UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-Q

QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS

OF REGISTERED MANAGEMENT INVESTMENT COMPANY

Investment Company Act file number 811-02224

MML Series Investment Fund

(Exact name of registrant as specified in charter)

100 Bright Meadow Blvd., Enfield, CT 06082

(Address of principal executive offices) (Zipcode)

Jeffrey M. Dube

100 Bright Meadow Blvd., Enfield, CT 06082

(Name and address of agent for service)

Registrant’s telephone number, including area code: (860) 562-1000

Date of fiscal year end: 12/31/2015

Date of reporting period: 9/30/2015

Item 1. Schedule of Investments.

MML Aggressive Allocation Fund – Portfolio of Investments

September 30, 2015 (Unaudited)

	Number of Shares		Value
MUTUAL FUNDS — 100.1%
Equity Funds — 89.8%
MML Blue Chip Growth Fund, Initial Class (a)		640,584	$	9,205,186
MML Equity Income Fund, Initial Class (a)		527,788		5,631,500
MML Focused Equity Fund, Class II (a)		451,517		5,187,932
MML Foreign Fund, Initial Class (a)		624,884		5,817,670
MML Fundamental Growth Fund, Class II (a)		499,637		5,800,782
MML Fundamental Value Fund, Class II (a)		461,302		6,218,358
MML Global Fund, Class I (a)		662,129		7,482,054
MML Income & Growth Fund, Initial Class (a)		420,044		4,439,868
MML International Equity Fund, Class II (a)		668,551		5,662,631
MML Large Cap Growth Fund, Initial Class (a)		516,198		5,647,209
MML Mid Cap Growth Fund, Initial Class (a)		479,318		7,050,772
MML Mid Cap Value Fund, Initial Class (a)		654,320		6,732,952
MML Small Cap Growth Equity Fund, Initial Class (a)		130,768		1,741,172
MML Small Company Value Fund, Class II (a)		219,468		3,191,065
MML Small/Mid Cap Value Fund, Initial Class (a)		191,792		2,138,480
MML Strategic Emerging Markets Fund, Class II (a)		497,801		3,882,846
Oppenheimer Discovery Mid Cap Growth Fund/VA, Non-Service Shares (a) (b)		35,442		2,615,234
Oppenheimer Global Fund/VA, Non-Service Shares (a)		91,137		3,282,739
Oppenheimer Global Multi-Alternatives Fund/VA, Non-Service Shares (a)		1,157,153		11,328,524
Oppenheimer International Growth Fund/VA, Non-Service Shares (a)		1,158,373		2,420,999
				105,477,973
Fixed Income Funds — 10.3%
MML Dynamic Bond Fund, Class II (a)		224,411		2,223,916
MML Inflation-Protected and Income Fund, Initial Class (a)		308,440		3,112,161
MML Managed Bond Fund, Initial Class (a)		201,933		2,544,409

	Number of Shares		Value
MML Short-Duration Bond Fund, Class II (a)		259,954	$	2,573,542
MML Total Return Bond Fund, Class II (a)		154,742		1,583,011
				12,037,039
TOTAL MUTUAL FUNDS (Cost $127,677,130)				117,515,012
TOTAL LONG-TERM INVESTMENTS (Cost $127,677,130)				117,515,012
TOTAL INVESTMENTS — 100.1% (Cost $127,677,130) (c)				117,515,012
Other Assets/(Liabilities) — (0.1)%				(96,929	)
NET ASSETS — 100.0%			$	117,418,083

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) Non-income producing security.

(c) 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

September 30, 2015 (Unaudited)

	Number of Shares		Value
MUTUAL FUNDS — 100.1%
Equity Funds — 62.6%
American Funds Blue Chip Income and Growth Fund, Class 1		14,971,968	$	181,310,536
American Funds Growth-Income Fund, Class 1		5,183,623		223,258,651
American Funds International Fund, Class 1		4,026,528		71,913,786
				476,482,973
Fixed Income Funds — 37.5%
American Funds Bond Fund, Class 1		26,186,886		285,960,799
TOTAL MUTUAL FUNDS (Cost $729,522,846)				762,443,772
TOTAL LONG-TERM INVESTMENTS (Cost $729,522,846)				762,443,772
TOTAL INVESTMENTS — 100.1% (Cost $729,522,846) (a)				762,443,772
Other Assets/(Liabilities) — (0.1)%				(880,202	)
NET ASSETS — 100.0%			$	761,563,570

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

September 30, 2015 (Unaudited)

	Number of Shares		Value
MUTUAL FUNDS — 100.1%
Equity Funds — 100.1%
American Funds Growth Fund, Class 1		1,869,951	$	118,611,012
TOTAL MUTUAL FUNDS (Cost $116,946,412)				118,611,012
TOTAL LONG-TERM INVESTMENTS (Cost $116,946,412)				118,611,012
TOTAL INVESTMENTS — 100.1% (Cost $116,946,412) (a)				118,611,012
Other Assets/(Liabilities) — (0.1)%				(154,918	)
NET ASSETS — 100.0%			$	118,456,094

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

September 30, 2015 (Unaudited)

	Number of Shares		Value
MUTUAL FUNDS — 100.2%
Equity Funds — 100.2%
American Funds International Fund, Class 1		2,961,702	$	52,896,003
TOTAL MUTUAL FUNDS (Cost $53,193,976)				52,896,003
TOTAL LONG-TERM INVESTMENTS (Cost $53,193,976)				52,896,003
TOTAL INVESTMENTS — 100.2% (Cost $53,193,976) (a)				52,896,003
Other Assets/(Liabilities) — (0.2)%				(83,817	)
NET ASSETS — 100.0%			$	52,812,186

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

September 30, 2015 (Unaudited)

	Number of Shares		Value
MUTUAL FUNDS — 100.1%
Equity Funds — 50.9%
MML Blue Chip Growth Fund, Initial Class (a)		1,737,110	$	24,962,269
MML Equity Income Fund, Initial Class (a)		1,761,754		18,797,912
MML Focused Equity Fund, Class II (a)		872,853		10,029,086
MML Foreign Fund, Initial Class (a)		1,587,647		14,780,992
MML Fundamental Growth Fund, Class II (a)		1,394,963		16,195,516
MML Fundamental Value Fund, Class II (a)		1,561,548		21,049,664
MML Global Fund, Class I (a)		1,366,591		15,442,483
MML Income & Growth Fund, Initial Class (a)		1,600,011		16,912,115
MML International Equity Fund, Class II (a)		1,698,420		14,385,614
MML Large Cap Growth Fund, Initial Class (a)		1,441,069		15,765,297
MML Mid Cap Growth Fund, Initial Class (a)		1,025,118		15,079,486
MML Mid Cap Value Fund, Initial Class (a)		1,599,588		16,459,760
MML Small Cap Growth Equity Fund, Initial Class (a)		308,221		4,103,963
MML Small Company Value Fund, Class II (a)		490,325		7,129,331
MML Small/Mid Cap Value Fund, Initial Class (a)		388,879		4,335,999
Oppenheimer Discovery Mid Cap Growth Fund/VA, Non-Service Shares (a) (b)		73,499		5,423,485
Oppenheimer Global Fund/VA, Non-Service Shares (a)		348,716		12,560,758
Oppenheimer Global Multi-Alternatives Fund/VA, Non-Service Shares (a)		4,215,797		41,272,648
Oppenheimer International Growth Fund/VA, Non-Service Shares (a)		6,135,099		12,822,356
				287,508,734
Fixed Income Funds — 49.2%
MML Dynamic Bond Fund, Class II (a)		6,180,783		61,251,562
MML High Yield Fund, Class II (a)		2,080,270		20,074,608
MML Inflation-Protected and Income Fund, Initial Class (a)		1,998,259		20,162,431
MML Managed Bond Fund, Initial Class (a)		8,361,557		105,358,066
MML Short-Duration Bond Fund, Class II (a)		2,109,913		20,888,143

	Number of Shares		Value
MML Total Return Bond Fund, Class II (a)		4,857,376	$	49,690,959
				277,425,769
TOTAL MUTUAL FUNDS (Cost $588,080,003)				564,934,503
TOTAL LONG-TERM INVESTMENTS (Cost $588,080,003)				564,934,503
TOTAL INVESTMENTS — 100.1% (Cost $588,080,003) (c)				564,934,503
Other Assets/(Liabilities) — (0.1)%				(432,434	)
NET ASSETS — 100.0%			$	564,502,069

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) Non-income producing security.

(c) 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

September 30, 2015 (Unaudited)

	Number of Shares		Value
EQUITIES — 99.7%
COMMON STOCK — 99.7%
Basic Materials — 1.5%
Chemicals — 1.5%
Ashland, Inc.		10,300	$	1,036,386
Ecolab, Inc.		24,200		2,655,224
PPG Industries, Inc.		300		26,307
The Sherwin-Williams Co.		9,200		2,049,576
				5,767,493
Communications — 26.0%
Internet — 24.9%
Akamai Technologies, Inc. (a)		10,900		752,754
Alibaba Group Holding Ltd. Sponsored ADR (Cayman Islands) (a)		56,046		3,305,033
Alphabet, Inc. Class A (a)		15,300		9,767,061
Alphabet, Inc. Class C (a)		24,456		14,879,520
Amazon.com, Inc. (a)		48,650		24,903,448
Baidu, Inc. Sponsored ADR (Cayman Islands) (a)		15,400		2,116,114
Ctrip.com International Ltd. ADR (Cayman Islands) (a)		13,600		859,248
Expedia, Inc.		1,500		176,520
Facebook, Inc. Class A (a)		144,576		12,997,382
JD.com, Inc. ADR (Cayman Islands) (a)		18,300		476,898
LinkedIn Corp. Class A (a)		12,800		2,433,664
Netflix, Inc. (a)		57,700		5,958,102
The Priceline Group, Inc. (a)		11,100		13,729,146
Tencent Holdings Ltd.		280,600		4,726,581
Vipshop Holdings Ltd. ADR (Cayman Islands) (a)		93,600		1,572,480
				98,653,951
Media — 1.0%
Time Warner, Inc.		500		34,375
The Walt Disney Co.		36,300		3,709,860
				3,744,235
Telecommunications — 0.1%
T-Mobile US, Inc. (a)		10,700		425,967
				102,824,153
Consumer, Cyclical — 17.5%
Airlines — 1.3%
Alaska Air Group, Inc.		9,200		730,940
American Airlines Group, Inc.		116,200		4,512,046
Delta Air Lines, Inc.		600		26,922
				5,269,908
Apparel — 1.6%
Hanesbrands, Inc.		99,200		2,870,848
Nike, Inc. Class B		26,940		3,312,812

	Number of Shares		Value
VF Corp.		3,600	$	245,556
				6,429,216
Auto Manufacturers — 0.7%
Tesla Motors, Inc. (a)		11,490		2,854,116
Automotive & Parts — 0.1%
BorgWarner, Inc.		3,700		153,883
Delphi Automotive PLC		3,800		288,952
				442,835
Leisure Time — 1.2%
Carnival Corp.		4,600		228,620
Norwegian Cruise Line Holdings Ltd. (a)		42,700		2,446,710
Royal Caribbean Cruises Ltd.		23,000		2,049,070
				4,724,400
Lodging — 1.2%
Hilton Worldwide Holdings, Inc.		102,428		2,349,698
Las Vegas Sands Corp.		2,300		87,331
Marriott International, Inc. Class A		15,187		1,035,753
MGM Resorts International (a)		71,600		1,321,020
				4,793,802
Retail — 11.4%
AutoZone, Inc. (a)		3,400		2,461,022
CarMax, Inc. (a)		15,200		901,664
Chipotle Mexican Grill, Inc. (a)		3,100		2,232,775
Costco Wholesale Corp.		5,200		751,764
CVS Health Corp.		53,700		5,180,976
The Home Depot, Inc.		40,100		4,631,149
L Brands, Inc.		14,000		1,261,820
Lowe’s Cos., Inc.		81,100		5,589,412
O’Reilly Automotive, Inc. (a)		20,400		5,100,000
PVH Corp.		4,900		499,506
Ross Stores, Inc.		52,100		2,525,287
Starbucks Corp.		120,700		6,860,588
Tractor Supply Co.		32,800		2,765,696
Walgreens Boots Alliance, Inc.		48,900		4,063,590
				44,825,249
				69,339,526
Consumer, Non-cyclical — 31.4%
Beverages — 0.3%
Constellation Brands, Inc. Class A		9,500		1,189,495
Monster Beverage Corp. (a)		1,200		162,168
				1,351,663
Biotechnology — 9.0%
Alexion Pharmaceuticals, Inc. (a)		55,700		8,710,923
Amgen, Inc.		200		27,664
Biogen, Inc. (a)		14,300		4,172,883
Celgene Corp. (a)		76,000		8,220,920
Gilead Sciences, Inc.		77,400		7,599,906

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

6

MML Blue Chip Growth Fund – Portfolio of Investments (Continued)

	Number of Shares		Value
Incyte Corp. (a)		3,400	$	375,122
Regeneron Pharmaceuticals, Inc. (a)		8,900		4,139,746
Vertex Pharmaceuticals, Inc. (a)		22,300		2,322,322
				35,569,486
Commercial Services — 8.0%
MasterCard, Inc. Class A		118,900		10,715,268
McKesson Corp.		49,500		9,158,985
Verisk Analytics, Inc. (a)		600		44,346
Visa, Inc. Class A		166,820		11,620,681
				31,539,280
Cosmetics & Personal Care — 0.4%
The Estee Lauder Cos., Inc. Class A		18,200		1,468,376
Health Care – Products — 2.2%
Becton, Dickinson & Co.		21,100		2,799,126
Henry Schein, Inc. (a)		300		39,816
Hologic, Inc. (a)		12,300		481,299
Intuitive Surgical, Inc. (a)		6,000		2,757,480
Medtronic PLC		14,527		972,437
Stryker Corp.		18,930		1,781,313
				8,831,471
Health Care – Services — 4.7%
Aetna, Inc.		15,000		1,641,150
Anthem, Inc.		26,700		3,738,000
Cigna Corp.		5,500		742,610
Humana, Inc.		4,600		823,400
Thermo Fisher Scientific, Inc.		44,400		5,429,232
UnitedHealth Group, Inc.		52,200		6,055,722
				18,430,114
Pharmaceuticals — 6.8%
AbbVie, Inc.		2,300		125,143
Allergan PLC (a)		33,854		9,201,856
AmerisourceBergen Corp.		16,400		1,557,836
Bristol-Myers Squibb Co.		49,400		2,924,480
Cardinal Health, Inc.		33,300		2,558,106
Eli Lilly & Co.		35,800		2,996,102
Perrigo Co. PLC		300		47,181
Shire PLC Sponsored ADR (Ireland)		1,800		369,414
Valeant Pharmaceuticals International, Inc. (a)		39,300		7,010,334
				26,790,452
				123,980,842
Energy — 0.5%
Oil & Gas — 0.5%
Cimarex Energy Co.		4,800		491,904
Concho Resources, Inc. (a)		4,000		393,200
EQT Corp.		15,700		1,016,889
Pioneer Natural Resources Co.		1,800		218,952
				2,120,945

	Number of Shares		Value
Financial — 6.5%
Banks — 0.9%
The Bank of New York Mellon Corp.		19,500	$	763,425
Northern Trust Corp.		6,200		422,592
State Street Corp.		35,500		2,385,955
				3,571,972
Diversified Financial — 3.6%
Ameriprise Financial, Inc.		22,200		2,422,686
Citigroup, Inc.		4,800		238,128
Intercontinental Exchange, Inc.		15,650		3,677,593
Morgan Stanley		149,100		4,696,650
TD Ameritrade Holding Corp.		105,500		3,359,120
				14,394,177
Insurance — 0.4%
Aon PLC		500		44,305
Marsh & McLennan Cos., Inc.		26,600		1,389,052
				1,433,357
Real Estate Investment Trusts (REITS) — 1.6%
American Tower Corp.		69,870		6,147,163
				25,546,669
Industrial — 8.2%
Aerospace & Defense — 1.6%
The Boeing Co.		46,600		6,102,270
Lockheed Martin Corp.		1,600		331,696
				6,433,966
Airlines — 0.8%
United Continental Holdings, Inc. (a)		59,600		3,161,780
Machinery – Diversified — 1.3%
Flowserve Corp.		2,100		86,394
Roper Technologies, Inc.		16,000		2,507,200
Wabtec Corp.		27,100		2,386,155
				4,979,749
Manufacturing — 3.3%
Danaher Corp.		145,760		12,420,210
Textron, Inc.		20,400		767,856
				13,188,066
Transportation — 1.2%
Canadian Pacific Railway Ltd.		8,900		1,277,773
FedEx Corp.		18,000		2,591,640
J.B. Hunt Transport Services, Inc.		10,500		749,700
Kansas City Southern		600		54,528
Union Pacific Corp.		1,900		167,979
				4,841,620
				32,605,181

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

7

MML Blue Chip Growth Fund – Portfolio of Investments (Continued)

	Number of Shares		Value
Technology — 8.1%
Computers — 2.1%
Apple, Inc.		63,740	$	7,030,522
Cognizant Technology Solutions Corp. Class A (a)		13,400		838,974
IHS, Inc. Class A (a)		5,400		626,400
				8,495,896
Software — 6.0%
Electronic Arts, Inc. (a)		21,100		1,429,525
Fiserv, Inc. (a)		41,840		3,623,763
Microsoft Corp.		179,200		7,931,392
Red Hat, Inc. (a)		34,648		2,490,498
Salesforce.com, Inc. (a)		89,400		6,207,042
Servicenow, Inc. (a)		27,900		1,937,655
				23,619,875
				32,115,771
TOTAL COMMON STOCK (Cost $280,899,958)				394,300,580
TOTAL EQUITIES (Cost $280,899,958)				394,300,580
MUTUAL FUNDS — 0.0%
Diversified Financial — 0.0%
T. Rowe Price Reserve Investment Fund		1,001		1,001
TOTAL MUTUAL FUNDS (Cost $1,001)				1,001
TOTAL LONG-TERM INVESTMENTS (Cost $280,900,959)				394,301,581
	Principal Amount
SHORT-TERM INVESTMENTS — 0.6%
Repurchase Agreement — 0.6%
State Street Bank & Trust Co. Repurchase Agreement, dated 9/30/15, 0.010%, due 10/01/15 (b)	$	2,203,557		2,203,557
TOTAL SHORT-TERM INVESTMENTS (Cost $2,203,557)				2,203,557
TOTAL INVESTMENTS — 100.3% (Cost $283,104,516) (c)				396,505,138
Other Assets/(Liabilities) — (0.3)%				(998,123	)
NET ASSETS — 100.0%			$	395,507,015

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

ADR American Depositary Receipt

(a) Non-income producing security.

(b) Maturity value of $2,203,558. Collateralized by U.S. Government Agency obligations with a rate of 1.500%, maturity date of 1/31/22, and an aggregate market value, including accrued interest, of $2,252,250.

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

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

8

MML Conservative Allocation Fund – Portfolio of Investments

September 30, 2015 (Unaudited)

	Number of Shares		Value
MUTUAL FUNDS — 100.1%
Equity Funds — 41.7%
MML Blue Chip Growth Fund, Initial Class (a)		1,198,318	$	17,219,828
MML Equity Income Fund, Initial Class (a)		1,340,706		14,305,331
MML Focused Equity Fund, Class II (a)		498,620		5,729,148
MML Foreign Fund, Initial Class (a)		949,862		8,843,218
MML Fundamental Growth Fund, Class II (a)		985,516		11,441,838
MML Fundamental Value Fund, Class II (a)		1,158,187		15,612,362
MML Global Fund, Class I (a)		930,667		10,516,538
MML Income & Growth Fund, Initial Class (a)		993,768		10,504,132
MML International Equity Fund, Class II (a)		1,016,118		8,606,520
MML Large Cap Growth Fund, Initial Class (a)		1,018,518		11,142,583
MML Mid Cap Growth Fund, Initial Class (a)		573,212		8,431,952
MML Mid Cap Value Fund, Initial Class (a)		1,026,661		10,564,342
MML Small Cap Growth Equity Fund, Initial Class (a)		173,366		2,308,364
MML Small Company Value Fund, Class II (a)		345,691		5,026,345
MML Small/Mid Cap Value Fund, Initial Class (a)		199,812		2,227,903
Oppenheimer Discovery Mid Cap Growth Fund/VA, Non-Service Shares (a) (b)		41,098		3,032,617
Oppenheimer Global Fund/VA, Non-Service Shares (a)		220,792		7,952,937
Oppenheimer Global Multi-Alternatives Fund/VA, Non-Service Shares (a)		3,064,095		29,997,494
Oppenheimer International Growth Fund/VA, Non-Service Shares (a)		3,192,477		6,672,276
				190,135,728
Fixed Income Funds — 58.4%
MML Dynamic Bond Fund, Class II (a)		5,885,168		58,322,018
MML High Yield Fund, Class II (a)		1,869,921		18,044,742
MML Inflation-Protected and Income Fund, Initial Class (a)		1,838,131		18,546,738
MML Managed Bond Fund, Initial Class (a)		8,520,377		107,359,251
MML Short-Duration Bond Fund, Class II (a)		1,737,558		17,201,821

	Number of Shares		Value
MML Total Return Bond Fund, Class II (a)		4,595,344	$	47,010,368
				266,484,938
TOTAL MUTUAL FUNDS (Cost $480,731,076)				456,620,666
TOTAL LONG-TERM INVESTMENTS (Cost $480,731,076)				456,620,666
TOTAL INVESTMENTS — 100.1% (Cost $480,731,076) (c)				456,620,666
Other Assets/(Liabilities) — (0.1)%				(355,176	)
NET ASSETS — 100.0%			$	456,265,490

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) Non-income producing security.

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

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

9

MML Equity Income Fund – Portfolio of Investments

September 30, 2015 (Unaudited)

	Number of Shares		Value
EQUITIES — 96.4%
COMMON STOCK — 96.4%
Basic Materials — 5.0%
Chemicals — 1.3%
E.I. du Pont de Nemours & Co.		93,600	$	4,511,520
Potash Corp. of Saskatchewan, Inc.		73,400		1,508,370
				6,019,890
Forest Products & Paper — 1.5%
International Paper Co.		130,400		4,927,816
Rayonier, Inc.		88,800		1,959,816
				6,887,632
Iron & Steel — 0.8%
Nucor Corp.		98,900		3,713,695
Mining — 1.4%
Newmont Mining Corp.		112,200		1,803,054
Vulcan Materials Co.		51,500		4,593,800
				6,396,854
				23,018,071
Communications — 12.2%
Media — 4.1%
Cablevision Systems Corp. Class A		119,200		3,870,424
Comcast Corp. Class A		51,600		2,935,008
The New York Times Co. Class A		83,600		987,316
News Corp. Class A		125,400		1,582,548
Time Warner, Inc.		30,833		2,119,769
Twenty-First Century Fox Class A		41,700		1,125,066
Twenty-First Century Fox, Inc. Class B		65,600		1,775,792
Viacom, Inc. Class B		27,400		1,182,310
The Walt Disney Co.		31,600		3,229,520
				18,807,753
Telecommunications — 8.1%
AT&T, Inc.		223,700		7,288,146
CenturyLink, Inc.		84,205		2,115,229
Cisco Systems, Inc.		176,500		4,633,125
Corning, Inc.		236,900		4,055,728
Harris Corp.		70,900		5,186,335
QUALCOMM, Inc.		88,600		4,760,478
Telefonica SA		181,022		2,194,048
Verizon Communications, Inc.		125,435		5,457,677
Vodafone Group PLC		332,563		1,051,577
				36,742,343
				55,550,096
Consumer, Cyclical — 8.1%
Auto Manufacturers — 1.1%
Ford Motor Co.		167,300		2,270,261
General Motors Co.		94,249		2,829,355
				5,099,616

	Number of Shares		Value
Automotive & Parts — 0.8%
Johnson Controls, Inc.		85,100	$	3,519,736
Distribution & Wholesale — 0.7%
Genuine Parts Co.		37,500		3,108,375
Leisure Time — 0.8%
Carnival Corp.		76,000		3,777,200
Lodging — 0.6%
Las Vegas Sands Corp.		70,500		2,676,885
Retail — 3.1%
Coach, Inc.		39,000		1,128,270
Kohl’s Corp.		83,800		3,880,778
Macy’s, Inc.		65,900		3,381,988
Staples, Inc.		277,800		3,258,594
Wal-Mart Stores, Inc.		38,100		2,470,404
				14,120,034
Toys, Games & Hobbies — 1.0%
Mattel, Inc.		217,400		4,578,444
				36,880,290
Consumer, Non-cyclical — 12.1%
Agriculture — 1.1%
Archer-Daniels-Midland Co.		122,500		5,077,625
Beverages — 1.0%
PepsiCo, Inc.		48,300		4,554,690
Commercial Services — 0.3%
Western Union Co.		78,200		1,435,752
Cosmetics & Personal Care — 0.2%
Avon Products, Inc.		200,700		652,275
Foods — 1.6%
Campbell Soup Co.		49,000		2,483,320
Kellogg Co.		33,800		2,249,390
McCormick & Co., Inc.		32,300		2,654,414
				7,387,124
Health Care – Products — 2.0%
Becton, Dickinson & Co.		4,200		557,172
Johnson & Johnson		92,500		8,634,875
				9,192,047
Household Products — 0.8%
The Clorox Co.		33,200		3,835,596
Pharmaceuticals — 5.1%
Bristol-Myers Squibb Co.		109,500		6,482,400
GlaxoSmithKline PLC		127,812		2,450,120
Merck & Co., Inc.		130,100		6,425,639
Pfizer, Inc.		248,854		7,816,504
				23,174,663
				55,309,772

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

10

MML Equity Income Fund – Portfolio of Investments (Continued)

	Number of Shares		Value
Energy — 10.7%
Coal — 0.3%
CONSOL Energy, Inc.		121,400	$	1,189,720
Oil & Gas — 9.7%
Anadarko Petroleum Corp.		42,200		2,548,458
Apache Corp.		140,800		5,513,728
BP PLC Sponsored ADR (United Kingdom)		57,600		1,760,256
Canadian Natural Resources Ltd.		139,900		2,721,055
Chevron Corp.		93,800		7,398,944
ConocoPhillips		16,900		810,524
Diamond Offshore Drilling, Inc.		72,400		1,252,520
Exxon Mobil Corp.		111,000		8,252,850
Hess Corp.		103,700		5,191,222
Occidental Petroleum Corp.		53,200		3,519,180
Royal Dutch Shell PLC A Shares Sponsored ADR (United Kingdom)		112,500		5,331,375
				44,300,112
Pipelines — 0.7%
Columbia Pipeline Group, Inc.		168,500		3,081,865
				48,571,697
Financial — 22.4%
Banks — 11.1%
Bank of America Corp.		579,077		9,022,020
The Bank of New York Mellon Corp.		50,500		1,977,075
Northern Trust Corp.		86,300		5,882,208
PNC Financial Services Group, Inc.		72,100		6,431,320
Royal Bank of Scotland Group PLC (a)		460,170		2,198,943
State Street Corp.		52,800		3,548,688
SunTrust Banks, Inc.		92,600		3,541,024
U.S. Bancorp		202,100		8,288,121
Wells Fargo & Co.		186,300		9,566,505
				50,455,904
Diversified Financial — 4.7%
American Express Co.		76,000		5,633,880
JP Morgan Chase & Co.		244,300		14,894,971
Och-Ziff Capital Management Group LLC		103,100		900,063
				21,428,914
Insurance — 5.2%
The Chubb Corp.		24,700		3,029,455
Loews Corp.		139,700		5,048,758
Marsh & McLennan Cos., Inc.		139,300		7,274,246
MetLife, Inc.		112,900		5,323,235
Sun Life Financial, Inc.		64,100		2,067,866
Willis Group Holdings PLC		23,800		975,086
				23,718,646
Real Estate Investment Trusts (REITS) — 1.4%
Digital Realty Trust, Inc.		42,800		2,795,696

	Number of Shares		Value
Weyerhaeuser Co.		133,542	$	3,651,038
				6,446,734
				102,050,198
Industrial — 13.2%
Aerospace & Defense — 1.6%
The Boeing Co.		49,700		6,508,215
United Technologies Corp.		6,100		542,839
				7,051,054
Building Materials — 0.8%
Masco Corp.		65,300		1,644,254
USG Corp. (a)		76,400		2,033,768
				3,678,022
Electrical Components & Equipment — 1.0%
Emerson Electric Co.		100,100		4,421,417
Electronics — 0.4%
Tyco International PLC		54,500		1,823,570
Hand & Machine Tools — 0.2%
Stanley Black & Decker, Inc.		11,000		1,066,780
Machinery – Construction & Mining — 0.2%
Joy Global, Inc.		61,400		916,702
Machinery – Diversified — 1.4%
Deere & Co.		48,200		3,566,800
Flowserve Corp.		40,200		1,653,828
Xylem, Inc.		34,300		1,126,755
				6,347,383
Manufacturing — 5.8%
Eaton Corp. PLC		41,884		2,148,649
General Electric Co.		609,600		15,374,112
Honeywell International, Inc.		30,700		2,906,983
Illinois Tool Works, Inc.		72,500		5,967,475
				26,397,219
Packaging & Containers — 0.5%
WestRock Co.		45,094		2,319,636
Transportation — 1.3%
United Parcel Service, Inc. Class B		61,100		6,029,959
				60,051,742
Technology — 5.8%
Computers — 1.8%
Computer Sciences Corp.		26,800		1,644,984
EMC Corp.		94,600		2,285,536
International Business Machines Corp.		28,100		4,073,657
				8,004,177
Semiconductors — 2.5%
Analog Devices, Inc.		62,700		3,536,907
Applied Materials, Inc.		243,600		3,578,484
Texas Instruments, Inc.		90,400		4,476,608
				11,591,999

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

11

MML Equity Income Fund – Portfolio of Investments (Continued)

	Number of Shares		Value
Software — 1.5%
CA, Inc.		52,300	$	1,427,790
Microsoft Corp.		125,800		5,567,908
				6,995,698
				26,591,874
Utilities — 6.9%
Electric — 6.0%
The AES Corp.		150,200		1,470,458
Duke Energy Corp.		80,033		5,757,574
Edison International		7,900		498,253
Entergy Corp.		76,200		4,960,620
Exelon Corp.		105,100		3,121,470
FirstEnergy Corp.		151,100		4,730,941
PG&E Corp.		55,000		2,904,000
Xcel Energy, Inc.		113,400		4,015,494
				27,458,810
Gas — 0.9%
NiSource, Inc.		215,700		4,001,235
				31,460,045
TOTAL COMMON STOCK (Cost $371,402,190)				439,483,785
TOTAL EQUITIES (Cost $371,402,190)				439,483,785
MUTUAL FUNDS — 0.0%
Diversified Financial — 0.0%
T. Rowe Price Reserve Investment Fund		1,146		1,146
TOTAL MUTUAL FUNDS (Cost $1,146)				1,146
TOTAL LONG-TERM INVESTMENTS (Cost $371,403,336)				439,484,931
	Principal Amount
SHORT-TERM INVESTMENTS — 2.0%
Repurchase Agreement — 2.0%
State Street Bank & Trust Co. Repurchase Agreement, dated 9/30/15, 0.010%, due 10/01/15 (b)	$	9,304,643		9,304,643
TOTAL SHORT-TERM INVESTMENTS (Cost $9,304,643)				9,304,643
TOTAL INVESTMENTS — 98.4%
(Cost $380,707,979) (c)				448,789,574
Other Assets/(Liabilities) — 1.6%				7,068,674
NET ASSETS — 100.0%			$	455,858,248

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

ADR American Depositary Receipt

(a) Non-income producing security.

(b) Maturity value of $9,304,646. Collateralized by U.S. Government Agency obligations with a rate of 1.500%, maturity date of 1/31/22, and an aggregate market value, including accrued interest, of $9,494,100.

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

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

12

MML Equity Index Fund – Portfolio of Investments

September 30, 2015 (Unaudited)

	Number of Shares		Value
EQUITIES — 98.9%
COMMON STOCK — 98.9%
Basic Materials — 2.5%
Chemicals — 2.1%
Air Products & Chemicals, Inc.		4,621	$	589,547
Airgas, Inc.		1,597		142,660
CF Industries Holdings, Inc.		5,537		248,611
The Dow Chemical Co.		27,653		1,172,487
E.I. du Pont de Nemours & Co.		21,642		1,043,144
Eastman Chemical Co.		3,541		229,174
Ecolab, Inc.		6,348		696,503
FMC Corp.		3,191		108,207
International Flavors & Fragrances, Inc.		1,940		200,324
LyondellBasell Industries NV Class A		8,900		741,904
Monsanto Co.		11,174		953,589
The Mosaic Co.		8,053		250,529
PPG Industries, Inc.		6,492		569,283
Praxair, Inc.		6,844		697,130
The Sherwin-Williams Co.		1,893		421,723
Sigma-Aldrich Corp.		2,839		394,394
				8,459,209
Forest Products & Paper — 0.1%
International Paper Co.		9,969		376,728
Iron & Steel — 0.1%
Nucor Corp.		7,621		286,169
Mining — 0.2%
Alcoa, Inc.		31,216		301,547
Freeport-McMoRan, Inc.		27,156		263,142
Newmont Mining Corp.		12,629		202,948
Vulcan Materials Co.		3,162		282,050
				1,049,687
				10,171,793
Communications — 13.2%
Advertising — 0.2%
The Interpublic Group of Companies, Inc.		9,748		186,479
Nielsen Holdings PLC		8,767		389,869
Omnicom Group, Inc.		5,770		380,243
				956,591
Internet — 5.8%
Akamai Technologies, Inc. (a)		4,296		296,682
Alphabet, Inc. Class A (a)		6,924		4,420,074
Alphabet, Inc. Class C (a)		7,065		4,298,487
Amazon.com, Inc. (a)		9,160		4,688,912
eBay, Inc. (a)		26,763		654,088
Equinix, Inc.		1,352		369,637
Expedia, Inc.		2,372		279,137

	Number of Shares		Value
F5 Networks, Inc. (a)		1,695	$	196,281
Facebook, Inc. Class A (a)		53,971		4,851,993
Netflix, Inc. (a)		10,174		1,050,567
The Priceline Group, Inc. (a)		1,211		1,497,837
Symantec Corp.		16,339		318,120
TripAdvisor, Inc. (a)		2,725		171,730
VeriSign, Inc. (a)		2,384		168,215
Yahoo!, Inc. (a)		20,667		597,483
				23,859,243
Media — 3.2%
Cablevision Systems Corp. Class A		5,385		174,851
CBS Corp. Class B		10,612		423,419
Comcast Corp. Class A		50,507		2,872,838
Comcast Corp. Special Class A		8,788		503,025
Discovery Communications, Inc. Series A (a)		3,603		93,786
Discovery Communications, Inc. Series C (a)		6,134		148,995
The McGraw Hill Financial, Inc.		6,501		562,336
News Corp. Class A		9,094		114,766
News Corp. Class B		2,568		32,922
Scripps Networks Interactive Class A		2,281		112,202
TEGNA, Inc.		5,453		122,093
Time Warner Cable, Inc.		6,759		1,212,362
Time Warner, Inc.		19,478		1,339,112
Twenty-First Century Fox Class A		29,161		786,764
Twenty-First Century Fox, Inc. Class B		10,298		278,767
Viacom, Inc. Class B		8,297		358,016
The Walt Disney Co.		37,088		3,790,394
				12,926,648
Telecommunications — 4.0%
AT&T, Inc.		146,935		4,787,142
CenturyLink, Inc.		13,478		338,568
Cisco Systems, Inc.		121,465		3,188,456
Corning, Inc.		29,280		501,274
Frontier Communications Corp.		27,494		130,597
Harris Corp.		2,948		215,646
Juniper Networks, Inc.		8,469		217,738
Level 3 Communications, Inc. (a)		6,884		300,762
Motorola Solutions, Inc.		3,861		264,015
QUALCOMM, Inc.		37,525		2,016,218
Verizon Communications, Inc.		97,130		4,226,126
				16,186,542
				53,929,024
Consumer, Cyclical — 10.6%
Airlines — 0.5%
American Airlines Group, Inc.		16,054		623,377
Delta Air Lines, Inc.		19,022		853,517
Southwest Airlines Co.		15,701		597,266
				2,074,160

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

13

MML Equity Index Fund – Portfolio of Investments (Continued)

	Number of Shares		Value
Apparel — 0.9%
Hanesbrands, Inc.		9,652	$	279,329
Michael Kors Holdings Ltd. (a)		4,616		194,980
Nike, Inc. Class B		16,181		1,989,778
Ralph Lauren Corp.		1,429		168,851
Under Armour, Inc. Class A (a)		4,294		415,573
VF Corp.		8,136		554,956
				3,603,467
Auto Manufacturers — 0.7%
Ford Motor Co.		93,056		1,262,770
General Motors Co.		34,414		1,033,108
Paccar, Inc.		8,451		440,889
				2,736,767
Automotive & Parts — 0.4%
BorgWarner, Inc.		5,374		223,505
Delphi Automotive PLC		6,780		515,551
The Goodyear Tire & Rubber Co.		6,447		189,090
Johnson Controls, Inc.		15,688		648,856
				1,577,002
Distribution & Wholesale — 0.2%
Fastenal Co.		6,937		253,964
Fossil Group, Inc. (a)		967		54,036
Genuine Parts Co.		3,601		298,487
W.W. Grainger, Inc.		1,452		312,194
				918,681
Home Builders — 0.1%
D.R. Horton, Inc.		7,773		228,215
Lennar Corp. Class A		4,141		199,306
PulteGroup, Inc.		7,674		144,809
				572,330
Home Furnishing — 0.1%
Harman International Industries, Inc.		1,722		165,295
Whirlpool Corp.		1,886		277,732
				443,027
Housewares — 0.1%
Newell Rubbermaid, Inc.		6,424		255,097
Leisure Time — 0.3%
Carnival Corp.		11,047		549,036
Harley-Davidson, Inc.		4,951		271,810
Royal Caribbean Cruises Ltd.		4,096		364,912
				1,185,758
Lodging — 0.2%
Marriott International, Inc. Class A		4,757		324,427
Starwood Hotels & Resorts Worldwide, Inc.		4,097		272,369
Wyndham Worldwide Corp.		2,817		202,542
Wynn Resorts Ltd.		1,934		102,734
				902,072

