML Fundamental Growth Fund (“Fundamental Growth Fund”)

MML Fundamental Value Fund (“Fundamental Value Fund”)

MML Global Fund (“Global Fund”)

MML Growth Allocation Fund (“Growth Allocation Fund”)

MML Growth & Income Fund (“Growth & Income Fund”)

MML Income & Growth Fund (“Income & Growth Fund”) 

MML International Equity Fund (“International Equity Fund”)

MML Large Cap Growth Fund (“Large Cap Growth Fund”)

MML Managed Volatility Fund (“Managed Volatility Fund”)

MML Mid Cap Growth Fund (“Mid Cap Growth Fund”)

MML Mid Cap Value Fund (“Mid Cap Value Fund”)

MML Moderate Allocation Fund (“Moderate Allocation Fund”)

MML Small Cap Growth Equity Fund (“Small Cap Growth Equity Fund”)

MML Small Company Value Fund (“Small Company Value Fund”)

MML Small/Mid Cap Value Fund (“Small/Mid Cap Value Fund”)

MML Total Return Bond Fund (“Total Return Bond Fund”)

The Trust makes shares of the Funds available for the investment of assets of various separate investment accounts established by Massachusetts Mutual Life Insurance Company (“MassMutual”) and by life insurance companies which are subsidiaries of MassMutual. Shares of the Trust are not offered to the general public. MassMutual, MML Bay State Life Insurance Company, C.M. Life Insurance Company, and the Allocation Funds (as defined below), which are “funds of funds” series of the Trust, are the record owners of all of the outstanding shares of the Funds.

Each share class of a Fund represents an interest in the same portfolio of assets. The principal difference among the classes is the level of service and administration fees, and shareholder and distribution service expenses borne by the classes. Because each class will have different fees and expenses, performance and share prices will vary between the classes. The classes of shares are offered to different types of investors, as outlined in the Funds’ Prospectus.

The Conservative Allocation Fund, Balanced Allocation Fund, Moderate Allocation Fund, Growth Allocation Fund, and Aggressive Allocation Fund (the “Allocation Funds”) invest their investable assets in shares of series of the Trust and MML Series Investment Fund II (advised by MML Investment Advisers, LLC (“MML Advisers”), a wholly-owned subsidiary of MassMutual), Oppenheimer Funds (advised by OFI Global Asset Management, Inc. (“OFI Global Asset Management”), a majority-owned, indirect subsidiary of MassMutual), and non-affiliated funds (together, the “MML Underlying Funds”).

MML American Funds Growth Fund and MML American Funds International Fund (each a “Feeder Fund,” collectively the “Feeder Funds”) invest all of their assets in Class 1 shares of the Growth and International Funds, respectively, each a series of the American Funds Insurance Series (each a “Master Fund,” collectively the “Master Funds”). Each Master Fund is an open-end investment company and organized as a Massachusetts business trust. Each Feeder Fund has an investment objective that is consistent with its corresponding Master Fund. Each Master Fund intends to comply with the requirements under Subchapter M of the Internal Revenue Code, as amended (the “Code”), applicable to mutual funds and intends to distribute substantially all of its taxable income and capital gains to shareholders, which includes the applicable Feeder Fund, to qualify as a regulated investment company. The performance of the Feeder Funds is directly affected by the performance of the Master Funds. The MML American Funds Core Allocation Fund invests all of its investable assets in shares of various series of American Funds Insurance Series, which are managed by Capital Research and Management Company (together, the “American Underlying Funds” and collectively with the MML Underlying Funds, the “Underlying Funds”).

132

2. Significant Accounting Policies

The following is a summary of significant accounting policies followed consistently by each Fund in the preparation of the financial statements in conformity with accounting principles generally accepted in the United States of America (“generally accepted accounting principles”). The preparation of the financial statements in accordance with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts and disclosures in the financial statements. Actual results could differ from those estimates.

Each Fund is an investment company and accordingly follows the investment company accounting and reporting guidance of the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification Topic 946, Financial Services – Investment Companies.

Investment Valuation

The net asset value of each Fund’s shares is determined once daily as of the close of regular trading on the New York Stock Exchange (“NYSE”), on each day the NYSE is open for trading (a “business day”). The NYSE normally closes at 4:00 p.m. Eastern Time, but may close earlier on some days. If the NYSE is scheduled to close early, the business day will be considered to end as of the time of the NYSE’s scheduled close. A Fund will not treat an intraday disruption in NYSE trading or other event that causes an unscheduled closing of the NYSE as a close of business of the NYSE for these purposes and will instead fair value securities in accordance with procedures approved annually by the Board of Trustees (“Trustees”), and under the general oversight of the Trustees. On holidays and other days when the NYSE is closed, each Fund’s net asset value generally is not calculated and the Funds do not anticipate accepting buy or sell orders. However, the value of each Fund’s assets may still be affected on such days to the extent that a Fund or an Underlying Fund or Master Fund holds foreign securities that trade on days that foreign securities markets are open.

The net asset value of each of the Aggressive Allocation Fund, MML American Funds Core Allocation Fund, MML American Funds Growth Fund, MML American Funds International Fund, Balanced Allocation Fund, Conservative Allocation Fund, Growth Allocation Fund, and Moderate Allocation Fund is based upon the net asset value(s) of its corresponding Master Fund or Underlying Funds. Shares of the Master Fund and Underlying Funds are valued at their closing net asset values as reported on each business day.

The Prospectuses and Statements of Additional Information (“SAIs”) for the Underlying Funds and Master Funds, as applicable, explain the valuation methods for the Underlying Funds and Master Funds, including the circumstances under which the Underlying Funds or Master Funds, may use fair value pricing and the effects of doing so. Such Prospectuses and SAIs are available on the Securities and Exchange Commission’s (“SEC’s”) EDGAR database on its website at http://www.sec.gov.

Equity securities and derivative contracts that are actively traded on a national securities exchange or contract market are valued on the basis of information furnished by a pricing service, which provides the last reported sale price, or, in the case of futures contracts, the settlement price, for securities or derivatives listed on the exchange or contract market or the official closing price on the NASDAQ National Market System (“NASDAQ System”), or in the case of over-the-counter (“OTC”) securities for which an official closing price is unavailable or not reported on the NASDAQ System, the last reported bid price. Portfolio securities traded on more than one national securities exchange are valued at the last price at the close of the exchange representing the principal market for such securities. Debt securities are valued on the basis of valuations furnished by a pricing service, which generally determines valuations taking into account factors such as institutional-size trading in similar securities, yield, quality, coupon rate, maturity, type of issue, trading characteristics, and other market data. Shares of other open-end mutual funds are valued at their closing net asset values as reported on each business day.

Investments for which market quotations are readily available are marked to market daily based on those quotations. Market quotations may be provided by third-party vendors or market makers, and may be determined on the basis of a variety of factors, such as broker quotations, financial modeling, and other market data, such as market indexes and yield curves, counterparty information, and foreign exchange rates. U.S. Government and agency securities may be valued on the basis of market quotations or using a model that may incorporate market observable data such as reported sales of similar securities, broker quotes, yields, bids, offers, quoted market prices, and reference data. The fair values of OTC derivative contracts, including forward, swap, and option contracts related to interest rates, foreign currencies, credit standing of reference entities, equity prices, or commodity prices, may be based on market quotations or may be modeled using a series of techniques, including simulation models, depending on the contract and the terms of the transaction. The fair values of asset-backed securities and mortgage-backed securities are estimated based on models that consider the estimated cash flows of each debt tranche of the issuer, established benchmark yield, and estimated tranche-specific spread to the benchmark yield based on the unique attributes of the tranche, including, but not limited to, prepayment speed assumptions and attributes of the collateral. Restricted securities are generally valued at a discount to similar publicly traded securities.

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Investments for which market quotations are not available or for which a pricing service or vendor does not provide a value, or for which such market quotations or values are considered by the investment adviser or subadviser to be unreliable (including, for example, certain foreign securities, thinly-traded securities, certain restricted securities, certain initial public offerings, or securities whose values may have been affected by a significant event) are stated at fair valuations determined in good faith by the Funds’ Valuation Committee¹ in accordance with procedures approved annually by the Trustees, and under the general oversight of the Trustees. The Funds’ Valuation Committee employs various methods to determine fair valuations including a regular review of significant inputs and assumptions and review of any related market activity. The Funds’ Valuation Committee reports to the Trustees at its regularly scheduled meetings. It is possible that fair value prices will be used by the Funds to a significant extent. The value determined for an investment using the Funds’ fair value procedures may differ from recent market prices for the investment and may be significantly different from the value realized upon the sale of such investment.

The Funds and certain Underlying Funds or Master Funds may invest in securities that are traded principally in foreign markets and that trade on weekends and other days when the Funds do not price their shares. As a result, the values of the Funds’ portfolio securities may change on days when the prices of the Funds’ shares are not calculated. The prices of the Funds’ shares will reflect any such changes when the prices of the Funds’ shares are next calculated, which is the next business day. The Funds may use fair value pricing more frequently for securities primarily traded in foreign markets because, among other things, most foreign markets close well before the Funds value their securities. The earlier close of these foreign markets gives rise to the possibility that significant events, including broad market moves, may have occurred in the interim. The Funds’ investments may be priced based on fair values provided by a third-party vendor, based on certain factors and methodologies applied by such vendor, in the event that there is movement in the U.S. market, between the close of the foreign market and the time the Funds calculate their net asset values. All assets and liabilities expressed in foreign currencies are converted into U.S. dollars at the mean between the buying and selling rates of such currencies against the U.S. dollar at the end of each business day.

¹ The Valuation Committee consists of the President, Treasurer, Assistant Treasurers, Vice Presidents (except for the CCO), Secretary, and Assistant Secretaries of the Trust, as well as such other members as the Trustees may from time to time designate. The Valuation Committee reviews and determines the fair valuation of portfolio securities and the Funds’ pricing procedures in general.

For investments in equity or debt issued by privately held companies or funds (“Private Company” or collectively, the “Private Companies”) and any other investments fair valued using significant unobservable inputs, as described below, the fair valuation approaches used by third party service providers and/or the Funds’ subadvisers utilize one or a combination of, but not limited to, the following inputs:

Market approach: (i) recent market transactions, including subsequent rounds of financing, in the underlying investment or comparable issuers; (ii) recapitalizations and other transactions across the capital structure; and (iii) market multiples of comparable issuers.

Income approach: (i) future cash flows discounted to present value and adjusted as appropriate for liquidity, credit, and/or market risks; (ii) quoted prices for similar investments or assets in active markets; and (iii) other risk factors, such as interest rates, yield curves, volatilities, prepayment speeds, loss severities, credit risks, recovery rates, liquidation amounts, and/or default rates.

Cost approach: (i) audited or unaudited financial statements, investor communications, and financial or operational metrics issued by the Private Company; (ii) changes in the valuation of relevant indices or publicly traded companies comparable to the Private Company; (iii) relevant news and other public sources; and (iv) known secondary market transactions in the Private Company’s interests and merger or acquisition activity in companies comparable to the Private Company.