	Number of Shares		Value
Retail — 6.9%
Advance Auto Parts, Inc.		1,744	$	330,540
AutoNation, Inc. (a)		1,872		108,913
AutoZone, Inc. (a)		738		534,187
Bed Bath & Beyond, Inc. (a)		4,059		231,444
Best Buy Co., Inc.		7,329		272,052
CarMax, Inc. (a)		4,954		293,871
Chipotle Mexican Grill, Inc. (a)		747		538,027
Coach, Inc.		6,661		192,703
Costco Wholesale Corp.		10,500		1,517,985
CVS Health Corp.		26,620		2,568,298
Darden Restaurants, Inc.		2,720		186,429
Dollar General Corp.		7,062		511,571
Dollar Tree, Inc. (a)		5,608		373,829
GameStop Corp. Class A		2,559		105,456
The Gap, Inc.		5,695		162,307
The Home Depot, Inc.		30,675		3,542,656
Kohl’s Corp.		4,686		217,009
L Brands, Inc.		6,136		553,038
Lowe’s Cos., Inc.		22,102		1,523,270
Macy’s, Inc.		7,886		404,709
McDonald’s Corp.		22,488		2,215,743
Nordstrom, Inc.		3,328		238,651
O’Reilly Automotive, Inc. (a)		2,375		593,750
PVH Corp.		1,988		202,657
Ross Stores, Inc.		9,843		477,090
Signet Jewelers Ltd.		1,909		259,872
Staples, Inc.		15,451		181,240
Starbucks Corp.		35,440		2,014,410
Target Corp.		15,016		1,181,159
Tiffany & Co.		2,651		204,710
The TJX Cos., Inc.		16,095		1,149,505
Tractor Supply Co.		3,265		275,305
Urban Outfitters, Inc. (a)		2,267		66,604
Wal-Mart Stores, Inc.		37,695		2,444,144
Walgreens Boots Alliance, Inc.		20,843		1,732,053
Yum! Brands, Inc.		10,314		824,604
				28,229,791
Textiles — 0.1%
Cintas Corp.		2,132		182,819
Mohawk Industries, Inc. (a)		1,516		275,594
				458,413
Toys, Games & Hobbies — 0.1%
Hasbro, Inc.		2,666		192,325
Mattel, Inc.		8,140		171,429
				363,754
				43,320,319
Consumer, Non-cyclical — 24.5%
Agriculture — 1.7%
Altria Group, Inc.		46,853		2,548,803
Archer-Daniels-Midland Co.		14,547		602,973

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

14

MML Equity Index Fund – Portfolio of Investments (Continued)

	Number of Shares		Value
Philip Morris International, Inc.		37,007	$	2,935,766
Reynolds American, Inc.		19,786		875,926
				6,963,468
Beverages — 2.3%
Brown-Forman Corp. Class B		2,536		245,738
The Coca-Cola Co.		93,491		3,750,859
Coca-Cola Enterprises, Inc.		5,048		244,071
Constellation Brands, Inc. Class A		4,108		514,363
Dr. Pepper Snapple Group, Inc.		4,570		361,258
Keurig Green Mountain, Inc.		2,870		149,642
Molson Coors Brewing Co. Class B		3,778		313,650
Monster Beverage Corp. (a)		3,631		490,693
PepsiCo, Inc.		35,086		3,308,610
				9,378,884
Biotechnology — 2.9%
Alexion Pharmaceuticals, Inc. (a)		5,399		844,350
Amgen, Inc.		18,107		2,504,560
Biogen, Inc. (a)		5,613		1,637,929
Celgene Corp. (a)		18,895		2,043,872
Gilead Sciences, Inc.		35,074		3,443,916
Regeneron Pharmaceuticals, Inc. (a)		1,846		858,648
Vertex Pharmaceuticals, Inc. (a)		5,847		608,907
				11,942,182
Commercial Services — 2.6%
The ADT Corp.		3,989		119,271
Alliance Data Systems Corp. (a)		1,468		380,183
Automatic Data Processing, Inc.		11,128		894,246
Equifax, Inc.		2,824		274,436
H&R Block, Inc.		6,653		240,839
MasterCard, Inc. Class A		23,839		2,148,371
McKesson Corp.		5,552		1,027,286
Moody’s Corp.		4,160		408,512
Paychex, Inc.		7,676		365,608
PayPal Holdings, Inc. (a)		26,497		822,467
Quanta Services, Inc. (a)		4,868		117,854
Robert Half International, Inc.		3,173		162,331
Total System Services, Inc.		4,045		183,764
United Rentals, Inc. (a)		2,308		138,595
Visa, Inc. Class A		46,610		3,246,853
Western Union Co.		12,086		221,899
				10,752,515
Cosmetics & Personal Care — 1.6%
Colgate-Palmolive Co.		21,489		1,363,692
The Estee Lauder Cos., Inc. Class A		5,403		435,914
The Procter & Gamble Co.		64,788		4,660,849
				6,460,455
Foods — 1.8%
Campbell Soup Co.		4,303		218,076
ConAgra Foods, Inc.		10,271		416,078
General Mills, Inc.		14,309		803,164

	Number of Shares		Value
The Hershey Co.		3,493	$	320,937
Hormel Foods Corp.		3,209		203,162
The J.M. Smucker Co.		2,459		280,547
Kellogg Co.		6,100		405,955
The Kraft Heinz Co.		14,225		1,004,001
The Kroger Co.		23,202		836,896
McCormick & Co., Inc.		2,774		227,967
Mondelez International, Inc. Class A		38,489		1,611,535
Sysco Corp.		13,220		515,183
Tyson Foods, Inc. Class A		7,269		313,294
Whole Foods Market, Inc.		8,612		272,570
				7,429,365
Health Care – Products — 3.2%
Baxter International, Inc.		13,053		428,791
Becton, Dickinson & Co.		5,026		666,749
Boston Scientific Corp. (a)		32,043		525,826
C.R. Bard, Inc.		1,773		330,328
Edwards Lifesciences Corp. (a)		2,574		365,946
Henry Schein, Inc. (a)		1,982		263,051
Intuitive Surgical, Inc. (a)		885		406,728
Johnson & Johnson		66,154		6,175,476
Medtronic PLC		33,779		2,261,166
St. Jude Medical, Inc.		6,728		424,469
Stryker Corp.		7,555		710,925
Varian Medical Systems, Inc. (a)		2,329		171,834
Zimmer Biomet Holdings, Inc.		4,083		383,516
				13,114,805
Health Care – Services — 2.2%
Aetna, Inc.		8,336		912,042
Anthem, Inc.		6,250		875,000
Cigna Corp.		6,151		830,508
DaVita HealthCare Partners, Inc. (a)		4,056		293,370
HCA Holdings, Inc. (a)		7,637		590,798
Humana, Inc.		3,539		633,481
Laboratory Corporation of America Holdings (a)		2,389		259,135
Quest Diagnostics, Inc.		3,461		212,748
Tenet Healthcare Corp. (a)		2,326		85,876
Thermo Fisher Scientific, Inc.		9,534		1,165,817
UnitedHealth Group, Inc.		22,775		2,642,128
Universal Health Services, Inc. Class B		2,192		273,584
				8,774,487
Household Products — 0.4%
Avery Dennison Corp.		2,190		123,888
The Clorox Co.		3,070		354,677
Kimberly-Clark Corp.		8,711		949,848
				1,428,413
Pharmaceuticals — 5.8%
Abbott Laboratories		35,653		1,433,964
AbbVie, Inc.		39,540		2,151,371
Allergan PLC (a)		9,402		2,555,558

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

15

MML Equity Index Fund – Portfolio of Investments (Continued)

	Number of Shares		Value
AmerisourceBergen Corp.		4,908	$	466,211
Baxalta, Inc.		12,915		406,952
Bristol-Myers Squibb Co.		39,843		2,358,706
Cardinal Health, Inc.		7,822		600,886
DENTSPLY International, Inc.		3,342		169,005
Eli Lilly & Co.		23,281		1,948,387
Endo International PLC (a)		4,972		344,460
Express Scripts Holding Co. (a)		16,166		1,308,799
Mallinckrodt PLC (a)		2,811		179,735
Mead Johnson Nutrition Co.		4,813		338,835
Merck & Co., Inc.		67,242		3,321,082
Mylan NV (a)		9,871		397,406
Patterson Cos., Inc.		2,026		87,625
Perrigo Co. PLC		3,485		548,086
Pfizer, Inc.		147,324		4,627,447
Zoetis, Inc.		10,963		451,456
				23,695,971
				99,940,545
Diversified — 0.0%
Holding Company – Diversified — 0.0%
Leucadia National Corp.		8,071		163,518
Energy — 6.9%
Coal — 0.0%
CONSOL Energy, Inc.		5,456		53,469
Energy – Alternate Sources — 0.0%
First Solar, Inc. (a)		1,828		78,147
Oil & Gas — 5.2%
Anadarko Petroleum Corp.		12,145		733,436
Apache Corp.		9,064		354,946
Cabot Oil & Gas Corp.		9,942		217,332
Chesapeake Energy Corp.		12,218		89,558
Chevron Corp.		44,959		3,546,366
Cimarex Energy Co.		2,241		229,658
ConocoPhillips		29,479		1,413,813
Devon Energy Corp.		9,166		339,967
Diamond Offshore Drilling, Inc.		1,495		25,863
Ensco PLC Class A		5,621		79,144
EOG Resources, Inc.		13,126		955,573
EQT Corp.		3,611		233,884
Exxon Mobil Corp.		99,606		7,405,706
Helmerich & Payne, Inc.		2,610		123,349
Hess Corp.		5,793		289,998
Marathon Oil Corp.		16,058		247,293
Marathon Petroleum Corp.		12,760		591,171
Murphy Oil Corp.		3,883		93,969
Newfield Exploration Co. (a)		3,954		130,087
Noble Energy, Inc.		10,202		307,896
Occidental Petroleum Corp.		18,227		1,205,716
Phillips 66		11,443		879,280
Pioneer Natural Resources Co.		3,575		434,863
Range Resources Corp.		4,088		131,307
Southwestern Energy Co. (a)		9,054		114,895

	Number of Shares		Value
Tesoro Corp.		2,964	$	288,219
Valero Energy Corp.		11,877		713,808
				21,177,097
Oil & Gas Services — 1.1%
Baker Hughes, Inc.		10,371		539,707
Cameron International Corp. (a)		4,551		279,067
FMC Technologies, Inc. (a)		5,450		168,950
Halliburton Co.		20,456		723,119
National Oilwell Varco, Inc.		9,155		344,686
Schlumberger Ltd.		30,211		2,083,653
Transocean Ltd.		8,277		106,939
				4,246,121
Pipelines — 0.6%
Columbia Pipeline Group, Inc.		7,615		139,278
Kinder Morgan, Inc.		42,966		1,189,299
ONEOK, Inc.		4,936		158,939
Spectra Energy Corp.		15,987		419,979
The Williams Cos., Inc.		16,299		600,618
				2,508,113
				28,062,947
Financial — 16.0%
Banks — 4.5%
Bank of America Corp.		249,987		3,894,797
The Bank of New York Mellon Corp.		26,402		1,033,638
BB&T Corp.		18,657		664,189
Capital One Financial Corp.		12,956		939,569
Comerica, Inc.		4,286		176,155
Fifth Third Bancorp		19,230		363,639
Huntington Bancshares, Inc.		19,156		203,054
KeyCorp		19,959		259,667
M&T Bank Corp.		3,182		388,045
Northern Trust Corp.		5,477		373,312
PNC Financial Services Group, Inc.		12,266		1,094,127
Regions Financial Corp.		31,596		284,680
State Street Corp.		9,732		654,088
SunTrust Banks, Inc.		12,377		473,297
U.S. Bancorp		39,524		1,620,879
Wells Fargo & Co.		111,556		5,728,401
Zions Bancorp		4,952		136,378
				18,287,915
Diversified Financial — 4.7%
Affiliated Managers Group, Inc. (a)		1,298		221,945
American Express Co.		20,330		1,507,063
Ameriprise Financial, Inc.		4,249		463,693
BlackRock, Inc.		3,055		908,771
The Charles Schwab Corp.		28,559		815,645
Citigroup, Inc.		71,888		3,566,364
CME Group, Inc.		8,066		748,041
Discover Financial Services		10,399		540,644
E*TRADE Financial Corp. (a)		6,886		181,308

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

16

MML Equity Index Fund – Portfolio of Investments (Continued)

	Number of Shares		Value
Franklin Resources, Inc.		9,186	$	342,270
The Goldman Sachs Group, Inc.		9,611		1,670,007
Intercontinental Exchange, Inc.		2,638		619,904
Invesco Ltd.		10,238		319,733
JP Morgan Chase & Co.		88,326		5,385,236
Legg Mason, Inc.		2,610		108,602
Morgan Stanley		36,355		1,145,183
The Nasdaq, Inc.		2,825		150,657
Navient Corp.		8,856		99,541
T. Rowe Price Group, Inc.		6,097		423,742
				19,218,349
Insurance — 4.1%
ACE Ltd.		7,748		801,143
Aflac, Inc.		10,270		596,995
The Allstate Corp.		9,563		556,949
American International Group, Inc.		30,901		1,755,795
Aon PLC		6,709		594,484
Assurant, Inc.		1,575		124,441
Berkshire Hathaway, Inc. Class B (a)		44,751		5,835,530
The Chubb Corp.		5,430		665,990
Cincinnati Financial Corp.		3,504		188,515
Genworth Financial, Inc. Class A (a)		12,309		56,868
The Hartford Financial Services Group, Inc.		9,899		453,176
Lincoln National Corp.		6,009		285,187
Loews Corp.		6,842		247,270
Marsh & McLennan Cos., Inc.		12,652		660,687
MetLife, Inc.		26,665		1,257,255
Principal Financial Group, Inc.		6,551		310,124
The Progressive Corp.		13,984		428,470
Prudential Financial, Inc.		10,765		820,401
Torchmark Corp.		2,775		156,510
The Travelers Cos., Inc.		7,434		739,906
Unum Group		5,972		191,582
XL Group PLC		7,230		262,594
				16,989,872
Real Estate — 0.1%
CBRE Group, Inc. (a)		6,912		221,184
Real Estate Investment Trusts (REITS) — 2.5%
American Tower Corp.		10,084		887,190
Apartment Investment & Management Co. Class A		3,749		138,788
AvalonBay Communities, Inc.		3,181		556,102
Boston Properties, Inc.		3,683		436,067
Crown Castle International Corp.		7,975		628,988
Equity Residential		8,705		653,920
Essex Property Trust, Inc.		1,566		349,876
General Growth Properties, Inc.		13,974		362,905
HCP, Inc.		11,090		413,103
Host Hotels & Resorts, Inc.		18,045		285,292
Iron Mountain, Inc.		4,622		143,374

	Number of Shares		Value
Kimco Realty Corp.		9,915	$	242,223
The Macerich Co.		3,215		246,976
Plum Creek Timber Co., Inc.		4,202		166,021
Prologis, Inc.		12,534		487,573
Public Storage		3,513		743,456
Realty Income Corp.		5,590		264,910
Simon Property Group, Inc.		7,393		1,358,242
SL Green Realty Corp.		2,362		255,474
Ventas, Inc.		7,905		443,154
Vornado Realty Trust		4,237		383,110
Welltower, Inc.		8,389		568,103
Weyerhaeuser Co.		12,203		333,630
				10,348,477
Savings & Loans — 0.1%
Hudson City Bancorp, Inc.		11,583		117,799
People’s United Financial, Inc.		7,247		113,995
				231,794
				65,297,591
Industrial — 9.5%
Aerospace & Defense — 2.0%
The Boeing Co.		15,247		1,996,595
General Dynamics Corp.		7,243		999,172
L-3 Communications Holdings, Inc.		1,919		200,574
Lockheed Martin Corp.		6,376		1,321,809
Northrop Grumman Corp.		4,472		742,128
Raytheon Co.		7,248		791,916
Rockwell Collins, Inc.		3,138		256,814
United Technologies Corp.		19,811		1,762,981
				8,071,989
Airlines — 0.1%
United Continental Holdings, Inc. (a)		9,027		478,882
Building Materials — 0.1%
Martin Marietta Materials, Inc.		1,606		244,032
Masco Corp.		8,173		205,796
				449,828
Electrical Components & Equipment — 0.2%
AMETEK, Inc.		5,756		301,154
Emerson Electric Co.		15,705		693,690
				994,844
Electronics — 0.5%
Agilent Technologies, Inc.		7,846		269,353
Allegion PLC		2,268		130,773
Amphenol Corp. Class A		7,358		374,964
FLIR Systems, Inc.		3,300		92,367
Garmin Ltd.		2,815		101,002
PerkinElmer, Inc.		2,726		125,287
TE Connectivity Ltd.		9,608		575,423
Tyco International PLC		10,114		338,414
Waters Corp. (a)		1,950		230,510
				2,238,093

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

17

MML Equity Index Fund – Portfolio of Investments (Continued)

	Number of Shares		Value
Engineering & Construction — 0.1%
Fluor Corp.		3,432	$	145,345
Jacobs Engineering Group, Inc. (a)		2,961		110,830
				256,175
Environmental Controls — 0.3%
Republic Services, Inc.		5,762		237,394
Stericycle, Inc. (a)		2,043		284,610
Waste Management, Inc.		10,101		503,131
				1,025,135
Hand & Machine Tools — 0.1%
Snap-on, Inc.		1,385		209,052
Stanley Black & Decker, Inc.		3,650		353,977
				563,029
Machinery – Construction & Mining — 0.3%
Caterpillar, Inc.		14,369		939,158
Ingersoll-Rand PLC		6,345		322,136
Joy Global, Inc.		2,356		35,175
				1,296,469
Machinery – Diversified — 0.5%
Cummins, Inc.		3,964		430,411
Deere & Co.		7,450		551,300
Flowserve Corp.		3,209		132,018
Rockwell Automation, Inc.		3,200		324,704
Roper Technologies, Inc.		2,410		377,647
Xylem, Inc.		4,284		140,730
				1,956,810
Manufacturing — 3.3%
3M Co.		14,924		2,115,775
Danaher Corp.		14,202		1,210,152
Dover Corp.		3,716		212,481
Eaton Corp. PLC		11,200		574,560
General Electric Co.		241,158		6,082,005
Honeywell International, Inc.		18,673		1,768,146
Illinois Tool Works, Inc.		7,877		648,356
Leggett & Platt, Inc.		3,276		135,135
Parker Hannifin Corp.		3,332		324,204
Pentair PLC		4,346		221,820
Textron, Inc.		6,633		249,666
				13,542,300
Metal Fabricate & Hardware — 0.2%
Precision Castparts Corp.		3,292		756,205
Packaging & Containers — 0.2%
Ball Corp.		3,270		203,394
Owens-Illinois, Inc. (a)		3,777		78,260
Sealed Air Corp.		4,941		231,634
WestRock Co.		6,298		323,969
				837,257
Transportation — 1.6%
American ExpressNorfolk Southern Corp.		7,195		549,698

	Number of Shares		Value
C.H. Robinson Worldwide, Inc.		3,385	$	229,435
CSX Corp.		23,543		633,307
Expeditors International of Washington, Inc.		4,555		214,313
FedEx Corp.		6,269		902,611
J.B. Hunt Transport Services, Inc.		2,192		156,509
Kansas City Southern		2,623		238,378
Ryder System, Inc.		1,246		92,254
Union Pacific Corp.		20,728		1,832,562
United Parcel Service, Inc. Class B		16,683		1,646,445
				6,495,512
				38,962,528
Technology — 12.6%
Computers — 5.9%
Accenture PLC Class A		14,935		1,467,513
Apple, Inc.		136,213		15,024,294
Cognizant Technology Solutions Corp. Class A (a)		14,532		909,849
Computer Sciences Corp.		3,308		203,045
EMC Corp.		45,971		1,110,660
Hewlett-Packard Co.		43,230		1,107,120
International Business Machines Corp.		21,526		3,120,624
NetApp, Inc.		7,170		212,232
SanDisk Corp.		4,849		263,446
Seagate Technology PLC		7,214		323,187
Teradata Corp. (a)		3,309		95,829
Western Digital Corp.		5,503		437,158
				24,274,957
Office Equipment/Supplies — 0.1%
Pitney Bowes, Inc.		4,911		97,483
Xerox Corp.		23,995		233,472
				330,955
Semiconductors — 2.4%
Altera Corp.		7,209		361,027
Analog Devices, Inc.		7,489		422,454
Applied Materials, Inc.		28,656		420,957
Avago Technologies Ltd.		6,201		775,187
Broadcom Corp. Class A		13,349		686,539
Intel Corp.		113,537		3,422,005
KLA-Tencor Corp.		3,748		187,400
Lam Research Corp.		3,781		247,013
Linear Technology Corp.		5,684		229,349
Microchip Technology, Inc.		5,035		216,958
Micron Technology, Inc. (a)		25,852		387,263
NVIDIA Corp.		12,330		303,935
Qorvo, Inc. (a)		3,555		160,153
Skyworks Solutions, Inc.		4,568		384,671
Texas Instruments, Inc.		24,499		1,213,190
Xilinx, Inc.		6,217		263,601
				9,681,702

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

18

MML Equity Index Fund – Portfolio of Investments (Continued)

	Number of Shares		Value
Software — 4.2%
Activision Blizzard, Inc.		11,943	$	368,919
Adobe Systems, Inc. (a)		11,882		976,938
Autodesk, Inc. (a)		5,420		239,239
CA, Inc.		7,436		203,003
Cerner Corp. (a)		7,337		439,926
Citrix Systems, Inc. (a)		3,867		267,906
The Dun & Bradstreet Corp.		847		88,935
Electronic Arts, Inc. (a)		7,451		504,805
Fidelity National Information Services, Inc.		6,712		450,241
Fiserv, Inc. (a)		5,610		485,882
Intuit, Inc.		6,622		587,702
Microsoft Corp.		191,033		8,455,121
Oracle Corp.		77,674		2,805,585
Red Hat, Inc. (a)		4,393		315,769
Salesforce.com, Inc. (a)		14,817		1,028,744
				17,218,715
				51,506,329
Utilities — 3.1%
Electric — 2.9%
The AES Corp.		16,331		159,880
Ameren Corp.		5,851		247,322
American Electric Power Co., Inc.		11,737		667,366
CenterPoint Energy, Inc.		10,414		187,869
CMS Energy Corp.		6,604		233,253
Consolidated Edison, Inc.		6,970		465,945
Dominion Resources, Inc.		14,188		998,551
DTE Energy Co.		4,273		343,421
Duke Energy Corp.		16,436		1,182,406
Edison International		7,777		490,495
Entergy Corp.		4,282		278,758
Eversource Energy		7,554		382,383
Exelon Corp.		20,652		613,364
FirstEnergy Corp.		10,120		316,857
NextEra Energy, Inc.		10,992		1,072,270
NRG Energy, Inc.		7,852		116,602
Pepco Holdings, Inc.		6,057		146,701
PG&E Corp.		11,671		616,229
Pinnacle West Capital Corp.		2,618		167,919
PPL Corp.		16,000		526,240
Public Service Enterprise Group, Inc.		12,058		508,365
SCANA Corp.		3,400		191,284
The Southern Co.		21,674		968,828
TECO Energy, Inc.		5,672		148,947
WEC Energy Group, Inc.		7,547		394,104
Xcel Energy, Inc.		12,173		431,046
				11,856,405
Gas — 0.2%
AGL Resources, Inc.		2,834		172,988
NiSource, Inc.		7,615		141,258

	Number of Shares		Value
Sempra Energy		5,621	$	543,663
				857,909
				12,714,314
TOTAL COMMON STOCK (Cost $240,694,389)				404,068,908
TOTAL EQUITIES (Cost $240,694,389)				404,068,908
TOTAL LONG-TERM INVESTMENTS (Cost $240,694,389)				404,068,908
	Principal Amount
SHORT-TERM INVESTMENTS — 1.0%
Repurchase Agreement — 0.8%
State Street Bank & Trust Co. Repurchase Agreement, dated 9/30/15, 0.010%, due 10/01/15 (b)	$	3,291,749		3,291,749
Time Deposits — 0.0%
Euro Time Deposit 0.010% 10/01/15		4,048		4,048
U.S. Treasury Bills — 0.2%
U.S. Treasury Bill (c) 0.000% 10/08/15		605,000		604,995
TOTAL SHORT-TERM INVESTMENTS (Cost $3,900,792)				3,900,792
TOTAL INVESTMENTS — 99.9%
(Cost $244,595,181) (d)				407,969,700
Other Assets/(Liabilities) — 0.1%				479,439
NET ASSETS — 100.0%			$	408,449,139

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

(a) Non-income producing security.

(b) Maturity value of $3,291,750. Collateralized by U.S. Government Agency obligations with a rate of 1.500%, maturity date of 1/31/22, and an aggregate market value, including accrued interest, of $3,361,050.

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

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

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

19

MML Focused Equity Fund – Portfolio of Investments

September 30, 2015 (Unaudited)

	Number of Shares		Value
EQUITIES — 92.5%
COMMON STOCK — 92.5%
Basic Materials — 2.1%
Mining — 2.1%
Glencore PLC ADR (Switzerland)		1,109,100	$	3,061,116
Communications — 5.5%
Internet — 2.0%
Amazon.com, Inc. (a)		5,600		2,866,584
Media — 3.5%
Tribune Media Co.		145,000		5,162,000
				8,028,584
Consumer, Cyclical — 13.4%
Auto Manufacturers — 6.6%
General Motors Co.		320,000		9,606,400
Retail — 6.8%
CarMax, Inc. (a)		63,700		3,778,684
Tiffany & Co.		80,500		6,216,210
				9,994,894
				19,601,294
Energy — 7.2%
Oil & Gas — 4.0%
Anadarko Petroleum Corp.		98,000		5,918,220
Oil & Gas Services — 3.2%
Halliburton Co.		44,000		1,555,400
NOW, Inc. (a)		210,519		3,115,681
				4,671,081
				10,589,301
Financial — 36.9%
Banks — 7.0%
Wells Fargo & Co.		201,000		10,321,350
Diversified Financial — 12.6%
BlackRock, Inc.		23,800		7,079,786
Franklin Resources, Inc.		90,000		3,353,400
JP Morgan Chase & Co.		131,000		7,987,070
				18,420,256
Insurance — 12.9%
American International Group, Inc.		190,000		10,795,800
Aon PLC		91,500		8,107,816
				18,903,616
Real Estate — 4.4%
CBRE Group, Inc. (a)		200,500		6,416,000
				54,061,222
Industrial — 8.2%
Machinery – Construction & Mining — 4.0%
Caterpillar, Inc.		90,500		5,915,080
Machinery – Diversified — 4.2%
Cummins, Inc.		55,900		6,069,622
				11,984,702

	Number of Shares		Value
Technology — 19.2%
Computers — 2.5%
Apple, Inc.		33,000	$	3,639,900
Semiconductors — 10.9%
Applied Materials, Inc.		363,670		5,342,312
Intel Corp.		350,000		10,549,000
				15,891,312
Software — 5.8%
Microsoft Corp.		193,000		8,542,180
				28,073,392
TOTAL COMMON STOCK (Cost $133,459,840)				135,399,611
TOTAL EQUITIES (Cost $133,459,840)				135,399,611
TOTAL LONG-TERM INVESTMENTS (Cost $133,459,840)				135,399,611
	Principal Amount
SHORT-TERM INVESTMENTS — 9.8%
Repurchase Agreement — 9.8%
State Street Bank & Trust Co. Repurchase Agreement, dated 9/30/15, 0.010%, due 10/01/15 (b)	$	14,292,484		14,292,484
TOTAL SHORT-TERM INVESTMENTS (Cost $14,292,484)				14,292,484
TOTAL INVESTMENTS — 102.3% (Cost $147,752,324) (c)				149,692,095
Other Assets/(Liabilities) — (2.3)%				(3,420,343	)
NET ASSETS — 100.0%			$	146,271,752

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

ADR American Depositary Receipt

(a) Non-income producing security.

(b) Maturity value of $14,292,488. Collateralized by U.S. Government Agency obligations with a rate of 1.750%, maturity date of 9/30/22, and an aggregate market value, including accrued interest, of $14,580,119.

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

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

20

MML Foreign Fund – Portfolio of Investments

September 30, 2015 (Unaudited)

	Number of Shares		Value
EQUITIES — 94.7%
COMMON STOCK — 94.7%
Bermuda — 0.7%
Kunlun Energy Co. Ltd		1,700,000	$	1,221,131
Noble Group Ltd. (a)		4,670,400		1,366,200
				2,587,331
Brazil — 0.8%
Embraer SA Sponsored ADR (Brazil)		84,639		2,165,066
Petroleo Brasileiro SA Sponsored ADR (Brazil) (b)		164,712		606,140
				2,771,206
Cayman Islands — 2.1%
Cheung Kong Property Holdings Ltd.		367,254		2,691,549
CK Hutchison Holdings Ltd.		367,254		4,801,772
				7,493,321
China — 3.9%
China Life Insurance Co. Ltd.		1,251,000		4,366,732
China Telecom Corp. Ltd. Class H		9,617,643		4,635,124
CRRC Corp. Ltd. (b)		1,616,100		2,072,303
Sinopharm Group Co. Ltd. Class H		568,800		2,004,444
Weichai Power Co. Ltd. Class H		1,090,000		1,020,743
				14,099,346
France — 12.2%
AXA SA		234,467		5,692,191
BNP Paribas		128,360		7,558,572
Cie Generale des Etablissements Michelin Class B		56,000		5,110,105
Compagnie de Saint-Gobain		96,920		4,210,172
Credit Agricole SA		223,230		2,561,341
Sanofi		93,118		8,870,946
Technip SA		49,930		2,359,007
Total SA		112,762		5,083,884
Vivendi SA		77,292		1,829,884
				43,276,102
Germany — 11.5%
Bayer AG		55,480		7,090,801
Deutsche Boerse AG		45,950		3,955,594
Deutsche Lufthansa AG (b)		128,000		1,776,776
Deutsche Post AG		66,911		1,851,867
HeidelbergCement AG		72,710		4,978,725
Infineon Technologies AG		308,437		3,466,243
Lanxess AG		36,220		1,692,193
Merck KGaA		58,070		5,140,976
Metro AG		83,660		2,307,905
MorphoSys AG (b)		20,350		1,356,083
Muenchener Rueckversicherungs AG		10,850		2,021,306
SAP AG Sponsored ADR (Germany)		20,068		1,300,206
Siemens AG		43,856		3,918,237
				40,856,912

	Number of Shares		Value
Hong Kong — 1.8%
AIA Group Ltd.		485,200	$	2,526,215
China Mobile Ltd.		342,000		4,068,464
				6,594,679
Ireland — 1.6%
CRH PLC		215,342		5,696,560
Israel — 1.9%
Teva Pharmaceutical Industries Ltd. Sponsored ADR (Israel)		118,139		6,670,128
Italy — 3.0%
ENI SpA		276,870		4,356,369
Intesa Sanpaolo SpA		616,558		2,177,374
UniCredit SpA		647,756		4,036,993
				10,570,736
Japan — 7.3%
ITOCHU Corp. (a)		235,300		2,495,779
Konica Minolta Holdings, Inc.		344,300		3,634,488
Nissan Motor Co. Ltd. (a)		593,270		5,464,888
SoftBank Group Corp.		69,200		3,183,920
Suntory Beverage & Food Ltd.		112,800		4,340,926
Toshiba Corp. (a) (b)		667,000		1,684,389
Toyota Motor Corp. Sponsored ADR (Japan)		45,239		5,305,630
				26,110,020
Luxembourg — 0.5%
Subsea 7 SA (a) (b)		231,820		1,743,975
Netherlands — 6.6%
Akzo Nobel NV		82,060		5,334,775
ING Groep NV		464,630		6,595,742
Koninklijke Philips Electronics NV		97,720		2,304,214
NN Group NV		63,590		1,824,143
QIAGEN NV (b)		69,390		1,789,763
SBM Offshore NV (a) (b)		167,468		2,120,348
TNT Express NV		461,170		3,513,539
				23,482,524
Norway — 1.8%
StatoilHydro ASA		90,840		1,325,078
Telenor ASA		268,156		5,016,178
				6,341,256
Portugal — 0.7%
Galp Energia SGPS SA		242,320		2,390,545
Republic of Korea — 5.0%
Hana Financial Group, Inc.		79,353		1,772,857
Hyundai Mobis		16,941		3,291,144
KB Financial Group, Inc. Sponsored ADR (Republic of Korea)		80,916		2,378,121
POSCO ADR (Republic of Korea)		76,271		2,671,010

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

21

MML Foreign Fund – Portfolio of Investments (Continued)

	Number of Shares		Value
Samsung Electronics Co., Ltd.		8,124	$	7,812,824
				17,925,956
Russia — 0.6%
MMC Norilsk Nickel PJSC ADR (Russia)		145,469		2,090,430
Singapore — 2.5%
DBS Group Holdings, Ltd.		385,379		4,402,992
Singapore Telecommunications Ltd.		1,468,000		3,723,878
Singapore Telecommunications Ltd.		340,700		854,979
				8,981,849
Spain — 1.7%
Repsol YPF SA		81,144		945,547
Telefonica SA Sponsored ADR (Spain) (a)		419,792		5,054,296
				5,999,843
Sweden — 1.2%
Getinge AB Class B		128,140		2,861,507
Telefonaktiebolaget LM Ericsson Sponsored ADR (Sweden)		133,854		1,309,092
				4,170,599
Switzerland — 6.4%
Credit Suisse Group		229,021		5,509,717
Novartis AG		39,920		3,677,221
Roche Holding AG		33,660		8,898,156
Swiss Re AG		53,250		4,577,335
				22,662,429
Taiwan — 0.5%
Taiwan Semiconductor Manufacturing Co. Ltd.		416,275		1,661,148
Thailand — 0.7%
Bangkok Bank PCL		565,500		2,482,269
United Kingdom — 19.7%
Aviva PLC		691,025		4,737,020
BAE Systems PLC		585,150		3,972,715
Barclays PLC		1,139,640		4,213,309
BP PLC		861,244		4,365,365
GlaxoSmithKline PLC		355,714		6,818,936
Glencore PLC		922,750		1,285,852
HSBC Holdings PLC		781,600		5,844,413
Kingfisher PLC		1,039,414		5,652,101
Lloyds Banking Group PLC		3,390,640		3,865,239
Marks & Spencer Group PLC		725,600		5,513,875
Petrofac Ltd. (a)		190,850		2,224,549
Rexam PLC		328,524		2,604,281
Royal Dutch Shell PLC Class A		2,397		56,525
Royal Dutch Shell PLC Class B		178,194		4,226,700
Sky PLC		290,060		4,589,945

	Number of Shares		Value
Standard Chartered PLC		230,980	$	2,245,564
Tesco PLC		1,243,680		3,455,834
Vodafone Group PLC Sponsored ADR (United Kingdom)		144,110		4,574,051
				70,246,274
TOTAL COMMON STOCK (Cost $345,907,891)				336,905,438
TOTAL EQUITIES (Cost $345,907,891)				336,905,438
MUTUAL FUNDS — 5.2%
United States — 5.2%
State Street Navigator Securities Lending Prime Portfolio (c)		18,306,009		18,306,009
TOTAL MUTUAL FUNDS (Cost $18,306,009)				18,306,009
TOTAL LONG-TERM INVESTMENTS (Cost $364,213,900)				355,211,447
	Principal Amount
SHORT-TERM INVESTMENTS — 3.4%
Repurchase Agreement — 3.4%
State Street Bank & Trust Co. Repurchase Agreement, dated 9/30/15, 0.010%, due 10/01/15 (d)	$	11,992,434		11,992,434
TOTAL SHORT-TERM INVESTMENTS (Cost $11,992,434)				11,992,434
TOTAL INVESTMENTS — 103.3% (Cost $376,206,334) (e)				367,203,881
Other Assets/(Liabilities) — (3.3)%				(11,611,567	)
NET ASSETS — 100.0%			$	355,592,314

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

ADR American Depositary Receipt

(a) Denotes all or a portion of security on loan. The total value of securities on loan as of September 30, 2015, was $17,286,373 or 4.86% 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).

(b) Non-income producing security.

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

22

MML Foreign Fund – Portfolio of Investments (Continued)

Notes to Portfolio of Investments (Continued)

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

(d) Maturity value of $11,992,438. Collateralized by U.S. Government Agency obligations with a rate of 1.500%, maturity date of 1/31/22, and an aggregate market value, including accrued interest, of $12,236,400.

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

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

23

MML Fundamental Growth Fund – Portfolio of Investments

September 30, 2015 (Unaudited)

	Number of Shares		Value
EQUITIES — 97.9%
COMMON STOCK — 97.9%
Basic Materials — 0.5%
Chemicals — 0.5%
The Sherwin-Williams Co.		4,203	$	936,344
Communications — 19.7%
Advertising — 0.3%
Nielsen Holdings PLC		10,427		463,689
Internet — 13.9%
Alibaba Group Holding Ltd. Sponsored ADR (Cayman Islands) (a)		11,941		704,161
Alphabet, Inc. Class C (a)		12,117		7,372,225
Amazon.com, Inc. (a)		10,166		5,203,874
Baidu, Inc. Sponsored ADR (Cayman Islands) (a)		4,175		573,687
CDW Corp.		16,111		658,295
eBay, Inc. (a)		30,401		743,000
Expedia, Inc.		10,835		1,275,063
F5 Networks, Inc. (a)		9,694		1,122,565
Facebook, Inc. Class A (a)		53,756		4,832,664
The Priceline Group, Inc. (a)		1,831		2,264,691
				24,750,225
Media — 2.5%
Comcast Corp. Class A		58,693		3,338,458
Discovery Communications, Inc. Series A (a)		10,296		268,005
FactSet Research Systems, Inc.		4,339		693,416
Scripps Networks Interactive Class A		4,870		239,555
				4,539,434
Telecommunications — 3.0%
Cisco Systems, Inc.		102,773		2,697,791
QUALCOMM, Inc.		14,553		781,933
Verizon Communications, Inc.		42,716		1,858,573
				5,338,297
				35,091,645
Consumer, Cyclical — 17.3%
Apparel — 0.1%
Ralph Lauren Corp.		948		112,016
Home Builders — 0.8%
PulteGroup, Inc.		73,458		1,386,152
Lodging — 1.2%
Hilton Worldwide Holdings, Inc.		43,827		1,005,391
Wyndham Worldwide Corp.		15,381		1,105,894
				2,111,285
Retail — 15.2%
Advance Auto Parts, Inc.		11,226		2,127,664
Chipotle Mexican Grill, Inc. (a)		3,420		2,463,255
Costco Wholesale Corp.		16,827		2,432,680

	Number of Shares		Value
CVS Health Corp.		31,984	$	3,085,816
Dunkin’ Brands Group, Inc.		20,930		1,025,570
The Home Depot, Inc.		42,262		4,880,838
Lowe’s Cos., Inc.		44,189		3,045,506
O’Reilly Automotive, Inc. (a)		9,799		2,449,750
Ross Stores, Inc.		48,530		2,352,249
The TJX Cos., Inc.		45,390		3,241,754
				27,105,082
				30,714,535
Consumer, Non-cyclical — 31.0%
Beverages — 1.1%
Anheuser-Busch InBev SA/NV Sponsored ADR (Belgium)		4,788		509,060
Monster Beverage Corp. (a)		10,628		1,436,268
				1,945,328
Biotechnology — 6.5%
Amgen, Inc.		22,389		3,096,846
Biogen, Inc. (a)		3,176		926,789
Celgene Corp. (a)		22,974		2,485,098
Gilead Sciences, Inc.		37,485		3,680,652
Vertex Pharmaceuticals, Inc. (a)		13,328		1,387,978
				11,577,363
Commercial Services — 7.6%
Alliance Data Systems Corp. (a)		5,019		1,299,821
MasterCard, Inc. Class A		20,297		1,829,166
Moody’s Corp.		14,427		1,416,731
Paychex, Inc.		38,354		1,826,801
PayPal Holdings, Inc. (a)		38,273		1,187,994
Vantiv, Inc. Class A (a)		22,261		999,964
Verisk Analytics, Inc. (a)		18,418		1,361,274
Visa, Inc. Class A		51,368		3,578,295
				13,500,046
Cosmetics & Personal Care — 1.7%
Colgate-Palmolive Co.		18,619		1,181,562
The Estee Lauder Cos., Inc. Class A		23,386		1,886,782
				3,068,344
Foods — 1.1%
Mondelez International, Inc. Class A		47,697		1,997,074
Health Care – Products — 4.5%
Becton, Dickinson & Co.		14,259		1,891,599
C.R. Bard, Inc.		9,819		1,829,378
Johnson & Johnson		7,629		712,167
Medtronic PLC		26,372		1,765,341
Varian Medical Systems, Inc. (a)		9,492		700,320
Zimmer Biomet Holdings, Inc.		11,988		1,126,033
				8,024,838
Health Care – Services — 2.2%
Aetna, Inc.		19,827		2,169,272

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

24

MML Fundamental Growth Fund – Portfolio of Investments (Continued)

	Number of Shares		Value
Anthem, Inc.		6,613	$	925,820
HCA Holdings, Inc. (a)		10,065		778,629
				3,873,721
Pharmaceuticals — 6.3%
Allergan PLC (a)		5,649		1,535,455
AstraZeneca PLC Sponsored ADR (United Kingdom)		27,936		888,923
Bristol-Myers Squibb Co.		54,364		3,218,349
Cardinal Health, Inc.		23,462		1,802,351
Eli Lilly & Co.		27,036		2,262,643
Merck & Co., Inc.		28,053		1,385,537
				11,093,258
				55,079,972
Financial — 5.2%
Banks — 0.9%
Bank of America Corp.		101,055		1,574,437
Diversified Financial — 2.6%
The Goldman Sachs Group, Inc.		9,764		1,696,593
Intercontinental Exchange, Inc.		7,322		1,720,597
JP Morgan Chase & Co.		21,433		1,306,770
				4,723,960
Insurance — 0.7%
American International Group, Inc.		21,609		1,227,823
Real Estate Investment Trusts (REITS) — 1.0%
Public Storage		8,373		1,771,978
				9,298,198
Industrial — 4.7%
Aerospace & Defense — 1.2%
The Boeing Co.		16,324		2,137,628
Electronics — 0.3%
Agilent Technologies, Inc.		18,249		626,488
Machinery – Diversified — 0.5%
Rockwell Automation, Inc.		8,557		868,279
Manufacturing — 2.1%
Danaher Corp.		18,851		1,606,293
Honeywell International, Inc.		21,981		2,081,381
				3,687,674
Transportation — 0.6%
United Parcel Service, Inc. Class B		10,820		1,067,826
				8,387,895
Technology — 19.5%
Computers — 6.8%
Amdocs Ltd.		17,381		988,631
Apple, Inc.		89,891		9,914,977
IHS, Inc. Class A (a)		9,996		1,159,536
Jack Henry & Associates, Inc.		1,788		124,463
				12,187,607

	Number of Shares		Value
Internet — 1.5%
Check Point Software Technologies Ltd. (a)		33,554	$	2,661,839
Semiconductors — 2.4%
Altera Corp.		26,211		1,312,647
Broadcom Corp. Class A		5,645		290,322
Linear Technology Corp.		27,672		1,116,565
Maxim Integrated Products, Inc.		45,127		1,507,242
				4,226,776
Software — 8.8%
Activision Blizzard, Inc.		33,525		1,035,587
Fiserv, Inc. (a)		15,199		1,316,385
Intuit, Inc.		14,735		1,307,731
Microsoft Corp.		116,267		5,145,978
Oracle Corp.		146,720		5,299,527
Salesforce.com, Inc. (a)		23,073		1,601,958
				15,707,166
				34,783,388
TOTAL COMMON STOCK (Cost $151,959,985)				174,291,977
TOTAL EQUITIES (Cost $151,959,985)				174,291,977
TOTAL LONG-TERM INVESTMENTS (Cost $151,959,985)				174,291,977
	Principal Amount
SHORT-TERM INVESTMENTS — 1.6%
Repurchase Agreement — 1.6%
State Street Bank & Trust Co. Repurchase Agreement, dated 9/30/15, 0.010%, due 10/01/15 (b)	$	2,845,825		2,845,825
TOTAL SHORT-TERM INVESTMENTS (Cost $2,845,825)				2,845,825
TOTAL INVESTMENTS — 99.5%
(Cost $154,805,810) (c)				177,137,802
Other Assets/(Liabilities) — 0.5%				809,735
NET ASSETS — 100.0%			$	177,947,537

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

ADR American Depositary Receipt

(a) Non-income producing security.

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

25

MML Fundamental Growth Fund – Portfolio of Investments (Continued)

Notes to Portfolio of Investments (Continued)

(b) Maturity value of $2,845,825. Collateralized by U.S. Government Agency obligations with a rate of 1.750%, maturity date of 9/30/22, and an aggregate market value, including accrued interest, of $2,904,069.

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

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

26

MML Fundamental Value Fund – Portfolio of Investments

September 30, 2015 (Unaudited)

	Number of Shares		Value
EQUITIES — 96.3%
COMMON STOCK — 96.3%
Basic Materials — 3.0%
Chemicals — 1.2%
The Dow Chemical Co.		57,040	$	2,418,496
Forest Products & Paper — 0.7%
International Paper Co.		41,050		1,551,279
Iron & Steel — 1.1%
Nucor Corp.		23,830		894,817
Steel Dynamics, Inc.		84,140		1,445,525
				2,340,342
				6,310,117
Communications — 9.9%
Advertising — 1.2%
Nielsen Holdings PLC		55,400		2,463,638
Internet — 1.1%
Symantec Corp.		122,840		2,391,695
Media — 2.9%
CBS Corp. Class B		40,980		1,635,102
Comcast Corp. Class A		40,140		2,283,163
Thomson Reuters Corp.		55,400		2,230,404
				6,148,669
Telecommunications — 4.7%
Cisco Systems, Inc.		263,540		6,917,925
Verizon Communications, Inc.		72,640		3,160,566
				10,078,491
				21,082,493
Consumer, Cyclical — 10.8%
Home Builders — 1.0%
PulteGroup, Inc.		107,310		2,024,940
Leisure Time — 1.4%
Norwegian Cruise Line Holdings Ltd. (a)		51,130		2,929,749
Lodging — 0.9%
Hilton Worldwide Holdings, Inc.		85,610		1,963,893
Retail — 7.5%
CVS Health Corp.		27,500		2,653,200
Dollar General Corp.		31,300		2,267,372
The Home Depot, Inc.		25,610		2,957,699
Lowe’s Cos., Inc.		32,720		2,255,062
Nordstrom, Inc.		25,980		1,863,026
PVH Corp.		20,130		2,052,052
Signet Jewelers Ltd.		14,800		2,014,724
				16,063,135
				22,981,717
Consumer, Non-cyclical — 17.3%
Agriculture — 1.1%
British American Tobacco PLC		42,042		2,323,520

	Number of Shares		Value
Beverages — 1.6%
Anheuser-Busch InBev SA/NV Sponsored ADR (Belgium)		21,360	$	2,270,995
Diageo PLC Sponsored ADR (United Kingdom)		11,340		1,222,339
				3,493,334
Biotechnology — 1.8%
Amgen, Inc.		15,200		2,102,464
Gilead Sciences, Inc.		17,610		1,729,126
				3,831,590
Foods — 1.9%
Ingredion, Inc.		18,600		1,623,966
The Kraft Heinz Co.		33,026		2,330,975
				3,954,941
Health Care – Products — 2.0%
Baxter International, Inc.		28,960		951,336
Medtronic PLC		48,109		3,220,416
				4,171,752
Health Care – Services — 1.4%
UnitedHealth Group, Inc.		25,760		2,988,418
Pharmaceuticals — 7.5%
AstraZeneca PLC Sponsored ADR (United Kingdom)		73,140		2,327,315
Baxalta, Inc.		28,960		912,529
Bristol-Myers Squibb Co.		50,890		3,012,688
Merck & Co., Inc.		105,010		5,186,444
Pfizer, Inc.		57,449		1,804,473
Roche Holding AG		10,658		2,817,485
				16,060,934
				36,824,489
Energy — 9.4%
Oil & Gas — 8.2%
Anadarko Petroleum Corp.		22,120		1,335,827
Chevron Corp.		45,490		3,588,251
EOG Resources, Inc.		38,220		2,782,416
Exxon Mobil Corp.		41,950		3,118,982
Marathon Oil Corp.		122,050		1,879,570
Occidental Petroleum Corp.		22,790		1,507,559
Pioneer Natural Resources Co.		16,570		2,015,575
Southwestern Energy Co. (a)		104,490		1,325,978
				17,554,158
Oil & Gas Services — 1.2%
Halliburton Co.		70,900		2,506,315
				20,060,473
Financial — 25.4%
Banks — 7.6%
M&T Bank Corp.		21,990		2,681,680
PNC Financial Services Group, Inc.		54,470		4,858,724

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

27

MML Fundamental Value Fund – Portfolio of Investments (Continued)

	Number of Shares		Value
Wells Fargo & Co.		168,080	$	8,630,908
				16,171,312
Diversified Financial — 11.6%
Ameriprise Financial, Inc.		5,780		630,771
BlackRock, Inc.		10,630		3,162,106
Citigroup, Inc.		108,210		5,368,298
The Goldman Sachs Group, Inc.		13,810		2,399,626
Intercontinental Exchange, Inc.		13,350		3,137,117
Invesco Ltd.		55,900		1,745,757
JP Morgan Chase & Co.		136,290		8,309,601
				24,753,276
Insurance — 6.2%
ACE Ltd.		33,110		3,423,574
American International Group, Inc.		40,450		2,298,369
Marsh & McLennan Cos., Inc.		43,090		2,250,160
MetLife, Inc.		56,690		2,672,934
Principal Financial Group, Inc.		35,010		1,657,373
Unum Group		25,650		822,852
				13,125,262
				54,049,850
Industrial — 9.7%
Aerospace & Defense — 1.4%
United Technologies Corp.		32,380		2,881,496
Building Materials — 1.4%
Fortune Brands Home & Security, Inc.		65,160		3,093,145
Machinery – Construction & Mining — 0.8%
Ingersoll-Rand PLC		33,150		1,683,026
Manufacturing — 5.2%
3M Co.		15,690		2,224,371
Eaton Corp. PLC		55,820		2,863,566
General Electric Co.		168,970		4,261,424
Illinois Tool Works, Inc.		22,100		1,819,051
				11,168,412
Transportation — 0.9%
Union Pacific Corp.		22,000		1,945,020
				20,771,099
Technology — 7.5%
Semiconductors — 5.1%
Analog Devices, Inc.		28,090		1,584,557
Intel Corp.		142,250		4,287,415
Marvell Technology Group Ltd.		176,450		1,596,873
Maxim Integrated Products, Inc.		102,480		3,422,832
				10,891,677
Software — 2.4%
Microsoft Corp.		115,490		5,111,587
				16,003,264

	Number of Shares		Value
Utilities — 3.3%
Electric — 3.3%
Dominion Resources, Inc.		17,100	$	1,203,498
Edison International		31,580		1,991,751
Eversource Energy		53,570		2,711,713
NextEra Energy, Inc.		12,690		1,237,910
				7,144,872
TOTAL COMMON STOCK (Cost $174,189,882)				205,228,374
TOTAL EQUITIES (Cost $174,189,882)				205,228,374
TOTAL LONG-TERM INVESTMENTS (Cost $174,189,882)				205,228,374
	Principal Amount
SHORT-TERM INVESTMENTS — 3.3%
Repurchase Agreement — 3.3%
State Street Bank & Trust Co. Repurchase Agreement, dated 9/30/15, 0.010%, due 10/01/15 (b)	$	7,099,735		7,099,735
Time Deposits — 0.0%
Euro Time Deposit 0.010% 10/01/15		9,614		9,614
TOTAL SHORT-TERM INVESTMENTS (Cost $7,109,349)				7,109,349
TOTAL INVESTMENTS — 99.6% (Cost $181,299,231) (c)				212,337,723
Other Assets/(Liabilities) — 0.4%				827,361
NET ASSETS — 100.0%			$	213,165,084

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

ADR American Depositary Receipt

(a) Non-income producing security.

(b) Maturity value of $7,099,737. Collateralized by U.S. Government Agency obligations with a rate of 1.750%, maturity date of 9/30/22, and an aggregate market value, including accrued interest, of $7,242,738.

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

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

28

MML Global Fund – Portfolio of Investments

September 30, 2015 (Unaudited)

	Number of Shares		Value
EQUITIES — 98.6%
COMMON STOCK — 98.6%
Austria — 0.5%
Erste Group Bank AG (a)		38,369	$	1,115,442
Bermuda — 0.2%
Credicorp Ltd.		3,962		421,398
Brazil — 0.7%
AMBEV SA		233,531		1,143,946
Itau Unibanco Holding SA Sponsored ADR (Brazil)		99,841		660,947
				1,804,893
Canada — 1.8%
Canadian National Railway Co. (b)		75,193		4,267,955
Cayman Islands — 0.2%
Sands China Ltd.		131,600		399,402
Czech Republic — 0.2%
Komercni Banka AS		1,991		431,903
Denmark — 0.8%
Carlsberg A/S Class B		25,062		1,928,718
France — 7.7%
Air Liquide		11,058		1,310,357
Danone SA		63,959		4,045,021
Hermes International		1,235		449,631
Legrand SA		44,654		2,374,074
LVMH Moet Hennessy Louis Vuitton SE		26,880		4,586,858
Pernod-Ricard SA		33,053		3,337,553
Schneider Electric SE		44,750		2,509,531
				18,613,025
Germany — 6.2%
Bayer AG		41,817		5,344,557
Brenntag AG		19,653		1,057,642
Deutsche Boerse AG		16,243		1,398,275
Linde AG		23,762		3,849,077
Merck KGaA		22,417		1,984,592
MTU Aero Engines AG		18,426		1,539,035
				15,173,178
Ireland — 4.2%
Accenture PLC Class A		66,958		6,579,293
Medtronic PLC		54,210		3,628,817
				10,208,110
Israel — 0.5%
Check Point Software Technologies Ltd. (a)		15,447		1,225,410
Japan — 1.3%
Hoya Corp.		55,100		1,810,568
Inpex Corp.		90,600		809,434

	Number of Shares		Value
Lawson, Inc.		8,600	$	635,970
				3,255,972
Mexico — 0.3%
Grupo Financiero Banorte SAB de CV Class O		171,536		841,399
Netherlands — 2.5%
Akzo Nobel NV		43,459		2,825,298
Heineken NV		40,121		3,247,343
				6,072,641
Netherlands Antilles — 1.0%
Schlumberger Ltd.		34,665		2,390,845
Republic of Korea — 0.5%
Samsung Electronics Co., Ltd.		1,389		1,335,797
Russia — 0.1%
Sberbank of Russia Sponsored ADR (Russia)		37,145		182,754
Sberbank of Russia Sponsored ADR (Russia)		966		4,780
				187,534
Spain — 0.2%
Aena SA (a) (c)		4,587		506,538
Sweden — 1.7%
Svenska Cellulosa AB Class B		143,620		4,024,524
Switzerland — 8.3%
Adecco SA		31,422		2,304,013
Cie Financiere Richemont SA		32,000		2,493,046
Julius Baer Group Ltd.		23,913		1,087,996
Nestle SA		89,840		6,765,536
Roche Holding AG		7,760		2,051,387
Sonova Holding AG		10,241		1,320,638
Swiss Re AG		8,867		762,202
UBS Group AG		184,408		3,417,287
				20,202,105
Thailand — 0.2%
Kasikornbank PCL		117,100		550,502
United Kingdom — 10.8%
Burberry Group PLC		63,151		1,310,625
Compass Group PLC		183,459		2,928,940
Delphi Automotive PLC		22,245		1,691,510
Diageo PLC		183,970		4,950,720
Reckitt Benckiser Group PLC		76,563		6,949,707
Sky PLC		153,007		2,421,201
Standard Chartered PLC		125,031		1,215,538
Whitbread PLC		7,035		497,596
William Hill PLC		140,199		745,293
WPP PLC		171,010		3,561,253
				26,272,383

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

29

MML Global Fund – Portfolio of Investments (Continued)

	Number of Shares		Value
United States — 48.7%
3M Co.		27,154	$	3,849,623
American Express Co.		50,840		3,768,769
Amphenol Corp. Class A		33,347		1,699,363
AutoZone, Inc. (a)		3,216		2,327,837
The Bank of New York Mellon Corp.		105,137		4,116,114
Cisco Systems, Inc.		64,564		1,694,805
Colgate-Palmolive Co.		52,610		3,338,631
DENTSPLY International, Inc.		40,214		2,033,622
eBay, Inc. (a)		34,182		835,408
Franklin Resources, Inc.		64,792		2,414,150
The Goldman Sachs Group, Inc.		16,488		2,864,955
Harley-Davidson, Inc.		7,815		429,043
Honeywell International, Inc.		65,938		6,243,669
International Flavors & Fragrances, Inc.		17,358		1,792,387
Johnson & Johnson		17,157		1,601,606
Kellogg Co.		54,686		3,639,353
McDonald’s Corp.		18,621		1,834,727
Microchip Technology, Inc. (b)		44,227		1,905,741
Monsanto Co.		17,202		1,468,019
National Oilwell Varco, Inc.		24,922		938,313
NOW, Inc. (a) (b)		14,569		215,621
Omnicom Group, Inc.		33,764		2,225,048
Oracle Corp.		115,491		4,171,535
PayPal Holdings, Inc. (a)		34,182		1,061,009
Praxair, Inc.		20,639		2,102,288
Rockwell Automation, Inc.		5,570		565,188
Sally Beauty Holdings, Inc. (a)		63,918		1,518,052
St. Jude Medical, Inc.		51,382		3,241,690
State Street Corp.		77,175		5,186,932
Stryker Corp.		38,286		3,602,713
Thermo Fisher Scientific, Inc.		49,570		6,061,420
Time Warner Cable, Inc.		15,289		2,742,388
Time Warner, Inc.		86,286		5,932,162
Union Pacific Corp.		13,698		1,211,040
United Parcel Service, Inc. Class B		39,559		3,904,078
United Technologies Corp.		40,063		3,565,206
Urban Outfitters, Inc. (a)		52,605		1,545,535
Viacom, Inc. Class B		11,351		489,796
Visa, Inc. Class A		84,492		5,885,713
W.W. Grainger, Inc. (b)		8,265		1,777,058
The Walt Disney Co.		67,533		6,901,873
Waters Corp. (a)		20,008		2,365,146
Wynn Resorts Ltd.		5,329		283,076
Zimmer Biomet Holdings, Inc.		29,577		2,778,168
				118,128,870
TOTAL COMMON STOCK (Cost $210,193,538)				239,358,544

	Number of Shares		Value
TOTAL EQUITIES (Cost $210,193,538)			$	239,358,544
MUTUAL FUNDS — 3.1%
United States — 3.1%
State Street Navigator Securities Lending Prime Portfolio (d)		7,541,860		7,541,860
TOTAL MUTUAL FUNDS (Cost $7,541,860)				7,541,860
TOTAL LONG-TERM INVESTMENTS (Cost $217,735,398)				246,900,404
	Principal Amount
SHORT-TERM INVESTMENTS — 1.2%
Repurchase Agreement — 1.2%
State Street Bank & Trust Co. Repurchase Agreement, dated 9/30/15, 0.010%, due 10/01/15 (e)	$	2,892,500		2,892,500
Time Deposits — 0.0%
Euro Time Deposit 0.010% 10/01/15		14,015		14,015
TOTAL SHORT-TERM INVESTMENTS (Cost $2,906,515)				2,906,515
TOTAL INVESTMENTS — 102.9% (Cost $220,641,913) (f)				249,806,919
Other Assets/(Liabilities) — (2.9)%				(6,996,949	)
NET ASSETS — 100.0%			$	242,809,970

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

ADR American Depositary Receipt

(a) Non-income producing security.

(b) Denotes all or a portion of security on loan. The total value of securities on loan as of September 30, 2015, was $7,381,189 or 3.04% 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) 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 September 30, 2015, these securities amounted to a value of $506,538 or 0.21% of net assets.

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

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

30

MML Global Fund – Portfolio of Investments (Continued)

Notes to Portfolio of Investments (Continued)

(e) Maturity value of $2,892,501. Collateralized by U.S. Government Agency obligations with a rate of 1.500%, maturity date of 1/31/22, and an aggregate market value, including accrued interest, of $2,955,150.

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

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

31

MML Growth Allocation Fund – Portfolio of Investments

September 30, 2015 (Unaudited)

	Number of Shares		Value
MUTUAL FUNDS — 100.1%
Equity Funds — 74.9%
MML Blue Chip Growth Fund, Initial Class (a)		7,411,866	$	106,508,512
MML Equity Income Fund, Initial Class (a)		6,064,260		64,705,658
MML Focused Equity Fund, Class II (a)		5,094,873		58,540,096
MML Foreign Fund, Initial Class (a)		6,637,291		61,793,175
MML Fundamental Growth Fund, Class II (a)		5,765,845		66,941,465
MML Fundamental Value Fund, Class II (a)		5,342,267		72,013,755
MML Global Fund, Class I (a)		7,681,987		86,806,454
MML Income & Growth Fund, Initial Class (a)		4,788,733		50,616,905
MML International Equity Fund, Class II (a)		7,100,615		60,142,210
MML Large Cap Growth Fund, Initial Class (a)		5,956,067		65,159,376
MML Mid Cap Growth Fund, Initial Class (a)		4,987,532		73,366,597
MML Mid Cap Value Fund, Initial Class (a)		6,833,289		70,314,545
MML Small Cap Growth Equity Fund, Initial Class (a)		1,350,938		17,987,715
MML Small Company Value Fund, Class II (a)		2,261,634		32,884,157
MML Small/Mid Cap Value Fund, Initial Class (a)		1,986,711		22,151,828
MML Strategic Emerging Markets Fund, Class II (a)		4,973,640		38,794,393
Oppenheimer Discovery Mid Cap Growth Fund/VA, Non-Service Shares (a) (b)		357,421		26,374,090
Oppenheimer Global Fund/VA, Non-Service Shares (a)		1,054,566		37,985,475
Oppenheimer Global Multi-Alternatives Fund/VA, Non-Service Shares (a)		14,241,437		139,423,673
Oppenheimer International Growth Fund/VA, Non-Service Shares (a)		13,642,925		28,513,713
				1,181,023,792
Fixed Income Funds — 25.2%
MML Dynamic Bond Fund, Class II (a)		8,597,054		85,196,802
MML High Yield Fund, Class II (a)		1,698,204		16,387,668
MML Inflation-Protected and Income Fund, Initial Class (a)		6,164,268		62,197,464

	Number of Shares		Value
MML Managed Bond Fund, Initial Class (a)		9,630,396	$	121,345,810
MML Short-Duration Bond Fund, Class II (a)		4,146,341		41,048,776
MML Total Return Bond Fund, Class II (a)		6,947,320		71,071,081
				397,247,601
TOTAL MUTUAL FUNDS (Cost $1,602,058,380)				1,578,271,393
TOTAL LONG-TERM INVESTMENTS (Cost $1,602,058,380)				1,578,271,393
TOTAL INVESTMENTS — 100.1% (Cost $1,602,058,380) (c)				1,578,271,393
Other Assets/(Liabilities) — (0.1)%				(1,075,656	)
NET ASSETS — 100.0%			$	1,577,195,737

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) Non-income producing security.

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

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

32

MML Growth & Income Fund – Portfolio of Investments

September 30, 2015 (Unaudited)

	Number of Shares		Value
EQUITIES — 99.5%
COMMON STOCK — 99.2%
Basic Materials — 3.5%
Chemicals — 3.5%
Monsanto Co.		11,239	$	959,136
Praxair, Inc.		8,239		839,225
The Sherwin-Williams Co.		5,197		1,157,788
W.R. Grace & Co. (a)		13,560		1,261,758
				4,217,907
Communications — 9.8%
Internet — 3.7%
Alphabet, Inc. Class A (a)		3,998		2,552,203
Alphabet, Inc. Class C (a)		3,209		1,952,420
				4,504,623
Media — 6.1%
Comcast Corp. Class A		36,701		2,087,553
Time Warner, Inc.		27,480		1,889,250
Twenty-First Century Fox Class A		52,525		1,417,124
The Walt Disney Co.		19,905		2,034,291
				7,428,218
				11,932,841
Consumer, Cyclical — 10.6%
Apparel — 1.5%
Nike, Inc. Class B		5,575		685,558
VF Corp.		17,225		1,174,917
				1,860,475
Distribution & Wholesale — 1.2%
W.W. Grainger, Inc.		6,688		1,437,987
Housewares — 1.6%
Newell Rubbermaid, Inc.		49,535		1,967,035
Retail — 6.3%
AutoZone, Inc. (a)		2,169		1,569,987
Bed Bath & Beyond, Inc. (a)		15,138		863,169
Costco Wholesale Corp.		4,567		660,251
Kohl’s Corp.		23,859		1,104,910
L Brands, Inc.		7,371		664,348
Ross Stores, Inc.		32,810		1,590,301
Target Corp.		16,516		1,299,149
				7,752,115
				13,017,612
Consumer, Non-cyclical — 26.7%
Beverages — 1.7%
Diageo PLC		32,772		881,910
Pernod-Ricard SA		12,456		1,257,754
				2,139,664
Commercial Services — 6.4%
Gartner, Inc. (a)		8,036		674,462

	Number of Shares		Value
MasterCard, Inc. Class A		23,744	$	2,139,809
McKesson Corp.		7,264		1,344,058
Visa, Inc. Class A		52,017		3,623,504
				7,781,833
Cosmetics & Personal Care — 2.0%
Colgate-Palmolive Co.		18,855		1,196,538
The Procter & Gamble Co.		16,604		1,194,492
				2,391,030
Foods — 3.3%
Danone SA		23,043		1,457,331
General Mills, Inc.		9,903		555,855
Mondelez International, Inc. Class A		48,941		2,049,160
				4,062,346
Health Care – Products — 4.7%
Johnson & Johnson		26,958		2,516,529
Medtronic PLC		14,411		964,672
St. Jude Medical, Inc.		14,552		918,086
Stryker Corp.		13,789		1,297,545
				5,696,832
Health Care – Services — 1.9%
Thermo Fisher Scientific, Inc.		19,178		2,345,086
Pharmaceuticals — 6.7%
Abbott Laboratories		15,838		637,004
Allergan PLC (a)		4,972		1,351,439
Bristol-Myers Squibb Co.		27,501		1,628,059
Eli Lilly & Co.		19,819		1,658,652
Endo International PLC (a)		16,395		1,135,846
Valeant Pharmaceuticals International, Inc. (a)		9,972		1,778,806
				8,189,806
				32,606,597
Diversified — 1.2%
Holding Company – Diversified — 1.2%
LVMH Moet Hennessy Louis Vuitton SE		8,687		1,482,367
Energy — 4.9%
Oil & Gas — 2.4%
EOG Resources, Inc.		23,903		1,740,138
Noble Energy, Inc.		26,726		806,591
Occidental Petroleum Corp.		6,672		441,353
				2,988,082
Oil & Gas Services — 2.5%
Cameron International Corp. (a)		18,424		1,129,760
National Oilwell Varco, Inc.		13,874		522,356
Schlumberger Ltd.		20,432		1,409,195
				3,061,311

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

33

MML Growth & Income Fund – Portfolio of Investments (Continued)

	Number of Shares		Value
Financial — 18.8%
Banks — 5.0%
Bank of America Corp.		160,114	$	2,494,576
BB&T Corp.		12,173		433,359
State Street Corp.		10,467		703,487
Wells Fargo & Co.		48,503		2,490,629
				6,122,051
Diversified Financial — 11.0%
American Express Co.		33,434		2,478,462
BlackRock, Inc.		6,001		1,785,118
The Blackstone Group LP		14,379		455,383
The Goldman Sachs Group, Inc.		12,836		2,230,383
JP Morgan Chase & Co.		64,076		3,906,714
Morgan Stanley		32,278		1,016,757
The Nasdaq, Inc.		29,891		1,594,087
				13,466,904
Insurance — 1.0%
ACE Ltd.		11,276		1,165,938
Real Estate Investment Trusts (REITS) — 1.8%
American Tower Corp.		25,573		2,249,913
				23,004,806
Industrial — 9.9%
Aerospace & Defense — 1.5%
United Technologies Corp.		20,819		1,852,683
Engineering & Construction — 0.6%
Fluor Corp.		16,471		697,547
Manufacturing — 4.5%
Danaher Corp.		40,382		3,440,950
Honeywell International, Inc.		22,333		2,114,712
				5,555,662
Metal Fabricate & Hardware — 0.8%
Precision Castparts Corp.		4,018		922,975
Packaging & Containers — 1.1%
Crown Holdings, Inc. (a)		30,311		1,386,728
Transportation — 1.4%
Canadian National Railway Co.		30,472		1,729,590
				12,145,185
Technology — 12.2%
Computers — 7.5%
Accenture PLC Class A		22,982		2,258,211
Apple, Inc.		12,650		1,395,295
Cognizant Technology Solutions Corp. Class A (a)		37,007		2,317,008
EMC Corp.		98,028		2,368,357
Hewlett-Packard Co.		33,145		848,844
				9,187,715
Semiconductors — 2.1%
Avago Technologies Ltd.		14,016		1,752,140

	Number of Shares		Value
Microchip Technology, Inc.		18,636	$	803,025
				2,555,165
Software — 2.6%
Adobe Systems, Inc. (a)		6,840		562,385
Citrix Systems, Inc. (a)		7,131		494,036
Fidelity National Information Services, Inc.		32,092		2,152,731
				3,209,152
				14,952,032
Utilities — 1.6%
Electric — 1.6%
American Electric Power Co., Inc.		15,130		860,292
CMS Energy Corp.		29,464		1,040,668
				1,900,960
TOTAL COMMON STOCK (Cost $93,848,758)				121,309,700
PREFERRED STOCK — 0.3%
Utilities — 0.3%
Electric — 0.3%
Exelon Corp. 6.500%		7,560		329,994
TOTAL PREFERRED STOCK (Cost $382,467)				329,994
TOTAL EQUITIES (Cost $94,231,225)				121,639,694
TOTAL LONG-TERM INVESTMENTS (Cost $94,231,225)				121,639,694
	Principal Amount
SHORT-TERM INVESTMENTS — 0.6%
Repurchase Agreement — 0.6%
State Street Bank & Trust Co. Repurchase Agreement, dated 9/30/15, 0.010%, due 10/01/15 (b)	$	685,543		685,543
Time Deposits — 0.0%
Euro Time Deposit 0.010% 10/01/15		6,039		6,039
TOTAL SHORT-TERM INVESTMENTS (Cost $691,582)				691,582
TOTAL INVESTMENTS — 100.1% (Cost $94,922,807) (c)				122,331,276
Other Assets/(Liabilities) — (0.1)%				(107,839	)
NET ASSETS — 100.0%			$	122,223,437

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

34

MML Growth & Income Fund – Portfolio of Investments (Continued)

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

(a) Non-income producing security.

(b) Maturity value of $685,543. Collateralized by U.S. Government Agency obligations with a rate of 1.500%, maturity date of 1/31/22, and an aggregate market value, including accrued interest, of $702,900.

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

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

35

MML Income & Growth Fund – Portfolio of Investments

September 30, 2015 (Unaudited)

	Number of Shares		Value
EQUITIES — 97.0%
COMMON STOCK — 97.0%
Basic Materials — 3.7%
Chemicals — 2.5%
The Chemours Co.		10,570	$	68,388
The Dow Chemical Co.		41,610		1,764,264
E.I. du Pont de Nemours & Co.		52,860		2,547,852
Praxair, Inc.		13,120		1,336,403
				5,716,907
Forest Products & Paper — 0.9%
International Paper Co.		49,590		1,874,006
Mining — 0.3%
BHP Billiton Ltd.		46,530		733,858
				8,324,771
Communications — 6.7%
Advertising — 0.5%
Nielsen Holdings PLC		25,260		1,123,312
Media — 1.5%
Comcast Corp. Special Class A		60,380		3,456,152
Telecommunications — 4.7%
BCE, Inc.		16,190		663,142
Motorola Solutions, Inc.		28,420		1,943,360
QUALCOMM, Inc.		52,680		2,830,496
SK Telecom Co. Ltd. ADR (South Korea)		48,600		1,185,840
Verizon Communications, Inc.		90,670		3,945,052
				10,567,890
				15,147,354
Consumer, Cyclical — 5.7%
Retail — 5.7%
Dollar General Corp.		52,450		3,799,478
The Gap, Inc.		68,900		1,963,650
The Home Depot, Inc.		45,690		5,276,738
McDonald’s Corp.		19,202		1,891,973
				12,931,839
Consumer, Non-cyclical — 20.6%
Agriculture — 1.9%
Altria Group, Inc.		28,720		1,562,368
Philip Morris International, Inc.		13,670		1,084,441
Reynolds American, Inc.		37,818		1,674,203
				4,321,012
Beverages — 1.9%
The Coca-Cola Co.		60,390		2,422,847
Diageo PLC		65,770		1,769,902
				4,192,749
Cosmetics & Personal Care — 1.8%
The Procter & Gamble Co.		56,350		4,053,819

	Number of Shares		Value
Foods — 2.1%
The Kroger Co.		84,880	$	3,061,622
Mondelez International, Inc. Class A		31,160		1,304,669
Unilever NV NY Shares		11,810		474,762
				4,841,053
Health Care – Products — 2.3%
Becton, Dickinson & Co.		10,420		1,382,317
Johnson & Johnson		40,740		3,803,079
				5,185,396
Health Care – Services — 4.0%
Anthem, Inc.		13,000		1,820,000
Quest Diagnostics, Inc.		33,300		2,046,951
UnitedHealth Group, Inc.		43,833		5,085,066
				8,952,017
Pharmaceuticals — 6.6%
Abbott Laboratories		21,130		849,849
AbbVie, Inc.		21,130		1,149,683
AstraZeneca PLC		8,800		558,477
Bristol-Myers Squibb Co.		31,190		1,846,448
Merck & Co., Inc.		90,610		4,475,228
Pfizer, Inc.		196,290		6,165,469
				15,045,154
				46,591,200
Energy — 9.0%
Oil & Gas — 8.2%
Chevron Corp.		28,258		2,228,991
ConocoPhillips		18,100		868,076
Exxon Mobil Corp.		75,880		5,641,678
Marathon Oil Corp.		53,310		820,974
Marathon Petroleum Corp.		54,340		2,517,572
Occidental Petroleum Corp.		50,844		3,363,330
Total SA Sponsored ADR (France)		71,353		3,190,193
				18,630,814
Oil & Gas Services — 0.4%
Schlumberger Ltd.		14,580		1,005,583
Pipelines — 0.4%
Spectra Energy Corp.		30,120		791,252
Financial — 25.2%
Banks — 8.6%
Bank of America Corp.		210,070		3,272,891
SunTrust Banks, Inc.		103,442		3,955,622
U.S. Bancorp		91,430		3,749,544
Wells Fargo & Co.		163,370		8,389,049
				19,367,106
Diversified Financial — 10.5%
American Express Co.		14,513		1,075,849
Citigroup, Inc.		139,300		6,910,673
CME Group, Inc.		23,200		2,151,568

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

36

MML Income & Growth Fund – Portfolio of Investments (Continued)

	Number of Shares		Value
The Goldman Sachs Group, Inc.		12,830	$	2,229,341
JP Morgan Chase & Co.		149,230		9,098,553
Morgan Stanley		72,200		2,274,300
				23,740,284
Insurance — 5.7%
ACE Ltd.		13,620		1,408,308
American International Group, Inc.		52,550		2,985,891
MetLife, Inc.		63,700		3,003,455
Prudential Financial, Inc.		38,670		2,947,040
The Travelers Cos., Inc.		26,760		2,663,423
				13,008,117
Real Estate Investment Trusts (REITS) — 0.4%
Weyerhaeuser Co.		34,390		940,223
				57,055,730
Industrial — 13.8%
Aerospace & Defense — 6.0%
Lockheed Martin Corp.		16,720		3,466,223
Northrop Grumman Corp.		21,640		3,591,158
Raytheon Co.		44,720		4,886,107
United Technologies Corp.		18,370		1,634,747
				13,578,235
Electronics — 0.4%
Tyco International PLC		27,230		911,116
Machinery – Diversified — 0.3%
Rockwell Automation, Inc.		8,220		834,083
Manufacturing — 5.1%
3M Co.		11,320		1,604,836
General Electric Co.		260,080		6,559,218
Honeywell International, Inc.		34,910		3,305,628
				11,469,682
Transportation — 2.0%
Union Pacific Corp.		21,349		1,887,465
United Parcel Service, Inc. Class B		26,200		2,585,678
				4,473,143
				31,266,259
Technology — 6.7%
Computers — 0.5%
International Business Machines Corp.		3,770		546,537
Lenovo Group Ltd.		596,000		506,063
				1,052,600
Semiconductors — 3.0%
Intel Corp.		170,210		5,130,129
Samsung Electronics Co., Ltd. (a)		3,690		1,746,716
				6,876,845
Software — 3.2%
Microsoft Corp.		112,400		4,974,824

	Number of Shares		Value
Oracle Corp.		61,880	$	2,235,106
				7,209,930
				15,139,375
Utilities — 5.6%
Electric — 4.3%
CMS Energy Corp.		37,710		1,331,917
Dominion Resources, Inc.		36,670		2,580,835
Eversource Energy		4,800		242,976
Exelon Corp.		19,400		576,180
ITC Holdings Corp.		18,680		622,791
NextEra Energy, Inc.		27,450		2,677,747
Public Service Enterprise Group, Inc.		13,297		560,602
WEC Energy Group, Inc.		22,210		1,159,806
				9,752,854
Gas — 0.4%
Sempra Energy		9,480		916,906
Water — 0.9%
American Water Works Co., Inc.		35,750		1,969,110
				12,638,870
TOTAL COMMON STOCK (Cost $192,991,666)				219,523,047
TOTAL EQUITIES (Cost $192,991,666)				219,523,047
TOTAL LONG-TERM INVESTMENTS (Cost $192,991,666)				219,523,047
	Principal Amount
SHORT-TERM INVESTMENTS — 3.1%
Repurchase Agreement — 3.1%
State Street Bank & Trust Co. Repurchase Agreement, dated 9/30/15, 0.010%, due 10/01/15 (b)	$	7,074,774		7,074,774
TOTAL SHORT-TERM INVESTMENTS (Cost $7,074,774)				7,074,774
TOTAL INVESTMENTS — 100.1% (Cost $200,066,440) (c)				226,597,821
Other Assets/(Liabilities) — (0.1)%				(322,323	)
NET ASSETS — 100.0%			$	226,275,498

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

37

MML Income & Growth Fund – Portfolio of Investments (Continued)

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

ADR American Depositary Receipt

(a) 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 September 30, 2015, these securities amounted to a value of $1,746,716 or 0.77% of net assets.