Investments in series of preferred stock issued by Private Companies are typically valued utilizing Market approach in determining the enterprise value of the company. Such investments often contain rights and preferences that differ from other series of preferred and common stock of the same issuer. Valuation techniques such as the current value method (“CVM”), an option pricing model (“OPM”), a probability weighted expected return model (“PWERM”), or a hybrid of those techniques are used in allocating enterprise value of the company, as deemed appropriate under the circumstances. The CVM allocates value among the various parts of a company’s capital structure assuming that the value of convertible preferred stock is represented by the most favorable claim the preferred stockholders have on the enterprise value as of the valuation date. The use of OPM and PWERM techniques involve a determination of the exit scenarios of the investment in order to appropriately allocate the enterprise value of the company among the various parts of its capital structure.

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The Private Companies are not subject to the public company disclosure, timing, and reporting standards as other investments held by a Fund. Typically, the most recently available information for a Private Company is as of a date that is earlier than the date a Fund is calculating its net asset value. This factor may result in a difference between the value of the investment and the price a Fund could receive upon the sale of the investment.

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. A three-tier hierarchy is utilized to maximize the use of observable market data inputs and minimize the use of unobservable inputs and to establish classification of fair value measurements for disclosure purposes. Inputs refer broadly to the assumptions that market participants would use in pricing the asset or liability, including assumptions about risk, for example, the risk inherent in a particular valuation technique used to measure fair value (such as a pricing model) and/or the risk inherent in the inputs to the valuation technique. Inputs may be observable or unobservable. Observable inputs are inputs that reflect the assumptions market participants would use in pricing the asset or liability and are developed based on market data obtained from sources independent of the reporting entity. Unobservable inputs are inputs that reflect the reporting entity’s own assumptions about the assumptions market participants would use in pricing the asset or liability and are developed based on the best information available in the circumstances. The three-tier hierarchy of inputs is summarized in the three broad Levels listed below. The inputs or methodology used for valuing investments are not necessarily an indication of the risk associated with investing in those investments and the determination of the significance of a particular input to the fair value measurement in its entirety requires judgment and consideration of factors specific to each security.

Level 1 – quoted prices (unadjusted) in active markets for identical investments that the Funds can access at the measurement date

The types of assets and liabilities categorized in Level 1 generally include actively traded domestic and certain foreign equity securities, derivatives actively traded on a national securities exchange (such as some warrants, rights, futures, and options), and shares of open-end mutual funds.

Level 2 – other significant observable inputs (including quoted prices for similar investments, interest rates, prepayment speeds, credit risk, etc.)

The types of assets and liabilities categorized in Level 2 generally include debt securities such as U.S. Government and agency securities, mortgage-backed securities, asset-backed securities, municipal obligations, sovereign debt obligations, bank loans, corporate bonds, and those securities valued at amortized cost; OTC derivatives such as swaps, options, swaptions, and forward foreign currency exchange contracts; broker quoted securities which may include brokers’ assumptions; and non-exchange traded equity securities and foreign equity securities traded on particular foreign exchanges that close before the Funds determine their net asset values.

Level 3 – significant unobservable inputs (including the Funds’ own assumptions in determining the fair value of investments)

The types of assets and liabilities categorized in Level 3 generally include securities for which prices, spreads, or any of the other aforementioned significant inputs are unobservable. Generally, securities whose trading has been suspended or that have been de-listed from their current primary trading exchange; securities in default or bankruptcy proceedings for which there is no current market quotation; and any securities acquired in a non-public offering for which there is no active market are categorized in Level 3.

The availability of observable inputs can vary from security to security and is affected by a wide variety of factors, including, for example, the type of security, whether the security is new and not yet established in the marketplace, the liquidity of markets, and other characteristics particular to the security. To the extent that valuation is based on models or inputs that are less observable or unobservable in the market, the determination of fair value requires more judgment. Accordingly, the degree of judgment exercised in determining fair value is greatest for instruments categorized in Level 3.

Changes in valuation techniques may result in transfers in or out of an investment’s assigned Level within the hierarchy. In addition, in periods of market dislocation, the observability of prices and inputs may be reduced for many instruments. This condition, as well as changes related to liquidity of investments, could cause a security to be reclassified between Level 1, Level 2, or Level 3.

In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, for disclosure purposes the level in the fair value hierarchy within which the fair value measurement falls is determined based on the lowest level input that is significant to the overall fair value measurement.

The Aggressive Allocation Fund, MML American Funds Core Allocation Fund, MML American Funds Growth Fund, MML American Funds International Fund, Balanced Allocation Fund, Conservative Allocation Fund, Growth Allocation Fund, and Moderate Allocation Fund characterized all investments at Level 1, as of March 31, 2019. The Fundamental Value Fund, Income & Growth Fund, and Small/Mid Cap Value Fund characterized all long-term investments at Level 1, and all short-term investments at Level 2, as of March 31, 2019. For each Fund noted in the preceding sentences, the level classification by major category of investments is the same as the category presentation in the Portfolio of Investments.

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The following is the aggregate value by input level, as of March 31, 2019, for the remaining Funds’ investments:

	Level 1		Level 2			Level 3			Total
Blue Chip Growth Fund
Asset Investments
Common Stock	$	388,379,538	$	9,283,680	*	$	775,038	**	$	398,438,256
Mutual Funds		713,465		-			-			713,465
Short-Term Investments		1,053		1,954,014			-			1,955,067
Total Investments	$	389,094,056	$	11,237,694		$	775,038		$	401,106,788

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	Level 1		Level 2			Level 3		Total
Equity Income Fund
Asset Investments
Common Stock	$	416,063,782	$	16,163,881	*	$	-	$	432,227,663
Preferred Stock		11,646,581		-			-		11,646,581
Corporate Debt		-		3,470,288			-		3,470,288
Mutual Funds		4,044,304		-			-		4,044,304
Short-Term Investments		1,051		9,928,233			-		9,929,284
Total Investments	$	431,755,718	$	29,562,402		$	-	$	461,318,120
Equity Index Fund
Asset Investments
Common Stock	$	660,860,068	$	-		$	-	$	660,860,068
Mutual Funds		128,304		-			-		128,304
Short-Term Investments		-		7,478,529			-		7,478,529
Total Investments	$	660,988,372	$	7,478,529		$	-	$	668,466,901
Asset Derivatives
Futures Contracts	$	186,294	$	-		$	-	$	186,294
Focused Equity Fund
Asset Investments
Common Stock	$	68,958,113	$	3,288,720	*	$	-	$	72,246,833
Short-Term Investments		-		1,569,435			-		1,569,435
Total Investments	$	68,958,113	$	4,858,155		$	-	$	73,816,268
Foreign Fund
Asset Investments
Common Stock*
Canada	$	6,602,881	$	-		$	-	$	6,602,881
Cayman Islands		4,643,824		9,138,079			-		13,781,903
China		-		8,499,307			-		8,499,307
Denmark		-		5,640,756			-		5,640,756
France		-		41,811,723			-		41,811,723
Germany		-		36,428,899			-		36,428,899
Hong Kong		-		8,157,350			-		8,157,350
Ireland		-		10,371,098			-		10,371,098
Israel		5,241,322		-			-		5,241,322
Italy		-		9,810,663			-		9,810,663
Japan		-		39,483,159			-		39,483,159
Luxembourg		-		5,625,496			-		5,625,496
Netherlands		4,233,881		12,042,006			-		16,275,887
Norway		-		3,188,453			-		3,188,453
Republic of Korea		3,265,579		11,288,121			-		14,553,700
Singapore		-		4,945,729			-		4,945,729
Switzerland		-		20,860,491			-		20,860,491
Taiwan		-		5,130,159			-		5,130,159
Thailand		-		4,014,465			-		4,014,465
United Kingdom		4,308,351		44,605,838			-		48,914,189
Mutual Funds		104,222		-			-		104,222
Short-Term Investments		-		5,419,457			-		5,419,457
Total Investments	$	28,400,060	$	286,461,249		$	-	$	314,861,309

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	Level 1		Level 2			Level 3		Total
Fundamental Growth Fund
Asset Investments
Common Stock	$	106,496,247	$	1,175,325	*	$	-	$	107,671,572
Short-Term Investments		-		1,031,702			-		1,031,702
Total Investments	$	106,496,247	$	2,207,027		$	-	$	108,703,274
Global Fund
Asset Investments
Common Stock*
Austria	$	-	$	812,185		$	-	$	812,185
Brazil		736,031		-			-		736,031
Canada		4,383,982		-			-		4,383,982
Cayman Islands		-		448,194			-		448,194
Denmark		-		1,597,572			-		1,597,572
France		-		23,815,369			-		23,815,369
Germany		-		9,380,963			-		9,380,963
Ireland		13,413,785		3,522,744			-		16,936,529
Israel		3,151,119		-			-		3,151,119
Japan		-		6,293,217			-		6,293,217
Mexico		618,817		-			-		618,817
Netherlands		1,050,299		5,034,306			-		6,084,605
Republic of Korea		-		1,832,840			-		1,832,840
Spain		-		2,798,543			-		2,798,543
Sweden		-		5,350,891			-		5,350,891
Switzerland		-		17,187,576			-		17,187,576
Thailand		-		465,154			-		465,154
United Kingdom		3,704,424		17,757,804			-		21,462,228
United States		104,793,187		-			-		104,793,187
Short-Term Investments		-		1,849,576			-		1,849,576
Total Investments	$	131,851,644	$	98,146,934		$	-	$	229,998,578
Growth & Income Fund
Asset Investments
Common Stock	$	133,841,314	$	7,193,949	*	$	-	$	141,035,263
Short-Term Investments		-		1,175,984			-		1,175,984
Total Investments	$	133,841,314	$	8,369,933		$	-	$	142,211,247
International Equity Fund
Asset Investments
Common Stock*
Australia	$	-	$	3,772,004		$	-	$	3,772,004
Canada		2,882,788		-			-		2,882,788
Cayman Islands		1,975,727		-			-		1,975,727
France		-		19,466,484			-		19,466,484
Germany		-		28,798,171			-		28,798,171
India		-		960,098			-		960,098
Indonesia		-		2,280,704			-		2,280,704
Ireland		6,053,962		-			-		6,053,962
Italy		-		6,002,271			-		6,002,271
Japan		-		8,880,168			-		8,880,168