(b) Maturity value of $7,074,776. Collateralized by U.S. Government Agency obligations with a rate of 1.500%, maturity date of 1/31/22, and an aggregate market value, including accrued interest, of $7,217,100.

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

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

38

MML International Equity Fund – Portfolio of Investments

September 30, 2015 (Unaudited)

	Number of Shares		Value
EQUITIES — 96.9%
COMMON STOCK — 96.9%
Australia — 2.4%
AMP Ltd.		571,100	$	2,237,121
Orica Ltd. (a)		150,279		1,591,823
				3,828,944
Cayman Islands — 3.8%
Baidu, Inc. Sponsored ADR (Cayman Islands) (b)		28,100		3,861,221
Melco Crown Entertainment Ltd. ADR (Cayman Islands) (a)		159,500		2,194,720
				6,055,941
France — 14.0%
BNP Paribas		106,100		6,247,776
Bureau Veritas SA		89,600		1,890,309
Danone SA		50,675		3,204,888
Kering		25,110		4,109,923
LVMH Moet Hennessy Louis Vuitton SE		11,750		2,005,044
Pernod-Ricard SA		27,000		2,726,346
Safran SA		7,270		548,543
Valeo SA		11,360		1,538,378
				22,271,207
Germany — 11.5%
Adidas AG		5,800		466,847
Allianz SE		43,280		6,783,506
Bayerische Motoren Werke AG		62,350		5,516,884
Daimler AG		73,100		5,298,947
SAP SE		4,900		317,012
				18,383,196
Indonesia — 1.0%
Bank Mandari Tbk PT		3,005,100		1,630,477
Ireland — 3.5%
Experian PLC		163,900		2,630,444
Willis Group Holdings PLC		71,800		2,941,646
				5,572,090
Israel — 0.2%
Check Point Software Technologies Ltd. (b)		3,500		277,655
Italy — 4.7%
Exor SpA		54,400		2,376,854
Intesa Sanpaolo SpA		608,800		2,149,977
Prada SpA		754,900		2,896,870
				7,423,701
Japan — 18.1%
Daiwa Securities Group, Inc.		726,000		4,705,076
Honda Motor Co. Ltd.		195,600		5,832,537

	Number of Shares		Value
Komatsu Ltd.		205,300	$	3,021,583
Meitec Corp.		3,200		112,113
Nomura Holdings, Inc.		883,700		5,127,422
Olympus Corp.		28,500		887,511
Omron Corp.		87,400		2,641,719
Secom Co. Ltd.		9,800		590,546
Toyota Motor Corp.		100,900		5,934,367
				28,852,874
Netherlands — 5.6%
Akzo Nobel NV		7,561		491,546
CNH Industrial NV		671,200		4,381,420
Koninklijke Philips Electronics NV		170,200		4,013,274
				8,886,240
Republic of Korea — 3.7%
Samsung Electronics Co., Ltd.		6,065		5,832,690
Sweden — 4.4%
Atlas Copco AB Class B		73,900		1,656,847
Hennes & Mauritz AB Class B		42,200		1,542,982
SKF AB Class B		143,500		2,643,807
Swedish Match AB		40,100		1,213,964
				7,057,600
Switzerland — 12.5%
Cie Financiere Richemont SA		58,100		4,526,437
Credit Suisse Group		287,151		6,908,191
Kuehne & Nagel International AG		14,800		1,904,693
LafargeHolcim Ltd.		59,570		3,129,653
Nestle SA		6,350		478,196
Schindler Holding AG		7,100		1,022,224
Swatch Group AG		5,115		1,899,625
				19,869,019
United Kingdom — 11.5%
Ashtead Group PLC		46,000		649,243
Burberry Group PLC		28,000		581,107
Diageo PLC		139,900		3,764,775
G4S PLC		70,900		247,957
GlaxoSmithKline PLC		25,000		479,243
Glencore PLC		2,523,700		3,516,774
Lloyds Banking Group PLC		2,456,300		2,800,116
Meggitt PLC		236,538		1,707,886
Schroders PLC		34,600		1,472,412
Smiths Group PLC		138,000		2,102,599
WPP PLC		47,000		978,767
				18,300,879
TOTAL COMMON STOCK (Cost $184,217,953)				154,242,513
TOTAL EQUITIES (Cost $184,217,953)				154,242,513

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

39

MML International Equity Fund – Portfolio of Investments (Continued)

	Number of Shares		Value
MUTUAL FUNDS — 0.9%
United States — 0.9%
State Street Navigator Securities Lending Prime Portfolio (c)		1,432,910	$	1,432,910
TOTAL MUTUAL FUNDS (Cost $1,432,910)				1,432,910
TOTAL LONG-TERM INVESTMENTS (Cost $185,650,863)				155,675,423
	Principal Amount
SHORT-TERM INVESTMENTS — 2.3%
Repurchase Agreement — 2.3%
State Street Bank & Trust Co. Repurchase Agreement, dated 9/30/15, 0.010%, due 10/01/15 (d)	$	3,704,780		3,704,780
TOTAL SHORT-TERM INVESTMENTS (Cost $3,704,780)				3,704,780
TOTAL INVESTMENTS — 100.1% (Cost $189,355,643) (e)				159,380,203
Other Assets/(Liabilities) — (0.1)%				(106,047	)
NET ASSETS — 100.0%			$	159,274,156

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

ADR American Depositary Receipt

(a) Denotes all or a portion of security on loan. The total value of securities on loan as of September 30, 2015, was $1,367,732 or 0.86% 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).

(b) Non-income producing security.

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

(d) Maturity value of $3,704,781. Collateralized by U.S. Government Agency obligations with a rate of 1.750%, maturity date of 9/30/22, and an aggregate market value, including accrued interest, of $3,780,769.

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

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

40

MML Large Cap Growth Fund – Portfolio of Investments

September 30, 2015 (Unaudited)

	Number of Shares		Value
EQUITIES — 97.6%
COMMON STOCK — 97.6%
Basic Materials — 2.3%
Chemicals — 1.5%
The Sherwin-Williams Co.		13,930	$	3,103,325
Mining — 0.8%
Vulcan Materials Co.		18,350		1,636,820
				4,740,145
Communications — 22.4%
Internet — 15.3%
Alphabet, Inc. Class A (a)		12,730		8,126,450
Amazon.com, Inc. (a)		10,920		5,589,839
Facebook, Inc. Class A (a)		76,050		6,836,895
FireEye, Inc. (a)		66,530		2,116,985
LinkedIn Corp. Class A (a)		18,380		3,494,589
The Priceline Group, Inc. (a)		4,260		5,269,023
				31,433,781
Media — 5.7%
The McGraw Hill Financial, Inc.		13,610		1,177,265
Time Warner, Inc.		42,090		2,893,688
The Walt Disney Co.		76,280		7,795,816
				11,866,769
Telecommunications — 1.4%
Palo Alto Networks, Inc. (a)		16,710		2,874,120
				46,174,670
Consumer, Cyclical — 21.8%
Airlines — 1.9%
Delta Air Lines, Inc.		84,930		3,810,809
Apparel — 4.8%
Nike, Inc. Class B		28,290		3,478,821
Under Armour, Inc. Class A (a)		23,950		2,317,881
VF Corp.		60,650		4,136,937
				9,933,639
Leisure Time — 1.4%
Royal Caribbean Cruises Ltd.		33,200		2,957,788
Retail — 13.7%
Chipotle Mexican Grill, Inc. (a)		4,400		3,169,100
Costco Wholesale Corp.		24,940		3,605,576
CVS Health Corp.		48,400		4,669,632
Dollar General Corp.		43,430		3,146,069
The Home Depot, Inc.		58,050		6,704,194
Starbucks Corp.		77,140		4,384,638
Ulta Salon Cosmetics & Fragrance, Inc. (a)		15,540		2,538,459
				28,217,668
				44,919,904

	Number of Shares		Value
Consumer, Non-cyclical — 30.3%
Beverages — 3.3%
Constellation Brands, Inc. Class A		27,380	$	3,428,250
Monster Beverage Corp. (a)		24,980		3,375,797
				6,804,047
Biotechnology — 7.6%
Alexion Pharmaceuticals, Inc. (a)		15,800		2,470,962
Biogen, Inc. (a)		10,680		3,116,531
Celgene Corp. (a)		44,500		4,813,565
Illumina, Inc. (a)		8,540		1,501,503
Regeneron Pharmaceuticals, Inc. (a)		8,080		3,758,331
				15,660,892
Commercial Services — 9.7%
FleetCor Technologies, Inc. (a)		12,070		1,661,073
MasterCard, Inc. Class A		42,980		3,873,358
McKesson Corp.		19,560		3,619,187
Verisk Analytics, Inc. (a)		38,890		2,874,360
Visa, Inc. Class A		115,030		8,012,990
				20,040,968
Cosmetics & Personal Care — 1.8%
The Estee Lauder Cos., Inc. Class A		45,560		3,675,781
Health Care – Products — 0.5%
The Cooper Cos., Inc.		7,590		1,129,847
Health Care – Services — 1.2%
Cigna Corp.		18,050		2,437,111
Pharmaceuticals — 6.2%
Allergan PLC (a)		24,290		6,602,265
BioMarin Pharmaceutical, Inc. (a)		31,460		3,313,367
Shire PLC Sponsored ADR (Ireland)		13,500		2,770,605
				12,686,237
				62,434,883
Financial — 4.9%
Diversified Financial — 3.7%
The Charles Schwab Corp.		93,920		2,682,355
CME Group, Inc.		33,360		3,093,807
Intercontinental Exchange, Inc.		7,780		1,828,222
				7,604,384
Real Estate — 1.2%
CBRE Group, Inc. (a)		75,480		2,415,360
				10,019,744
Industrial — 1.5%
Transportation — 1.5%
FedEx Corp.		21,440		3,086,931
Technology — 14.4%
Computers — 5.5%
Apple, Inc.		103,800		11,449,140

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

41

MML Large Cap Growth Fund – Portfolio of Investments (Continued)

	Number of Shares		Value
Semiconductors — 2.4%
NXP Semiconductor NV (a)		26,310	$	2,290,812
Skyworks Solutions, Inc.		31,870		2,683,773
				4,974,585
Software — 6.5%
Cerner Corp. (a)		53,090		3,183,276
Salesforce.com, Inc. (a)		61,910		4,298,411
Servicenow, Inc. (a)		38,270		2,657,852
Workday, Inc. Class A (a)		46,450		3,198,547
				13,338,086
				29,761,811
TOTAL COMMON STOCK (Cost $176,151,101)				201,138,088
TOTAL EQUITIES (Cost $176,151,101)				201,138,088
TOTAL LONG-TERM INVESTMENTS (Cost $176,151,101)				201,138,088
	Principal Amount
SHORT-TERM INVESTMENTS — 2.3%
Repurchase Agreement — 2.3%
State Street Bank & Trust Co. Repurchase Agreement, dated 9/30/15, 0.010%, due 10/01/15 (b)	$	4,691,199		4,691,199
TOTAL SHORT-TERM INVESTMENTS (Cost $4,691,199)				4,691,199
TOTAL INVESTMENTS — 99.9% (Cost $180,842,300) (c)				205,829,287
Other Assets/(Liabilities) — 0.1%				113,391
NET ASSETS — 100.0%			$	205,942,678

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

ADR American Depositary Receipt

(a) Non-income producing security.

(b) Maturity value of $4,691,200. Collateralized by U.S. Government Agency obligations with a rate of 1.500%, maturity date of 1/31/22, and an aggregate market value, including accrued interest, of $4,786,650.

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

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

42

MML Managed Volatility Fund – Portfolio of Investments

September 30, 2015 (Unaudited)

	Number of Shares		Value
EQUITIES — 98.4%
COMMON STOCK — 98.4%
Basic Materials — 2.5%
Chemicals — 2.1%
Air Products & Chemicals, Inc. (a)		2,177	$	277,743
Airgas, Inc. (a)		763		68,159
CF Industries Holdings, Inc. (a)		2,705		121,454
The Chemours Co. (a)		2,044		13,225
The Dow Chemical Co. (a)		12,286		520,926
E.I. du Pont de Nemours & Co. (a)		10,222		492,700
Eastman Chemical Co. (a)		1,678		108,600
Ecolab, Inc. (a)		3,040		333,549
FMC Corp. (a)		1,505		51,034
International Flavors & Fragrances, Inc. (a)		911		94,070
LyondellBasell Industries NV Class A (a)		4,471		372,703
Monsanto Co. (a)		5,456		465,615
The Mosaic Co. (a)		3,511		109,227
PPG Industries, Inc. (a)		3,072		269,384
Praxair, Inc. (a)		3,260		332,064
The Sherwin-Williams Co. (a)		911		202,953
Sigma-Aldrich Corp. (a)		1,348		187,264
				4,020,670
Forest Products & Paper — 0.1%
International Paper Co. (a)		4,774		180,409
Iron & Steel — 0.1%
Nucor Corp. (a)		3,602		135,255
Mining — 0.2%
Alcoa, Inc. (a)		13,798		133,289
Freeport-McMoRan, Inc. (a)		11,739		113,751
Newmont Mining Corp. (a)		5,632		90,506
Vulcan Materials Co. (a)		1,491		132,997
				470,543
				4,806,877
Communications — 13.1%
Advertising — 0.2%
The Interpublic Group of Companies, Inc. (a)		4,655		89,050
Nielsen Holdings PLC (a)		3,562		158,402
Omnicom Group, Inc. (a)		2,785		183,532
				430,984
Internet — 5.7%
Akamai Technologies, Inc. (a) (b)		2,019		139,432
Alphabet, Inc. Class A (a) (b)		3,224		2,058,105
Alphabet, Inc. Class C (a) (b)		3,238		1,970,064
Amazon.com, Inc. (a) (b)		4,299		2,200,615
eBay, Inc. (a) (b)		12,431		303,814
Equinix, Inc. (a)		638		174,429

	Number of Shares		Value
Expedia, Inc. (a)		1,116	$	131,331
F5 Networks, Inc. (a) (b)		814		94,261
Facebook, Inc. Class A (a) (b)		23,698		2,130,450
Netflix, Inc. (a) (b)		4,781		493,686
The Priceline Group, Inc. (a) (b)		586		724,800
Symantec Corp. (a)		7,704		149,997
TripAdvisor, Inc. (a) (b)		1,259		79,342
VeriSign, Inc. (a) (b)		1,188		83,825
Yahoo!, Inc. (a) (b)		9,829		284,157
				11,018,308
Media — 3.2%
Cablevision Systems Corp. Class A (a)		2,477		80,428
CBS Corp. Class B (a)		5,165		206,084
Comcast Corp. Class A (a)		28,688		1,631,773
Discovery Communications, Inc. Series A (a) (b)		1,678		43,678
Discovery Communications, Inc. Series C (a) (b)		3,051		74,109
Gannett Co., Inc. (a)		1,280		18,854
The McGraw Hill Financial, Inc. (a)		3,088		267,112
News Corp. Class A (a)		5,638		71,152
Scripps Networks Interactive Class A (a)		1,100		54,109
TEGNA, Inc. (a)		2,561		57,341
Time Warner Cable, Inc. (a)		3,171		568,782
Time Warner, Inc. (a)		9,376		644,600
Twenty-First Century Fox Class A (a)		20,643		556,948
Viacom, Inc. Class B (a)		4,123		177,908
The Walt Disney Co. (a)		17,652		1,804,034
				6,256,912
Telecommunications — 4.0%
AT&T, Inc. (a)		69,333		2,258,869
CenturyLink, Inc. (a)		6,395		160,642
Cisco Systems, Inc. (a)		57,630		1,512,787
Corning, Inc. (a)		14,353		245,723
Frontier Communications Corp.		11,317		53,756
Harris Corp. (a)		1,175		85,951
Juniper Networks, Inc. (a)		4,089		105,128
Level 3 Communications, Inc. (a) (b)		3,237		141,425
Motorola Solutions, Inc. (a)		2,152		147,154
QUALCOMM, Inc. (a)		18,623		1,000,614
Verizon Communications, Inc. (a)		46,913		2,041,185
				7,753,234
				25,459,438
Consumer, Cyclical — 10.6%
Airlines — 0.5%
American Airlines Group, Inc. (a)		8,097		314,407
Delta Air Lines, Inc. (a)		9,305		417,515
Southwest Airlines Co. (a)		7,632		290,321
				1,022,243

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

43

MML Managed Volatility Fund – Portfolio of Investments (Continued)

	Number of Shares		Value
Apparel — 0.9%
Hanesbrands, Inc. (a)		4,525	$	130,953
Michael Kors Holdings Ltd. (a) (b)		2,266		95,716
Nike, Inc. Class B (a)		7,900		971,463
Ralph Lauren Corp. (a)		680		80,349
Under Armour, Inc. Class A (a) (b)		1,884		182,333
VF Corp. (a)		3,865		263,632
				1,724,446
Auto Manufacturers — 0.7%
Ford Motor Co. (a)		44,661		606,050
General Motors Co. (a)		15,271		458,436
Paccar, Inc. (a)		4,002		208,784
				1,273,270
Automotive & Parts — 0.4%
BorgWarner, Inc. (a)		2,556		106,304
Delphi Automotive PLC (a)		3,277		249,183
The Goodyear Tire & Rubber Co. (a)		3,043		89,251
Johnson Controls, Inc. (a)		7,421		306,933
				751,671
Distribution & Wholesale — 0.2%
Fastenal Co. (a)		3,069		112,356
Fossil Group, Inc. (a) (b)		500		27,940
Genuine Parts Co. (a)		1,724		142,902
W.W. Grainger, Inc. (a)		677		145,562
				428,760
Home Builders — 0.1%
D.R. Horton, Inc. (a)		3,754		110,217
Lennar Corp. Class A (a)		2,016		97,030
PulteGroup, Inc. (a)		3,741		70,593
				277,840
Home Furnishing — 0.1%
Harman International Industries, Inc. (a)		775		74,392
Whirlpool Corp. (a)		882		129,884
				204,276
Housewares — 0.1%
Newell Rubbermaid, Inc. (a)		3,061		121,552
Leisure Time — 0.3%
Carnival Corp. (a)		5,085		252,725
Harley-Davidson, Inc. (a)		2,388		131,101
Royal Caribbean Cruises Ltd. (a)		1,860		165,707
				549,533
Lodging — 0.2%
Marriott International, Inc. Class A (a)		2,341		159,656
Starwood Hotels & Resorts Worldwide, Inc. (a)		1,938		128,838
Wyndham Worldwide Corp. (a)		1,361		97,856
Wynn Resorts Ltd.		915		48,605
				434,955

	Number of Shares		Value
Retail — 6.9%
Advance Auto Parts, Inc. (a)		840	$	159,205
AutoNation, Inc. (a) (b)		846		49,220
AutoZone, Inc. (a) (b)		360		260,579
Bed Bath & Beyond, Inc. (a) (b)		2,095		119,457
Best Buy Co., Inc. (a)		3,287		122,013
CarMax, Inc. (a) (b)		2,371		140,648
Chipotle Mexican Grill, Inc. (a) (b)		350		252,088
Coach, Inc. (a)		3,114		90,088
Costco Wholesale Corp. (a)		4,967		718,079
CVS Health Corp. (a)		12,704		1,225,682
Darden Restaurants, Inc. (a)		1,400		95,956
Dollar General Corp. (a)		3,426		248,180
Dollar Tree, Inc. (a) (b)		2,591		172,716
GameStop Corp. Class A (a)		1,225		50,482
The Gap, Inc. (a)		2,994		85,329
The Home Depot, Inc. (a)		14,878		1,718,260
Kohl’s Corp. (a)		2,280		105,587
L Brands, Inc. (a)		2,776		250,201
Lowe’s Cos., Inc. (a)		10,984		757,017
Macy’s, Inc. (a)		3,845		197,325
McDonald’s Corp. (a)		10,851		1,069,149
Nordstrom, Inc. (a)		1,588		113,876
O’Reilly Automotive, Inc. (a) (b)		1,148		287,000
PVH Corp. (a)		931		94,906
Ross Stores, Inc. (a)		4,674		226,549
Signet Jewelers Ltd. (a)		900		122,517
Staples, Inc. (a)		7,231		84,820
Starbucks Corp. (a)		16,930		962,301
Target Corp. (a)		7,191		565,644
Tiffany & Co. (a)		1,271		98,147
The TJX Cos., Inc. (a)		7,707		550,434
Tractor Supply Co. (a)		1,538		129,684
Urban Outfitters, Inc. (a) (b)		1,129		33,170
Wal-Mart Stores, Inc. (a)		17,830		1,156,097
Walgreens Boots Alliance, Inc. (a)		9,844		818,036
Yum! Brands, Inc. (a)		4,890		390,956
				13,521,398
Textiles — 0.1%
Cintas Corp. (a)		1,099		94,239
Mohawk Industries, Inc. (a) (b)		701		127,435
				221,674
Toys, Games & Hobbies — 0.1%
Hasbro, Inc. (a)		1,263		91,113
Mattel, Inc. (a)		3,819		80,428
				171,541
				20,703,159
Consumer, Non-cyclical — 24.3%
Agriculture — 1.7%
Altria Group, Inc. (a)		22,233		1,209,475
Archer-Daniels-Midland Co. (a)		7,161		296,824

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

44

MML Managed Volatility Fund – Portfolio of Investments (Continued)

	Number of Shares		Value
Philip Morris International, Inc. (a)		17,464	$	1,385,419
Reynolds American, Inc. (a)		9,322		412,685
				3,304,403
Beverages — 2.3%
Brown-Forman Corp. Class B (a)		1,759		170,447
The Coca-Cola Co. (a)		44,364		1,779,884
Coca-Cola Enterprises, Inc. (a)		2,450		118,458
Constellation Brands, Inc. Class A (a)		1,900		237,899
Dr. Pepper Snapple Group, Inc. (a)		2,178		172,171
Keurig Green Mountain, Inc. (a)		1,369		71,380
Molson Coors Brewing Co. Class B (a)		1,805		149,851
Monster Beverage Corp. (a) (b)		1,651		223,116
PepsiCo, Inc. (a)		16,735		1,578,110
				4,501,316
Biotechnology — 2.9%
Alexion Pharmaceuticals, Inc. (a) (b)		2,282		356,882
Amgen, Inc. (a)		8,567		1,184,987
Biogen, Inc. (a) (b)		2,649		773,005
Celgene Corp. (a) (b)		9,038		977,640
Gilead Sciences, Inc. (a)		16,815		1,651,065
Regeneron Pharmaceuticals, Inc. (a) (b)		832		386,996
Vertex Pharmaceuticals, Inc. (a) (b)		2,733		284,615
				5,615,190
Commercial Services — 2.6%
The ADT Corp. (a)		1,932		57,767
Alliance Data Systems Corp. (a) (b)		709		183,617
Automatic Data Processing, Inc. (a)		5,364		431,051
Equifax, Inc. (a)		1,349		131,096
H&R Block, Inc. (a)		3,107		112,473
MasterCard, Inc. Class A (a)		11,021		993,213
McKesson Corp. (a)		2,629		486,444
Moody’s Corp. (a)		2,007		197,087
Paychex, Inc. (a)		3,689		175,707
PayPal Holdings, Inc. (a) (b)		12,431		385,858
Quanta Services, Inc. (a) (b)		2,387		57,789
Robert Half International, Inc. (a)		1,526		78,070
Total System Services, Inc. (a)		1,859		84,454
United Rentals, Inc. (a) (b)		1,090		65,455
Visa, Inc. Class A (a)		21,901		1,525,624
Western Union Co. (a)		5,887		108,085
				5,073,790
Cosmetics & Personal Care — 1.5%
Colgate-Palmolive Co. (a)		9,626		610,866
The Estee Lauder Cos., Inc. Class A (a)		2,518		203,152
The Procter & Gamble Co. (a)		30,488		2,193,307
				3,007,325
Foods — 1.8%
Campbell Soup Co. (a)		2,006		101,664
ConAgra Foods, Inc. (a)		4,808		194,772

	Number of Shares		Value
General Mills, Inc. (a)		6,816	$	382,582
The Hershey Co. (a)		1,670		153,440
Hormel Foods Corp. (a)		1,520		96,231
The J.M. Smucker Co. (a)		1,149		131,089
Kellogg Co. (a)		2,858		190,200
The Kraft Heinz Co. (a)		6,638		468,510
The Kroger Co. (a)		11,094		400,161
McCormick & Co., Inc. (a)		1,448		118,997
Mondelez International, Inc. Class A (a)		18,619		779,578
Sysco Corp. (a)		6,687		260,592
Tyson Foods, Inc. Class A (a)		3,299		142,187
Whole Foods Market, Inc. (a)		4,073		128,910
				3,548,913
Health Care – Products — 3.2%
Baxter International, Inc. (a)		6,126		201,239
Becton, Dickinson & Co. (a)		2,357		312,680
Boston Scientific Corp. (a) (b)		15,021		246,494
C.R. Bard, Inc. (a)		838		156,128
Edwards Lifesciences Corp. (a) (b)		1,217		173,021
Henry Schein, Inc. (a) (b)		946		125,553
Intuitive Surgical, Inc. (a) (b)		413		189,806
Johnson & Johnson (a)		31,391		2,930,350
Medtronic PLC (a)		16,088		1,076,931
St. Jude Medical, Inc. (a)		3,176		200,374
Stryker Corp. (a)		3,378		317,870
Varian Medical Systems, Inc. (a) (b)		1,130		83,371
Zimmer Biomet Holdings, Inc. (a)		1,918		180,158
				6,193,975
Health Care – Services — 2.1%
Aetna, Inc. (a)		3,970		434,358
Anthem, Inc. (a)		3,012		421,680
Cigna Corp. (a)		2,917		393,853
DaVita HealthCare Partners, Inc. (a) (b)		1,949		140,971
HCA Holdings, Inc. (a) (b)		3,324		257,145
Humana, Inc. (a)		1,689		302,331
Laboratory Corporation of America Holdings (a) (b)		1,132		122,788
Quest Diagnostics, Inc. (a)		1,629		100,134
Tenet Healthcare Corp. (a) (b)		1,112		41,055
Thermo Fisher Scientific, Inc. (a)		4,479		547,692
UnitedHealth Group, Inc. (a)		10,767		1,249,080
Universal Health Services, Inc. Class B (a)		1,028		128,305
				4,139,392
Household Products — 0.4%
Avery Dennison Corp. (a)		1,022		57,814
The Clorox Co. (a)		1,481		171,100
Kimberly-Clark Corp. (a)		4,126		449,899
				678,813

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

45

MML Managed Volatility Fund – Portfolio of Investments (Continued)

	Number of Shares		Value
Pharmaceuticals — 5.8%
Abbott Laboratories (a)		17,036	$	685,188
AbbVie, Inc. (a)		19,424		1,056,860
Allergan PLC (a) (b)		4,408		1,198,139
AmerisourceBergen Corp. (a)		2,355		223,701
Baxalta, Inc. (a)		6,126		193,030
Bristol-Myers Squibb Co. (a)		18,764		1,110,829
Cardinal Health, Inc. (a)		3,727		286,308
DENTSPLY International, Inc. (a)		1,585		80,153
Eli Lilly & Co. (a)		11,039		923,854
Endo International PLC (a) (b)		2,004		138,837
Express Scripts Holding Co. (a) (b)		8,206		664,358
Mallinckrodt PLC (a) (b)		1,315		84,081
Mead Johnson Nutrition Co. (a)		2,284		160,794
Merck & Co., Inc. (a)		32,042		1,582,554
Mylan NV (a) (b)		4,593		184,914
Patterson Cos., Inc. (a)		967		41,823
Perrigo Co. PLC (a)		1,589		249,902
Pfizer, Inc. (a)		69,192		2,173,321
Zoetis, Inc. (a)		5,654		232,832
				11,271,478
				47,334,595
Diversified — 0.0%
Holding Company – Diversified — 0.0%
Leucadia National Corp. (a)		3,560		72,126
Energy — 6.8%
Coal — 0.0%
CONSOL Energy, Inc. (a)		2,600		25,480
Energy – Alternate Sources — 0.0%
First Solar, Inc. (a) (b)		849		36,295
Oil & Gas — 5.2%
Anadarko Petroleum Corp. (a)		5,720		345,431
Apache Corp. (a)		4,254		166,587
Cabot Oil & Gas Corp. (a)		4,664		101,955
Chesapeake Energy Corp. (a)		5,841		42,814
Chevron Corp. (a)		21,227		1,674,386
Cimarex Energy Co. (a)		989		101,353
ConocoPhillips (a)		13,903		666,788
Devon Energy Corp. (a)		4,363		161,824
Diamond Offshore Drilling, Inc. (a)		758		13,113
Ensco PLC Class A (a)		2,645		37,242
EOG Resources, Inc. (a)		6,192		450,778
EQT Corp. (a)		1,715		111,080
Exxon Mobil Corp. (a)		47,356		3,520,919
Helmerich & Payne, Inc. (a)		1,215		57,421
Hess Corp. (a)		2,743		137,314
Marathon Oil Corp. (a)		7,620		117,348
Marathon Petroleum Corp. (a)		6,166		285,671
Murphy Oil Corp. (a)		1,884		45,593
Newfield Exploration Co. (a) (b)		1,815		59,713
Noble Corp. PLC (a)		2,732		29,806
Noble Energy, Inc. (a)		4,366		131,766

	Number of Shares		Value
Occidental Petroleum Corp. (a)		8,699	$	575,439
Phillips 66 (a)		6,136		471,490
Pioneer Natural Resources Co. (a)		1,682		204,598
Range Resources Corp. (a)		1,872		60,129
Southwestern Energy Co. (a) (b)		4,340		55,075
Tesoro Corp. (a)		1,410		137,108
Valero Energy Corp. (a)		5,813		349,361
				10,112,102
Oil & Gas Services — 1.0%
Baker Hughes, Inc. (a)		4,906		255,308
Cameron International Corp. (a) (b)		2,187		134,107
FMC Technologies, Inc. (a) (b)		2,613		81,003
Halliburton Co. (a)		9,592		339,077
National Oilwell Varco, Inc. (a)		4,628		174,244
Schlumberger Ltd. (a)		14,398		993,030
Transocean Ltd. (a)		3,845		49,678
				2,026,447
Pipelines — 0.6%
Columbia Pipeline Group, Inc. (a)		3,570		65,295
Kinder Morgan, Inc. (a)		19,238		532,508
ONEOK, Inc. (a)		2,353		75,767
Spectra Energy Corp. (a)		7,576		199,021
The Williams Cos., Inc. (a)		7,599		280,023
				1,152,614
				13,352,938
Financial — 15.9%
Banks — 4.4%
Bank of America Corp. (a)		118,762		1,850,312
The Bank of New York Mellon Corp. (a)		12,575		492,311
BB&T Corp. (a)		8,138		289,713
Capital One Financial Corp. (a)		6,227		451,582
Comerica, Inc. (a)		2,013		82,734
Fifth Third Bancorp (a)		9,196		173,896
Huntington Bancshares, Inc. (a)		9,141		96,895
KeyCorp (a)		9,656		125,625
M&T Bank Corp. (a)		1,501		183,047
Northern Trust Corp. (a)		2,478		168,900
PNC Financial Services Group, Inc. (a)		5,878		524,318
Regions Financial Corp. (a)		15,161		136,601
State Street Corp. (a)		4,654		312,795
SunTrust Banks, Inc. (a)		5,922		226,457
U.S. Bancorp (a)		20,109		824,670
Wells Fargo & Co. (a)		52,932		2,718,058
Zions Bancorp (a)		2,291		63,094
				8,721,008
Diversified Financial — 4.7%
Affiliated Managers Group, Inc. (a) (b)		616		105,330
American Express Co. (a)		9,895		733,516

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

46

MML Managed Volatility Fund – Portfolio of Investments (Continued)

	Number of Shares		Value
Ameriprise Financial, Inc. (a)		2,060	$	224,808
BlackRock, Inc. (a)		1,432		425,977
The Charles Schwab Corp. (a)		13,025		371,994
Citigroup, Inc. (a)		34,251		1,699,192
CME Group, Inc. (a)		3,580		332,009
Discover Financial Services (a)		5,049		262,498
E*TRADE Financial Corp. (a) (b)		3,260		85,836
Franklin Resources, Inc. (a)		4,423		164,801
The Goldman Sachs Group, Inc. (a)		4,573		794,604
Intercontinental Exchange, Inc. (a)		1,264		297,027
Invesco Ltd. (a)		4,846		151,341
JP Morgan Chase & Co. (a)		42,091		2,566,288
Legg Mason, Inc. (a)		1,119		46,562
Morgan Stanley (a)		17,406		548,289
The Nasdaq, Inc. (a)		1,334		71,142
Navient Corp. (a)		4,532		50,940
T. Rowe Price Group, Inc. (a)		2,944		204,608
				9,136,762
Insurance — 4.1%
ACE Ltd. (a)		3,696		382,166
Aflac, Inc. (a)		4,955		288,034
The Allstate Corp. (a)		4,701		273,786
American International Group, Inc. (a)		15,494		880,369
Aon PLC (a)		3,164		280,362
Assurant, Inc.		777		61,391
Berkshire Hathaway, Inc. Class B (a) (b)		20,589		2,684,806
The Chubb Corp. (a)		2,606		319,626
Cincinnati Financial Corp. (a)		1,668		89,738
Genworth Financial, Inc. Class A (a) (b)		5,608		25,909
The Hartford Financial Services Group, Inc. (a)		4,752		217,547
Lincoln National Corp. (a)		2,895		137,397
Loews Corp. (a)		3,370		121,792
Marsh & McLennan Cos., Inc. (a)		6,082		317,602
MetLife, Inc. (a)		12,615		594,797
Principal Financial Group, Inc. (a)		3,088		146,186
The Progressive Corp. (a)		6,050		185,372
Prudential Financial, Inc. (a)		5,125		390,576
Torchmark Corp. (a)		1,435		80,934
The Travelers Cos., Inc. (a)		3,628		361,095
Unum Group (a)		2,838		91,043
XL Group PLC (a)		2,882		104,674
				8,035,202
Real Estate — 0.1%
CBRE Group, Inc. (a) (b)		3,158		101,056
Real Estate Investment Trusts (REITS) — 2.5%
American Tower Corp. (a)		4,771		419,753
Apartment Investment & Management Co. Class A (a)		1,764		65,303
AvalonBay Communities, Inc. (a)		1,490		260,482

	Number of Shares		Value
Boston Properties, Inc. (a)		1,729	$	204,714
Crown Castle International Corp. (a)		3,769		297,261
Equity Residential (a)		4,107		308,518
Essex Property Trust, Inc. (a)		735		164,214
General Growth Properties, Inc. (a)		7,093		184,205
HCP, Inc. (a)		5,202		193,775
Host Hotels & Resorts, Inc. (a)		8,552		135,207
Iron Mountain, Inc. (a)		2,111		65,483
Kimco Realty Corp. (a)		4,658		113,795
The Macerich Co. (a)		1,589		122,067
Plum Creek Timber Co., Inc. (a)		1,988		78,546
Prologis, Inc. (a)		5,782		224,920
Public Storage (a)		1,638		346,650
Realty Income Corp. (a)		2,519		119,375
Simon Property Group, Inc. (a)		3,509		644,673
SL Green Realty Corp. (a)		1,113		120,382
Ventas, Inc. (a)		3,735		209,384
Vornado Realty Trust (a)		1,973		178,399
Welltower, Inc. (a)		3,945		267,155
Weyerhaeuser Co. (a)		5,927		162,044
				4,886,305
Savings & Loans — 0.1%
Hudson City Bancorp, Inc. (a)		5,434		55,264
People’s United Financial, Inc. (a)		3,480		54,740
				110,004
				30,990,337
Industrial — 9.5%
Aerospace & Defense — 2.0%
The Boeing Co. (a)		7,396		968,506
General Dynamics Corp. (a)		3,558		490,826
L-3 Communications Holdings, Inc. (a)		931		97,308
Lockheed Martin Corp. (a)		3,028		627,735
Northrop Grumman Corp. (a)		2,240		371,728
Raytheon Co. (a)		3,470		379,132
Rockwell Collins, Inc. (a)		1,501		122,842
United Technologies Corp. (a)		9,329		830,188
				3,888,265
Airlines — 0.1%
United Continental Holdings, Inc. (a) (b)		3,680		195,224
Building Materials — 0.1%
Martin Marietta Materials, Inc. (a)		698		106,061
Masco Corp. (a)		3,946		99,360
				205,421
Electrical Components & Equipment — 0.2%
AMETEK, Inc. (a)		2,722		142,415
Emerson Electric Co. (a)		7,735		341,655
				484,070

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

47

MML Managed Volatility Fund – Portfolio of Investments (Continued)

	Number of Shares		Value
Electronics — 0.5%
Agilent Technologies, Inc. (a)		3,791	$	130,145
Allegion PLC (a)		1,084		62,504
Amphenol Corp. Class A (a)		3,502		178,462
FLIR Systems, Inc. (a)		1,578		44,168
Garmin Ltd. (a)		1,364		48,940
PerkinElmer, Inc. (a)		1,276		58,645
TE Connectivity Ltd. (a)		4,586		274,656
Tyco International PLC (a)		4,742		158,667
Waters Corp. (a) (b)		937		110,763
				1,066,950
Engineering & Construction — 0.1%
Fluor Corp. (a)		1,668		70,640
Jacobs Engineering Group, Inc. (b)		1,449		54,236
TopBuild Corp. (a) (b)		438		13,565
				138,441
Environmental Controls — 0.3%
Republic Services, Inc. (a)		2,830		116,596
Stericycle, Inc. (a) (b)		959		133,598
Waste Management, Inc. (a)		4,820		240,084
				490,278
Hand & Machine Tools — 0.1%
Snap-on, Inc. (a)		656		99,017
Stanley Black & Decker, Inc. (a)		1,777		172,333
				271,350
Machinery – Construction & Mining — 0.3%
Caterpillar, Inc. (a)		6,843		447,259
Ingersoll-Rand PLC (a)		2,973		150,939
Joy Global, Inc. (a)		1,099		16,408
				614,606
Machinery – Diversified — 0.5%
Cummins, Inc. (a)		1,901		206,411
Deere & Co. (a)		3,833		283,642
Flowserve Corp. (a)		1,521		62,574
Rockwell Automation, Inc. (a)		1,530		155,249
Roper Technologies, Inc. (a)		1,133		177,541
Xylem, Inc. (a)		2,058		67,605
				953,022
Manufacturing — 3.3%
3M Co. (a)		7,166		1,015,924
Danaher Corp. (a)		6,932		590,676
Dover Corp. (a)		1,840		105,211
Eaton Corp. PLC (a)		5,358		274,865
General Electric Co. (a)		113,629		2,865,723
Honeywell International, Inc. (a)		8,836		836,681
Illinois Tool Works, Inc. (a)		3,941		324,384
Leggett & Platt, Inc. (a)		1,562		64,433
Parker Hannifin Corp. (a)		1,608		156,458
Pentair PLC (a)		2,060		105,142
Textron, Inc. (a)		3,125		117,625
				6,457,122

	Number of Shares		Value
Metal Fabricate & Hardware — 0.2%
Precision Castparts Corp. (a)		1,601	$	367,766
Packaging & Containers — 0.2%
Ball Corp. (a)		1,551		96,472
Owens-Illinois, Inc. (a) (b)		1,854		38,415
Sealed Air Corp. (a)		2,373		111,246
WestRock Co. (a)		2,948		151,645
				397,778
Transportation — 1.6%
American ExpressNorfolk Southern Corp. (a)		3,471		265,184
C.H. Robinson Worldwide, Inc. (a)		1,652		111,973
CSX Corp. (a)		11,183		300,823
Expeditors International of Washington, Inc. (a)		2,164		101,816
FedEx Corp. (a)		2,974		428,197
J.B. Hunt Transport Services, Inc. (a)		1,050		74,970
Kansas City Southern (a)		1,246		113,236
Ryder System, Inc. (a)		598		44,276
Union Pacific Corp. (a)		9,949		879,591
United Parcel Service, Inc. Class B (a)		7,846		774,322
				3,094,388
				18,624,681
Technology — 12.6%
Computers — 6.0%
Accenture PLC Class A (a)		7,091		696,762
Apple, Inc. (a)		65,759		7,253,218
Cognizant Technology Solutions Corp. Class A (a) (b)		6,882		430,882
Computer Sciences Corp. (a)		1,592		97,717
EMC Corp. (a)		22,445		542,271
Hewlett-Packard Co. (a)		20,520		525,517
International Business Machines Corp. (a)		10,378		1,504,499
NetApp, Inc. (a)		3,520		104,192
SanDisk Corp. (a)		2,405		130,664
Seagate Technology PLC (a)		3,707		166,073
Teradata Corp. (a) (b)		1,638		47,436
Western Digital Corp. (a)		2,452		194,787
				11,694,018
Office Equipment/Supplies — 0.1%
Pitney Bowes, Inc. (a)		2,276		45,179
Xerox Corp. (a)		11,802		114,833
				160,012
Semiconductors — 2.3%
Altera Corp. (a)		3,397		170,122
Analog Devices, Inc. (a)		3,518		198,450
Applied Materials, Inc. (a)		13,872		203,780
Avago Technologies Ltd. (a)		2,896		362,029
Broadcom Corp. Class A (a)		6,154		316,500
Intel Corp. (a)		53,468		1,611,526

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

48

MML Managed Volatility Fund – Portfolio of Investments (Continued)

	Number of Shares		Value
KLA-Tencor Corp. (a)		1,836	$	91,800
Lam Research Corp. (a)		1,799		117,529
Linear Technology Corp. (a)		2,700		108,945
Microchip Technology, Inc. (a)		2,274		97,987
Micron Technology, Inc. (a) (b)		12,162		182,187
NVIDIA Corp. (a)		5,830		143,709
Qorvo, Inc. (a) (b)		1,660		74,783
Skyworks Solutions, Inc. (a)		2,154		181,388
Texas Instruments, Inc. (a)		11,821		585,376
Xilinx, Inc. (a)		2,951		125,122
				4,571,233
Software — 4.2%
Activision Blizzard, Inc. (a)		5,600		172,984
Adobe Systems, Inc. (a) (b)		5,372		441,686
Autodesk, Inc. (a) (b)		2,559		112,954
CA, Inc. (a)		3,599		98,253
Cerner Corp. (a) (b)		3,442		206,382
Citrix Systems, Inc. (a) (b)		1,804		124,981
The Dun & Bradstreet Corp. (a)		406		42,630
Electronic Arts, Inc. (a) (b)		3,510		237,803
Fidelity National Information Services, Inc. (a)		3,218		215,863
Fiserv, Inc. (a) (b)		2,695		233,414
Intuit, Inc. (a)		3,124		277,255
Microsoft Corp. (a)		92,617		4,099,228
Oracle Corp. (a)		36,191		1,307,219
Red Hat, Inc. (a) (b)		2,070		148,792
Salesforce.com, Inc. (a) (b)		6,831		474,276
				8,193,720
				24,618,983
Utilities — 3.1%
Electric — 2.9%
The AES Corp. (a)		7,298		71,448
Ameren Corp. (a)		2,739		115,778
American Electric Power Co., Inc. (a)		5,527		314,265
CenterPoint Energy, Inc. (a)		4,852		87,530
CMS Energy Corp. (a)		3,110		109,845
Consolidated Edison, Inc. (a)		3,307		221,073
Dominion Resources, Inc. (a)		6,640		467,323
DTE Energy Co. (a)		2,001		160,820
Duke Energy Corp. (a)		7,988		574,657
Edison International (a)		3,678		231,972
Entergy Corp. (a)		2,037		132,609
Eversource Energy (a)		3,577		181,068
Exelon Corp. (a)		9,707		288,298
FirstEnergy Corp. (a)		4,755		148,879
NextEra Energy, Inc. (a)		5,006		488,335
NRG Energy, Inc.		3,812		56,608
Pepco Holdings, Inc. (a)		2,854		69,124
PG&E Corp. (a)		5,378		283,958
Pinnacle West Capital Corp. (a)		1,248		80,047
PPL Corp. (a)		7,529		247,629

	Number of Shares		Value
Public Service Enterprise Group, Inc. (a)		5,715	$	240,944
SCANA Corp. (a)		1,613		90,747
The Southern Co. (a)		10,272		459,158
TECO Energy, Inc. (a)		2,659		69,825
WEC Energy Group, Inc. (a)		4,558		238,019
Xcel Energy, Inc. (a)		5,712		202,262
				5,632,221
Gas — 0.2%
AGL Resources, Inc. (a)		1,350		82,404
NiSource, Inc. (a)		3,570		66,224
Sempra Energy (a)		2,614		252,826
				401,454
				6,033,675
TOTAL COMMON STOCK (Cost $180,941,031)				191,996,809
TOTAL EQUITIES (Cost $180,941,031)				191,996,809
	Principal Amount
BONDS & NOTES — 0.0%
CORPORATE DEBT — 0.0%
Forest Products & Paper — 0.0%
Sino Forest Corp. (c) 5.000% 8/01/49	$	359,000		-
TOTAL CORPORATE DEBT (Cost $0)				-
TOTAL BONDS & NOTES (Cost $0)				-
	Units
PURCHASED OPTIONS — 0.5%
Financial — 0.5%
Diversified Financial — 0.5%
S&P 500 Index, Put, Expires 10/16/15, Strike 1,700.00		152		30,400
S&P 500 Index, Put, Expires 10/16/15, Strike 1,725.00		155		42,625
S&P 500 Index, Put, Expires 11/20/15, Strike 1,700.00		167		226,118
S&P 500 Index, Put, Expires 11/20/15, Strike 1,725.00		104		166,400
S&P 500 Index, Put, Expires 12/19/15, Strike 1,725.00		155		449,500
				915,043

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

49

MML Managed Volatility Fund – Portfolio of Investments (Continued)

			Value
TOTAL PURCHASED OPTIONS (Cost $1,991,043)			$	915,043
TOTAL LONG-TERM INVESTMENTS (Cost $182,932,074)				192,911,852
	Principal Amount
SHORT-TERM INVESTMENTS — 5.6%
Repurchase Agreement — 5.6%
State Street Bank & Trust Co. Repurchase Agreement, dated 9/30/15, 0.010%, due 10/01/15 (d)	$	10,969,452		10,969,452
TOTAL SHORT-TERM INVESTMENTS (Cost $10,969,452)				10,969,452
TOTAL INVESTMENTS — 104.5% (Cost $193,901,526) (e)				203,881,304
Other Assets/(Liabilities) — (4.5)%				(8,854,997	)
NET ASSETS — 100.0%			$	195,026,307

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

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

(b) Non-income producing security.

(c) This security is fair valued in good faith in accordance with procedures approved by the Board of Trustees. At September 30, 2015, these securities amounted to a value of $0 or 0.00% of net assets.

(d) Maturity value of $10,969,455. Collateralized by U.S. Government Agency obligations with a rate of 2.000%, maturity date of 10/31/21, and an aggregate market value, including accrued interest, of $11,191,256.

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

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

50

MML Mid Cap Growth Fund – Portfolio of Investments

September 30, 2015 (Unaudited)

	Number of Shares		Value
EQUITIES — 92.6%
COMMON STOCK — 92.1%
Basic Materials — 3.1%
Chemicals — 2.2%
Ashland, Inc.		20,000	$	2,012,400
Celanese Corp. Series A		37,000		2,189,290
Cytec Industries, Inc.		25,000		1,846,250
RPM International, Inc.		79,000		3,309,310
				9,357,250
Mining — 0.9%
Franco-Nevada Corp.		10,000		440,200
Franco-Nevada Corp. (a)		78,000		3,437,377
				3,877,577
				13,234,827
Communications — 6.5%
Internet — 3.9%
Akamai Technologies, Inc. (b)		48,000		3,314,880
Coupons.com, Inc. (a) (b)		53,900		485,100
Dropbox, Inc. (c)		9,011		120,117
GrubHub, Inc. (a) (b)		25,000		608,500
LinkedIn Corp. Class A (b)		4,000		760,520
Rackspace Hosting, Inc. (b)		39,500		974,860
TripAdvisor, Inc. (b)		26,000		1,638,520
VeriSign, Inc. (a) (b)		88,000		6,209,280
Zillow Group, Inc. Class A (a) (b)		26,000		746,980
Zillow Group, Inc. Class C (a) (b)		52,000		1,404,000
				16,262,757
Media — 0.5%
FactSet Research Systems, Inc.		14,000		2,237,340
Telecommunications — 2.1%
DigitalGlobe, Inc. (b)		96,000		1,825,920
Palo Alto Networks, Inc. (b)		6,000		1,032,000
T-Mobile US, Inc. (b)		141,000		5,613,210
Viavi Solutions, Inc. (b)		70,000		375,900
				8,847,030
				27,347,127
Consumer, Cyclical — 16.3%
Apparel — 1.1%
Hanesbrands, Inc.		140,000		4,051,600
Wolverine World Wide, Inc.		35,000		757,400
				4,809,000
Auto Manufacturers — 0.2%
Tesla Motors, Inc. (a) (b)		3,000		745,200
Automotive & Parts — 1.0%
BorgWarner, Inc.		70,000		2,911,300
WABCO Holdings, Inc. (b)		13,000		1,362,790
				4,274,090

	Number of Shares		Value
Distribution & Wholesale — 0.1%
Fastenal Co. (a)		18,000	$	658,980
Home Furnishing — 0.4%
Harman International Industries, Inc.		17,000		1,631,830
Leisure Time — 2.9%
Harley-Davidson, Inc.		34,000		1,866,600
Norwegian Cruise Line Holdings Ltd. (b)		133,000		7,620,900
Royal Caribbean Cruises Ltd.		31,000		2,761,790
				12,249,290
Lodging — 1.7%
Choice Hotels International, Inc.		52,000		2,477,800
Marriott International, Inc. Class A		44,000		3,000,800
MGM Resorts International (b)		88,000		1,623,600
				7,102,200
Retail — 8.9%
AutoZone, Inc. (b)		9,000		6,514,470
CarMax, Inc. (b)		127,000		7,533,640
Chipotle Mexican Grill, Inc. (b)		2,000		1,440,500
Dollar General Corp.		61,000		4,418,840
L Brands, Inc.		39,000		3,515,070
The Michaels Cos., Inc. (b)		101,000		2,333,100
O’Reilly Automotive, Inc. (b)		26,000		6,500,000
PVH Corp.		22,000		2,242,680
Rite Aid Corp. (b)		481,000		2,919,670
				37,417,970
				68,888,560
Consumer, Non-cyclical — 23.9%
Biotechnology — 3.0%
Alkermes PLC (b)		92,000		5,397,640
Illumina, Inc. (b)		10,000		1,758,200
Incyte Corp. (b)		31,000		3,420,230
Vertex Pharmaceuticals, Inc. (b)		18,000		1,874,520
				12,450,590
Commercial Services — 8.6%
Aramark		96,000		2,845,440
CoreLogic, Inc. (b)		94,200		3,507,066
Equifax, Inc.		53,000		5,150,540
Gartner, Inc. (b)		35,000		2,937,550
Global Payments, Inc.		52,000		5,965,960
Manpower, Inc.		31,000		2,538,590
Towers Watson & Co. Class A		26,000		3,051,880
TransUnion (b)		26,000		653,120
Vantiv, Inc. Class A (b)		105,000		4,716,600
Verisk Analytics, Inc. (b)		61,000		4,508,510
Wework Cos., Inc. Class A (c)		12,099		397,931
				36,273,187

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

51

MML Mid Cap Growth Fund – Portfolio of Investments (Continued)

	Number of Shares		Value
Foods — 2.0%
Blue Buffalo Pet Products, Inc. (b)		10,000	$	179,100
Sprouts Farmers Market, Inc. (b)		87,000		1,835,700
TreeHouse Foods, Inc. (b)		22,000		1,711,380
The WhiteWave Foods Co. (b)		79,000		3,171,850
Whole Foods Market, Inc.		53,000		1,677,450
				8,575,480
Health Care – Products — 5.8%
Bruker Corp. (b)		165,000		2,710,950
The Cooper Cos., Inc.		32,000		4,763,520
Henry Schein, Inc. (b)		35,000		4,645,200
Hologic, Inc. (b)		52,000		2,034,760
IDEXX Laboratories, Inc. (b)		44,000		3,267,000
Intuitive Surgical, Inc. (b)		12,000		5,514,960
West Pharmaceutical Services, Inc.		26,400		1,428,768
				24,365,158
Health Care – Services — 2.5%
Catalent, Inc. (b)		115,000		2,794,500
Envision Healthcare Holdings, Inc. (b)		60,000		2,207,400
MEDNAX, Inc. (b)		44,000		3,378,760
Universal Health Services, Inc. Class B		17,000		2,121,770
				10,502,430
Pharmaceuticals — 2.0%
Alnylam Pharmaceuticals, Inc. (b)		9,000		723,240
Baxalta, Inc.		90,000		2,835,900
DENTSPLY International, Inc.		87,000		4,399,590
Mallinckrodt PLC (b)		9,000		575,460
				8,534,190
				100,701,035
Energy — 2.4%
Oil & Gas — 2.4%
Cimarex Energy Co.		18,000		1,844,640
Concho Resources, Inc. (b)		26,000		2,555,800
EQT Corp.		51,000		3,303,270
Pioneer Natural Resources Co.		9,000		1,094,760
Range Resources Corp.		44,000		1,413,280
				10,211,750
Financial — 9.7%
Diversified Financial — 5.4%
CBOE Holdings, Inc.		70,000		4,695,600
E*TRADE Financial Corp. (b)		52,000		1,369,160
FNF Group		176,000		6,242,720
Intercontinental Exchange, Inc.		19,000		4,464,810
LPL Financial Holdings, Inc. (a)		61,000		2,425,970
TD Ameritrade Holding Corp.		123,000		3,916,320
				23,114,580

	Number of Shares		Value
Insurance — 3.4%
HCC Insurance Holdings, Inc.		70,000	$	5,422,900
The Progressive Corp.		136,000		4,167,040
Willis Group Holdings PLC		114,000		4,670,580
				14,260,520
Real Estate — 0.9%
Jones Lang LaSalle, Inc.		26,000		3,738,020
				41,113,120
Industrial — 17.6%
Building Materials — 0.8%
Martin Marietta Materials, Inc.		22,000		3,342,900
Electrical Components & Equipment — 2.0%
Acuity Brands, Inc.		16,000		2,809,280
AMETEK, Inc.		80,000		4,185,600
Mobileye NV (a) (b)		32,000		1,455,360
				8,450,240
Electronics — 5.0%
Agilent Technologies, Inc.		123,000		4,222,590
Allegion PLC		66,000		3,805,560
FEI Co.		37,000		2,702,480
Keysight Technologies, Inc. (b)		131,000		4,040,040
Mettler-Toledo International, Inc. (b)		4,000		1,138,960
Sensata Technologies Holding NV (b)		105,000		4,655,700
Trimble Navigation Ltd. (b)		26,000		426,920
				20,992,250
Environmental Controls — 0.8%
Waste Connections, Inc.		70,000		3,400,600
Machinery – Diversified — 3.4%
Cognex Corp.		26,000		893,620
IDEX Corp.		73,000		5,204,900
Nordson Corp.		13,000		818,220
Roper Technologies, Inc.		35,000		5,484,500
Xylem, Inc.		66,000		2,168,100
				14,569,340
Manufacturing — 3.3%
Colfax Corp. (b)		63,000		1,884,330
Teleflex, Inc.		44,000		5,465,240
Textron, Inc.		175,000		6,587,000
				13,936,570
Metal Fabricate & Hardware — 0.2%
Rexnord Corp. (b)		62,100		1,054,458
Packaging & Containers — 0.8%
Ball Corp.		52,000		3,234,400
Transportation — 1.3%
J.B. Hunt Transport Services, Inc.		31,000		2,213,400
Kansas City Southern		36,000		3,271,680
				5,485,080
				74,465,838

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

52

MML Mid Cap Growth Fund – Portfolio of Investments (Continued)

	Number of Shares		Value
Technology — 12.5%
Computers — 2.0%
Fortinet, Inc. (b)		18,000	$	764,640
IHS, Inc. Class A (b)		61,000		7,076,000
Lumentum Holdings, Inc. (b)		28,000		474,600
				8,315,240
Semiconductors — 2.7%
Altera Corp.		61,000		3,054,880
Atmel Corp.		297,000		2,396,790
Microchip Technology, Inc. (a)		92,000		3,964,280
Xilinx, Inc.		48,000		2,035,200
				11,451,150
Software — 7.8%
Atlassian Corp. Depository Receipt (c)		15,775		299,725
Atlassian Corp. PLC A Depository Receipt (c)		5,668		107,692
Atlassian Corp. PLC Series 1 Depository Receipt (c)		12,075		229,425
Atlassian Series 1 Restricted Depository Receipt (c)		5,892		111,948
Atlassian Series A Preference Depository Receipt (c)		11,666		221,654
Fidelity National Information Services, Inc.		44,000		2,951,520
Fiserv, Inc. (b)		123,000		10,653,030
Guidewire Software, Inc. (b)		6,000		315,480
IMS Health Holdings, Inc. (b)		79,000		2,298,900
MSCI, Inc.		74,000		4,400,040
NetSuite, Inc. (a) (b)		9,000		755,100
Red Hat, Inc. (b)		74,000		5,319,120
Servicenow, Inc. (b)		16,000		1,111,200
SS&C Technologies Holdings, Inc		35,000		2,451,400
Veeva Systems, Inc. Class A (b)		53,000		1,240,730
Workday, Inc. Class A (b)		6,000		413,160
				32,880,124
				52,646,514
Utilities — 0.1%
Gas — 0.1%
Atmos Energy Corp.		7,700		447,986
TOTAL COMMON STOCK (Cost $280,504,480)				389,056,757
PREFERRED STOCK — 0.5%
Communications — 0.2%
Internet — 0.2%
Dropbox, Inc. Series A (b) (c)		11,190		149,163
Dropbox, Inc. Series A 1 (b) (c)		54,965		732,683

	Number of Shares		Value
Living Social (b) (c)		158,890	$	12,679
				894,525
Consumer, Non-cyclical — 0.3%
Commercial Services — 0.3%
Wework, Inc. Series D 1 (b) (c)		22,197		730,050
Wework, Inc. Series D 2 (b) (c)		17,440		573,594
				1,303,644
TOTAL PREFERRED STOCK (Cost $2,156,533)				2,198,169
TOTAL EQUITIES (Cost $282,661,013)				391,254,926
MUTUAL FUNDS — 6.0%
Diversified Financial — 6.0%
State Street Navigator Securities Lending Prime Portfolio (d)		15,296,304		15,296,304
T. Rowe Price Government Reserve Investment Fund		10,000,394		10,000,394
				25,296,698
TOTAL MUTUAL FUNDS (Cost $25,296,698)				25,296,698
TOTAL LONG-TERM INVESTMENTS (Cost $307,957,711)				416,551,624
	Principal Amount
SHORT-TERM INVESTMENTS — 4.9%
Repurchase Agreement — 4.9%
State Street Bank & Trust Co. Repurchase Agreement, dated 9/30/15, 0.010%, due 10/01/15 (e)	$	20,728,073		20,728,073
Time Deposits — 0.0%
Euro Time Deposit 0.010% 10/01/15		15,049		15,049
TOTAL SHORT-TERM INVESTMENTS (Cost $20,743,122)				20,743,122
TOTAL INVESTMENTS — 103.5% (Cost $328,700,833) (f)				437,294,746
Other Assets/(Liabilities) — (3.5)%				(14,792,948	)
NET ASSETS — 100.0%			$	422,501,798

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

53

MML Mid Cap Growth Fund – Portfolio of Investments (Continued)

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

(a) Denotes all or a portion of security on loan. The total value of securities on loan as of September 30, 2015, was $14,914,125 or 3.53% 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).

(b) Non-income producing security.

(c) This security is fair valued in good faith in accordance with procedures approved by the Board of Trustees. At September 30, 2015, these securities amounted to a value of $3,686,661 or 0.87% of net assets.

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

(e) Maturity value of $20,728,078. Collateralized by U.S. Government Agency obligations with a rate of 1.500%, maturity date of 1/31/22, and an aggregate market value, including accrued interest, of $21,146,400.

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

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

54

MML Mid Cap Value Fund – Portfolio of Investments

September 30, 2015 (Unaudited)

	Number of Shares		Value
EQUITIES — 98.7%
COMMON STOCK — 98.7%
Basic Materials — 1.6%
Chemicals — 0.7%
The Mosaic Co.		101,054	$	3,143,790
Iron & Steel — 0.9%
Nucor Corp.		104,853		3,937,230
				7,081,020
Communications — 2.6%
Media — 0.7%
Markit, Ltd. (a)		116,206		3,369,974
Telecommunications — 1.9%
CenturyLink, Inc.		205,457		5,161,080
Harris Corp.		21,674		1,585,453
Level 3 Communications, Inc. (a)		41,874		1,829,475
				8,576,008
				11,945,982
Consumer, Cyclical — 7.9%
Apparel — 0.8%
Ralph Lauren Corp.		30,675		3,624,558
Auto Manufacturers — 1.1%
Honda Motor Co. Ltd. Sponsored ADR (Japan)		88,274		2,639,392
Oshkosh Corp.		60,687		2,204,759
				4,844,151
Home Builders — 1.7%
PulteGroup, Inc.		157,168		2,965,760
Thor Industries, Inc.		48,590		2,516,962
Toll Brothers, Inc. (a)		56,445		1,932,677
				7,415,399
Leisure Time — 0.5%
Carnival Corp.		47,596		2,365,521
Retail — 2.9%
Advance Auto Parts, Inc.		20,935		3,967,811
Bed Bath & Beyond, Inc. (a)		39,357		2,244,136
CST Brands, Inc.		101,209		3,406,695
Lowe’s Cos., Inc.		23,661		1,630,716
Target Corp.		25,166		1,979,558
				13,228,916
Toys, Games & Hobbies — 0.9%
Mattel, Inc.		197,816		4,166,005
				35,644,550
Consumer, Non-cyclical — 18.1%
Commercial Services — 1.9%
The ADT Corp.		139,855		4,181,665
Corrections Corporation of America		148,934		4,399,510
				8,581,175

	Number of Shares		Value
Foods — 9.1%
Campbell Soup Co.		36,574	$	1,853,570
ConAgra Foods, Inc.		175,523		7,110,437
Danone SA		18,784		1,187,975
General Mills, Inc.		61,495		3,451,714
The J.M. Smucker Co.		47,793		5,452,703
Kellogg Co.		79,972		5,322,137
Mondelez International, Inc. Class A		104,988		4,395,848
Sysco Corp.		318,563		12,414,400
				41,188,784
Health Care – Products — 3.5%
Becton, Dickinson & Co.		18,803		2,494,406
Boston Scientific Corp. (a)		284,066		4,661,523
Zimmer Biomet Holdings, Inc.		88,698		8,331,403
				15,487,332
Health Care – Services — 3.0%
LifePoint Health, Inc. (a)		115,289		8,173,990
Quest Diagnostics, Inc.		88,143		5,418,150
				13,592,140
Pharmaceuticals — 0.6%
Cardinal Health, Inc.		17,571		1,349,804
Express Scripts Holding Co. (a)		16,719		1,353,571
				2,703,375
				81,552,806
Energy — 11.6%
Oil & Gas — 9.3%
Anadarko Petroleum Corp.		39,648		2,394,343
Cimarex Energy Co.		45,421		4,654,744
Devon Energy Corp.		114,966		4,264,089
EQT Corp.		83,918		5,435,369
Helmerich & Payne, Inc.		74,808		3,535,426
Imperial Oil Ltd.		293,698		9,305,022
Noble Energy, Inc.		205,364		6,197,885
Occidental Petroleum Corp.		95,329		6,306,013
				42,092,891
Oil & Gas Services — 2.3%
Cameron International Corp. (a)		121,984		7,480,059
FMC Technologies, Inc. (a)		93,608		2,901,848
				10,381,907
				52,474,798
Financial — 25.5%
Banks — 11.3%
Bank of Hawaii Corp.		47,787		3,033,997
BB&T Corp.		87,881		3,128,564
BOK Financial Corp.		39,884		2,580,894
Comerica, Inc.		61,298		2,519,348
Commerce Bancshares, Inc.		113,115		5,153,519
Cullen/Frost Bankers, Inc.		37,232		2,367,211

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

55

MML Mid Cap Value Fund – Portfolio of Investments (Continued)

	Number of Shares		Value
M&T Bank Corp.		42,672	$	5,203,850
Northern Trust Corp.		183,116		12,481,186
PNC Financial Services Group, Inc.		44,289		3,950,579
State Street Corp.		45,701		3,071,564
SunTrust Banks, Inc.		78,080		2,985,779
Westamerica Bancorp.		103,495		4,599,318
				51,075,809
Diversified Financial — 2.1%
Franklin Resources, Inc.		80,938		3,015,750
LPL Financial Holdings, Inc.		85,703		3,408,408
T. Rowe Price Group, Inc.		40,508		2,815,306
				9,239,464
Insurance — 7.6%
ACE Ltd.		54,611		5,646,777
Aflac, Inc.		37,729		2,193,187
The Allstate Corp.		27,116		1,579,236
Brown & Brown, Inc.		101,553		3,145,097
The Chubb Corp.		22,366		2,743,190
HCC Insurance Holdings, Inc.		14,803		1,146,788
MetLife, Inc.		45,713		2,155,368
ProAssurance Corp.		51,733		2,538,538
Reinsurance Group of America, Inc.		52,407		4,747,550
Torchmark Corp.		35,231		1,987,028
The Travelers Cos., Inc.		21,582		2,148,057
Unum Group		128,235		4,113,779
				34,144,595
Real Estate Investment Trusts (REITS) — 3.8%
Boston Properties, Inc.		14,239		1,685,898
Empire State Realty Trust, Inc. Class A		103,058		1,755,078
Host Hotels & Resorts, Inc.		129,240		2,043,284
Piedmont Office Realty Trust, Inc. Class A		271,005		4,848,279
Weyerhaeuser Co.		255,726		6,991,549
				17,324,088
Savings & Loans — 0.7%
Capitol Federal Financial, Inc.		256,492		3,108,683
				114,892,639
Industrial — 13.9%
Aerospace & Defense — 0.6%
L-3 Communications Holdings, Inc.		24,610		2,572,237
Electrical Components & Equipment — 1.5%
Emerson Electric Co.		147,606		6,519,757
Electronics — 4.5%
Keysight Technologies, Inc. (a)		155,230		4,787,293
Koninklijke Philips Electronics NV		246,061		5,802,058
TE Connectivity Ltd.		72,032		4,313,997
Tyco International PLC		164,274		5,496,608
				20,399,956

	Number of Shares		Value
Environmental Controls — 3.7%
Clean Harbors, Inc. (a)		76,534	$	3,365,200
Republic Services, Inc.		326,971		13,471,205
				16,836,405
Manufacturing — 1.3%
Parker Hannifin Corp.		18,758		1,825,153
Pentair PLC		32,867		1,677,532
Textron, Inc.		67,721		2,549,019
				6,051,704
Packaging & Containers — 1.3%
Bemis Co., Inc.		52,246		2,067,374
Sonoco Products Co.		97,327		3,673,121
				5,740,495
Transportation — 1.0%
Heartland Express, Inc.		228,844		4,563,149
				62,683,703
Technology — 7.0%
Computers — 1.9%
SanDisk Corp.		85,458		4,642,933
Western Digital Corp.		51,087		4,058,351
				8,701,284
Semiconductors — 5.1%
Applied Materials, Inc.		387,397		5,690,862
Lam Research Corp.		76,503		4,997,941
Maxim Integrated Products, Inc.		120,213		4,015,114
Microchip Technology, Inc.		104,127		4,486,832
Teradyne, Inc.		208,162		3,748,998
				22,939,747
				31,641,031
Utilities — 10.5%
Electric — 8.3%
Ameren Corp.		59,683		2,522,800
Consolidated Edison, Inc.		46,604		3,115,477
Edison International		111,266		7,017,547
Great Plains Energy, Inc.		155,732		4,207,879
NorthWestern Corp.		44,223		2,380,524
OGE Energy Corp.		65,292		1,786,389
PG&E Corp.		78,124		4,124,947
Westar Energy, Inc.		159,252		6,121,647
Xcel Energy, Inc.		170,107		6,023,489
				37,300,699
Gas — 2.2%
Atmos Energy Corp.		75,526		4,394,103
The Laclede Group, Inc.		105,644		5,760,767
				10,154,870
				47,455,569
TOTAL COMMON STOCK (Cost $455,745,981)				445,372,098

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

56

MML Mid Cap Value Fund – Portfolio of Investments (Continued)

			Value
TOTAL EQUITIES (Cost $455,745,981)			$	445,372,098
TOTAL LONG-TERM INVESTMENTS (Cost $455,745,981)				445,372,098
	Principal Amount
SHORT-TERM INVESTMENTS — 1.6%
Repurchase Agreement — 1.6%
State Street Bank & Trust Co. Repurchase Agreement, dated 9/30/15, 0.010%, due 10/01/15 (b)	$	7,408,962		7,408,962
TOTAL SHORT-TERM INVESTMENTS (Cost $7,408,962)				7,408,962
TOTAL INVESTMENTS — 100.3% (Cost $463,154,943) (c)				452,781,060
Other Assets/(Liabilities) — (0.3)%				(1,517,302	)
NET ASSETS — 100.0%			$	451,263,758

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

ADR American Depositary Receipt

(a) Non-income producing security.

(b) Maturity value of $7,408,964. Collateralized by U.S. Government Agency obligations with a rate of 1.500%, maturity date of 1/31/22, and an aggregate market value, including accrued interest, of $7,558,650.

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

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

57

MML Moderate Allocation Fund – Portfolio of Investments

September 30, 2015 (Unaudited)

	Number of Shares		Value
MUTUAL FUNDS — 100.1%
Equity Funds — 60.3%
MML Blue Chip Growth Fund, Initial Class (a)		8,247,844	$	118,521,518
MML Equity Income Fund, Initial Class (a)		7,791,682		83,137,252
MML Focused Equity Fund, Class II (a)		5,275,003		60,609,783
MML Foreign Fund, Initial Class (a)		7,655,909		71,276,513
MML Fundamental Growth Fund, Class II (a)		6,449,638		74,880,297
MML Fundamental Value Fund, Class II (a)		6,847,764		92,307,857
MML Global Fund, Class I (a)		8,032,725		90,769,797
MML Income & Growth Fund, Initial Class (a)		6,989,974		73,884,025
MML International Equity Fund, Class II (a)		8,191,026		69,377,990
MML Large Cap Growth Fund, Initial Class (a)		6,664,650		72,911,272
MML Mid Cap Growth Fund, Initial Class (a)		5,192,345		76,379,398
MML Mid Cap Value Fund, Initial Class (a)		8,125,568		83,612,096
MML Small Cap Growth Equity Fund, Initial Class (a)		1,509,873		20,103,937
MML Small Company Value Fund, Class II (a)		2,624,026		38,153,341
MML Small/Mid Cap Value Fund, Initial Class (a)		1,733,077		19,323,808
MML Strategic Emerging Markets Fund, Class II (a)		4,912,206		38,315,208
Oppenheimer Discovery Mid Cap Growth Fund/VA, Non-Service Shares (a) (b)		370,066		27,307,178
Oppenheimer Global Fund/VA, Non-Service Shares (a)		1,361,235		49,031,677
Oppenheimer Global Multi-Alternatives Fund/VA, Non-Service Shares (a)		17,793,960		174,202,865
Oppenheimer International Growth Fund/VA, Non-Service Shares (a)		16,421,330		34,320,579
				1,368,426,391
Fixed Income Funds — 39.8%
MML Dynamic Bond Fund, Class II (a)		19,630,808		194,541,306
MML High Yield Fund, Class II (a)		6,431,351		62,062,540
MML Inflation-Protected and Income Fund, Initial Class (a)		6,928,752		69,911,112

	Number of Shares		Value
MML Managed Bond Fund, Initial Class (a)		27,031,569	$	340,605,685
MML Short-Duration Bond Fund, Class II (a)		7,520,136		74,449,343
MML Total Return Bond Fund, Class II (a)		15,686,564		160,473,549
				902,043,535
TOTAL MUTUAL FUNDS (Cost $2,375,495,481)				2,270,469,926
TOTAL LONG-TERM INVESTMENTS (Cost $2,375,495,481)				2,270,469,926
TOTAL INVESTMENTS — 100.1% (Cost $2,375,495,481) (c)				2,270,469,926
Other Assets/(Liabilities) — (0.1)%				(1,682,123	)
NET ASSETS — 100.0%			$	2,268,787,803

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) Non-income producing security.