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	Level 1			Level 2			Level 3			Total
International Equity Fund (Continued)
Asset Investments (Continued)
Common Stock* (Continued)
Mexico	$	1,468,768		$	-		$	-		$	1,468,768
Netherlands		-			13,234,243			-			13,234,243
Republic of Korea		-			4,970,713			-			4,970,713
South Africa		-			3,741,452			-			3,741,452
Sweden		-			11,626,697			-			11,626,697
Switzerland		-			15,222,738			-			15,222,738
Taiwan		-			2,127,983			-			2,127,983
United Kingdom		4,027,886			33,970,914			-			37,998,800
Mutual Funds		230,770			-			-			230,770
Short-Term Investments		-			4,196,450			-			4,196,450
Total Investments	$	16,639,901		$	159,251,090		$	-		$	175,890,991
Asset Derivatives
Forward Contracts	$	-		$	146,578		$	-		$	146,578
Liability Derivatives
Forward Contracts	$	-		$	(6,453	)	$	-		$	(6,453	)
Large Cap Growth Fund
Asset Investments
Common Stock	$	97,282,256		$	2,656,422		$	-		$	99,938,678
Short-Term Investments		-			628,619			-			628,619
Total Investments	$	97,282,256		$	3,285,041		$	-		$	100,567,297
Managed Volatility Fund
Asset Investments
Common Stock	$	153,803,341		$	-		$	-		$	153,803,341
Corporate Debt		-			-			-	+,**		-
Purchased Options		479,273			-			-			479,273
Short-Term Investments		-			3,212,712			-			3,212,712
Total Investments	$	154,282,614		$	3,212,712		$	-		$	157,495,326
Liability Derivatives
Written Options	$	(3,526,390	)	$	-		$	-		$	(3,526,390	)
Mid Cap Growth Fund
Asset Investments
Common Stock	$	438,179,114		$	-		$	1,307,593	**	$	439,486,707
Preferred Stock		-			-			3,327,527	**		3,327,527
Mutual Funds		1,580,003			-			-			1,580,003
Short-Term Investments		8,032,903			17,810,906			-			25,843,809
Total Investments	$	447,792,020		$	17,810,906		$	4,635,120		$	470,238,046
Mid Cap Value Fund
Asset Investments
Common Stock	$	378,959,608		$	23,538,593	*	$	-		$	402,498,201
Mutual Funds		12,760,776			-			-			12,760,776
Short-Term Investments		-			6,240,156			-			6,240,156
Total Investments	$	391,720,384		$	29,778,749		$	-		$	421,499,133

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	Level 1			Level 2			Level 3			Total
Mid Cap Value Fund (Continued)
Asset Derivatives
Forward Contracts	$	-		$	228,857		$	-		$	228,857
Liability Derivatives
Forward Contracts	$	-		$	(8,434	)	$	-		$	(8,434	)
Small Cap Growth Equity Fund
Asset Investments
Common Stock	$	195,174,873		$	-		$	229,901	**	$	195,404,774
Preferred Stock		-			-			382,917	**		382,917
Mutual Funds		5,323,645			-			-			5,323,645
Short-Term Investments		-			6,014,754			-			6,014,754
Total Investments	$	200,498,518		$	6,014,754		$	612,818		$	207,126,090
Small Company Value Fund
Asset Investments
Common Stock	$	95,579,116		$	-		$	-		$	95,579,116
Mutual Funds		954,570			-			-			954,570
Short-Term Investments		1,043			1,227,060			-			1,228,103
Total Investments	$	96,534,729		$	1,227,060		$	-		$	97,761,789
Total Return Bond Fund
Asset Investments
Bank Loans	$	-		$	1,087,936		$	-		$	1,087,936
Corporate Debt		-			105,344,415			-			105,344,415
Municipal Obligations		-			4,773,983			-			4,773,983
Non-U.S. Government Agency Obligations		-			58,015,033			-			58,015,033
Sovereign Debt Obligations		-			393,452			-			393,452
U.S. Government Agency Obligations and Instrumentalities		-			117,822,428			-			117,822,428
U.S. Treasury Obligations		-			98,780,241			-			98,780,241
Mutual Funds		1,024,135			-			-			1,024,135
Short-Term Investments		-			21,941,216			-			21,941,216
Total Investments	$	1,024,135		$	408,158,704		$	-		$	409,182,839
Asset Derivatives
Futures Contracts	$	584,128		$	-		$	-		$	584,128
Swap Agreements		-			333,801			-			333,801
Total	$	584,128		$	333,801		$	-		$	917,929
Liability Derivatives
Futures Contracts	$	(74,525	)	$	-		$	-		$	(74,525	)
Swap Agreements		-			(325,565	)		-			(325,565	)
Total	$	(74,525	)	$	(325,565	)	$	-		$	(400,090	)

* Includes foreign equity securities whose values were adjusted to reflect market trading of comparable securities or other correlated instruments after the close of trading in their applicable foreign markets, as applicable.

** None of the unobservable inputs for Level 3 assets, individually or collectively, had a material impact on the Fund(s). Level 3 investments at the end of the period in relation to net assets were not significant and accordingly, a reconciliation of Level 3 assets for the period ended March 31, 2019 is not presented.

+ Represents a security at $0 value as of March 31, 2019.

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The Funds, with the exception of the Global Fund, had no transfers between Levels of the fair value hierarchy during the period ended March 31, 2019. The Global Fund had transfers between Levels of the fair value hierarchy during the period ended March 31, 2019; however, none of the transfers individually or collectively had a material impact on the Funds. The Funds recognize transfers between the Levels as of the beginning of the year.

Derivative Instruments

Derivatives are financial instruments whose values are based on the values of one or more indicators, such as a security, asset, currency, interest rate, or index. Derivative transactions can create investment leverage and may be highly volatile. Losses from derivatives can be substantially greater than their original cost and can sometimes be unlimited. A Fund may not be able to close out a derivative transaction at a favorable time or price. For those Funds that held derivatives at March 31, 2019, the following table shows how the Fund used these types of derivatives during the period (marked with an “A”), as well as additional uses, if any, it may have for them in the future (marked with an “M”).

Type of Derivative and Objective for Use	Equity Index Fund	International Equity Fund	Managed Volatility Fund	Mid Cap Value Fund	Total Return Bond Fund
Foreign Currency Exchange Transactions
Hedging/Risk Management		A		A
Futures Contracts
Hedging/Risk Management					A
Duration/Credit Quality Management					A
Substitution for Direct Investment	A				M
Interest Rate Swaps***
Hedging/Risk Management					A
Duration Management					A
Options (Purchased)
Hedging/Risk Management			A
Options (Written)
Hedging/Risk Management			A
Income			A

* Includes any options purchased or written, futures contracts, forward contracts, and swap agreements, if applicable.

** Includes any options purchased or written on futures contracts, if applicable.

*** Includes any caps, floors, and collars, and related purchased or written options, if applicable.

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At March 31, 2019, the Fund(s) had the following derivatives and transactions in derivatives, grouped into the indicated risk categories:

	Equity Risk			Foreign Exchange Risk			Interest Rate Risk			Total
Equity Index Fund
Asset Derivatives
Futures Contracts	$	186,294		$	-		$	-		$	186,294
International Equity Fund
Asset Derivatives
Forward Contracts	$	-		$	146,578		$	-		$	146,578
Liability Derivatives
Forward Contracts	$	-		$	(6,453	)	$	-		$	(6,453	)
Managed Volatility Fund
Asset Derivatives
Purchased Options	$	479,273		$	-		$	-		$	479,273
Liability Derivatives
Written Options	$	(3,526,390	)	$	-		$	-		$	(3,526,390	)
Mid Cap Value Fund
Asset Derivatives
Forward Contracts	$	-		$	228,857		$	-		$	228,857
Liability Derivatives
Forward Contracts	$	-		$	(8,434	)	$	-		$	(8,434	)
Total Return Bond Fund
Asset Derivatives
Futures Contracts	$	-		$	-		$	584,128		$	584,128
Swap Agreements		-			-			333,801			333,801
Total Value	$	-		$	-		$	917,929		$	917,929
Liability Derivatives
Futures Contracts	$	-		$	-		$	(74,525	)	$	(74,525	)
Swap Agreements		-			-			(325,565	)		(325,565	)
Total Value	$	-		$	-		$	(400,090	)	$	(400,090	)

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At March 31, 2019, the number of contracts, notional amounts, or shares/units for each derivative type was as follows:

	Number of Contracts, Notional Amounts or Shares/Units†
Fund Name	Futures Contracts		Forward Contracts		Swap Agreements		Purchased Options		Written Options
Equity Index Fund		57	$	-	$	-		-		-
International Equity Fund		-		3,551,267		-		-		-
Managed Volatility Fund		-		-		-		541		541

Notes to Portfolio of Investments (Unaudited) (Continued)

	Number of Contracts, Notional Amounts or Shares/Units†
Fund Name	Futures Contracts		Forward Contracts		Swap Agreements		Purchased Options		Written Options
Mid Cap Value Fund		-	$	25,276,639	$	-		-		-
Total Return Bond Fund		632		-		29,595,000		-		-

† Amount(s) disclosed represent number of contracts for futures contracts, notional amounts for forward contracts and swap agreements, or shares/units outstanding for purchased options and written options, based on absolute values, at March 31, 2019.

Further details regarding the derivatives and other investments held by the Fund(s) at March 31, 2019, are discussed below.

Foreign Currency Exchange Transactions

A Fund may engage in foreign currency exchange transactions for hedging purposes in order to protect against uncertainty in the level of future foreign currency exchange rates, or for other, non-hedging purposes.

A Fund may enter into foreign currency exchange transactions, including foreign currency forward contracts. These contracts call for the Fund to deliver in the future an amount of one currency in return for an amount of another currency, at an exchange rate determined at the time the contract is entered into. Forward contracts are private contractual arrangements and a Fund is subject to the risk that its counterparty will not, or will not be able to, perform its obligations. This type of arrangement may require the Fund to post margin. A Fund may enter into foreign currency exchange transactions in order to hedge against changes in the values of the assets or liabilities denominated in one or more foreign currencies, or otherwise to increase or reduce a Fund’s exposure to various foreign currencies. The use of foreign currency exchange transactions may create investment leverage.

Whenever a Fund enters into a foreign currency exchange transaction, it is subject to the risk that the value of the transaction will move in a direction unfavorable to it. When the Fund uses the transactions for hedging purposes, it is likely that the Fund will have an asset or liability that will offset any loss (or gain) on the transactions, at least in part. If a Fund enters into foreign currency exchange transactions other than for hedging purposes (for example, seeking to profit from an anticipated change in the values of currencies by creating directional exposures in the portfolio with respect to one or more currencies), it will generally be subject to the same risks, but is less likely to have assets or liabilities that will offset any losses on the transactions. There can be no assurance that a Fund will be able to terminate any foreign currency exchange transaction prior to its maturity in order to limit its loss on the transaction.

Forward foreign currency contracts are marked to market daily and the change in their value is recorded by the Funds as an unrealized gain or loss. Forward foreign currency contracts are valued at the settlement price established through dealers or other market sources on the day which they are traded. When a forward foreign currency contract is extinguished, through delivery or offset by entering into another forward foreign currency contract, the Funds record a realized gain or loss equal to the difference between the value of the contract at the time it was opened and the value of the contract at the time it was extinguished or offset. The notional or contractual amounts of these instruments do not necessarily represent the amounts potentially subject to risk. The measurement of the risk associated with these instruments is meaningful only when all related and offsetting transactions and counterparty risks are considered.

A Fund’s current exposure to a counterparty is the unrealized appreciation on the contract.

Futures Contracts

A Fund may seek to manage a variety of different risks, such as interest rate risk, equity price risk, and currency risk, through the use of futures contracts. A Fund may use interest rate futures contracts to adjust the interest rate sensitivity (duration) of its portfolio or the credit exposure of the portfolio. Interest rate futures contracts obligate the long or short holder to take or make delivery of a specified quantity of a financial instrument, such as a specific fixed-income security, during a specified future period at a specified price. A Fund may use index futures contracts to hedge against broad market risks to its portfolio or to gain broad market exposure when it holds uninvested cash or as an inexpensive substitute for cash investments directly in securities or other assets, including commodities and precious metals. Securities index futures contracts are contracts to buy or sell units of a securities index at a specified future date at a price agreed upon when the contract is made and are settled in cash. Positions in futures contracts may be closed out only on an exchange or board of trade which provides a secondary market for such futures. Because futures contracts are exchange-traded, they typically have minimal exposure to counterparty risk.

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Parties to a futures contract are not required to post the entire notional amount of the contract, but rather a small percentage of that amount (by way of margin), both at the time they enter into futures transactions, and then on a daily basis if their positions decline in value; as a result, futures contracts are highly leveraged. Such payments are known as variation margin and are recorded by the Funds as unrealized gains or losses. Because futures markets are highly leveraged, they can be extremely volatile, and there can be no assurance that the pricing of a futures contract will correlate precisely with the pricing of the asset or index underlying it or the asset or liability of the Fund that is the subject of the hedge. It may not always be possible for a Fund to enter into a closing transaction with respect to a futures contract it has entered into, at a favorable time or price. When a Fund enters into a futures transaction, it is subject to the risk that the value of the futures contract will move in a direction unfavorable to it. When a Fund uses futures contracts for hedging purposes, it is likely that the Fund will have an asset or liability that will offset any loss (or gain) on the transactions, at least in part.

When a futures contract is closed, the Fund records a realized gain or loss equal to the difference between the value of the contract at the time it was opened and the value at the time it was closed. Futures contracts are valued at the settlement price established each day by the board of trade or exchange on which they are traded.

Swap Agreements

Swap agreements are typically two-party contracts entered into primarily by institutional investors. In a standard “swap” transaction, two parties agree to exchange the returns (or differentials in rates of return) earned or realized on particular predetermined investments or instruments or rates, which may be adjusted for an interest factor. The gross returns to be exchanged or “swapped” between the parties are generally calculated with respect to a “notional amount,” (i.e., the return on or increase in value of a particular dollar amount invested at a particular interest rate or in a “basket” of securities representing a particular index).

Interest Rate Swaps. When a Fund enters into an interest rate swap, it typically agrees to make payments to its counterparty based on a specified long- or short-term interest rate, and will receive payments from its counterparty based on another interest rate. Other forms of interest rate swap agreements include, among others, interest rate caps, under which, in return for a specified payment stream, one party agrees to make payments to the other to the extent that interest rates exceed a specified rate, or “cap”; interest rate floors, under which, in return for a specified payment stream, one party agrees to make payments to the other to the extent that interest rates fall below a specified rate, or “floor”; and interest rate collars, under which a party sells a cap and purchases a floor or vice versa in an attempt to protect itself against interest rate movements exceeding given minimum or maximum levels. A Fund may enter into an interest rate swap in order, for example, to hedge against the effect of interest rate changes on the value of specific securities in its portfolio, or to adjust the interest rate sensitivity (duration) or the credit exposure of its portfolio overall, or otherwise as a substitute for a direct investment in debt securities.

Whenever a Fund enters into a swap agreement, it takes on counterparty risk — the risk that its counterparty will be unable or unwilling to meet its obligations under the swap agreement. The Fund also takes the risk that the market will move against its position in the swap agreement. In the case of an interest rate swap, the value of the swap may increase or decrease depending on changes in interest rates. When the Fund enters into any type of swap for hedging purposes, it is likely that the Fund will have an asset or liability that will offset any loss (or gain) on the swap, at least in part. Swap agreements may be non-transferable or otherwise highly illiquid, and a Fund may not be able to terminate or transfer a swap agreement at any particular time or at an acceptable price.

Centrally Cleared Swaps. Certain clearinghouses currently offer clearing for limited types of derivatives transactions, principally certain interest rate swaps, certain index swaps, and credit derivatives. In a cleared derivative transaction, a Fund typically enters into the transaction with a financial institution counterparty, and performance of the transaction is effectively guaranteed by a central clearinghouse, thereby reducing or eliminating the Fund’s exposure to the credit risk of its original counterparty. The Fund will be required to post amounts (“initial margin”) with the clearinghouse or at the instruction of the clearinghouse. The initial margin required by a clearinghouse may be greater than the initial margin the Fund would be required to post in an uncleared transaction. If cash is deposited as the initial margin, it is shown as collateral on a Fund’s Statement of Assets and Liabilities. Swap agreements are marked-to-market daily and subsequent payments (“variation margin”) are made or received by a Fund depending on whether unrealized gains or losses are incurred. These amounts are reflected as receivables or payables on a Fund’s Statement of Assets and Liabilities (“Variation margin on open derivative instruments”) and as a component of net change in unrealized appreciation (depreciation) on a Fund’s Statement of Operations. Only a limited number of transaction types are currently eligible for clearing.

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During the term of a swap transaction, changes in the value of the swap are recognized as unrealized gains or losses by marking to market to reflect the market value of the swap. When the swap is terminated, a Fund will record a realized gain or loss equal to the difference, if any, between the proceeds from (or cost of) the closing transaction and a Fund’s basis in the agreement. Upfront swap premium payments paid or received by a Fund, if any, are recorded within the value of the open swap agreement on the Fund’s Statement of Assets and Liabilities and represent payments paid or received upon entering into the swap agreement to compensate for differences between stated terms of the swap agreement and prevailing market conditions (credit spreads, currency exchange rates, and other relevant factors). These upfront payments are recorded as realized gain or loss on the Fund’s Statement of Operations upon termination or maturity of the swap agreement.

During the term of a swap transaction, the periodic net payments can be made for a set period of time or may be triggered by a predetermined credit event. The net periodic payments may be based on a fixed or variable interest rate, the change in market value of a specified security, basket of securities or index, or the return generated by a security.

A Fund’s current exposure to a counterparty is the fair value of the transaction.

Options

A Fund may purchase and sell put and call options on securities or an index of securities to enhance investment performance or to protect against changes in market prices. A Fund that invests in debt securities may also purchase and sell put and call options to adjust the interest rate sensitivity of its portfolio or the credit exposure of the portfolio.

Call Options. A call option gives the holder the right to purchase, and obligates the writer to sell, a security at the strike price at any time before the expiration date.

Put Options. A put option gives the holder the right to sell, and obligates the writer to buy, a security at the exercise price at any time before the expiration date.

Writing put and call options. A Fund may write call options on a security it owns, in a “directional” strategy hoping to realize a greater current return through the receipt of premiums. In return for the option premium, the Fund takes the risk that it will have to forego any increase in the value of the security over the strike price. When a Fund has written a call option on a security it does not own, its exposure on such an option is theoretically unlimited. A Fund may enter into closing purchase transactions in order to realize a profit or limit a loss on a previously written call option or, in the case of a call option on a security it owns, to free itself to sell the underlying security or to write another call on the security, or protect a security from being called in an unexpected market rise. Any profits from a closing purchase transaction in the case of a call option on a security a Fund owns may be offset by a decline in the value of the underlying security. Conversely, because increases in the market price of a call option will generally reflect increases in the market price of the underlying security, any loss resulting from a closing purchase transaction relating to a call option on a security a Fund owns is likely to be offset in whole or in part by unrealized appreciation of the underlying security owned by the Fund. A Fund may not be able to close out a call option that it has previously written. A Fund may write put options in order to enhance its current return by taking a long directional position as to a security or index of securities. By writing a put option, the Fund assumes the risk that it may be required to purchase the underlying security for an exercise price higher than its then current market value, resulting in a potential capital loss unless the security later appreciates in value. A Fund may terminate a put option that it has written before it expires by entering into a closing purchase transaction. Any loss from this transaction may be partially or entirely offset by the premium received on the terminated option. A Fund may not be able to close out a put option that it has previously written.

When a Fund writes a call or put option, an amount equal to the premium received is recorded as a liability. Premiums received from writing options which expire are treated as realized gains. Premiums received from writing options which are exercised or closed are added to the proceeds or offset against the amount paid on the underlying investment to determine the realized gain or loss.

Purchasing put and call options. A Fund may purchase put options to protect portfolio holdings against a decline in market value of a security or securities held by it. A Fund may also purchase a put option hoping to profit from an anticipated decline in the value of the underlying security. If the Fund holds the security underlying the option, the option premium and any transaction costs will reduce any profit the Fund might have realized had it sold the underlying security instead of buying the put option. A Fund may purchase call options to hedge against an increase in the price of securities that the Fund wants ultimately to buy. A Fund may also purchase a call option as a long directional investment hoping to profit from an anticipated increase in the value of the underlying security. In order for a call option to be profitable, the market price of the underlying security must rise sufficiently above the exercise price to cover the premium and transaction costs. These costs will reduce any profit the Fund might have realized had it bought the underlying security at the time it purchased the call option.

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When a Fund purchases an option, it runs the risk that it will lose its entire investment in the option in a relatively short period of time, unless the Fund exercises the option or enters into a closing sale transaction before the option’s expiration. If the price of the underlying security does not rise (in the case of a call) or fall (in the case of a put) to an extent sufficient to cover the option premium and transaction costs, the Fund will lose part or all of its investment in the option. This contrasts with an investment by a Fund in the underlying security, since the Fund will not realize a loss if the security’s price does not change. Premiums paid for purchasing options that expire are treated as realized losses.

Exchange Traded Options. Exchange traded options purchased or sold by a Fund may be traded on a securities or options exchange or market. Such options typically have minimal exposure to counterparty risk. However, an exchange or market may at times find it necessary to impose restrictions on particular types of options transactions, such as opening transactions. If an underlying security ceases to meet qualifications imposed by the market or the Options Clearing Corporation, new series of options on that security will no longer be opened to replace expiring series, and opening transactions in existing series may be prohibited. Exchange traded options are valued at the last sale price, or if no sales are reported, the last bid price.

Inflation-Linked Securities

Inflation-linked securities are typically fixed income securities whose principal values are periodically adjusted according to a measure of inflation. If the index measuring inflation falls, the principal value of an inflation-linked security will be adjusted downward, and consequently the interest payable on the security (calculated with respect to a smaller principal amount) will be reduced. Repayment of the original principal of the security upon maturity (as adjusted for inflation) is guaranteed in the case of U.S. Treasury inflation-linked securities. For securities that do not provide a similar guarantee, the adjusted principal value of the security repaid at maturity may be less than the original principal.

Alternatively, the interest rates payable on certain inflation-linked securities may be adjusted according to a measure of inflation. As a result, the principal values of such securities do not adjust according to the rate of inflation, although the interest payable on such securities may decline during times of falling inflation.

The values of inflation-linked securities are expected to change in response to changes in real interest rates. Real interest rates are tied to the relationship between nominal interest rates and the rate of inflation. If nominal interest rates increase at a faster rate than inflation, real interest rates may rise, leading to a decrease in value of inflation-linked securities. Inflation-linked securities may cause a potential cash flow mismatch to investors, because an increase in the principal amount of an inflation-linked security will be treated as interest income currently subject to tax at ordinary income rates even though investors will not receive repayment of principal until maturity. If a Fund invests in such securities, it will be required to distribute such interest income in order to qualify for treatment as a regulated investment company and eliminate the Fund-level tax, without a corresponding receipt of cash, and therefore may be required to dispose of portfolio securities at a time when it may not be advantageous to do so in order to make such distributions.