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

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

58

MML Small Cap Growth Equity Fund – Portfolio of Investments

September 30, 2015 (Unaudited)

	Number of Shares		Value
EQUITIES — 94.3%
COMMON STOCK — 93.0%
Basic Materials — 1.4%
Chemicals — 0.8%
Methanex Corp. (a)		13,370	$	443,349
Minerals Technologies, Inc.		15,335		738,535
Platform Specialty Products Corp. (b)		38,848		491,427
Forest Products & Paper — 0.6%
KapStone Paper and Packaging Corp.		73,914		1,220,320
				2,893,631
Communications — 4.7%
Internet — 1.9%
Comscore, Inc. (b)		8,987		414,750
Dropbox, Inc. (c)		10,469		139,552
GoDaddy, Inc. Class A (a) (b)		5,600		141,176
GrubHub, Inc. (b)		44,200		1,075,828
Q2 Holdings, Inc. (b)		37,600		929,472
SPS Commerce, Inc. (b)		9,600		651,744
Zillow Group, Inc. Class A (a) (b)		6,791		195,105
Zillow Group, Inc. Class C (a) (b)		13,582		366,714
				3,914,341
Media — 1.0%
FactSet Research Systems, Inc.		7,862		1,256,426
The New York Times Co. Class A		64,050		756,431
				2,012,857
Telecommunications — 1.8%
Arista Networks, Inc. (a) (b)		9,659		591,034
Ciena Corp. (b)		60,339		1,250,224
DigitalGlobe, Inc. (b)		13,267		252,338
Ruckus Wireless, Inc. (b)		11,910		141,491
Vonage Holdings Corp. (b)		248,380		1,460,475
				3,695,562
				9,622,760
Consumer, Cyclical — 15.7%
Apparel — 1.5%
Carter’s, Inc.		17,043		1,544,778
Crocs, Inc. (b)		30,008		387,853
Skechers U.S.A., Inc. Class A (b)		2,590		347,267
Steven Madden Ltd. (b)		23,671		866,832
				3,146,730
Automotive & Parts — 0.4%
Tenneco, Inc. (b)		18,740		838,990
Distribution & Wholesale — 0.2%
HD Supply Holdings, Inc. (b)		12,365		353,886
Entertainment — 1.5%
Churchill Downs, Inc.		5,110		683,769
Cinemark Holdings, Inc.		23,000		747,270

	Number of Shares		Value
DreamWorks Animation SKG, Inc. Class A (a) (b)		46,160	$	805,492
National CineMedia, Inc.		58,770		788,694
				3,025,225
Home Builders — 0.4%
Standard Pacific Corp. (b)		99,375		795,000
Home Furnishing — 0.4%
La-Z-Boy, Inc.		36,100		958,816
Housewares — 1.1%
The Toro Co.		33,300		2,348,982
Leisure Time — 1.0%
ClubCorp Holdings, Inc.		26,389		566,308
Diamond Resorts International, Inc. (b)		45,381		1,061,462
Lindblad Expeditions Holdings, Inc. (b)		39,600		386,892
				2,014,662
Retail — 8.8%
Bloomin’ Brands, Inc.		38,900		707,202
Boot Barn Holdings, Inc. (b)		60,070		1,107,090
Buffalo Wild Wings, Inc. (b)		1,723		333,280
Burlington Stores, Inc. (b)		26,600		1,357,664
The Cheesecake Factory, Inc.		18,885		1,019,034
Chico’s FAS, Inc.		55,800		877,734
CST Brands, Inc.		10,989		369,890
Destination Maternity Corp.		40,340		371,935
DSW, Inc. Class A		31,100		787,141
Five Below, Inc. (b)		66,900		2,246,502
Freshpet, Inc. (a) (b)		18,776		197,148
Haverty Furniture Cos., Inc.		41,900		983,812
HSN, Inc.		24,041		1,376,107
Jack in the Box, Inc.		11,028		849,597
Kate Spade & Co. (b)		111,961		2,139,574
Krispy Kreme Doughnuts, Inc. (b)		76,700		1,122,121
Panera Bread Co. Class A (b)		4,429		856,613
Pier 1 Imports, Inc. (a)		76,900		530,610
Texas Roadhouse, Inc.		20,499		762,563
				17,995,617
Textiles — 0.4%
Tumi Holdings, Inc. (b)		46,485		819,066
				32,296,974
Consumer, Non-cyclical — 21.5%
Biotechnology — 1.0%
BioCryst Pharmaceuticals, Inc. (b)		33,946		386,984
Five Prime Therapeutics, Inc. (b)		10,791		166,074
Ironwood Pharmaceuticals, Inc. (b)		21,144		220,321
Novavax, Inc. (b)		51,691		365,455
PTC Therapeutics, Inc. (b)		10,484		279,923
Ultragenyx Pharmaceutical, Inc. (b)		6,007		578,534
				1,997,291

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

59

MML Small Cap Growth Equity Fund – Portfolio of Investments (Continued)

	Number of Shares		Value
Commercial Services — 5.6%
The Advisory Board Co. (b)		18,588	$	846,498
Cardtronics, Inc. (b)		26,650		871,455
Convergys Corp.		37,565		868,127
CoStar Group, Inc. (b)		7,303		1,263,857
ExamWorks Group, Inc. (b)		77,600		2,269,024
Healthcare Services Group, Inc.		34,800		1,172,760
Heartland Payment Systems, Inc.		9,153		576,731
Rent-A-Center, Inc.		12,955		314,159
Team Health Holdings, Inc. (b)		10,717		579,039
TriNet Group, Inc. (b)		30,328		509,510
WEX, Inc. (b)		14,499		1,259,093
WNS Holdings Ltd. Sponsored ADR (India) (b)		34,326		959,412
				11,489,665
Foods — 1.0%
Greencore Group PLC		221,658		917,874
SunOpta, Inc. (b)		91,625		445,298
The Hain Celestial Group, Inc. (b)		15,000		774,000
				2,137,172
Health Care – Products — 7.8%
AtriCure, Inc. (b)		43,110		944,540
Bio-Techne Corp.		9,280		858,029
Cardiovascular Systems, Inc. (b)		12,862		203,734
Cepheid, Inc. (b)		28,031		1,267,001
ConforMIS, Inc. (a) (b)		5,100		92,106
Cyberonics, Inc. (b)		6,400		388,992
Dexcom, Inc. (b)		26,555		2,280,012
Endologix, Inc. (b)		107,521		1,318,208
Globus Medical, Inc. Class A (b)		41,495		857,287
HeartWare International, Inc. (a) (b)		9,524		498,200
Insulet Corp. (b)		72,975		1,890,782
Intersect ENT, Inc. (b)		48,507		1,135,064
LDR Holding Corp. (b)		88,334		3,050,173
Novadaq Technologies, Inc. (a) (b)		76,000		792,680
Quidel Corp. (b)		20,100		379,488
				15,956,296
Health Care – Services — 3.7%
Acadia Healthcare Co., Inc. (b)		37,450		2,481,811
Adeptus Health, Inc. (a) (b)		4,468		360,836
Envision Healthcare Holdings, Inc. (b)		20,550		756,035
Kindred Healthcare, Inc.		52,350		824,512
LifePoint Health, Inc. (b)		18,391		1,303,922
Surgical Care Affiliates, Inc. (b)		26,370		862,035
WellCare Health Plans, Inc. (b)		11,850		1,021,233
				7,610,384
Pharmaceuticals — 2.1%
Achillion Pharmaceuticals, Inc. (a) (b)		29,936		206,858
Aerie Pharmaceuticals, Inc. (b)		14,029		248,874

	Number of Shares		Value
Agios Pharmaceuticals, Inc. (a) (b)		4,649	$	328,173
Anacor Pharmaceuticals, Inc. (b)		6,068		714,264
Aratana Therapeutics, Inc. (b)		18,211		154,065
Flexion Therapeutics, Inc. (b)		13,531		201,071
Galapagos NV (b)		6,165		250,977
Otonomy, Inc. (b)		11,162		198,795
Portola Pharmaceuticals, Inc. (b)		12,951		551,972
Relypsa, Inc. (b)		15,199		281,333
TESARO, Inc. (a) (b)		17,810		714,181
Tetraphase Pharmaceuticals, Inc. (a) (b)		13,869		103,463
Zafgen, Inc. (a) (b)		10,820		345,699
				4,299,725
Textiles — 0.3%
Samsonite International SA		159,170		521,405
				44,011,938
Diversified — 0.7%
Holding Company – Diversified — 0.7%
FCB Financial Holdings, Inc. (b)		26,160		853,339
Nomad Foods Ltd. (b)		34,994		551,231
				1,404,570
				1,404,570
Energy — 3.1%
Energy – Alternate Sources — 1.4%
First Solar, Inc. (b)		18,360		784,890
Headwaters, Inc. (b)		68,770		1,292,876
Pattern Energy Group, Inc. (a)		40,600		775,054
				2,852,820
Oil & Gas — 1.3%
Diamondback Energy, Inc. (b)		16,045		1,036,507
Patterson-UTI Energy, Inc.		37,540		493,276
RSP Permian, Inc. (b)		57,970		1,173,892
				2,703,675
Oil & Gas Services — 0.4%
Dril-Quip, Inc. (b)		4,500		261,990
Flotek Industries, Inc. (a) (b)		35,200		587,840
				849,830
				6,406,325
Financial — 14.2%
Banks — 3.0%
Associated Banc-Corp.		91,029		1,635,791
ConnectOne Bancorp, Inc.		36,600		706,380
PacWest Bancorp		15,814		676,997
PrivateBancorp, Inc.		22,160		849,393
South State Corp.		13,460		1,034,670
Texas Capital Bancshares, Inc. (b)		15,900		833,478
United Community Banks, Inc.		23,976		490,070
				6,226,779
Diversified Financial — 3.5%
Financial Engines, Inc. (a)		20,249		596,738

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

60

MML Small Cap Growth Equity Fund – Portfolio of Investments (Continued)

	Number of Shares		Value
Hannon Armstrong Sustainable Infrastructure Capital, Inc. (a)		85,110	$	1,465,594
MarketAxess Holdings, Inc.		11,847		1,100,350
PRA Group, Inc. (a) (b)		54,400		2,878,848
WageWorks, Inc. (b)		9,621		433,715
WisdomTree Investments, Inc. (a)		42,056		678,363
				7,153,608
Insurance — 3.2%
Argo Group International Holdings Ltd.		15,029		850,491
Assurant, Inc.		7,600		600,476
Assured Guaranty Ltd.		57,148		1,428,700
eHealth, Inc. (b)		33,180		425,036
First American Financial Corp.		21,947		857,469
Horace Mann Educators Corp.		25,260		839,137
MGIC Investment Corp. (b)		66,700		617,642
Stewart Information Services Corp.		24,260		992,477
				6,611,428
Investment Companies — 0.3%
Solar Capital Ltd.		36,305		574,345
Real Estate — 1.5%
HFF, Inc.		40,198		1,357,084
Kennedy-Wilson Holdings, Inc.		71,999		1,596,218
				2,953,302
Real Estate Investment Trusts (REITS) — 2.1%
First Industrial Realty Trust, Inc.		34,200		716,490
MFA Financial, Inc.		117,635		801,094
Pebblebrook Hotel Trust		27,637		979,732
Redwood Trust, Inc.		63,455		878,217
Sovran Self Storage, Inc.		10,200		961,860
				4,337,393
Savings & Loans — 0.6%
EverBank Financial Corp.		27,600		532,680
Sterling Bancorp		43,400		645,358
				1,178,038
				29,034,893
Industrial — 15.8%
Aerospace & Defense — 1.4%
Astronics Corp. (b)		6,812		275,409
Curtiss-Wright Corp.		13,000		811,460
HEICO Corp. Class A		18,000		817,380
Teledyne Technologies, Inc. (b)		9,805		885,392
				2,789,641
Building Materials — 2.2%
Apogee Enterprises, Inc.		13,700		611,705
Armstrong World Industries, Inc. (b)		12,850		613,459
Boise Cascade Co. (b)		29,700		749,034
Lennox International, Inc.		5,685		644,281
Masonite International Corp. (b)		12,623		764,701

	Number of Shares		Value
Trex Co., Inc. (b)		33,163	$	1,105,323
				4,488,503
Electrical Components & Equipment — 1.5%
Acuity Brands, Inc.		8,503		1,492,957
Generac Holdings, Inc. (a) (b)		15,170		456,465
SunPower Corp. (a) (b)		58,849		1,179,334
				3,128,756
Electronics — 2.4%
Imax Corp. (a) (b)		56,876		1,921,840
Rogers Corp. (b)		12,915		686,820
Watts Water Technologies, Inc. Class A		23,522		1,242,432
Woodward, Inc.		28,100		1,143,670
				4,994,762
Environmental Controls — 0.5%
Clean Harbors, Inc. (b)		20,830		915,895
Machinery – Diversified — 2.8%
Altra Industrial Motion Corp.		14,082		325,576
Cognex Corp.		58,200		2,000,334
The Middleby Corp. (b)		19,700		2,072,243
Tennant Co.		24,600		1,382,028
				5,780,181
Manufacturing — 0.5%
John Bean Technologies Corp.		26,345		1,007,696
Metal Fabricate & Hardware — 0.6%
Advanced Drainage Systems, Inc. (a)		42,625		1,233,141
Miscellaneous – Manufacturing — 0.6%
Hexcel Corp.		27,600		1,238,136
Packaging & Containers — 0.9%
Graphic Packaging Holding Co.		147,385		1,885,054
Transportation — 1.5%
Hub Group, Inc. Class A (b)		23,210		845,076
Landstar System, Inc.		13,529		858,686
Swift Transportation Co. (b)		73,860		1,109,377
XPO Logistics, Inc. (a) (b)		12,846		306,120
				3,119,259
Trucking & Leasing — 0.9%
Aircastle Ltd.		48,190		993,196
GATX Corp.		19,420		857,393
				1,850,589
				32,431,613
Technology — 15.3%
Computers — 3.6%
Cadence Design Systems, Inc. (b)		35,630		736,829
FleetMatics Group PLC (a) (b)		11,426		560,902
Manhattan Associates, Inc. (b)		18,800		1,171,240
MAXIMUS, Inc.		8,327		495,956
Nimble Storage, Inc. (a) (b)		14,232		343,276
Stratasys Ltd. (a) (b)		14,900		394,701

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

61

MML Small Cap Growth Equity Fund – Portfolio of Investments (Continued)

	Number of Shares		Value
Syntel, Inc. (b)		18,200	$	824,642
Virtusa Corp. (b)		55,156		2,830,054
				7,357,600
Semiconductors — 1.8%
Entegris, Inc. (b)		88,700		1,169,953
Mellanox Technologies Ltd. (b)		20,070		758,445
Microsemi Corp. (b)		16,585		544,320
Monolithic Power Systems, Inc.		9,150		468,480
Nanometrics, Inc. (b)		3,415		41,458
ON Semiconductor Corp. (b)		89,075		837,305
				3,819,961
Software — 9.9%
Allscripts Healthcare Solutions, Inc. (b)		82,760		1,026,224
Demandware, Inc. (b)		21,098		1,090,345
Fair Isaac Corp.		7,795		658,678
Guidewire Software, Inc. (b)		30,468		1,602,007
HubSpot, Inc. (b)		51,100		2,369,507
Imperva, Inc. (b)		6,530		427,584
Monotype Imaging Holdings, Inc.		43,200		942,624
Paycom Software, Inc. (b)		19,942		716,117
Proofpoint, Inc. (b)		16,800		1,013,376
Telogis (c)		80,369		155,112
TiVo, Inc. (b)		94,070		814,646
Tyler Technologies, Inc. (b)		21,158		3,159,101
The Ultimate Software Group, Inc. (b)		10,300		1,843,803
Veeva Systems, Inc. Class A (b)		135,520		3,172,523
Verint Systems, Inc. (b)		28,550		1,231,933
				20,223,580
				31,401,141
Utilities — 0.6%
Electric — 0.1%
8Point3 Energy Partners LP (b)		24,071		255,393
Gas — 0.5%
Southwest Gas Corp.		15,580		908,626
				1,164,019
TOTAL COMMON STOCK (Cost $191,073,541)				190,667,864
PREFERRED STOCK — 1.3%
Communications — 0.3%
Internet — 0.3%
Veracode, Inc. (b) (c)		10,688		283,125
Zuora, Inc. . Series F (b) (c)		69,937		265,712
				548,837
Consumer, Cyclical — 0.2%
Auto Manufacturers — 0.2%
Draftkings Series D (b) (c)		14,868		113,969

	Number of Shares		Value
Draftkings, Inc. Series D 1 (b) (c)		28,744	$	220,335
The Honest Co. (b) (c)		4,027		184,255
				518,559
Technology — 0.8%
Software — 0.8%
Cloudera, Inc. Series F (b) (c)		12,068		348,524
Docusign, Inc. Series B (b) (c)		456		8,463
Docusign, Inc. Series B 1 (b) (c)		136		2,524
Docusign, Inc. Series D (b) (c)		327		6,069
Docusign, Inc. Series E (b) (c)		8,460		157,018
Docusign, Inc. Series F (b) (c)		1,224		22,717
Marklogic Corp. Series F (b) (c)		22,966		269,851
NUTANIX, Inc. Series E (b) (c)		14,135		282,700
Telogis (b) (c)		109,450		485,958
				1,583,824
TOTAL PREFERRED STOCK (Cost $1,967,004)				2,651,220
TOTAL EQUITIES (Cost $193,040,545)				193,319,084
MUTUAL FUNDS — 9.5%
Diversified Financial — 9.5%
iShares Russell 2000 Index Fund (a)		7,611		831,121
State Street Navigator Securities Lending Prime Portfolio (d)		18,603,756		18,603,756
				19,434,877
TOTAL MUTUAL FUNDS (Cost $19,479,100)				19,434,877
TOTAL LONG-TERM INVESTMENTS (Cost $212,519,645)				212,753,961
	Principal Amount
SHORT-TERM INVESTMENTS — 2.5%
Repurchase Agreement — 2.5%
State Street Bank & Trust Co. Repurchase Agreement, dated 9/30/15, 0.010%, due 10/01/15 (e)	$	5,128,412		5,128,412
Time Deposits — 0.0%
Euro Time Deposit 0.010% 10/01/15		3,639		3,639
TOTAL SHORT-TERM INVESTMENTS (Cost $5,132,051)				5,132,051

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

62

MML Small Cap Growth Equity Fund – Portfolio of Investments (Continued)

	Value
TOTAL INVESTMENTS — 106.3% (Cost $217,651,696) (f)	$	217,886,012
Other Assets/(Liabilities) — (6.3)%		(12,992,072	)
NET ASSETS — 100.0%	$	204,893,940

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

ADR American Depositary Receipt

(a) Denotes all or a portion of security on loan. The total value of securities on loan as of September 30, 2015, was $18,138,915 or 8.85% 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).

(b) Non-income producing security.

(c) This security is fair valued in good faith in accordance with procedures approved by the Board of Trustees. At September 30, 2015, these securities amounted to a value of $2,945,884 or 1.44% of net assets.

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

(e) Maturity value of $5,128,413. Collateralized by U.S. Government Agency obligations with a rate of 1.500%, maturity date of 1/31/22, and an aggregate market value, including accrued interest, of $5,242,050.

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

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

63

MML Small Company Value Fund – Portfolio of Investments

September 30, 2015 (Unaudited)

	Number of Shares		Value
EQUITIES — 97.6%
COMMON STOCK — 97.6%
Basic Materials — 5.3%
Chemicals — 2.3%
American Vanguard Corp.		27,600	$	319,056
Innospec, Inc.		22,700		1,055,777
Minerals Technologies, Inc.		16,900		813,904
				2,188,737
Forest Products & Paper — 1.7%
Clearwater Paper Corp. (a)		15,700		741,668
Potlatch Corp.		18,200		523,978
Wausau Paper Corp.		67,100		429,440
				1,695,086
Iron & Steel — 0.9%
Carpenter Technology Corp.		18,100		538,837
Reliance Steel & Aluminum Co.		6,400		345,664
				884,501
Mining — 0.4%
Stillwater Mining Co. (a)		34,400		355,352
				5,123,676
Communications — 2.8%
Internet — 1.0%
New Media Investment Group, Inc.		39,200		606,032
Safeguard Scientifics, Inc. (a)		24,800		385,392
				991,424
Media — 0.9%
Cable One, Inc. (a)		950		398,449
Scholastic Corp.		11,200		436,352
				834,801
Telecommunications — 0.9%
Ixia (a)		50,300		728,847
Sonus Networks, Inc. (a)		22,680		129,730
				858,577
				2,684,802
Consumer, Cyclical — 10.1%
Apparel — 0.9%
Crocs, Inc. (a)		20,900		270,133
Steven Madden Ltd. (a)		16,300		596,906
				867,039
Automotive & Parts — 0.8%
Dorman Products, Inc. (a) (b)		15,900		809,151
Distribution & Wholesale — 2.0%
Beacon Roofing Supply, Inc. (a)		28,600		929,214
Pool Corp.		13,500		976,050
				1,905,264

	Number of Shares		Value
Home Builders — 1.1%
Cavco Industries, Inc. (a)		7,600	$	517,484
Meritage Home Corp. (a)		14,700		536,844
				1,054,328
Home Furnishing — 0.6%
Ethan Allen Interiors, Inc. (b)		22,100		583,661
Leisure Time — 0.3%
Interval Leisure Group, Inc.		14,100		258,876
Retail — 2.7%
Fred’s, Inc. Class A		29,100		344,835
Party City Holdco, Inc. (a)		14,400		229,968
Pier 1 Imports, Inc. (b)		66,300		457,470
PriceSmart, Inc.		10,000		773,400
Red Robin Gourmet Burgers, Inc. (a)		5,000		378,700
Sportsman’s Warehouse Holdings, Inc. (a) (b)		38,400		473,088
				2,657,461
Textiles — 1.7%
Culp, Inc.		21,200		679,884
G&K Services, Inc. Class A		14,950		995,969
				1,675,853
				9,811,633
Consumer, Non-cyclical — 14.0%
Agriculture — 0.5%
Vector Group Ltd. (b)		19,530		441,573
Commercial Services — 5.3%
Aaron’s, Inc.		39,900		1,440,789
American Public Education, Inc. (a)		16,200		379,890
Capella Education Co.		5,400		267,408
Electro Rent Corp.		43,700		453,606
FTI Consulting, Inc. (a)		14,500		601,895
Hillenbrand, Inc.		13,130		341,511
McGrath RentCorp		35,600		950,164
Navigant Consulting, Inc. (a)		43,000		684,130
				5,119,393
Foods — 1.5%
Pinnacle Foods, Inc.		12,100		506,748
Post Holdings, Inc. (a)		7,600		449,160
SpartanNash Co.		20,200		522,170
				1,478,078
Health Care – Products — 3.8%
Atrion Corp.		2,630		986,145
Halyard Health, Inc. (a)		24,200		688,248
Quidel Corp. (a)		30,500		575,840
West Pharmaceutical Services, Inc.		27,300		1,477,476
				3,727,709
Health Care – Services — 2.4%
The Ensign Group, Inc.		5,300		225,939

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

64

MML Small Company Value Fund – Portfolio of Investments (Continued)

	Number of Shares		Value
National Healthcare Corp.		12,200	$	742,858
Select Medical Holdings Corp.		34,500		372,255
Triple-S Management Corp. Class B (a)		18,400		327,704
WellCare Health Plans, Inc. (a)		7,400		637,732
				2,306,488
Household Products — 0.5%
CSS Industries, Inc.		18,300		482,022
				13,555,263
Diversified — 0.7%
Holding Company – Diversified — 0.7%
National Bank Holdings Corp. Class A		33,700		691,861
Energy — 3.7%
Oil & Gas — 2.7%
Atwood Oceanics, Inc. (b)		20,700		306,567
Clayton Williams Energy, Inc. (a) (b)		12,100		469,601
Matador Resources Co. (a)		46,000		954,040
PDC Energy, Inc. (a)		9,100		482,391
WPX Energy, Inc. (a)		53,400		353,508
				2,566,107
Oil & Gas Services — 1.0%
RPC, Inc. (b)		42,500		376,125
Tesco Corp.		31,800		227,052
TETRA Technologies, Inc. (a)		68,200		403,062
				1,006,239
				3,572,346
Financial — 29.6%
Banks — 11.5%
BBCN Bancorp, Inc.		36,800		552,736
Columbia Banking System, Inc.		33,600		1,048,656
East West Bancorp, Inc.		42,926		1,649,217
Glacier Bancorp, Inc.		38,700		1,021,293
Home Bancshares, Inc.		57,675		2,335,838
Popular, Inc.		25,200		761,796
Sandy Spring Bancorp, Inc.		24,350		637,483
Signature Bank (a)		3,550		488,338
SVB Financial Group (a)		12,550		1,450,027
Wintrust Financial Corp.		22,700		1,212,861
				11,158,245
Diversified Financial — 1.0%
Houlihan Lokey, Inc. (a)		5,600		122,080
Janus Capital Group, Inc. (b)		30,700		417,520
Waddell & Reed Financial, Inc. Class A		12,000		417,240
				956,840
Insurance — 5.8%
Assured Guaranty Ltd.		20,382		509,550
Employers Holdings, Inc.		28,700		639,723

	Number of Shares		Value
National Interstate Corp.		21,800	$	581,624
ProAssurance Corp.		40,700		1,997,149
Radian Group, Inc.		47,700		758,907
RenaissanceRe Holdings Ltd.		2,600		276,432
Safety Insurance Group, Inc.		6,300		341,145
State Auto Financial Corp. Class A		20,200		460,762
Third Point Reinsurance Ltd. (a)		3,300		44,385
				5,609,677
Real Estate — 0.3%
Forestar Real Esate Group, Inc. (a) (b)		22,700		298,505
Real Estate Investment Trusts (REITS) — 8.5%
Acadia Realty Trust		29,100		875,037
American Assets Trust, Inc.		7,200		294,192
American Campus Communities, Inc.		16,700		605,208
Catchmark Timber Trust, Inc. Class A		27,610		283,831
Cedar Realty Trust, Inc.		76,700		476,307
Corporate Office Properties Trust		18,200		382,746
Douglas Emmett, Inc.		10,300		295,816
First Potomac Realty Trust		51,800		569,800
Home Properties, Inc.		5,700		426,075
Kilroy Realty Corp.		11,500		749,340
LaSalle Hotel Properties		26,350		748,076
PS Business Parks, Inc.		7,100		563,598
RLJ Lodging Trust		25,400		641,858
Rouse Properties, Inc.		3,100		48,298
Saul Centers, Inc.		14,100		729,675
Washington Real Estate Investment Trust (b)		22,100		550,953
				8,240,810
Savings & Loans — 2.5%
BankUnited, Inc.		18,200		650,650
Beneficial Bancorp, Inc. (a)		46,600		617,916
United Financial Bancorp, Inc.		46,500		606,825
WSFS Financial Corp.		18,500		532,985
				2,408,376
				28,672,453
Industrial — 19.2%
Aerospace & Defense — 0.9%
Cubic Corp.		8,300		348,102
Kaman Corp.		15,000		537,750
				885,852
Building Materials — 2.3%
Comfort Systems USA, Inc.		21,600		588,816
Drew Industries, Inc.		16,500		901,065
Universal Forest Products, Inc.		12,200		703,696
				2,193,577
Electrical Components & Equipment — 3.2%
Advanced Energy Industries, Inc. (a)		25,600		673,280

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

65

MML Small Company Value Fund – Portfolio of Investments (Continued)

	Number of Shares		Value
Belden, Inc.		16,700	$	779,723
Energizer Holdings, Inc.		12,700		491,617
Littelfuse, Inc.		12,900		1,175,835
				3,120,455
Electronics — 2.9%
Analogic Corp.		6,900		566,076
Badger Meter, Inc.		9,800		568,988
Brady Corp. Class A		21,800		428,588
Fabrinet (a)		25,000		458,250
Methode Electronics, Inc.		17,000		542,300
Newport Corp. (a)		19,500		268,125
				2,832,327
Engineering & Construction — 0.5%
Aegion Corp. (a)		29,400		484,512
Environmental Controls — 0.4%
MSA Safety, Inc.		11,000		439,670
Machinery – Diversified — 0.5%
Nordson Corp.		7,100		446,874
Manufacturing — 2.0%
ESCO Technologies, Inc.		22,300		800,570
Matthews International Corp. Class A		12,400		607,228
Myers Industries, Inc.		37,700		505,180
				1,912,978
Metal Fabricate & Hardware — 1.4%
Circor International, Inc.		12,400		497,488
RBC Bearings, Inc. (a)		6,400		382,272
Sun Hydraulics Corp.		16,800		461,496
				1,341,256
Transportation — 5.1%
Bristow Group, Inc.		9,700		253,752
Genesee & Wyoming, Inc. Class A (a)		20,450		1,208,186
Kirby Corp. (a)		10,250		634,987
Landstar System, Inc.		24,300		1,542,321
Teekay Tankers Ltd. Class A		73,900		509,910
Universal Truckload Services, Inc.		19,900		309,843
UTI Worldwide, Inc. (a)		101,500		465,885
				4,924,884
				18,582,385
Technology — 4.4%
Semiconductors — 2.2%
Brooks Automation, Inc.		39,400		461,374
Cabot Microelectronics Corp. (a)		19,800		767,052
Intersil Corp. Class A		32,200		376,740
Veeco Instruments, Inc. (a)		24,600		504,546
				2,109,712
Software — 2.2%
Progress Software Corp. (a)		23,300		601,839

	Number of Shares		Value
SYNNEX Corp.		17,700	$	1,505,562
				2,107,401
				4,217,113
Utilities — 7.8%
Electric — 3.2%
Cleco Corp.		8,450		449,878
El Paso Electric Co.		24,400		898,408
NorthWestern Corp.		19,200		1,033,536
Portland General Electric Co.		19,800		732,006
				3,113,828
Gas — 4.6%
ONE Gas, Inc.		19,800		897,534
PNM Resources, Inc.		43,500		1,220,175
Southwest Gas Corp.		22,000		1,283,040
Vectren Corp.		14,000		588,140
WGL Holdings, Inc.		8,000		461,360
				4,450,249
				7,564,077
TOTAL COMMON STOCK (Cost $82,618,118)				94,475,609
TOTAL EQUITIES (Cost $82,618,118)				94,475,609
MUTUAL FUNDS — 4.6%
Diversified Financial — 4.6%
State Street Navigator Securities Lending Prime Portfolio (c)		4,468,915		4,468,915
T. Rowe Price Reserve Investment Fund		1,002		1,002
				4,469,917
TOTAL MUTUAL FUNDS (Cost $4,469,917)				4,469,917
TOTAL LONG-TERM INVESTMENTS (Cost $87,088,035)				98,945,526
	Principal Amount
SHORT-TERM INVESTMENTS — 2.2%
Repurchase Agreement — 2.2%
State Street Bank & Trust Co. Repurchase Agreement, dated 9/30/15, 0.010%, due 10/01/15 (d)	$	2,156,247		2,156,247
TOTAL SHORT-TERM INVESTMENTS (Cost $2,156,247)				2,156,247

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

66

MML Small Company Value Fund – Portfolio of Investments (Continued)

		Value
TOTAL INVESTMENTS — 104.4% (Cost $89,244,282) (e)	$	101,101,773
Other Assets/(Liabilities) — (4.4)%		(4,259,564	)
NET ASSETS — 100.0%	$	96,842,209

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 September 30, 2015, was $4,338,828 or 4.48% 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 $2,156,248. Collateralized by U.S. Government Agency obligations with a rate of 1.750%, maturity date of 9/30/22, and an aggregate market value, including accrued interest, of $2,201,713.

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

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

67

MML Small/Mid Cap Value Fund – Portfolio of Investments

September 30, 2015 (Unaudited)

	Number of Shares		Value
EQUITIES — 97.6%
COMMON STOCK — 97.6%
Basic Materials — 2.4%
Chemicals — 1.6%
A. Schulman, Inc.		72,770	$	2,362,841
Huntsman Corp.		97,570		945,453
				3,308,294
Iron & Steel — 0.8%
Steel Dynamics, Inc.		97,709		1,678,641
				4,986,935
Communications — 4.7%
Internet — 1.6%
CDW Corp.		82,000		3,350,520
Media — 1.3%
Cable One, Inc. (a)		3,685		1,545,563
Scholastic Corp.		32,260		1,256,849
				2,802,412
Telecommunications — 1.8%
Finisar Corp. (a)		178,250		1,983,923
Polycom, Inc. (a)		164,850		1,727,628
				3,711,551
				9,864,483
Consumer, Cyclical — 18.3%
Apparel — 1.3%
Crocs, Inc. (a)		210,500		2,720,712
Auto Manufacturers — 1.1%
Oshkosh Corp.		66,230		2,406,136
Automotive & Parts — 3.1%
Dana Holding Corp.		145,253		2,306,617
Lear Corp.		22,846		2,485,188
Tenneco, Inc. (a)		41,931		1,877,251
				6,669,056
Distribution & Wholesale — 1.9%
MRC Global, Inc. (a)		182,640		2,036,436
WESCO International, Inc. (a)		41,580		1,932,223
				3,968,659
Home Builders — 2.0%
Meritage Home Corp. (a)		65,354		2,386,728
PulteGroup, Inc.		100,710		1,900,398
				4,287,126
Retail — 8.9%
Big Lots, Inc.		68,210		3,268,623
Bloomin’ Brands, Inc.		148,830		2,705,729
Caleres, Inc.		58,420		1,783,563
The Children’s Place Retail Store, Inc.		48,284		2,784,538
Dillard’s, Inc. Class A		19,640		1,716,340
GameStop Corp. Class A		56,273		2,319,010

	Number of Shares		Value
Insight Enterprises, Inc. (a)		44,920	$	1,161,182
Office Depot, Inc. (a)		290,897		1,867,559
Pier 1 Imports, Inc.		171,230		1,181,487
				18,788,031
				38,839,720
Consumer, Non-cyclical — 11.1%
Commercial Services — 3.6%
Booz Allen Hamilton Holding Corp.		119,030		3,119,776
Genpact Ltd. (a)		99,757		2,355,263
Quanta Services, Inc. (a)		89,940		2,177,447
				7,652,486
Foods — 2.3%
Dean Foods Co.		88,374		1,459,938
Ingredion, Inc.		39,480		3,446,999
				4,906,937
Health Care – Services — 3.3%
LifePoint Health, Inc. (a)		37,550		2,662,295
Molina Healthcare, Inc. (a)		25,570		1,760,495
WellCare Health Plans, Inc. (a)		30,180		2,600,912
				7,023,702
Household Products — 1.9%
Avery Dennison Corp.		36,375		2,057,734
Helen of Troy Ltd. (a)		21,800		1,946,740
				4,004,474
				23,587,599
Energy — 4.2%
Oil & Gas — 4.2%
Murphy Oil Corp.		79,920		1,934,064
Murphy USA, Inc. (a)		32,990		1,812,801
QEP Resources, Inc.		201,070		2,519,407
SM Energy Co.		79,830		2,557,753
				8,824,025
Financial — 29.2%
Banks — 8.7%
Associated Banc-Corp.		92,907		1,669,539
Comerica, Inc.		72,685		2,987,353
Fulton Financial Corp.		163,970		1,984,037
Huntington Bancshares, Inc.		265,025		2,809,265
Synovus Financial Corp.		68,390		2,024,344
Texas Capital Bancshares, Inc. (a)		36,090		1,891,838
Webster Financial Corp.		54,470		1,940,766
Zions Bancorp		112,935		3,110,230
				18,417,372
Diversified Financial — 1.8%
E*TRADE Financial Corp. (a)		81,324		2,141,261
SLM Corp. (a)		231,501		1,713,107
				3,854,368

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

68

MML Small/Mid Cap Value Fund – Portfolio of Investments (Continued)

	Number of Shares		Value
Insurance — 12.0%
American Financial Group, Inc.		47,440	$	3,269,090
Aspen Insurance Holdings Ltd.		68,610		3,188,307
CNO Financial Group, Inc.		171,570		3,227,232
Essent Group Ltd. (a)		106,920		2,656,962
First American Financial Corp.		82,350		3,217,415
The Hanover Insurance Group, Inc.		39,720		3,086,244
StanCorp Financial Group, Inc.		30,510		3,484,242
Validus Holdings Ltd.		71,430		3,219,350
				25,348,842
Real Estate Investment Trusts (REITS) — 5.8%
DDR Corp.		118,220		1,818,224
Gramercy Property Trust, Inc.		118,790		2,467,268
LTC Properties, Inc.		64,230		2,740,694
Mid-America Apartment Communities, Inc.		25,270		2,068,855
RLJ Lodging Trust		79,210		2,001,637
STAG Industrial, Inc.		68,580		1,248,842
				12,345,520
Savings & Loans — 0.9%
First Niagara Financial Group, Inc.		189,468		1,934,468
				61,900,570
Industrial — 15.8%
Aerospace & Defense — 1.0%
Spirit AeroSystems Holdings, Inc. Class A (a)		43,980		2,125,993
Electrical Components & Equipment — 0.4%
General Cable Corp.		76,601		911,552
Electronics — 5.2%
Avnet, Inc.		79,030		3,373,000
Celestica, Inc. (a)		119,160		1,535,972
Keysight Technologies, Inc. (a)		83,090		2,562,496
TTM Technologies, Inc. (a)		159,846		995,841
Vishay Intertechnology, Inc.		267,906		2,596,009
				11,063,318
Engineering & Construction — 4.1%
AECOM (a)		108,443		2,983,267
EMCOR Group, Inc.		66,290		2,933,332
Granite Construction, Inc.		74,685		2,215,904
Tutor Perini Corp. (a)		34,406		566,323
				8,698,826
Hand & Machine Tools — 1.2%
Regal Beloit Corp.		42,910		2,422,270
Manufacturing — 0.9%
ITT Corp.		56,840		1,900,161
Packaging & Containers — 0.8%
Graphic Packaging Holding Co.		134,160		1,715,907
Transportation — 2.2%
Con-way, Inc.		46,930		2,226,828

	Number of Shares		Value
Ryder System, Inc.		31,990	$	2,368,540
				4,595,368
				33,433,395
Technology — 6.3%
Computers — 3.1%
Amdocs Ltd.		38,988		2,217,637
Brocade Communications Systems, Inc.		144,460		1,499,495
NCR Corp. (a)		124,740		2,837,835
				6,554,967
Semiconductors — 2.4%
Advanced Micro Devices, Inc. (a)		314,070		540,200
Fairchild Semiconductor International, Inc. (a)		225,690		3,168,688
Lam Research Corp.		22,315		1,457,839
				5,166,727
Software — 0.8%
Electronic Arts, Inc. (a)		23,360		1,582,640
				13,304,334
Utilities — 5.6%
Electric — 1.2%
Westar Energy, Inc.		67,270		2,585,859
Gas — 4.4%
PNM Resources, Inc.		110,123		3,088,950
Southwest Gas Corp.		50,570		2,949,242
UGI Corp.		91,235		3,176,803
				9,214,995
				11,800,854
TOTAL COMMON STOCK (Cost $204,490,667)				206,541,915
TOTAL EQUITIES (Cost $204,490,667)				206,541,915
TOTAL LONG-TERM INVESTMENTS (Cost $204,490,667)				206,541,915
	Principal Amount
SHORT-TERM INVESTMENTS — 1.7%
Repurchase Agreement — 1.7%
State Street Bank & Trust Co. Repurchase Agreement, dated 9/30/15, 0.010%, due 10/01/15 (b)	$	3,494,297		3,494,297
TOTAL SHORT-TERM INVESTMENTS (Cost $3,494,297)				3,494,297

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

69

MML Small/Mid Cap Value Fund – Portfolio of Investments (Continued)

		Value
TOTAL INVESTMENTS — 99.3% (Cost $207,984,964) (c)	$	210,036,212
Other Assets/(Liabilities) — 0.7%		1,571,863
NET ASSETS — 100.0%	$	211,608,075

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

(a) Non-income producing security.