Bank Loans

A Fund may invest in bank loans including, for example, corporate loans, loan participations, direct debt, bank debt, and bridge debt. A Fund may invest in a loan by lending money to a borrower directly as part of a syndicate of lenders. In a syndicated loan, the agent that originated and structured the loan typically administers and enforces the loan on behalf of the syndicate. Failure by the agent to fulfill its obligations may delay or adversely affect receipt of payment by a Fund. A Fund may also invest in loans through novations, assignments, and participation interests. In a novation, a Fund typically assumes all of the rights of a lending institution in a loan, including the right to receive payments of principal and interest and other amounts directly from the borrower and to enforce its rights as a lender directly against the borrower. When a Fund takes an assignment of a loan, the Fund acquires some or all of the interest of another lender (or assignee) in the loan. In such cases, the Fund may be required generally to rely upon the assignor to demand payment and enforce rights under the loan. If a Fund acquires a participation in the loan, the Fund purchases an indirect interest in a loan held by a third party and the Fund typically will have a contractual relationship only with the third party loan investor, not with the borrower. As a result, a Fund may have the right to receive payments of principal, interest, and any fees to which it is entitled only from the loan investor selling the participation and only upon receipt by such loan investor of such payments from the borrower. In such cases, a Fund assumes the credit risk of both the borrower and the loan investor selling the participation, and the Fund may be unable to realize some or all of the value of its interest in the loan in the event of the insolvency of the third party.

Changes in the financial condition of the borrower or economic conditions or other circumstances may reduce the capacity of the borrower to make principal and interest payments on such instruments and may lead to defaults. The value of any collateral securing a bank loan may decline after the Fund invests, and there is a risk that the value of the collateral may not be sufficient to cover the amount owed to the Fund.

At March 31, 2019, the Funds had no unfunded loan commitments.

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Repurchase Agreements

Each Fund may enter into repurchase agreements with certain banks and broker-dealers whereby a Fund acquires a security for cash and obtains a simultaneous commitment from the seller to repurchase the security at an agreed upon price and date. A Fund, through its custodian, takes possession of the securities collateralizing the repurchase agreement in a segregated account. Repurchase agreements must be fully collateralized at all times, but involve some risk to a Fund if the other party should default on its obligation and the Fund is delayed or prevented from recovering the collateral, or if the Fund is required to return collateral to a borrower at a time when it may realize a loss on the investment of that collateral.

When-Issued, Delayed-Delivery, Forward Commitment, and To-Be-Announced Transactions

A Fund may enter into when-issued, delayed-delivery, forward commitment, or to-be-announced (“TBA”) transactions (collectively, the “Forward Transactions”) in order to lock in the purchase price of the underlying security, or in order to adjust the interest rate exposure of the Fund’s existing portfolio. In Forward Transactions, a Fund commits to purchase or sell particular securities, with payment and delivery to take place at a future date. In the case of TBA purchase commitments, the unit price and the estimated principal amount are established when the Fund enters into a commitment, with the actual principal amount being within a specified range of the estimate. Although a Fund does not typically pay for the securities in these types of transactions until they are delivered, it immediately assumes the risks of ownership, including the risk of price fluctuation. As a result, each of these types of transactions may create investment leverage in a Fund’s portfolio and increase the volatility of the Fund. If a Fund’s counterparty fails to deliver a security purchased in a Forward Transaction, there may be a loss, and the Fund may have missed an opportunity to make an alternative investment.

These securities are valued on the basis of valuations furnished by a pricing service, selected pursuant to procedures approved by the Trustees, which determines valuations taking into account appropriate factors such as institutional-size trading in similar groups of securities, yield, quality, coupon rate, maturity, type of issue, trading characteristics, and other market data. Securities for which no market quotation is available are valued at fair value in accordance with procedures approved by the Trustees. The Funds record on a daily basis the unrealized appreciation (depreciation) based upon changes in the values of these securities. When a Forward Transaction is closed, the Funds record a realized gain or loss equal to the difference between the value of the transaction at the time it was opened and the value of the transaction at the time it was closed.

Dollar Roll Transactions

A Fund may enter into dollar roll transactions, in which the Fund sells mortgage-backed securities for delivery in the current month and simultaneously contracts to purchase substantially similar securities on a specified future date from the same party. A Fund may invest in dollar rolls in order to benefit from anticipated changes in pricing for the mortgage-backed securities during the term of the transaction, or for the purpose of creating investment leverage. In a dollar roll, the securities that are to be purchased will be of the same type as the securities sold, but will be supported by different pools of mortgages.

Dollar rolls involve the risk that the Fund’s counterparty will be unable to deliver the mortgage-backed securities underlying the dollar roll at the fixed time. If the counterparty files for bankruptcy or becomes insolvent, a Fund’s use of the transaction proceeds may be restricted pending a determination by the counterparty or its representative, whether to enforce the Fund’s obligation to repurchase the securities. A Fund can incur a loss on a dollar roll transaction (either because its counterparty fails to perform or because the value of the mortgages subject to the transaction declines) and on the investments made by the Fund with the proceeds of the dollar roll transaction.

A Fund accounts for a dollar roll transaction as a purchase and sale whereby the difference in the sales price and purchase price of the security sold is recorded as a realized gain (loss). If certain criteria are met, these dollar roll transactions may be considered financing transactions, whereby the difference in the sales price and the future purchase price is recorded as an adjustment to interest income. Dollar roll transactions generally have the effect of creating leverage in a Fund’s portfolio.

Securities Lending

Each Fund may lend its securities; however, lending cannot exceed 33% of the total assets of the Fund taken at current value. The Funds’ securities lending activities are governed by a Securities Lending Agency Agreement (“Lending Agreement”) between each Fund and the lending agent (“Agent”). The Lending Agreement authorizes the Agent to lend portfolio securities held by a Fund to approved borrowers (each, a “Borrower”).

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Each Fund expects that in connection with any securities on loan, the loan will be secured continuously by collateral consisting of cash (U.S. currency) adjusted daily to have value at least equal to the current market value of the securities loaned. The market value of the loaned securities is determined at the close of business of a Fund and any additional collateral is delivered to the Fund the next business day. The Funds bear the risk of loss with respect to the investment of cash collateral. As with other extensions of credit, the Funds may bear the risk of delay in recovery of the loaned securities or even loss of rights in the collateral should the Borrower of the securities fail financially. Pursuant to the Lending Agreement, the Agent has provided indemnification to the Funds in the event of default by a Borrower with respect to a loan. The Funds receive compensation for lending their securities in the form of a securities loan fee paid by the Borrower, as well as a share of the income earned on investment of the cash collateral received for the loaned securities. At March 31, 2019, the Funds’ collateral was equal to or greater than 100% of the market value of securities on loan.

Subject to the terms of the Lending Agreement and the agreement between the Agent and the applicable Borrower (“Borrowing Agreement”), security loans can be terminated by the Agent, the Fund, or the Borrower and the related securities must be returned within the earlier of the customary settlement period for such securities or the period of time specified in the Borrowing Agreement. For all Funds, all securities on loan are classified as common stock in the Fund’s Portfolio of Investments at March 31, 2019.

Accounting for Investment Transactions

Investment transactions are accounted for on the trade date. Realized gains and losses on sales of investments and unrealized appreciation and depreciation of investments are computed by the specific identification cost method. Proceeds received from litigation, if any, are included in realized gains on investment transactions for any investments that are no longer held in the portfolio and as a reduction in cost for investments that continue to be held in the portfolio. Interest income, adjusted for amortization of discounts and premiums on debt securities, is earned from the settlement date and is recorded on the accrual basis. Dividend income is recorded on the ex-dividend date. Withholding taxes on foreign interest, dividends, and capital gains have been provided for in accordance with the applicable country’s tax rules and rates. Foreign dividend income is recorded on the ex-dividend date or as soon as practicable after the Fund determines the existence of a dividend declaration after exercising reasonable due diligence. Distributions received on securities that represent a return of capital or capital gain are recorded as a reduction of cost of investments and/or as a realized gain. The Funds determine the classification of distributions received as return of capital distributions or capital gain distributions.

Foreign Currency Translation

The books and records of the Funds are maintained in U.S. dollars. The market values of foreign currencies, foreign securities, and other assets and liabilities denominated in foreign currencies are translated into U.S. dollars at the mean of the buying and selling rates of such currencies against the U.S. dollar at the end of each business day. Purchases and sales of foreign securities and income and expense items are translated at the rates of exchange prevailing on the respective dates of such transactions. The Funds do not isolate that portion of the results of operations arising from changes in the exchange rates from that portion arising from changes in the market prices of securities. Net realized foreign currency gains and losses resulting from changes in exchange rates include foreign currency gains and losses between trade date and settlement date on investment securities transactions, foreign currency transactions, and the difference between the amounts of dividends or interest recorded on the books of the Funds and the amount actually received.

Allocation of Operating Activity

In maintaining the records for the Funds, the income and expense accounts are allocated daily to each class of shares. Investment income and loss, and unrealized and realized gains or losses are prorated among the classes of shares based on the relative net assets of each. Expenses are allocated to each class of shares depending on the nature of the expenditures. Administration and service fees, if any, which are directly attributable to a class of shares, are charged to that class’s operations. Expenses of a Fund not directly attributable to the operations of any specific class of shares of the Fund are prorated among the classes to which the expense relates based on relative net assets.

In addition, the Aggressive Allocation Fund, MML American Funds Core Allocation Fund, MML American Funds Growth Fund, MML American Funds International Fund, Balanced Allocation Fund, Conservative Allocation Fund, Growth Allocation Fund, and Moderate Allocation Fund will also incur certain fees and expenses indirectly as a shareholder in the Underlying Funds or the Master Funds. Because the Underlying Funds have varied expense and fee levels and each Fund, except MML American Funds Growth Fund and MML American Funds International Fund, may own different proportions of Underlying Funds at different times, the amount of fees and expenses indirectly incurred by each Fund will vary.

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Foreign Securities

The Global Fund invests a significant amount of its assets in foreign securities and each of the Foreign Fund and the International Equity Fund invests substantially all of its assets in foreign securities. The other Funds and certain Underlying Funds or Master Funds may also invest in foreign securities. Foreign securities, including American Depositary Receipts, are subject to additional risks compared to securities of U.S. issuers, including international trade, currency, political, regulatory, and diplomatic risks. In addition, fluctuations in currency exchange rates may adversely affect the values of foreign securities and the price of a Fund’s shares. Emerging markets securities are subject to greater risks than securities issued in developed foreign markets, including less liquidity, greater price volatility, higher relative rates of inflation, greater political, economic, and social instability, greater custody and operational risks, and greater volatility in currency exchange rates.

Federal Income Tax

It is each Fund’s intent to continue to comply with the provisions of Subchapter M of the Code, applicable to a regulated investment company. Under such provisions, the Funds would not be subject to federal income taxes on their ordinary income and net realized capital gains to the extent they are distributed or deemed to have been distributed to their shareholders. Therefore, the Funds have not made any provision for federal income tax.

Dividends and Distributions to Shareholders

Dividends from net investment income and distributions of any net realized capital gains of each Fund are declared and paid annually and at other times as may be required to satisfy tax or regulatory requirements.

Distributions to shareholders are recorded on the ex-dividend date. Income and capital gain distributions are determined in accordance with income tax regulations, which may differ from generally accepted accounting principles. As a result, net investment income and net realized capital gains on investment transactions for a reporting period may differ significantly from distributions during such period.

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3. Federal Income Tax Information

At March 31, 2019, the aggregate cost of investments and the unrealized appreciation (depreciation) in the value of all investments owned by the Fund(s), as computed on a federal income tax basis, were as follows:

	Federal Income Tax Cost		Tax Basis Unrealized Appreciation		Tax Basis Unrealized (Depreciation)			Net Unrealized Appreciation (Depreciation)
Aggressive Allocation Fund	$	152,939,384	$	3,726,067	$	(5,479,611	)	$	(1,753,544	)
MML American Funds Core Allocation Fund		983,293,914		28,970,006		(2,205,243	)		26,764,763
MML American Funds Growth Fund		164,338,230		18,892,958		-			18,892,958
MML American Funds International Fund		58,970,969		3,867,447		-			3,867,447
Balanced Allocation Fund		537,463,225		7,196,432		(12,988,685	)		(5,792,253	)
Blue Chip Growth Fund		240,105,219		163,844,449		(2,842,880	)		161,001,569
Conservative Allocation Fund		415,803,077		4,653,833		(7,143,517	)		(2,489,684	)
Equity Income Fund		399,992,991		82,397,969		(21,072,840	)		61,325,129
Equity Index Fund		403,657,933		280,236,973		(15,428,005	)		264,808,968
Focused Equity Fund		65,521,777		8,589,050		(294,559	)		8,294,491
Foreign Fund		307,614,944		35,082,468		(27,836,103	)		7,246,365
Fundamental Growth Fund		86,282,242		22,868,272		(447,240	)		22,421,032
Fundamental Value Fund		178,690,746		14,940,172		(3,638,582	)		11,301,590
Global Fund		186,791,865		53,484,268		(10,277,555	)		43,206,713
Growth Allocation Fund		1,551,371,197		38,599,226		(47,219,160	)		(8,619,934	)
Growth & Income Fund		93,596,685		52,108,523		(3,493,961	)		48,614,562
Income & Growth Fund		274,328,889		26,344,623		(20,218,543	)		6,126,080
International Equity Fund		192,870,082		6,745,089		(23,724,180	)		(16,979,091	)
Large Cap Growth Fund		69,620,824		32,424,600		(1,478,127	)		30,946,473
Managed Volatility Fund		110,139,003		55,222,506		(7,866,183	)		47,356,323
Mid Cap Growth Fund		343,260,058		140,031,372		(13,053,384	)		126,977,988
Mid Cap Value Fund		413,398,332		36,418,459		(28,317,658	)		8,100,801
Moderate Allocation Fund		2,164,205,120		40,419,422		(62,940,020	)		(22,520,598	)
Small Cap Growth Equity Fund		180,219,096		36,970,225		(10,063,231	)		26,906,994
Small Company Value Fund		79,676,690		23,652,950		(5,567,851	)		18,085,099
Small/Mid Cap Value Fund		193,132,711		25,172,811		(17,886,260	)		7,286,551
Total Return Bond Fund		405,906,621		6,842,418		(3,566,200	)		3,276,218

4. Investment in Affiliated Issuers

A summary of the Funds’ transactions in the securities of affiliated issuers during the period ended March 31, 2019, was as follows:

	Beginning Value as of 12/31/18		Purchases		Sales			Change in Unrealized Appreciation/ Depreciation		Net Realized Gain (Loss)			Value as of 3/31/19		Number of Shares Held as of 3/31/19		Dividend Income		Realized Gains Distributions
Aggressive Allocation Fund
MML Blue Chip Growth Fund, Initial Class	$	7,492,621	$	41,797	$	(553,424	)	$	1,137,575	$	41,448		$	8,160,017		481,133	$	-	$	-
MML Dynamic Bond Fund, Class II		2,110,207		406,723		(59,164	)		77,096		(359	)		2,534,503		255,237		-		-

150

	Beginning Value as of 12/31/18		Purchases		Sales			Change in Unrealized Appreciation/ Depreciation		Net Realized Gain (Loss)			Value as of 3/31/19		Number of Shares Held as of 3/31/19		Dividend Income		Realized Gains Distributions
Aggressive Allocation Fund (Continued)
MML Equity Income Fund, Initial Class	$	8,137,735	$	33,459	$	(550,226	)	$	1,012,358	$	(136,094	)	$	8,497,232		762,768	$	-	$	-
MML Equity Index Fund, Class III		6,491,985		18,131		(1,371,551	)		655,296		187,481			5,981,342		187,679		-		-
MML Focused Equity Fund, Class II		2,954,365		263,758		(185,369	)		663,519		(281,870	)		3,414,403		566,236		-		-
MML Foreign Fund, Initial Class		7,087,331		465,708		(179,418	)		568,296		(7,537	)		7,934,380		795,825		-		-
MML Fundamental Growth Fund, Class II		3,631,211		28,719		(401,286	)		620,438		(58,826	)		3,820,256		349,840		-		-
MML Fundamental Value Fund, Class II		7,637,762		31,695		(285,251	)		727,939		(55,524	)		8,056,621		597,672		-		-
MML Global Fund, Class I		7,840,600		29,167		(415,595	)		1,198,286		(58,727	)		8,593,731		730,139		-		-
MML Income & Growth Fund, Initial Class		7,974,747		28,060		(468,444	)		1,056,880		(143,761	)		8,447,482		891,085		-		-
MML Inflation-Protected and Income Fund, Initial Class		3,658,525		212,858		(139,899	)		130,960		(8,767	)		3,853,677		383,832		-		-
MML International Equity Fund, Class II		8,134,205		22,415		(182,364	)		767,361		(13,794	)		8,727,823		896,080		-		-
MML Large Cap Growth Fund, Initial Class		2,769,962		26,496		(387,108	)		431,034		(18,789	)		2,821,595		251,032		-		-
MML Managed Bond Fund, Initial Class		3,292,209		774,358		(163,798	)		140,226		(11,390	)		4,031,605		326,160		-		-
MML Mid Cap Growth Fund, Initial Class		8,024,717		29,274		(235,667	)		1,277,748		2,570			9,098,642		561,991		-		-
MML Mid Cap Value Fund, Initial Class		7,508,175		30,160		(463,594	)		1,154,860		(167,452	)		8,062,149		761,298		-		-
MML Short-Duration Bond Fund, Class II		2,924,442		10,153		(81,513	)		50,473		(2,350	)		2,901,205		297,560		-		-
MML Small Cap Growth Equity Fund, Initial Class		1,389,492		260,983		(86,473	)		261,305		10,996			1,836,303		119,309		-		-
MML Small Company Value Fund, Class II		3,274,681		114,327		(114,918	)		423,845		(17,651	)		3,680,284		235,765		-		-
MML Small/Mid Cap Value Fund, Initial Class		2,427,738		10,053		(80,636	)		296,040		(12,428	)		2,640,767		222,474		-		-
MML Strategic Emerging Markets Fund, Class II		6,760,669		222,890		(185,942	)		841,604		15,223			7,654,444		671,442		-		-
MML Total Return Bond Fund, Class II		1,883,099		598,132		(87,825	)		74,031		(2,267	)		2,465,170		235,002		-		-
Oppenheimer Discovery Mid Cap Growth Fund/VA, Non-Service Shares*		2,551,637		9,997		(160,579	)		477,699		3,544			2,882,298		35,210		-		-
Oppenheimer Global Fund/VA, Non-Service Shares*		3,381,972		13,825		(206,855	)		511,864		44,240			3,745,046		84,367		-		-
Oppenheimer Global Multi- Alternatives Fund/VA, Non-Service Shares*		12,794,289		165,118		(200,001	)		353,436		(5,400	)		13,107,442		1,344,353		165,118		-
Oppenheimer International Growth Fund/VA, Non- Service Shares*		3,627,672		15,089		(121,813	)		430,316		(24,677	)		3,926,587		1,737,428		-		-
Oppenheimer Main Street Fund/VA, Non-Service Shares*		3,789,298		3,764		(33,126	)		550,416		484			4,310,836		140,372		-		-
	$	139,551,346	$	3,867,109	$	(7,401,839	)	$	15,890,901	$	(721,677	)	$	151,185,840			$	165,118	$	-

151

		Beginning Value as of 12/31/18		Purchases		Sales			Change in Unrealized Appreciation/ Depreciation		Net Realized Gain (Loss)			Value as of 3/31/19	Number of Shares Held as of 3/31/19		Dividend Income		Realized Gains Distributions
Balanced Allocation Fund
MML Blue Chip Growth Fund, Initial Class	$	14,319,625	$	385,863	$	(1,235,712	)	$	2,193,823	$	100,052		$	15,763,651	929,461	$	-	$	-
MML Dynamic Bond Fund, Class II		63,752,628		1,557,296		(2,479,134	)		2,149,895		(66,566	)		64,914,119	6,537,172		-		-
MML Equity Income Fund, Initial Class		16,666,058		1,251,489		(2,161,939	)		2,410,528		(548,478	)		17,617,658	1,581,477		-		-
MML Equity Index Fund, Class III		15,692,671		66,404		(5,234,804	)		1,240,407		765,390			12,530,068	393,162		-		-
MML Focused Equity Fund, Class II		2,687,561		999,943		(373,690	)		774,898		(413,837	)		3,674,875	609,432		-		-
MML Foreign Fund, Initial Class		14,176,316		95,051		(1,143,582	)		1,175,427		(95,614	)		14,207,598	1,425,035		-		-
MML Fundamental Growth Fund, Class II		9,289,466		68,154		(850,849	)		1,612,633		(143,570	)		9,975,834	913,538		-		-
MML Fundamental Value Fund, Class II		15,134,714		109,330		(916,057	)		1,483,189		(148,869	)		15,662,307	1,161,892		-		-
MML Global Fund, Class I		15,989,551		887,028		(1,596,332	)		2,549,986		(170,633	)		17,659,600	1,500,391		-		-
MML High Yield Fund, Class II		13,437,551		71,006		(794,839	)		976,549		(108,769	)		13,581,498	1,405,952		-		-