(b) Maturity value of $3,494,298. Collateralized by U.S. Government Agency obligations with a rate of 1.500%, maturity date of 1/31/22, and an aggregate market value, including accrued interest, of $3,568,950.

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

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

70

MML Total Return Bond Fund – Portfolio of Investments

September 30, 2015 (Unaudited)

	Principal Amount		Value
BONDS & NOTES — 101.4%
BANK LOANS — 0.3%
Diversified Financial — 0.3%
Delos Finance SARL, Term Loan B 3.500% 3/06/21	$	840,000	$	836,850
TOTAL BANK LOANS (Cost $836,194)				836,850
CORPORATE DEBT — 21.3%
Airlines — 0.8%
Continental Airlines Pass Through Trust 7.250% 5/10/21		1,951,890		2,190,996
Northwest Airlines Pass Through Trust 7.041% 10/01/23		389,293		443,794
				2,634,790
Auto Manufacturers — 0.4%
General Motors Financial Co., Inc. 2.750% 5/15/16		750,000		754,597
General Motors Financial Co., Inc. 4.750% 8/15/17		500,000		518,997
				1,273,594
Banks — 3.2%
Bank of America Corp. FRN 0.617% 6/15/16		2,500,000		2,492,977
CIT Group, Inc. (a) 6.625% 4/01/18		350,000		370,125
Citigroup, Inc. FRN 1.255% 7/25/16		2,800,000		2,808,204
Credit Suisse FRN 0.984% 1/29/18		1,750,000		1,744,718
The Goldman Sachs Group, Inc. 3.750% 5/22/25		600,000		601,245
HBOS PLC (a) 6.750% 5/21/18		1,100,000		1,212,405
JP Morgan Chase & Co. FRN 0.845% 4/25/18		700,000		696,790
Morgan Stanley FRN 1.575% 4/25/18		1,000,000		1,014,078
				10,940,542
Biotechnology — 0.2%
Gilead Sciences, Inc. 3.250% 9/01/22		600,000		604,705
Commercial Services — 0.3%
Catholic Health Initiatives 2.950% 11/01/22		500,000		494,257
Catholic Health Initiatives 4.350% 11/01/42		625,000		580,992
				1,075,249

	Principal Amount		Value
Diversified Financial — 6.7%
Capital One Bank USA NA 2.250% 2/13/19	$	1,000,000	$	996,445
Federal Home Loan Banks STEP 1.250% 6/28/30		2,010,000		2,006,229
Federal Home Loan Mortgage Corp. 1.250% 10/02/19		700,000		697,150
Ford Motor Credit Co. LLC FRN 0.761% 11/08/16		1,400,000		1,391,537
General Electric Capital Corp. 5.875% 1/14/38		850,000		1,060,016
The Goldman Sachs Group, Inc. 3.500% 1/23/25		500,000		492,079
The Goldman Sachs Group, Inc. 5.950% 1/18/18		1,750,000		1,911,889
International Lease Finance Corp. (a) 7.125% 9/01/18		1,000,000		1,099,900
JP Morgan Chase & Co. FRN 0.841% 2/15/17		2,700,000		2,697,899
JP Morgan Chase & Co. 5.875% 6/13/16		3,100,000		3,202,387
Macquarie Bank Ltd. (a) 6.625% 4/07/21		975,000		1,092,865
Merrill Lynch & Co., Inc. 6.875% 4/25/18		4,400,000		4,917,598
Morgan Stanley 2.375% 7/23/19		500,000		500,053
Morgan Stanley 5.450% 1/09/17		1,000,000		1,050,340
				23,116,387
Electric — 2.1%
Duquesne Light Holdings, Inc. (a) 6.400% 9/15/20		1,500,000		1,723,232
Florida Power & Light Co. 3.800% 12/15/42		1,200,000		1,144,801
Jersey Central Power & Light Co. (a) 4.700% 4/01/24		800,000		837,215
Jersey Central Power & Light Co. 6.400% 5/15/36		425,000		478,578
MidAmerican Energy Co. 4.800% 9/15/43		1,400,000		1,532,632
Southern California Edison Co. 3.600% 2/01/45		700,000		643,381
Southwestern Electric Power Co. 6.200% 3/15/40		800,000		976,646
				7,336,485
Foods — 0.2%
Kraft Heinz Foods Co. (a) 1.600% 6/30/17		558,000		558,859

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

71

MML Total Return Bond Fund – Portfolio of Investments (Continued)

	Principal Amount		Value
Gas — 1.0%
CenterPoint Energy Resources Corp. 6.250% 2/01/37	$	1,095,000	$	1,309,675
Florida Gas Transmission Co. LLC (a) 7.900% 5/15/19		1,000,000		1,159,815
Southern California Gas Co. 3.750% 9/15/42		1,000,000		948,410
				3,417,900
Health Care – Services — 0.5%
CHS/Community Health Systems, Inc. 7.125% 7/15/20		340,000		353,600
DaVita HealthCare Partners, Inc. 5.000% 5/01/25		415,000		398,400
HCA, Inc. 5.000% 3/15/24		800,000		802,000
Tenet Healthcare Corp. FRN (a) 3.837% 6/15/20		350,000		347,594
				1,901,594
Insurance — 0.6%
Berkshire Hathaway Finance Corp. 4.300% 5/15/43		500,000		481,661
Berkshire Hathaway Finance Corp. 4.400% 5/15/42		750,000		739,424
Farmers Exchange Capital III VRN (a) 5.454% 10/15/54		970,000		961,908
				2,182,993
Lodging — 0.1%
Hilton Worldwide Finance LLC/Hilton Worldwide Finance Corp. 5.625% 10/15/21		345,000		356,213
Media — 0.5%
CCO Holdings LLC/CCO Holdings Capital Corp. 6.500% 4/30/21		475,000		477,375
CCO Safari II LLC (a) 4.464% 7/23/22		525,000		525,277
DISH DBS Corp. 6.750% 6/01/21		170,000		163,730
Neptune Finco Corp. (a) (b) 6.625% 10/15/25		350,000		351,750
Sirius XM Radio, Inc. (a) 4.250% 5/15/20		165,000		161,288
Univision Communications, Inc. (a) 5.125% 5/15/23		170,000		161,500
				1,840,920
Oil & Gas — 0.3%
Exxon Mobil Corp. 3.567% 3/06/45		400,000		377,335
Noble Energy, Inc. 5.250% 11/15/43		140,000		124,391

	Principal Amount		Value
Shell International Finance BV 4.375% 5/11/45	$	415,000	$	410,374
				912,100
Packaging & Containers — 0.1%
Ardagh Packaging Finance PLC/Ardagh Holdings USA, Inc. FRN (a) 3.337% 12/15/19		200,000		193,000
Reynolds Group Issuer, Inc./Reynolds Group Issuer LLC/Reynolds Group Issuer Lu 5.750% 10/15/20		345,000		348,450
				541,450
Pharmaceuticals — 0.4%
Actavis Funding SCS 4.750% 3/15/45		600,000		544,772
Endo Finance LLC/Endo Ltd./Endo Finco, Inc. (a) 6.000% 7/15/23		200,000		197,500
Valeant Pharmaceuticals International, Inc. (a) 5.500% 3/01/23		800,000		760,000
				1,502,272
Pipelines — 1.2%
Boardwalk Pipelines LLC 5.500% 2/01/17		1,000,000		1,029,285
Energy Transfer Partners LP 3.600% 2/01/23		1,250,000		1,125,328
Energy Transfer Partners LP 5.150% 3/15/45		400,000		312,032
Rockies Express Pipeline LLC (a) 5.625% 4/15/20		700,000		679,000
Sabine Pass Liquefaction LLC, Series WI 5.750% 5/15/24		300,000		267,000
Spectra Energy Partners LP 4.500% 3/15/45		800,000		678,604
				4,091,249
Real Estate Investment Trusts (REITS) — 1.1%
HCP, Inc. 3.400% 2/01/25		1,000,000		936,605
HCP, Inc. 3.875% 8/15/24		500,000		489,172
Ventas Realty LP 3.500% 2/01/25		1,500,000		1,449,622
Welltower, Inc. 4.000% 6/01/25		830,000		829,753
				3,705,152
Retail — 0.1%
Wal-Mart Stores, Inc. 4.000% 4/11/43		400,000		388,769

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

72

MML Total Return Bond Fund – Portfolio of Investments (Continued)

	Principal Amount		Value
Software — 0.2%
Microsoft Corp. 3.750% 2/12/45	$	635,000	$	586,729
Telecommunications — 1.2%
Altice US Finance I Corp. (a) 5.375% 7/15/23		350,000		336,000
Sprint Communications, Inc. (a) 9.000% 11/15/18		700,000		734,510
T-Mobile USA, Inc. 6.250% 4/01/21		345,000		343,793
Verizon Communications, Inc. FRN 1.867% 9/15/16		1,000,000		1,009,493
Verizon Communications, Inc. FRN 2.086% 9/14/18		200,000		205,636
Verizon Communications, Inc. 2.500% 9/15/16		1,509,000		1,529,734
				4,159,166
Transportation — 0.1%
Burlington Northern Santa Fe LLC 4.150% 4/01/45		525,000		489,136
TOTAL CORPORATE DEBT (Cost $75,139,411)				73,616,254
MUNICIPAL OBLIGATIONS — 0.9%
City of New York NY 5.206% 10/01/31		750,000		839,520
Los Angeles Community College District BAB 6.750% 8/01/49		900,000		1,242,603
New York State Dormitory Authority 5.289% 3/15/33		750,000		871,777
				2,953,900
TOTAL MUNICIPAL OBLIGATIONS (Cost $2,736,448)				2,953,900
NON-U.S. GOVERNMENT AGENCY OBLIGATIONS — 22.0%
Commercial MBS — 2.3%
BAMLL Commercial Mortgage Securities Trust, Series 2012-PARK, Class A (a) 2.959% 12/10/30		375,000		378,615
Banc of America Large Loan, Inc., Series 2009-UB2, Class A4AA VRN (a) 5.811% 2/24/51		825,920		853,948
Bear Stearns Commercial Mortgage Securities, Series 2007-PW16, Class A2 VRN 5.843% 6/11/40		126,256		126,650

	Principal Amount		Value
GS Mortgage Securities Trust, Series 2011-GC3, Class A3 (a) 4.473% 3/10/44	$	1,570,000	$	1,587,968
JP Morgan Chase Commercial Mortgage Securities Corp., Series 2011-C4, Class A2 (a) 3.341% 7/15/46		1,298,194		1,308,008
JP Morgan Chase Commercial Mortgage Securities Corp., Series 2010-C2, Class A2 (a) 3.616% 11/15/43		1,200,000		1,249,231
JP Morgan Chase Commercial Mortgage Securities Trust, Series 2011-C3, Class A2 (a) 3.673% 2/15/46		288,151		291,985
JP Morgan Chase Commercial Mortgage Securities Trust, Series 2010-C1, Class A1 (a) 3.853% 6/15/43		56,516		56,517
LB-UBS Commercial Mortgage Trust, Series 2006-C1, Class A4 5.156% 2/15/31		749,607		750,164
Wells Fargo Commercial Mortgage Trust, Series 2010-C1, Class A2 (a) 4.393% 11/15/43		500,000		548,786
WF-RBS Commercial Mortgage Trust, Series 2011-C4, Class A4 VRN (a) 4.902% 6/15/44		800,000		905,308
				8,057,180
Credit Card ABS — 0.2%
Citibank Credit Card Issuance Trust, Series 2014-A3, Class A3 FRN 0.403% 5/09/18		865,000		864,594
Home Equity ABS — 1.5%
Bear Stearns I Trust, Series 2006-HE1, Class 1M1 FRN 0.604% 12/25/35		2,000,000		1,904,095
New Century Home Equity Loan Trust, Series 2005-2, Class M1 FRN 0.624% 6/25/35		1,505,436		1,499,829
Wells Fargo Home Equity Trust, Series 2004-2, Class M3 FRN 0.894% 10/25/34		1,992,891		1,826,335
				5,230,259
Other ABS — 3.2%
Betony CLO Ltd., Series 2015-1A, Class A FRN (a) 1.799% 4/15/27		1,060,000		1,054,962
Blue Hill CLO Ltd., Series 2013-1A, Class A FRN (a) 1.769% 1/15/26		950,000		944,139

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

73

MML Total Return Bond Fund – Portfolio of Investments (Continued)

	Principal Amount		Value
Cedar Funding CLO Ltd., Series 2014-3A, Class A1 FRN (a) 1.863% 5/20/26	$	1,175,000	$	1,166,358
Countrywide Asset-Backed Certificates, Series 2006-15, Class A3 VRN 5.089% 10/25/46		2,343,816		2,203,806
First Frankin Mortgage Loan Trust, Series 2005-FF7, Class M2 FRN 0.664% 7/25/35		1,006,274		956,549
Magnetite CLO Ltd., Series 2015-12A, Class A FRN (a) 1.789% 4/15/27		1,060,000		1,056,001
RAMP Trust, Series 2005-RS2, Class M2 FRN 0.674% 2/25/35		1,602,355		1,592,358
Saxon Asset Securities Trust, Series 2005-1, Class M1 FRN 0.884% 5/25/35		1,106,678		1,046,824
Voya CLO Ltd., Series 2015-1A, Class A1 FRN (a) 1.755% 4/18/27		1,020,000		1,014,667
				11,035,664
Student Loans ABS — 6.9%
Access Group, Inc., Series 2015-1, Class A FRN (a) 0.894% 7/25/56		1,333,753		1,294,176
Collegiate Funding Services Education Loan Trust, Series 2005-A, Class A4 FRN 0.526% 3/28/35		1,500,000		1,384,060
Nelnet Student Loan Trust, Series 2015-1A, Class A FRN (a) 0.784% 4/25/41		1,984,625		1,925,387
Nelnet Student Loan Trust, Series 2015-3A, Class A2 FRN (a) 0.794% 2/26/46		2,075,000		1,994,196
Pennsylvania Higher Education Assistance Agency, Series 2013-3A, Class A FRN (a) 0.944% 11/25/42		1,879,452		1,815,567
SLC Student Loan Trust, Series 2006-2, Class A6 FRN 0.497% 9/15/39		2,300,000		1,952,101
SLC Student Loan Trust, Series 2005-2, Class B FRN 0.617% 3/15/40		443,206		375,363
SLM Student Loan Trust, Series 2007-1, Class A5 FRN 0.385% 1/26/26		2,140,000		2,033,229
SLM Student Loan Trust, Series 2005-4, Class B FRN 0.475% 7/25/40		232,221		194,407

	Principal Amount		Value
SLM Student Loan Trust, Series 2005-9, Class B FRN 0.595% 1/25/41	$	225,424	$	187,428
SLM Student Loan Trust, Series 2012-1, Class A2 FRN 0.644% 11/25/20		1,387,282		1,383,684
SLM Student Loan Trust, Series 2007-6, Class A4 FRN 0.675% 10/25/24		2,120,000		2,002,573
SLM Student Loan Trust, Series 2011-1, Class A1 FRN 0.714% 3/25/26		1,581,210		1,560,437
SLM Student Loan Trust, Series 2012-2, Class A FRN 0.894% 1/25/29		1,824,626		1,787,752
SLM Student Loan Trust, Series 2007-6, Class B FRN 1.145% 4/27/43		639,382		530,211
SLM Student Loan Trust, Series 2007-8, Class B FRN 1.295% 4/27/43		219,690		186,757
SLM Student Loan Trust, Series 2008-9, Class A FRN 1.795% 4/25/23		1,794,363		1,797,426
SLM Student Loan Trust, Series 2008-5, Class B FRN 2.145% 7/25/29		700,000		645,546
SLM Student Loan Trust, Series 2008-9, Class B FRN 2.545% 10/25/29		680,000		653,180
				23,703,480
WL Collateral CMO — 7.9%
Banc of America Funding Ltd., Series 2012-R5, Class A FRN (a) 0.459% 10/03/39		615,970		611,820
Chase Mortgage Finance Corp., Series 2006-A1, Class 4A1 FRN 5.455% 9/25/36		62,802		55,639
Chase Mortgage Finance Trust, Series 2007-A1, Class 11A4 FRN 2.465% 3/25/37		1,075,172		968,171
Citigroup Mortgage Loan Trust, Series 2005-11, Class A2A FRN 2.730% 10/25/35		1,591,985		1,564,200
First Horizon Mortgage Pass-Through Trust, Series 2005-AR5, Class 2A1 FRN 2.619% 11/25/35		1,987,382		1,826,211
GSR Mortgage Loan Trust, Series 2005-AR6, Class 1A1 FRN 2.726% 9/25/35		381,783		381,532

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

74

MML Total Return Bond Fund – Portfolio of Investments (Continued)

	Principal Amount		Value
Impac CMB Trust, Series 2005-1, Class 1A1 FRN 0.714% 4/25/35	$	1,995,775	$	1,785,320
IndyMac Index Mortgage Loan Trust, Series 2006-AR27, Class 1A3 FRN 0.464% 10/25/36		2,978,808		1,957,133
IndyMac Index Mortgage Loan Trust, Series 2005-AR19, Class A1 FRN 2.852% 10/25/35		2,019,388		1,673,657
JP Morgan Alternative Loan Trust, Series 2005-A2, Class 1A1 FRN 0.714% 1/25/36		360,395		322,527
Morgan Stanley Resecuritization Trust, Series 2014-R9, Class 3A FRN (a) 1.023% 11/26/46		1,931,511		1,872,495
Nomura Asset Acceptance Corp. Alternative Loan Trust, Series 2005-AR1, Class M1 FRN 0.764% 2/25/35		3,200,000		2,898,895
Nomura Resecuritization Trust, Series 2015-1R, Class 6A1 FRN (a) 0.426% 5/26/47		1,481,941		1,435,708
Opteum Mortgage Acceptance Corp., Series 2005-5, Class 1APT FRN 0.474% 12/25/35		891,115		769,356
Springleaf Mortgage Loan Trust, Series 2012-3A, Class A VRN (a) 1.570% 12/25/59		1,288,355		1,281,415
WaMu Mortgage Pass-Through Certificates, Series 2005-AR13, Class A1A1 FRN 0.484% 10/25/45		1,703,097		1,592,725
Washington Mutual Mortgage Pass-Through Certificates, Series 2005-AR2, Class 2A21 FRN 0.524% 1/25/45		1,603,130		1,482,154
Washington Mutual Mortgage Pass-Through Certificates, Series 2006-1 Class 3A2 5.750% 2/25/36		2,025,466		1,809,180
Wells Fargo Mortgage Backed Securities Trust, Series 2006-AR8, Class 3A1 FRN 2.599% 4/25/36		2,003,693		1,917,109
Wells Fargo Mortgage Backed Securities Trust, Series 2004-DD, Class 2A6 FRN 2.619% 1/25/35		654,141		652,524
Wells Fargo Mortgage Backed Securities Trust, Series 2006-AR10, Class 1A1 FRN 2.695% 7/25/36		457,172		442,854
				27,300,625

	Principal Amount		Value
TOTAL NON-U.S. GOVERNMENT AGENCY OBLIGATIONS (Cost $76,601,916)			$	76,191,802
U.S. GOVERNMENT AGENCY OBLIGATIONS AND INSTRUMENTALITIES — 28.2%
Collateralized Mortgage Obligations — 1.2%
Federal Home Loan Mortgage Corp. Multifamily Structured Pass Through Certificates Series KF03, Class A 0.539% 1/25/21 FRN	$	1,646,552		1,646,010
Series KSCT, Class A2 4.285% 1/25/20		570,000		631,516
Federal National Mortgage Association-Aces, Series 2015-M10, Class FA FRN 0.455% 3/25/19		1,830,843		1,830,302
				4,107,828
Pass-Through Securities — 27.0%
Federal Home Loan Mortgage Corp. Pool #G18568 2.500% 9/01/30		2,000,000		2,041,719
Pool #G18565 3.000% 8/01/30		1,073,384		1,118,206
Pool #U99114 3.500% 2/01/44		2,183,295		2,277,961
Pool #G07848 3.500% 4/01/44		3,735,406		3,921,884
Pool #G07924 3.500% 1/01/45		3,847,479		4,026,327
Pool #G60023 3.500% 4/01/45		3,843,092		4,028,942
Pool #G08641 3.500% 5/01/45		3,665,388		3,816,299
Pool #G08650 3.500% 6/01/45		2,759,259		2,872,863
Federal National Mortgage Association Pool #AM0359 2.310% 8/01/22		500,000		501,466
Pool #AM0992 2.340% 11/01/22		820,000		819,396
Pool #AM1402 2.420% 11/01/22		945,000		949,297
Pool #AM0827 2.600% 11/01/22		1,025,510		1,050,784
Pool #AM2808 2.700% 3/01/23		375,000		382,691
Pool #AL6829 2.965% 5/01/27		1,386,207		1,405,865
Pool #MA1607 3.000% 10/01/33		1,074,538		1,114,330
Pool #AB4262 3.500% 1/01/32		1,189,181		1,259,092

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

75

MML Total Return Bond Fund – Portfolio of Investments (Continued)

	Principal Amount		Value
Pool #MA1512 3.500% 7/01/33	$	546,178	$	577,263
Pool #MA1148 3.500% 8/01/42		3,550,409		3,713,645
Pool #469621 3.650% 11/01/21		1,636,209		1,765,827
Pool #AM4108 3.850% 8/01/25		388,229		421,042
Pool #AM4109 3.850% 8/01/25		431,905		468,409
Pool #466960 3.890% 12/01/20		1,169,845		1,271,993
Pool #466919 3.930% 1/01/21		1,504,022		1,637,937
Pool #AM4236 3.940% 8/01/25		641,993		699,874
Pool #468551 3.980% 7/01/21		1,230,000		1,345,848
Pool #AM5165 4.080% 1/01/29		664,264		726,985
Pool #931504 4.500% 7/01/39		168,836		185,436
Pool #986268 5.000% 7/01/38		2,172		2,399
Pool #AB0057 5.000% 4/01/39		1,749,539		1,932,762
Pool #AD6374 5.000% 5/01/40		65,491		72,329
Pool #AE6338 5.000% 11/01/40		71,467		78,952
Pool #AI2733 5.000% 5/01/41		537,093		593,845
Pool #977014 5.500% 5/01/38		72,522		81,553
Pool #985524 5.500% 6/01/38		61,774		68,965
Pool #988578 5.500% 8/01/38		481,164		539,129
Pool #995482 5.500% 1/01/39		333,364		374,826
Federal National Mortgage Association TBA Pool #9768 3.000% 12/01/42 (b)		9,425,000		9,550,175
Pool #17115 3.500% 5/01/43 (b)		5,855,000		6,106,582
Pool #18388 4.000% 7/01/42 (b)		670,000		714,597
Pool #18388 4.000% 7/01/42 (b)		6,930,000		7,377,743
Pool #21133 4.500% 4/01/40 (b)		3,250,000		3,523,203

	Principal Amount		Value
Government National Mortgage Association II Pool #MA3033 3.000% 8/20/45	$	3,397,133	$	3,471,711
Pool #MA2826 3.500% 5/20/45		1,940,073		2,034,500
Pool #MA2961 3.500% 7/20/45		1,831,241		1,921,516
Government National Mortgage Association II TBA Pool #1635 3.500% 9/01/43 (b)		7,090,000		7,426,775
Pool #1367 4.000% 4/01/43 (b)		1,975,000		2,103,684
Pool #1523 4.500% 3/01/41 (b)		1,000,000		1,074,375
				93,451,002
TOTAL U.S. GOVERNMENT AGENCY OBLIGATIONS AND INSTRUMENTALITIES (Cost $97,190,674)				97,558,830
U.S. TREASURY OBLIGATIONS — 27.0%
U.S. Treasury Bonds & Notes — 27.0%
U.S. Treasury Bond 2.875% 8/15/45		6,165,000		6,161,267
U.S. Treasury Inflation Index 0.125% 4/15/16		1,173,102		1,161,584
U.S. Treasury Inflation Index 0.125% 7/15/24		3,276,593		3,126,247
U.S. Treasury Inflation Index 0.250% 1/15/25		5,939,802		5,693,164
U.S. Treasury Inflation Index 0.750% 2/15/45		3,922,129		3,401,274
U.S. Treasury Inflation Index 1.375% 2/15/44		4,817,920		4,888,368
U.S. Treasury Inflation Index 2.500% 7/15/16		691,283		702,642
U.S. Treasury Note 0.625% 8/31/17		10,885,000		10,885,426
U.S. Treasury Note 0.750% 12/31/17		100,000		100,039
U.S. Treasury Note 0.875% 11/15/17		16,500,000		16,558,007
U.S. Treasury Note 1.375% 8/31/20		15,240,000		15,257,860
U.S. Treasury Note 1.375% 9/30/20		6,970,000		6,970,000
U.S. Treasury Note 2.000% 8/15/25		5,310,000		5,282,205
U.S. Treasury Note 2.125% 9/30/21		12,895,000		13,268,754
				93,456,837

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

76

MML Total Return Bond Fund – Portfolio of Investments (Continued)

	Principal Amount		Value
TOTAL U.S. TREASURY OBLIGATIONS (Cost $94,219,194)			$	93,456,837
TOTAL BONDS & NOTES (Cost $346,723,837)				344,614,473
TOTAL LONG-TERM INVESTMENTS (Cost $346,723,837)				344,614,473
SHORT-TERM INVESTMENTS — 11.4%
Discount Notes — 8.1%
Federal Home Loan Bank Discount Note 0.000% 10/23/15	$	3,135,000		3,134,986
Federal National Mortgage Association Discount Note 0.000% 1/05/16		2,610,000		2,609,685
Federal Home Loan Bank Discount Note 0.010% 10/02/15		5,115,000		5,114,990
Federal Home Loan Bank Discount Note 0.100% 10/15/15		17,000,000		16,999,339
TOTAL DISCOUNT NOTES (Cost $27,856,599)				27,859,000
Repurchase Agreement — 3.3%
State Street Bank & Trust Co. Repurchase Agreement, dated 9/30/15, 0.010%, due 10/01/15 (c)		11,336,762		11,336,762
Time Deposits — 0.0%
Euro Time Deposit 0.010% 10/01/15		119,453		119,453
U.S. Treasury Bills — 0.0%
U.S. Treasury Bill (d) 0.000% 10/15/15		135,000		134,999
TOTAL SHORT-TERM INVESTMENTS (Cost $39,447,813)				39,450,214
TOTAL INVESTMENTS — 111.1% (Cost $386,171,650) (e)				384,064,687
Other Assets/ (Liabilities) — (11.1)%				(38,276,806	)
NET ASSETS — 100.0%			$	345,787,881

Notes to Portfolio of Investments

Percentages are stated as a percent of net assets.

ABS Asset-Backed Security

BAB Build America Bonds

CLO Collateralized Loan Obligation

CMO Collateralized Mortgage Obligation

FRN Floating Rate Note

MBS Mortgage-Backed Security

STEP Step Up Bond

TBA To Be Announced

VRN Variable Rate Note

WL Whole Loan

(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 September 30, 2015, these securities amounted to a value of $38,111,000 or 11.02% of net assets.

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

(c) Maturity value of $11,336,766. Collateralized by U.S. Government Agency obligations with a rate of 1.750%, maturity date of 9/30/22, and an aggregate market value, including accrued interest, of $11,566,463.

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

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

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

77

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 a no-load, 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 (“American Funds Core Allocation Fund”)

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

MML American Funds^® International Fund (“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, and C.M. Life Insurance Company 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.

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.

78

Notes to Portfolio of Investments (Unaudited) (Continued)

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.

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, 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 (other than short-term obligations) 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. Short-term debt securities are valued at amortized cost or a price the Funds’ investment adviser determines more closely approximates current market value. 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.

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 Board of Trustees (“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 their 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 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 alternate 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.

79

Notes to Portfolio of Investments (Unaudited) (Continued)

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; certain restricted securities; and non-exchange traded equity securities and certain 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; securities and certain derivatives valued by broker quotes which may include brokers’ assumptions; and any illiquid Rule 144A securities or restricted securities issued by non-public entities 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, American Funds Core Allocation Fund, American Funds Growth Fund, 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 September 30, 2015. The Fundamental Growth Fund, Large Cap Growth

80

Notes to Portfolio of Investments (Unaudited) (Continued)

Fund, Small Company Value 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 September 30, 2015. 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.

The following is the aggregate value by input level, as of September 30, 2015, for the remaining Funds’ investments:

	Level 1			Level 2			Level 3		Total
Blue Chip Growth Fund
Asset Investments
Common Stock	$	389,573,999		$	4,726,581	*	$	-	$	394,300,580
Mutual Funds		1,001			-			-		1,001
Short-Term Investments		-			2,203,557			-		2,203,557
Total Investments	$	389,575,000		$	6,930,138		$	-	$	396,505,138
Equity Income Fund
Asset Investments
Common Stock	$	431,589,097		$	7,894,688	*	$	-	$	439,483,785
Mutual Funds		1,146			-			-		1,146
Short-Term Investments		-			9,304,643			-		9,304,643
Total Investments	$	431,590,243		$	17,199,331		$	-	$	448,789,574
Equity Index Fund
Asset Investments
Common Stock	$	404,068,908		$	-		$	-	$	404,068,908
Short-Term Investments		-			3,900,792			-		3,900,792
Total Investments	$	404,068,908		$	3,900,792		$	-	$	407,969,700
Liability Derivatives
Futures Contracts	$	(72,010	)	$	-		$	-	$	(72,010	)
Focused Equity Fund
Asset Investments
Common Stock	$	132,338,495		$	3,061,116		$	-	$	135,399,611
Short-Term Investments		-			14,292,484			-		14,292,484
Total Investments	$	132,338,495		$	17,353,600		$	-	$	149,692,095
Foreign Fund
Asset Investments
Common Stock	$	32,033,740		$	304,871,698	*	$	-	$	336,905,438
Mutual Funds		18,306,009			-			-		18,306,009
Short-Term Investments		-			11,992,434			-		11,992,434
Total Investments	$	50,339,749		$	316,864,132		$	-	$	367,203,881
Fundamental Value Fund
Asset Investments
Common Stock	$	200,087,369		$	5,141,005	*	$	-	$	205,228,374
Short-Term Investments		-			7,109,349			-		7,109,349
Total Investments	$	200,087,369		$	12,250,354		$	-	$	212,337,723

81

Notes to Portfolio of Investments (Unaudited) (Continued)

	Level 1			Level 2			Level 3			Total
Global Fund
Asset Investments
Common Stock	$	139,836,444		$	99,522,100		$	-		$	239,358,544
Mutual Funds		7,541,860			-			-			7,541,860
Short-Term Investments		-			2,906,515			-			2,906,515
Total Investments	$	147,378,304		$	102,428,615		$	-		$	249,806,919
Growth & Income Fund
Asset Investments
Common Stock	$	116,230,338		$	5,079,362	*	$	-		$	121,309,700
Preferred Stock		329,994			-			-			329,994
Short-Term Investments		-			691,582			-			691,582
Total Investments	$	116,560,332		$	5,770,944		$	-		$	122,331,276
Income & Growth Fund
Asset Investments
Common Stock	$	214,208,031		$	5,315,016	*	$	-		$	219,523,047
Short-Term Investments		-			7,074,774			-			7,074,774
Total Investments	$	214,208,031		$	12,389,790		$	-		$	226,597,821
International Equity Fund
Asset Investments
Common Stock	$	9,275,242		$	144,967,271	*	$	-		$	154,242,513
Mutual Funds		1,432,910			-			-			1,432,910
Short-Term Investments		-			3,704,780			-			3,704,780
Total Investments	$	10,708,152		$	148,672,051		$	-		$	159,380,203
Asset Derivatives
Forward Contracts	$	-		$	99,057		$	-		$	99,057
Liability Derivatives
Forward Contracts	$	-		$	(15,577	)	$	-		$	(15,577	)
Managed Volatility Fund
Asset Investments
Common Stock	$	191,996,809		$	-		$	-		$	191,996,809
Corporate Debt		-			-			-	+		-
Purchased Options		915,043			-			-			915,043
Short-Term Investments		-			10,969,452			-			10,969,452
Total Investments	$	192,911,852		$	10,969,452		$	-		$	203,881,304
Liability Description
Written Options	$	(2,832,545	)	$	-		$	-		$	(2,832,545	)
Mid Cap Growth Fund
Asset Investments
Common Stock	$	387,568,265		$	-		$	1,488,492		$	389,056,757
Preferred Stock		-			-			2,198,169			2,198,169
Mutual Funds		25,296,698			-			-			25,296,698
Short-Term Investments		-			20,743,122			-			20,743,122
Total Investments	$	412,864,963		$	20,743,122		$	3,686,661		$	437,294,746

82

Notes to Portfolio of Investments (Unaudited) (Continued)

	Level 1		Level 2			Level 3		Total
Mid Cap Value Fund
Asset Investments
Common Stock	$	438,382,065	$	6,990,033		$	-	$	445,372,098
Short-Term Investments		-		7,408,962			-		7,408,962
Total Investments	$	438,382,065	$	14,398,995		$	-	$	452,781,060
Asset Derivatives
Forward Contracts	$	-	$	17,111		$	-	$	17,111
Liability Derivatives
Forward Contracts	$	-	$	(12,152	)	$	-	$	(12,152	)
Small Cap Growth Equity Fund
Asset Investments
Common Stock	$	188,382,690	$	1,990,510		$	294,664	$	190,667,864
Preferred Stock		-		-			2,651,220		2,651,220
Mutual Funds		19,434,877		-			-		19,434,877
Short-Term Investments		-		5,132,051			-		5,132,051
Total Investments	$	207,817,567	$	7,122,561		$	2,945,884	$	217,886,012
Total Return Bond Fund
Asset Investments
Bank Loans	$	-	$	836,850		$	-	$	836,850
Corporate Debt		-		73,616,254			-		73,616,254
Municipal Obligations		-		2,953,900			-		2,953,900
Non-U.S. Government Agency Obligations		-		76,191,802			-		76,191,802
U.S. Government Agency Obligations and Instrumentalities		-		97,558,830			-		97,558,830
U.S. Treasury Obligations		-		93,456,837			-		93,456,837
Short-Term Investments		-		39,450,214			-		39,450,214
Total Investments	$	-	$	384,064,687		$	-	$	384,064,687
Asset Derivatives
Futures Contracts	$	18,206	$	-		$	-	$	18,206

* 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.

+ Represents a security at $0 value as of September 30, 2015.

The Funds had no transfers between Level 1 and Level 2 of the fair value hierarchy at September 30, 2015. The Funds recognize transfers between the Levels as of the beginning of the year.