152

	Beginning Value as of 12/31/18		Purchases		Sales			Change in Unrealized Appreciation/ Depreciation		Net Realized Gain (Loss)			Value as of 3/31/19		Number of Shares Held as of 3/31/19		Dividend Income		Realized Gains Distributions
Balanced Allocation Fund (Continued)
MML Income & Growth Fund, Initial Class	$	17,457,908	$	113,413	$	(1,274,460	)	$	2,343,281	$	(334,636	)	$	18,305,506		1,930,961	$	-	$	-
MML Inflation-Protected and Income Fund, Initial Class		18,608,638		1,489,923		(584,426	)		672,716		(43,503	)		20,143,348		2,006,310		-		-
MML International Equity Fund, Class II		12,461,899		1,364,816		(408,667	)		1,243,004		(21,530	)		14,639,522		1,503,031		-		-
MML Large Cap Growth Fund, Initial Class		5,951,119		52,705		(807,159	)		962,348		(60,475	)		6,098,538		542,575		-		-
MML Managed Bond Fund, Initial Class		86,417,649		5,405,797		(4,480,072	)		3,263,869		(191,425	)		90,415,818		7,314,709		-		-
MML Mid Cap Growth Fund, Initial Class		12,522,921		86,827		(750,789	)		1,953,044		39,362			13,851,365		855,551		-		-
MML Mid Cap Value Fund, Initial Class		13,551,381		373,570		(764,668	)		2,076,621		(253,715	)		14,983,189		1,414,843		-		-
MML Short-Duration Bond Fund, Class II		23,866,311		134,734		(1,273,140	)		412,587		(26,193	)		23,114,299		2,370,697		-		-
MML Small Cap Growth Equity Fund, Initial Class		3,193,020		166,668		(163,678	)		667,677		(37,480	)		3,826,207		248,598		-		-
MML Small Company Value Fund, Class II		5,608,566		135,622		(220,926	)		731,123		(31,423	)		6,222,962		398,652		-		-
MML Small/Mid Cap Value Fund, Initial Class		3,547,754		323,436		(157,856	)		472,070		(22,062	)		4,163,342		350,745		-		-
MML Strategic Emerging Markets Fund, Class II		600,594		3,243		(7,073	)		75,198		740			672,702		59,009		-		-
MML Total Return Bond Fund, Class II		54,159,581		2,890,469		(3,448,872	)		1,843,962		(124,003	)		55,321,137		5,273,702		-		-
Oppenheimer Discovery Mid Cap Growth Fund/VA, Non-Service Shares*		4,330,133		27,782		(291,085	)		792,161		24,936			4,883,927		59,662		-		-
Oppenheimer Global Fund/VA, Non-Service Shares*		8,827,673		59,171		(650,479	)		1,462,649		(14,092	)		9,684,922		218,178		-		-
Oppenheimer Global Multi-Alternatives Fund/VA, Non-Service Shares*		36,229,988		464,550		(800,000	)		1,074,015		(91,381	)		36,877,172		3,782,274		464,550		-
Oppenheimer International Growth Fund/VA, Non-Service Shares*		11,079,936		1,333,435		(340,236	)		1,387,608		(49,249	)		13,411,494		5,934,290		-		-
Oppenheimer Main Street Fund/VA, Non-Service Shares*		8,298,100		30,898		(67,381	)		1,205,977		720			9,468,314		308,314		-		-
	$	507,859,312	$	19,948,623	$	(33,277,905	)	$	39,207,245	$	(2,066,303	)	$	531,670,972			$	464,550	$	-

153 

	Beginning Value as of 12/31/18		Purchases		Sales			Change in Unrealized Appreciation/ Depreciation		Net Realized Gain (Loss)			Value as of 3/31/19		Number of Shares Held as of 3/31/19		Dividend Income		Realized Gains Distributions
Conservative Allocation Fund
MML Blue Chip Growth Fund, Initial Class	$	8,639,754	$	1,341,233	$	(1,071,604	)	$	1,356,594	$	124,890		$	10,390,867		612,669	$	-	$	-
MML Dynamic Bond Fund, Class II		63,036,979		1,159,830		(2,029,752	)		2,122,913		(47,537	)		64,242,433		6,469,530		-		-
MML Equity Income Fund, Initial Class		11,259,033		721,811		(1,827,463	)		1,282,404		(42,552	)		11,393,233		1,022,732		-		-
MML Equity Index Fund, Class III		11,881,555		33,988		(3,941,239	)		943,002		576,703			9,494,009		297,898		-		-
MML Focused Equity Fund, Class II		2,409,391		1,845,284		(173,655	)		638,009		(184,159	)		4,534,870		752,051		-		-
MML Foreign Fund, Initial Class		8,108,780		90,082		(1,263,164	)		774,336		(176,727	)		7,533,307		755,598		-		-
MML Fundamental Growth Fund, Class II		6,255,798		175,428		(724,771	)		1,091,169		(97,999	)		6,699,625		613,519		-		-
MML Fundamental Value Fund, Class II		8,514,994		219,007		(875,916	)		753,607		(2,687	)		8,609,005		638,650		-		-
MML Global Fund, Class I		10,337,781		519,100		(868,804	)		1,679,583		(132,336	)		11,535,324		980,062		-		-
MML High Yield Fund, Class II		11,812,135		40,694		(1,889,107	)		1,042,659		(290,173	)		10,716,208		1,109,338		-		-
MML Income & Growth Fund, Initial Class		12,229,220		199,335		(947,836	)		1,632,332		(215,102	)		12,897,949		1,360,543		-		-

154 

	Beginning Value as of 12/31/18		Purchases		Sales			Change in Unrealized Appreciation/ Depreciation		Net Realized Gain (Loss)			Value as of 3/31/19		Number of Shares Held as of 3/31/19		Dividend Income		Realized Gains Distributions
Conservative Allocation Fund (Continued)
MML Inflation-Protected and Income Fund, Initial Class	$	16,508,925	$	1,311,625	$	(642,351	)	$	599,229	$	(41,710	)	$	17,735,718		1,766,506	$	-	$	-
MML International Equity Fund, Class II		6,747,836		283,249		(251,473	)		636,377		12,127			7,428,116		762,640		-		-
MML Large Cap Growth Fund, Initial Class		2,599,324		644,037		(668,872	)		413,974		24,340			3,012,803		268,043		-		-
MML Managed Bond Fund, Initial Class		79,263,697		6,971,623		(4,709,644	)		3,166,161		(303,608	)		84,388,229		6,827,072		-		-
MML Mid Cap Growth Fund, Initial Class		6,778,479		107,193		(506,478	)		1,125,900		(43,264	)		7,461,830		460,891		-		-
MML Mid Cap Value Fund, Initial Class		7,785,334		319,877		(546,323	)		1,204,286		(149,381	)		8,613,793		813,389		-		-
MML Short-Duration Bond Fund, Class II		20,092,579		96,605		(1,294,342	)		347,655		(23,486	)		19,219,011		1,971,181		-		-
MML Small Cap Growth Equity Fund, Initial Class		1,441,789		190,260		(110,390	)		279,912		6,344			1,807,915		117,465		-		-
MML Small Company Value Fund, Class II		3,653,765		160,458		(175,362	)		468,825		(12,303	)		4,095,383		262,356		-		-
MML Small/Mid Cap Value Fund, Initial Class		1,673,757		237,413		(108,234	)		219,253		557			2,022,746		170,408		-		-
MML Strategic Emerging Markets Fund, Class II		500,495		1,524		(6,338	)		62,600		660			558,941		49,030		-		-
MML Total Return Bond Fund, Class II		51,392,846		2,659,332		(2,990,605	)		1,718,688		(68,722	)		52,711,539		5,024,932		-		-
Oppenheimer Discovery Mid Cap Growth Fund/VA, Non-Service Shares*		2,444,532		36,117		(242,439	)		466,246		(4,631	)		2,699,825		32,981		-		-
Oppenheimer Global Fund/VA, Non-Service Shares*		6,015,043		91,042		(767,295	)		967,459		8,686			6,314,935		142,260		-		-
Oppenheimer Global Multi-Alternatives Fund/VA, Non-Service Shares*		26,563,757		336,559		(900,000	)		819,363		(102,804	)		26,716,875		2,740,192		336,559		-
Oppenheimer International Growth Fund/VA, Non-Service Shares*		5,246,382		272,949		(405,293	)		653,715		(51,380	)		5,716,373		2,529,369		-		-
Oppenheimer Main Street Fund/VA, Non-Service Shares*		4,201,052		15,607		(64,857	)		609,924		805			4,762,531		155,081		-		-
	$	397,395,012	$	20,081,262	$	(30,003,607	)	$	27,076,175	$	(1,235,449	)	$	413,313,393			$	336,559	$	-

155 

	Beginning Value as of 12/31/18		Purchases		Sales			Change in Unrealized Appreciation/ Depreciation		Net Realized Gain (Loss)			Value as of 3/31/19		Number of Shares Held as of 3/31/19		Dividend Income		Realized Gains Distributions
Growth Allocation Fund
MML Blue Chip Growth Fund, Initial Class	$	61,820,595	$	411,261	$	(4,768,570	)	$	9,990,039	$	(149,892	)	$	67,303,433		3,968,363	$	-	$	-
MML Dynamic Bond Fund, Class II		81,481,511		3,107,484		(3,268,751	)		2,743,194		(49,274	)		84,014,164		8,460,641		-		-
MML Equity Income Fund, Initial Class		73,474,363		41,172		(6,652,912	)		6,581,332		1,225,184			74,669,139		6,702,795		-		-
MML Equity Index Fund, Class III		69,125,769		29,172		(13,384,548	)		7,120,091		1,961,412			64,851,896		2,034,888		-		-
MML Focused Equity Fund, Class II		19,201,581		2,411,622		(1,550,705	)		4,301,866		(1,810,471	)		22,553,893		3,740,281		-		-
MML Foreign Fund, Initial Class		62,924,066		1,904,141		(1,867,702	)		4,904,878		41,855			67,907,238		6,811,157		-		-
MML Fundamental Growth Fund, Class II		30,815,375		20,975		(2,615,997	)		5,320,516		(431,338	)		33,109,531		3,032,008		-		-
MML Fundamental Value Fund, Class II		64,870,915		36,710		(2,806,202	)		5,082,196		649,244			67,832,863		5,032,112		-		-
MML Global Fund, Class I		67,099,378		712,088		(4,416,048	)		10,261,438		(447,957	)		73,208,899		6,219,957		-		-
MML High Yield Fund, Class II		11,646,363		7,553		(705,254	)		839,065		(87,164	)		11,700,563		1,211,238		-		-
MML Income & Growth Fund, Initial Class		73,646,206		40,527		(5,300,237	)		9,180,318		(795,142	)		76,771,672		8,098,278		-		-
MML Inflation-Protected and Income Fund, Initial Class		57,831,762		2,537,886		(2,202,863	)		2,049,370		(134,995	)		60,081,160		5,984,179		-		-

 156

	Beginning Value as of 12/31/18		Purchases		Sales			Change in Unrealized Appreciation/ Depreciation		Net Realized Gain (Loss)			Value as of 3/31/19		Number of Shares Held as of 3/31/19		Dividend Income		Realized Gains Distributions
Growth Allocation Fund (Continued)
MML International Equity Fund, Class II	$	61,352,726	$	2,374,405	$	(1,781,186	)	$	5,906,419	$	(77,436	)	$	67,774,928		6,958,411	$	-	$	-
MML Large Cap Growth Fund, Initial Class		20,810,674		14,247		(2,359,745	)		3,345,073		(164,466	)		21,645,783		1,925,781		-		-
MML Managed Bond Fund, Initial Class		109,788,382		10,041,928		(4,804,848	)		4,274,193		(248,836	)		119,050,819		9,631,302		-		-
MML Mid Cap Growth Fund, Initial Class		65,525,098		36,817		(4,078,726	)		9,717,643		723,749			71,924,581		4,442,531		-		-
MML Mid Cap Value Fund, Initial Class		64,673,041		465,303		(4,043,456	)		8,610,267		(17,453	)		69,687,702		6,580,520		-		-
MML Short-Duration Bond Fund, Class II		41,566,339		23,928		(2,194,403	)		733,610		(58,963	)		40,070,511		4,109,796		-		-
MML Small Cap Growth Equity Fund, Initial Class		11,889,198		1,294,197		(704,663	)		2,480,401		(134,655	)		14,824,478		963,182		-		-
MML Small Company Value Fund, Class II		26,604,654		801,563		(1,076,930	)		3,697,105		(382,958	)		29,643,434		1,899,003		-		-
MML Small/Mid Cap Value Fund, Initial Class		21,784,982		486,535		(744,525	)		2,706,697		(91,613	)		24,142,076		2,033,873		-		-
MML Strategic Emerging Markets Fund,  Class II		51,435,567		3,092,917		(1,758,216	)		6,470,101		175,836			59,416,205		5,211,948		-		-
MML Total Return Bond Fund, Class II		71,142,702		5,513,203		(4,078,139	)		2,518,863		(200,749	)		74,895,880		7,139,741		-		-
Oppenheimer Discovery Mid Cap Growth Fund/VA, Non-Service Shares*		20,070,503		11,658		(905,487	)		3,749,430		55,734			22,981,838		280,746		-		-
Oppenheimer Global Fund/VA, Non-Service Shares*		32,160,543		18,545		(2,408,952	)		5,187,218		98,078			35,055,432		789,715		-		-
Oppenheimer Global Multi-Alternatives Fund/VA, Non-Service Shares*		123,894,119		1,582,606		(3,200,000	)		3,440,880		(86,397	)		125,631,208		12,885,252		1,582,606		-
Oppenheimer International Growth Fund/VA, Non-Service Shares*		31,899,741		480,693		(1,724,093	)		3,691,902		(86,167	)		34,262,076		15,160,211		-		-
Oppenheimer Main Street Fund/VA, Non-Service Shares*		24,624,971		13,521		(474,877	)		3,571,611		4,635			27,739,861		903,284		-		-
	$	1,453,161,124	$	37,512,657	$	(85,878,035	)	$	138,475,716	$	(520,199	)	$	1,542,751,263			$	1,582,606	$	-

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	Beginning Value as of 12/31/18		Purchases		Sales			Change in Unrealized Appreciation/ Depreciation		Net Realized Gain (Loss)			Value as of 3/31/19		Number of Shares Held as of 3/31/19		Dividend Income		Realized Gains Distributions
Moderate Allocation Fund
MML Blue Chip Growth Fund, Initial Class	$	69,294,777	$	871,427	$	(5,781,434	)	$	11,024,850	$	40,611		$	75,450,231		4,448,716	$	-	$	-
MML Dynamic Bond Fund, Class II		209,820,148		4,600,000		(7,142,336	)		7,079,501		(176,453	)		214,180,860		21,569,070		-		-
MML Equity Income Fund, Initial Class		82,090,173		11,391		(7,512,806	)		9,926,661		(1,095,840	)		83,419,579		7,488,293		-		-
MML Equity Index Fund, Class III		76,574,751		30,000		(19,347,434	)		7,111,148		2,826,858			67,195,323		2,108,419		-		-
MML Focused Equity Fund, Class II		20,985,975		3,688,429		(1,706,234	)		4,774,597		(2,007,634	)		25,735,133		4,267,850		-		-
MML Foreign Fund, Initial Class		68,158,972		688,349		(1,942,305	)		5,371,228		(51,955	)		72,224,289		7,244,161		-		-
MML Fundamental Growth Fund, Class II		40,049,374		10,709		(3,528,245	)		6,926,291		(580,574	)		42,877,555		3,926,516		-		-
MML Fundamental Value Fund, Class II		72,225,183		11,049		(3,477,556	)		6,719,382		(337,282	)		75,140,776		5,574,242		-		-
MML Global Fund, Class I		73,665,241		2,078,471		(5,555,593	)		11,488,674		(601,513	)		81,075,280		6,888,299		-		-
MML High Yield Fund, Class II		42,569,900		-		(1,936,020	)		3,017,660		(264,155	)		43,387,385		4,491,448		-		-
MML Income & Growth Fund, Initial Class		81,410,810		9,682		(4,956,739	)		9,998,028		(612,188	)		85,849,593		9,055,864		-		-
MML Inflation-Protected and Income Fund, Initial Class		62,730,545		4,738,823		(2,125,211	)		2,272,984		(155,204	)		67,461,937		6,719,316		-		-

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	Beginning Value as of 12/31/18		Purchases		Sales			Change in Unrealized Appreciation/ Depreciation		Net Realized Gain (Loss)			Value as of 3/31/19		Number of Shares Held as of 3/31/19		Dividend Income		Realized Gains Distributions
Moderate Allocation Fund (Continued)
MML International Equity Fund, Class II	$	65,866,175	$	2,438,303	$	(1,836,014	)	$	6,370,357	$	(88,401	)	$	72,750,420		7,469,242	$	-	$	-
MML Large Cap Growth Fund, Initial Class		22,092,695		136,191		(3,234,416	)		3,547,159		(202,508	)		22,339,121		1,987,466		-		-
MML Managed Bond Fund, Initial Class		261,870,348		16,039,075		(11,548,020	)		9,765,535		(358,260	)		275,768,678		22,309,896		-		-
MML Mid Cap Growth Fund, Initial Class		68,405,477		7,632		(4,990,775	)		10,690,025		192,779			74,305,138		4,589,570		-		-
MML Mid Cap Value Fund, Initial Class		69,126,568		929,870		(5,007,799	)		10,745,175		(1,495,112	)		74,298,702		7,015,930		-		-
MML Short-Duration Bond Fund, Class II		84,136,565		-		(4,414,291	)		1,473,627		(109,281	)		81,086,620		8,316,576		-		-
MML Small Cap Growth Equity Fund, Initial Class		12,860,106		1,287,047		(769,591	)		2,758,383		(221,270	)		15,914,675		1,034,015		-		-
MML Small Company Value Fund, Class II		27,837,569		984,456		(1,169,141	)		3,824,659		(365,090	)		31,112,453		1,993,110		-		-
MML Small/Mid Cap Value Fund, Initial Class		22,177,322		976,623		(781,399	)		2,830,490		(112,340	)		25,090,696		2,113,791		-		-
MML Strategic Emerging Markets Fund, Class II		52,900,676		2,261,649		(1,733,313	)		6,653,629		123,505			60,206,146		5,281,241		-		-
MML Total Return Bond Fund, Class II		175,042,376		9,231,763		(9,523,352	)		6,144,661		(517,784	)		180,377,664		17,195,202		-		-
Oppenheimer Discovery Mid Cap Growth Fund/VA, Non-Service Shares*		22,685,185		2,506		(1,972,658	)		4,153,670		115,739			24,984,442		305,209		-		-
Oppenheimer Global Fund/VA, Non-Service Shares*		37,665,635		5,468		(2,861,661	)		6,279,300		(97,639	)		40,991,103		923,431		-		-
Oppenheimer Global Multi-Alternatives Fund/VA, Non-Service Shares*		158,427,061		2,013,287		(4,900,000	)		4,411,703		(132,295	)		159,819,756		16,391,770		2,013,287		-
Oppenheimer International Growth Fund/VA, Non-Service Shares*		35,317,171		1,546,351		(1,299,458	)		4,263,471		(150,175	)		39,677,360		17,556,354		-		-
Oppenheimer Main Street Fund/VA, Non-Service Shares*		25,674,274		-		(439,724	)		3,724,925		4,132			28,963,607		943,133		-		-
	$	2,041,661,052	$	54,598,551	$	(121,493,525	)	$	173,347,773	$	(6,429,329	)	$	2,141,684,522			$	2,013,287	$	-

* Fund advised by OFI Global Asset Management.

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5. New Accounting Pronouncements

In October 2016, the SEC released its Final Rule on Investment Company Reporting Modernization (the “Rule”). The Rule, which introduced two new regulatory reporting forms for investment companies — Form N-PORT and Form N-CEN — also contains amendments to Regulation S-X which impact financial statement presentation, particularly the presentation of derivative investments, for all reporting periods ending after August 1, 2017. The Funds have adopted the Rule’s Regulation S-X amendments and the Funds’ financial statements are in compliance with those amendments. In December 2017, the SEC issued a temporary final rule (“Temporary Rule”) that provided for a nine-month delay of N-PORT filing with the SEC. Under the Temporary Rule, those funds subject to the original June 1, 2018 compliance date are required to gather and maintain all of the data required by Form N-PORT as of the original reporting date and such information is subject to examination by the SEC staff.

In August 2018, FASB issued Accounting Standards Update 2018-13 — Fair Value Measurement (Topic 820) Disclosure Framework — Changes to the Disclosure Requirements for Fair Value Measurement (“ASU 2018-13”). The amendments modify fair value measurement disclosures and are effective for all entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. Management is currently evaluating the implication, if any, of these changes and its impact on the Funds’ financial statements.

6. Legal Proceedings

On December 7, 2010, the Trust was named as a defendant and putative member of the proposed defendant class of shareholders named in an adversary proceeding brought by The Official Committee of Unsecured Creditors of Tribune Company (the “Official Committee”) in the U.S. Bankruptcy Court for the District of Delaware, in connection with Tribune Company’s Chapter 11 bankruptcy proceeding (In re Tribune Company). The proceeding relates to a leveraged buyout (“LBO”) transaction by which Tribune Company converted to a privately-held company in 2007, and the putative defendant class is comprised of beneficial owners of shares of Tribune Company who received proceeds (the “Proceeds”) of the LBO. The Official Committee seeks to recover payments of those Proceeds. On April 5, 2012, the adversary proceeding was transferred to the Southern District of New York for consolidated pretrial proceedings. The action is now being prosecuted by the litigation trustee (“Trustee”) for the Tribune Litigation Trust.

The potential amounts sought to be recovered from the Equity Income Fund and Equity Index Fund are approximately $4,562,800 and $207,706, respectively, plus interest and the Official Committee’s court costs.

In addition, on June 2, 2011, the Equity Income Fund was named as a defendant in two closely related, parallel adversary proceedings brought in connection with the Tribune Company’s LBO by Deutsche Bank Trust Company Americas, in its capacity as successor indenture trustee for a certain series of Senior Notes, Law Debenture Trust Company of New York, in its capacity as successor indenture trustee for a certain series of Senior Notes, and Wilmington Trust Company, in its capacity as successor indenture trustee for the PHONES Notes (together, the “Plaintiffs”), one in the United States District Court for the District of Massachusetts and one in the United States District Court for the District of Connecticut. The Plaintiffs also seek to recover payments of the Proceeds. On December 20, 2011, this action was transferred to the Southern District of New York for consolidated pretrial proceedings.

The Funds cannot predict the outcome of these proceedings. Accordingly, the Funds have not accrued any amounts related to these proceedings. If the proceedings were to be decided in a manner adverse to the Funds, or if the Funds were to enter into a settlement agreement with the Trustee or the Plaintiffs, as applicable, the payment of such judgment or settlement could potentially have a material adverse effect on the Funds’ net asset values depending on the net assets of each applicable Fund at the time of such judgment or settlement.

160