Following is a reconciliation of investments for which significant unobservable inputs (Level 3) were used in determining value:

Asset Valuation Inputs

Investments in Securities

Balance as of 12/31/14

Accrued Discounts (Premiums)

Realized Gain (Loss)

Change in Unrealized Appreciation (Depreciation)

Purchases

(Sales)

Transfers into Level 3*

Transfers (out) of Level 3*

Balance as of 9/30/15

Net Change in Unrealized Appreciation (Depreciation) from Investments Still Held as of 9/30/15

Managed Volatility Fund

Corporate Debt

$

-

***

$

-

$

-

$

-

$

-

$

-

$

-

$

-

$

-

††

$

-

83

Notes to Portfolio of Investments (Unaudited) (Continued)

	Investments in Securities
	Balance as of 12/31/14		Accrued Discounts (Premiums)		Realized Gain (Loss)		Change in Unrealized Appreciation (Depreciation)			Purchases		(Sales)			Transfers into Level 3*		Transfers (out) of Level 3*			Balance as of 9/30/15		Net Change in Unrealized Appreciation (Depreciation) from Investments Still Held as of 9/30/15
Mid Cap Growth Fund
Common Stock	$	1,216,929	$	-	$	-	$	163,394		$	108,169	$	-		$	-	$	-		$	1,488,492	$	163,394
Preferred Stock		1,961,775		-		-		236,394			-		-			-		-			2,198,169		236,394
	$	3,178,704	$	-	$	-	$	399,788		$	108,169	$	-		$	-	$	-		$	3,686,661	$	399,788
Small Cap Growth Equity Fund
Common Stock	$	240,155	$	-	$	-	$	54,509		$	-	$	-		$	-	$	-		$	294,664	$	54,509
Preferred Stock		3,653,969		-		209,397		(1,636,365	)		1,040,480		(616,261	)		-		-			2,651,220		202,802
	$	3,894,124	$	-	$	209,397	$	(1,581,856	)	$	1,040,480	$	(616,261	)	$	-	$	-		$	2,945,884	$	257,311
Total Return Bond Fund
Non-U.S. Government Agency Obligations	$	-	$	-	$	-	$	-		$	1,018,957	$	-		$	-	$	(1,018,957	)**	$	-	$	-

* The Fund(s) recognize transfers between the Levels as of the beginning of the year.

** Transfers occurred between Level 3 and Level 2 as inputs were more observable.

*** Represents a security at $0 value as of December 31, 2014.

†† Represents a security at $0 value as of September 30, 2015.

None of the unobservable inputs, individually or collectively, had a material impact on the Fund(s) other than those disclosed below.

The Small Cap Growth Equity Fund initially fair valued certain of its Level 3 investments using acquisition cost. These investments are generally privately held investments, but may include defaulted securities and new debt issuances. There may not be a secondary market, and/or there are a limited number of investors. The determination to fair value such investments at cost is based upon factors consistent with the principles of fair value measurement that are reasonably available to the Valuation Committee. Valuations are reviewed utilizing available market information to determine if the carrying value should be adjusted. Such market data may include, but is not limited to, observations of the trading multiples of public companies considered comparable to the private companies being valued, financial or operational information released by the company, and/or news or corporate events that affect the investment, also referred to as enterprise value (EV) to earnings before interest, taxes, depreciation, and amortization (EBITDA) ratios. Valuations may be adjusted to account for company-specific issues, the lack of liquidity inherent in a nonpublic investment, and the fact that comparable public companies are not identical to the investments being fair valued by the Fund. All market variables are assessed on a regular frequency and calibrated as necessary.

	Fair Value Amount		Valuation Technique	Unobservable Input Description	Value/ Weighted Average Range
Small Cap Growth Equity
Common stock	$	294,664
Dropbox, Inc.		139,552	Market Approach	EV/Multiple		6.56x
				Discount for Lack of Marketability		10%
Telogis		155,112	Market Approach	Market Observed Transaction - Option Pricing Method	$	2.25
Preferred stock		2,651,220
Cloudera, Inc.		348,524	Market Approach	EV/Multiple		10.10x
				Discount for Lack of Marketability		10%

84

Notes to Portfolio of Investments (Unaudited) (Continued)

	Fair Value Amount		Valuation Technique	Unobservable Input Description	Value/ Weighted Average Range
Small Cap Growth Equity (Continued)
Docusign Series F	$	22,717	Market Approach	EV/Multiple		6.50x
				Discount for Lack of Marketability		10%
Docusign Series E		157,018	Market Approach	EV/Multiple		6.50x
				Discount for Lack of Marketability		10%
Docusign Series D		6,069	Market Approach	EV/Multiple		6.50x
				Discount for Lack of Marketability		10%
Docusign Series B		8,463	Market Approach	EV/Multiple		6.50x
				Discount for Lack of Marketability		10%
Docusign Series B1		2,524	Market Approach	EV/Multiple		6.50x
				Discount for Lack of Marketability		10%
DraftKings, Inc. Series D-1		220,335	Cost	Acquisition Cost	$	7.67
DraftKings, Inc. Series D		113,969	Cost	Acquisition Cost	$	7.67
MarkLogic Corp. Series F		269,851	Market Approach	EV/Multiple		3.30x
				Discount for Lack of Marketability		10%
NUTANIX, Inc.		282,700	Market Approach	Market Observed Transaction	$	20.00
Telogis		485,958	Market Approach	Market Observed Transaction - Option Pricing Method	$	2.25
The Honest Co. Series D		184,255	Cost	Acquisition Cost	$	45.76
Veracode, Inc		283,125	Market Approach	EV/Multiple		7.43x
				Discount for Lack of Marketability		10%
Zuora, Inc. Series F		265,712	Cost	Acquisition Cost	$	3.80
Total	$	2,945,884

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. Gains or losses from derivatives can be substantially greater than the derivatives 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 September 30, 2015, the following tables 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					M
Substitution for Direct Investment	A				M
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.

85

Notes to Portfolio of Investments (Unaudited) (Continued)

At September 30, 2015, 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
Liability Derivatives
Futures Contracts	$	(72,010	)	$	-		$	-	$	(72,010	)
Number of Contracts, Notional Amounts or Shares/Units†
Futures Contracts		46			-			-		46
International Equity Fund
Asset Derivatives
Forward Contracts	$	-		$	99,057		$	-	$	99,057
Liability Derivatives
Forward Contracts	$	-		$	(15,577	)	$	-	$	(15,577	)
Number of Contracts, Notional Amounts or Shares/Units†
Forward Contracts	$	-		$	5,931,409		$	-	$	5,931,409
Managed Volatility Fund
Asset Derivatives
Purchased Options	$	915,043		$	-		$	-	$	915,043
Liability Derivatives
Written Options	$	(2,832,545	)	$	-		$	-	$	(2,832,545	)
Number of Contracts, Notional Amounts or Shares/Units†
Purchased Options		733			-			-		733
Written Options		996			-			-		996
Mid Cap Value Fund
Asset Derivatives
Forward Contracts	$	-		$	17,111		$	-	$	17,111
Liability Derivatives
Forward Contracts	$	-		$	(12,152	)	$	-	$	(12,152	)
Number of Contracts, Notional Amounts or Shares/Units†
Forward Contracts	$	-		$	15,763,736		$	-	$	15,763,736
Total Return Bond Fund
Asset Derivatives
Futures Contracts	$	-		$	-		$	18,206	$	18,206
Number of Contracts, Notional Amounts or Shares/Units†
Futures Contracts		-			-			84		84

† Amount(s) disclosed represent number of contracts for futures contracts, notional amounts for forward contracts, or shares/units outstanding for written options and purchased options at September 30, 2015.

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Notes to Portfolio of Investments (Unaudited) (Continued)

Further details regarding the derivatives and other investments held by the Fund(s) at September 30, 2015, 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.

The Fund(s) listed in the following table had open forward foreign currency contracts at September 30, 2015. A Fund’s current exposure to a counterparty is the unrealized appreciation on the contract.

		Counterparty	Settlement Date	In Exchange for		Unrealized Appreciation/ (Depreciation)
International Equity Fund
Contracts to Buy
AUD	660,000	State Street Bank and Trust	03/16/16	$	475,011	$	(15,577	)
Contracts to Deliver
AUD	1,234,000	State Street Bank and Trust	03/16/16	$	935,199	$	76,197
CHF	4,355,000	State Street Bank and Trust	03/16/16		4,521,199		22,860
				$	5,456,398	$	99,057
Mid Cap Value Fund
Contracts to Buy
JPY	7,622,144	Credit Suisse International	10/30/15	$	63,575	$	(17	)
EUR	151,251	UBS AG	10/30/15		168,972		107
				$	232,547	$	90

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Notes to Portfolio of Investments (Unaudited) (Continued)

		Counterparty	Settlement Date	In Exchange for		Unrealized Appreciation/ (Depreciation)
Mid Cap Value Fund (Continued)
Contracts to Deliver
JPY	196,030,219	Credit Suisse International	10/30/15	$	1,622,471	$	(12,135	)
CAD	10,538,717	JPMorgan Chase Bank	10/30/15		7,911,498		15,506
EUR	5,363,532	UBS AG	10/30/15		5,997,220		1,498
				$	15,531,189	$	4,869

AUD Australian Dollar

CAD Canadian Dollar

CHF Swiss Franc

EUR Euro

JPY Japanese Yen

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 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. 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 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.

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 the 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.

The Fund(s) listed in the following table had open futures contracts at September 30, 2015:

	Expiration Date		Number of Contracts		Notional Amount		Net Unrealized Appreciation/ (Depreciation)
Equity Index Fund
Futures Contracts — Long
S&P 500 E Mini Index		12/18/15		46	$	4,390,010	$	(72,010	)
Total Return Bond Fund
Futures Contracts — Long
U.S. Treasury Note 10 Year		12/21/15		84	$	10,813,687	$	18,206

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Notes to Portfolio of Investments (Unaudited) (Continued)

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.

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

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Notes to Portfolio of Investments (Unaudited) (Continued)

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.

The Fund(s) listed in the following table had open written option contracts at September 30, 2015:

	Units	Expiration Date		Description	Premiums Received		Value
Managed Volatility Fund
	94		10/02/15	S&P 500 Index Call, Strike 1,930.00	$	187,876	$	81,780
	117		10/09/15	S&P 500 Index Call, Strike 1,950.00		339,329		138,060
	112		10/16/15	S&P 500 Index Call, Strike 1,900.00		373,800		487,760
	112		10/16/15	S&P 500 Index Call, Strike 1,925.00		537,320		327,040
	118		10/16/15	S&P 500 Index Call, Strike 1,950.00		352,835		211,220
	106		10/16/15	S&P 500 Index Call, Strike 1,975.00		423,735		95,930
	112		11/20/15	S&P 500 Index Call, Strike 1,900.00		570,920		732,480
	113		11/20/15	S&P 500 Index Call, Strike 1,925.00		1,022,368		573,475
	112		11/20/15	S&P 500 Index Call, Strike 2,000.00		580,928		184,800
					$	4,389,111	$	2,832,545

Transactions in written option contracts during the period ended September 30, 2015, were as follows:

	Number of Contracts			Premiums Received
Managed Volatility Fund
Options outstanding at December 31, 2014		1,779		$	7,831,873
Options written		7,930			39,482,736
Options terminated in closing purchase transactions		(8,576	)		(42,728,370	)
Options expired		(137	)		(197,128	)
Options outstanding at September 30, 2015		996		$	4,389,111

Inflation-Indexed Bonds

The Funds may invest in inflation-indexed bonds, which are fixed income securities whose principal value or coupon is periodically adjusted according to the rate of inflation, as measured by the Consumer Price Index for All Urban Consumers (“CPI-U”) (for U.S. Treasury inflation-indexed bonds) or, generally, by a comparable inflation index calculated by the foreign government issuing the inflation-indexed bonds.

If the periodic adjustment rate measuring inflation falls, the principal value of inflation-indexed bonds will be adjusted downward, and consequently the interest payable on these securities (calculated with respect to a smaller principal amount) will be reduced. Repayment of the original bond principal upon maturity (as adjusted for inflation) is guaranteed in the case of U.S. Treasury inflation-indexed bonds, even during a period of deflation. However, the current market value of the bonds is not guaranteed, and will fluctuate. The Funds may also invest in other inflation related bonds which may or may not provide a similar guarantee. If a guarantee of principal is not provided, the adjusted principal value of the bond repaid at maturity may be less than the original principal. Any adjustments to the principal amount of an inflation-indexed bond due to inflation will be reflected as increases or decreases to interest income. Such adjustments may have a significant impact on the Fund’s distributions.

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Notes to Portfolio of Investments (Unaudited) (Continued)

The value of inflation-indexed bonds is generally based on changes in real interest rates, which in turn are tied to the relationship between nominal interest rates and the rate of inflation. Therefore, if nominal interest rates increased at a faster rate than inflation, real interest rates might rise, leading to a decrease in value of inflation-indexed bonds. While the values of these securities are expected to be protected from long-term inflationary trends, short-term increases in inflation may lead to a decline in value. There can be no assurance that the CPI-U or any foreign inflation index will accurately measure the real rate of inflation, or that the rate of inflation in a foreign country will correlate to the rate of inflation in the United States. Additionally, if interest rates rise due to reasons other than inflation, investors in these securities may not be protected to the extent that the increase is not reflected in the bond’s inflation measure.

Bank Loans

Certain of the Funds 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 September 30, 2015, the Funds had no unfunded loan commitments.

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

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Notes to Portfolio of Investments (Unaudited) (Continued)

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.

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 qualifying U.S. and foreign securities held by a Fund to approved borrowers (each, a “Borrower”).

Each Fund expects that in connection with any securities on loan, the loan will be secured continuously by collateral consisting of cash or securities adjusted daily to have market 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. As with other extensions of credit, the Funds may bear the risk of delay in recovery or even loss of rights in the collateral should the Borrower of the securities fail financially. 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 September 30, 2015, the Funds’ collateral was equal to or greater than 100% of the market value of securities on loan.

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 estimate the components of distributions received that may be considered 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.

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Notes to Portfolio of Investments (Unaudited) (Continued)

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, American Funds Core Allocation Fund, American Funds Growth Fund, 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. Because the underlying funds have varied expense and fee levels and each Fund, except American Funds Growth Fund and 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.

Foreign Securities

Each of the Foreign Fund and the International Equity Fund invests substantially all of its assets and the Global Fund invests a significant amount 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 Internal Revenue Code of 1986, as amended (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 September 30, 2015, the cost of securities and the unrealized appreciation (depreciation) in the value of 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	$	127,677,130	$	120,217	$	(10,282,335	)	$	(10,162,118	)
American Funds Core Allocation Fund		729,522,846		33,757,647		(836,721	)		32,920,926
American Funds Growth Fund		116,946,412		1,664,600		-			1,664,600
American Funds International Fund		53,193,976		-		(297,973	)		(297,973	)
Balanced Allocation Fund		588,080,003		2,891,122		(26,036,622	)		(23,145,500	)
Blue Chip Growth Fund		283,104,516		120,879,810		(7,479,188	)		113,400,622
Conservative Allocation Fund		480,731,076		4,715		(24,115,125	)		(24,110,410	)
Equity Income Fund		380,707,979		109,020,631		(40,939,036	)		68,081,595
Equity Index Fund		244,595,181		175,707,533		(12,333,014	)		163,374,519
Focused Equity Fund		147,752,324		20,059,960		(18,120,189	)		1,939,771
Foreign Fund		376,206,334		42,707,448		(51,709,901	)		(9,002,453	)
Fundamental Growth Fund		154,805,810		27,067,167		(4,735,175	)		22,331,992
Fundamental Value Fund		181,299,231		42,437,098		(11,398,606	)		31,038,492
Global Fund		220,641,913		39,592,590		(10,427,584	)		29,165,006
Growth Allocation Fund		1,602,058,380		42,280,753		(66,067,740	)		(23,786,987	)
Growth & Income Fund		94,922,807		31,109,461		(3,700,992	)		27,408,469
Income & Growth Fund		200,066,440		35,707,107		(9,175,726	)		26,531,381
International Equity Fund		189,355,643		450,383		(30,425,823	)		(29,975,440	)
Large Cap Growth Fund		180,842,300		32,405,755		(7,418,768	)		24,986,987
Managed Volatility Fund		193,901,526		25,004,475		(15,024,697	)		9,979,778
Mid Cap Growth Fund		328,700,833		121,361,320		(12,767,407	)		108,593,913
Mid Cap Value Fund		463,154,943		27,725,973		(38,099,856	)		(10,373,883	)
Moderate Allocation Fund		2,375,495,481		11,048,573		(116,074,128	)		(105,025,555	)
Small Cap Growth Equity Fund		217,651,696		21,165,256		(20,930,940	)		234,316
Small Company Value Fund		89,244,282		18,047,592		(6,190,101	)		11,857,491
Small/Mid Cap Value Fund		207,984,964		23,456,713		(21,405,465	)		2,051,248
Total Return Bond Fund		386,171,650		3,292,145		(5,399,108	)		(2,106,963	)

4. Investment in Affiliated Issuers

A summary of the Funds’ transactions in the securities of affiliated issuers during the period ended September 30, 2015, was as follows:

	Number of Shares Held as of 12/31/14		Purchases		Sales		Number of Shares Held as of 9/30/15		Value as of 9/30/15		Dividend Income		Realized Gains Distributions		Net Realized Gain (Loss)
Aggressive Allocation Fund
MML Blue Chip Growth Fund, Initial Class		564,279		152,424		76,119		640,584	$	9,205,186	$	-	$	1,592,402	$	578,133
MML Dynamic Bond Fund, Class ll		-		226,427		2,016		224,411		2,223,916		6,078		-		(101	)
MML Equity Income Fund, Initial Class		458,450		129,162		59,824		527,788		5,631,500		117,873		622,015		273,401
MML Focused Equity Fund, Class II		366,280		136,747		51,510		451,517		5,187,932		107,250		767,726		222,703
MML Foreign Fund, Initial Class		453,685		195,318		24,119		624,884		5,817,670		182,220		-		28,035
MML Fundamental Growth Fund, Class II		453,726		142,520		96,609		499,637		5,800,782		50,357		1,172,259		376,553
MML Fundamental Value Fund, Class II		390,143		104,933		33,774		461,302		6,218,358		91,704		520,727		144,733

94

Notes to Portfolio of Investments (Unaudited) (Continued)

	Number of Shares Held as of 12/31/14		Purchases		Sales		Number of Shares Held as of 9/30/15		Value as of 9/30/15		Dividend Income		Realized Gains Distributions		Net Realized Gain (Loss)
Aggressive Allocation Fund (Continued)
MML Global Fund, Class I		499,894		242,696		80,461		662,129	$	7,482,054	$	88,520	$	339,235	$	442,287
MML High Yield Fund, Class II		5,880		-		5,880		-		-		-		-		(5,263	)
MML Income & Growth Fund, Initial Class		381,619		96,514		58,089		420,044		4,439,868		90,643		295,935		190,452
MML Inflation-Protected and Income Fund, Initial Class		291,882		37,537		20,979		308,440		3,112,161		2,315		-		(25,204	)
MML International Equity Fund, Class II		520,644		172,917		25,010		668,551		5,662,631		11,915		-		(15,422	)
MML Large Cap Growth Fund, Initial Class		475,358		147,203		106,363		516,198		5,647,209		-		1,204,342		454,440
MML Managed Bond Fund, Initial Class		333,211		46,903		178,181		201,933		2,544,409		50,847		18,439		(41,320	)
MML Managed Volatility Fund, Initial Class		363,799		5,654		369,453		-		-		-		-		(28,867	)
MML Mid Cap Growth Fund, Initial Class		429,121		102,437		52,240		479,318		7,050,772		-		828,306		349,866
MML Mid Cap Value Fund, Initial Class		557,787		155,716		59,183		654,320		6,732,952		136,318		1,011,188		174,350
MML Short-Duration Bond Fund, Class II		242,510		32,488		15,044		259,954		2,573,542		29,782		-		(2,491	)
MML Small Cap Growth Equity Fund, Initial Class		176,916		38,786		84,934		130,768		1,741,172		-		371,057		105,712
MML Small Company Value Fund, Class II		195,361		38,058		13,951		219,468		3,191,065		10,790		331,876		8,583
MML Small/Mid Cap Value Fund, Initial Class		163,877		47,351		19,436		191,792		2,138,480		16,614		379,540		30,953
MML Strategic Emerging Markets Fund, Class II		419,279		116,936		38,414		497,801		3,882,846		51,145		-		(54,128	)
MML Total Return Bond Fund, Class II		173,768		19,349		38,375		154,742		1,583,011		52,971		17,273		(7,444	)
Oppenheimer Discovery Mid Cap Growth Fund/VA, Non-Service Shares*		30,702		10,355		5,615		35,442		2,615,234		-		251,558		52,577
Oppenheimer Global Fund/VA, Non-Service Shares*		64,709		59,176		32,748		91,137		3,282,739		41,715		207,973		247,893
Oppenheimer Global Multi-Alternatives Fund/VA, Non-Service Shares*		590,256		566,897		-		1,157,153		11,328,524		-		-		-
Oppenheimer Global Strategic Income Fund/VA, Non-Service Shares*		14,638		-		14,638		-		-		-		-		(962	)
Oppenheimer International Growth Fund/VA, Non-Service Shares*		1,559,480		297,232		698,339		1,158,373		2,420,999		32,649		199,273		201,235
									$	117,515,012	$	1,171,706	$	10,131,124	$	3,700,704
Balanced Allocation Fund
MML Blue Chip Growth Fund, Initial Class		1,672,364		350,929		286,183		1,737,110	$	24,962,269	$	-	$	4,333,731	$	2,522,729
MML Dynamic Bond Fund, Class ll		-		6,231,186		50,403		6,180,783		61,251,562		167,267		-		(2,520	)
MML Equity Income Fund, Initial Class		1,761,921		292,389		292,556		1,761,754		18,797,912		395,108		2,084,991		1,486,714
MML Focused Equity Fund, Class II		779,283		216,020		122,450		872,853		10,029,086		208,256		1,490,757		522,548
MML Foreign Fund, Initial Class		1,184,484		507,531		104,368		1,587,647		14,780,992		464,140		-		204,949
MML Fundamental Growth Fund, Class II		1,285,251		338,174		228,462		1,394,963		16,195,516		141,149		3,285,808		909,256
MML Fundamental Value Fund, Class II		1,455,693		240,415		134,560		1,561,548		21,049,664		311,544		1,769,054		571,050
MML Global Fund, Class I		1,119,769		387,928		141,106		1,366,591		15,442,483		183,240		702,232		675,397
MML High Yield Fund, Class II		2,009,508		88,124		17,362		2,080,270		20,074,608		670,642		114,970		(5,757	)
MML Income & Growth Fund, Initial Class		1,466,044		305,774		171,807		1,600,011		16,912,115		346,544		1,131,416		567,135
MML Inflation-Protected and Income Fund, Initial Class		2,027,046		126,296		155,083		1,998,259		20,162,431		15,176		-		(80,040	)
MML International Equity Fund, Class II		1,365,174		456,296		123,050		1,698,420		14,385,614		30,346		-		(59,476	)
MML Large Cap Growth Fund, Initial Class		1,350,440		364,681		274,052		1,441,069		15,765,297		-		3,375,660		1,331,115
MML Managed Bond Fund, Initial Class		10,638,276		805,732		3,082,451		8,361,557		105,358,066		1,753,068		554,713		101,152

95

Notes to Portfolio of Investments (Unaudited) (Continued)

	Number of Shares Held as of 12/31/14		Purchases		Sales		Number of Shares Held as of 9/30/15		Value as of 9/30/15		Dividend Income		Realized Gains Distributions		Net Realized Gain (Loss)
Balanced Allocation Fund (Continued)
MML Managed Volatility Fund, Initial Class		1,000,281		5,151		1,005,432		-	$	-	$	-	$	-	$	(89,172	)
MML Mid Cap Growth Fund, Initial Class		989,339		158,549		122,770		1,025,118		15,079,486		-		1,776,328		728,533
MML Mid Cap Value Fund, Initial Class		1,325,557		388,201		114,170		1,599,588		16,459,760		334,186		2,478,948		329,556
MML Short-Duration Bond Fund, Class II		2,514,332		46,470		450,889		2,109,913		20,888,143		269,273		-		(109,624	)
MML Small Cap Growth Equity Fund, Initial Class		408,657		74,031		174,467		308,221		4,103,963		-		878,590		461,650
MML Small Company Value Fund, Class II		462,499		65,958		38,132		490,325		7,129,331		24,178		743,698		(3,779	)
MML Small/Mid Cap Value Fund, Initial Class		410,739		83,175		105,035		388,879		4,335,999		33,809		772,341		166,698
MML Total Return Bond Fund, Class II		5,910,819		385,499		1,438,942		4,857,376		49,690,959		1,668,571		544,076		968,307
Oppenheimer Discovery Mid Cap Growth Fund/VA, Non-Service Shares*		70,294		12,075		8,870		73,499		5,423,485		-		505,704		82,527
Oppenheimer Global Fund/VA, Non-Service Shares*		307,582		134,436		93,302		348,716		12,560,758		172,417		859,566		1,025,257
Oppenheimer Global Multi-Alternatives Fund/VA, Non-Service Shares*		2,919,619		1,296,178		-		4,215,797		41,272,648		-		-		-
Oppenheimer Global Strategic Income Fund/VA, Non-Service Shares*		3,999,649		79,840		4,079,489		-		-		403,990		-		(644,856	)
Oppenheimer International Growth Fund/VA, Non-Service Shares*		5,346,658		2,130,621		1,342,180		6,135,099		12,822,356		166,457		1,015,981		725,877
									$	564,934,503	$	7,759,361	$	28,418,564	$	12,385,226
Conservative Allocation Fund
MML Blue Chip Growth Fund, Initial Class		1,108,468		306,050		216,200		1,198,318	$	17,219,828	$	-	$	3,030,533	$	1,399,225
MML Dynamic Bond Fund, Class ll		-		5,935,571		50,403		5,885,168		58,322,018		159,332		-		(2,520	)
MML Equity Income Fund, Initial Class		1,305,812		287,369		252,475		1,340,706		14,305,331		304,319		1,605,896		1,325,545
MML Focused Equity Fund, Class II		426,033		148,820		76,233		498,620		5,729,148		119,025		852,012		305,204
MML Foreign Fund, Initial Class		680,114		321,838		52,090		949,862		8,843,218		279,070		-		49,037
MML Fundamental Growth Fund, Class II		862,515		280,809		157,808		985,516		11,441,838		100,945		2,349,907		550,789
MML Fundamental Value Fund, Class II		1,051,603		251,427		144,843		1,158,187		15,612,362		234,863		1,333,631		828,716
MML Global Fund, Class I		753,705		300,294		123,332		930,667		10,516,538		125,615		481,394		616,657
MML High Yield Fund, Class II		1,856,018		71,386		57,483		1,869,921		18,044,742		611,171		106,188		(19,133	)
MML Income & Growth Fund, Initial Class		849,973		238,173		94,378		993,768		10,504,132		215,833		704,664		283,161
MML Inflation-Protected and Income Fund, Initial Class		1,833,931		171,096		166,896		1,838,131		18,546,738		13,661		-		(232,644	)
MML International Equity Fund, Class II		781,144		296,587		61,613		1,016,118		8,606,520		18,247		-		(31,903	)
MML Large Cap Growth Fund, Initial Class		910,651		294,574		186,707		1,018,518		11,142,583		-		2,415,743		777,242
MML Managed Bond Fund, Initial Class		10,091,028		1,318,504		2,889,155		8,520,377		107,359,251		1,692,839		530,402		(706,980	)
MML Managed Volatility Fund, Initial Class		647,599		-		647,599		-		-		-		-		(61,874	)
MML Mid Cap Growth Fund, Initial Class		489,785		146,688		63,261		573,212		8,431,952		-		1,000,303		266,808
MML Mid Cap Value Fund, Initial Class		799,616		312,221		85,176		1,026,661		10,564,342		216,086		1,602,903		162,304
MML Short-Duration Bond Fund, Class II		2,318,005		24,113		604,560		1,737,558		17,201,821		238,434		-		(129,266	)
MML Small Cap Growth Equity Fund, Initial Class		238,652		50,857		116,143		173,366		2,308,364		-		500,824		201,117
MML Small Company Value Fund, Class II		317,539		60,406		32,254		345,691		5,026,345		17,188		528,691		63,151

96

Notes to Portfolio of Investments (Unaudited) (Continued)

	Number of Shares Held as of 12/31/14		Purchases		Sales		Number of Shares Held as of 9/30/15		Value as of 9/30/15		Dividend Income		Realized Gains Distributions		Net Realized Gain (Loss)
Conservative Allocation Fund (Continued)
MML Small/Mid Cap Value Fund, Initial Class		234,751		51,895		86,834		199,812	$	2,227,903	$	17,566	$	401,275	$	136,859
MML Total Return Bond Fund, Class II		5,752,757		559,754		1,717,167		4,595,344		47,010,368		1,593,815		519,700		670,533
Oppenheimer Discovery Mid Cap Growth Fund/VA, Non-Service Shares*		35,830		9,979		4,711		41,098		3,032,617		-		271,446		53,738
Oppenheimer Global Fund/VA, Non-Service Shares*		180,730		81,236		41,174		220,792		7,952,937		113,287		564,780		507,127
Oppenheimer Global Multi-Alternatives Fund/VA, Non-Service Shares*		2,359,705		704,390		-		3,064,095		29,997,494		-		-		-
Oppenheimer Global Strategic Income Fund/VA, Non-Service Shares*		3,912,966		78,368		3,991,334		-		-		396,541		-		(579,113	)
Oppenheimer International Growth Fund/VA, Non-Service Shares*		3,030,603		1,140,983		979,109		3,192,477		6,672,276		84,785		517,488		171,461
									$	456,620,666	$	6,552,622	$	19,317,780	$	6,605,241
Growth Allocation Fund
MML Blue Chip Growth Fund, Initial Class		6,943,503		1,352,612		884,249		7,411,866	$	106,508,512	$	-	$	18,550,886	$	7,358,897
MML Dynamic Bond Fund, Class ll		-		8,697,860		100,806		8,597,054		85,196,802		233,482		-		(5,040	)
MML Equity Income Fund, Initial Class		5,747,051		1,080,048		762,839		6,064,260		64,705,658		1,365,197		7,204,162		3,951,873
MML Focused Equity Fund, Class II		4,410,908		1,264,410		580,445		5,094,873		58,540,096		1,219,742		8,731,267		2,560,320
MML Foreign Fund, Initial Class		4,702,623		2,333,056		398,388		6,637,291		61,793,175		1,943,773		-		890,530
MML Fundamental Growth Fund, Class II		5,462,334		1,277,755		974,244		5,765,845		66,941,465		585,709		13,634,736		3,878,726
MML Fundamental Value Fund, Class II		4,909,630		776,510		343,873		5,342,267		72,013,755		1,069,660		6,073,899		2,207,511
MML Global Fund, Class I		6,544,819		2,142,920		1,005,752		7,681,987		86,806,454		1,032,829		3,958,121		6,722,860
MML High Yield Fund, Class II		1,699,715		65,146		66,657		1,698,204		16,387,668		557,419		97,246		(18,829	)
MML Income & Growth Fund, Initial Class		4,593,643		659,897		464,807		4,788,733		50,616,905		1,041,684		3,400,949		1,538,050
MML Inflation-Protected and Income Fund, Initial Class		6,199,487		340,943		376,162		6,164,268		62,197,464		46,852		-		(172,663	)
MML International Equity Fund, Class II		5,397,692		2,035,051		332,128		7,100,615		60,142,210		127,101		-		(135,094	)
MML Large Cap Growth Fund, Initial Class		5,731,581		1,324,640		1,100,154		5,956,067		65,159,376		-		14,008,088		6,047,715
MML Managed Bond Fund, Initial Class		15,187,866		467,311		6,024,781		9,630,396		121,345,810		2,293,871		794,391		130,503
MML Managed Volatility Fund, Initial Class		4,282,220		13,789		4,296,009		-		-		-		-		(379,254	)
MML Mid Cap Growth Fund, Initial Class		4,778,861		800,397		591,726		4,987,532		73,366,597		-		8,665,653		5,622,836
MML Mid Cap Value Fund, Initial Class		6,102,725		1,351,402		620,838		6,833,289		70,314,545		1,432,026		10,622,597		3,634,426
MML Short-Duration Bond Fund, Class II		4,208,966		408,522		471,147		4,146,341		41,048,776		503,094		-		(79,152	)
MML Small Cap Growth Equity Fund, Initial Class		1,897,224		296,498		842,784		1,350,938		17,987,715		-		3,871,203		2,401,144
MML Small Company Value Fund, Class II		2,137,814		265,618		141,798		2,261,634		32,884,157		111,875		3,441,164		295,082
MML Small/Mid Cap Value Fund, Initial Class		1,838,275		386,064		237,628		1,986,711		22,151,828		173,223		3,957,166		373,785
MML Strategic Emerging Markets Fund, Class II		4,473,421		888,910		388,691		4,973,640		38,794,393		514,567		-		(625,327	)
MML Total Return Bond Fund, Class II		8,276,281		395,314		1,724,275		6,947,320		71,071,081		2,393,903		780,588		1,382,911
Oppenheimer Discovery Mid Cap Growth Fund/VA, Non-Service Shares *		324,794		72,021		39,394		357,421		26,374,090		-		2,531,441		326,216
Oppenheimer Global Fund/VA, Non-Service Shares *		796,419		503,677		245,530		1,054,566		37,985,475		496,840		2,476,945		2,783,064

97

Notes to Portfolio of Investments (Unaudited) (Continued)

	Number of Shares Held as of 12/31/14		Purchases		Sales		Number of Shares Held as of 9/30/15		Value as of 9/30/15		Dividend Income		Realized Gains Distributions		Net Realized Gain (Loss)
Growth Allocation Fund (Continued)
Oppenheimer Global Multi-Alternatives Fund/VA, Non-Service Shares *		8,331,471		5,909,966		-		14,241,437	$	139,423,673	$	-	$	-	$	-
Oppenheimer Global Strategic Income Fund/VA, Non-Service Shares *		3,289		-		3,289		-		-		-		-		(126	)
Oppenheimer International Growth Fund/VA, Non-Service Shares *		18,560,470		2,688,330		7,605,875		13,642,925		28,513,713		390,085		2,380,917		4,409,714
									$	1,578,271,393	$	17,532,932	$	115,181,419	$	55,100,678
Moderate Allocation Fund
MML Blue Chip Growth Fund, Initial Class		7,469,514		1,773,766		995,436		8,247,844	$	118,521,518	$	-	$	20,358,498	$	9,000,594
MML Dynamic Bond Fund, Class ll		-		19,731,614		100,806		19,630,808		194,541,306		529,667		-		(5,040	)
MML Equity Income Fund, Initial Class		6,690,847		1,676,455		575,620		7,791,682		83,137,252		1,726,721		9,111,931		3,081,272
MML Focused Equity Fund, Class II		4,049,828		1,591,581		366,406		5,275,003		60,609,783		1,243,317		8,900,029		1,694,326
MML Foreign Fund, Initial Class		4,619,959		3,182,575		146,625		7,655,909		71,276,513		2,223,518		-		385,020
MML Fundamental Growth Fund, Class II		5,840,289		1,643,760		1,034,411		6,449,638		74,880,297		644,772		15,009,676		4,191,409
MML Fundamental Value Fund, Class II		5,753,191		1,254,843		160,270		6,847,764		92,307,857		1,352,067		7,677,506		891,689
MML Global Fund, Class I		7,253,182		1,662,470		882,927		8,032,725		90,769,797		1,067,364		4,090,473		5,046,199
MML High Yield Fund, Class II		6,081,792		349,559		-		6,431,351		62,062,540		2,051,403		347,958		-
MML Income & Growth Fund, Initial Class		6,201,946		1,110,150		322,122		6,989,974		73,884,025		1,497,042		4,887,630		1,129,961
MML Inflation-Protected and Income Fund, Initial Class		6,555,075		552,417		178,740		6,928,752		69,911,112		51,307		-		(126,783	)
MML International Equity Fund, Class II		5,300,929		3,008,611		118,514		8,191,026		69,377,990		145,382		-		(47,369	)
MML Large Cap Growth Fund, Initial Class		6,137,665		1,705,662		1,178,677		6,664,650		72,911,272		-		15,421,543		6,044,919
MML Managed Bond Fund, Initial Class		32,590,196		3,473,091		9,031,718		27,031,569		340,605,685		5,534,128		1,773,185		421,925
MML Managed Volatility Fund, Initial Class		4,503,232		90,261		4,593,493		-		-		-		-		(328,528	)
MML Mid Cap Growth Fund, Initial Class		4,635,039		971,302		413,996		5,192,345		76,379,398		-		8,922,738		3,182,346
MML Mid Cap Value Fund, Initial Class		6,305,478		2,067,236		247,146		8,125,568		83,612,096		1,683,426		12,487,450		599,098
MML Short-Duration Bond Fund, Class II		7,627,141		463,485		570,490		7,520,136		74,449,343		889,194		-		(149,980	)
MML Small Cap Growth Equity Fund, Initial Class		1,870,987		386,665		747,779		1,509,873		20,103,937		-		4,245,327		1,939,039
MML Small Company Value Fund, Class II		2,331,749		385,028		92,751		2,624,026		38,153,341		128,220		3,943,908		72,498
MML Small/Mid Cap Value Fund, Initial Class		1,864,400		398,407		529,730		1,733,077		19,323,808		148,927		3,402,134		1,052,092
MML Strategic Emerging Markets Fund, Class II		4,014,300		1,047,404		149,498		4,912,206		38,315,208		500,232		-		(189,908	)
MML Total Return Bond Fund, Class II		17,821,385		1,481,102		3,615,923		15,686,564		160,473,549		5,333,378		1,739,071		2,625,068
Oppenheimer Discovery Mid Cap Growth Fund/VA, Non-Service Shares*		319,778		74,563		24,275		370,066		27,307,178		-		2,514,704		231,003
Oppenheimer Global Fund/VA, Non-Service Shares*		1,037,262		445,504		121,531		1,361,235		49,031,677		632,409		3,152,809		1,438,198

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Notes to Portfolio of Investments (Unaudited) (Continued)

	Number of Shares Held as of 12/31/14		Purchases		Sales		Number of Shares Held as of 9/30/15		Value as of 9/30/15		Dividend Income		Realized Gains Distributions		Net Realized Gain (Loss)
Moderate Allocation Fund (Continued)
Oppenheimer Global Multi-Alternatives Fund/VA, Non-Service Shares*		10,946,823		6,847,137		-		17,793,960	$	174,202,865	$	-	$	-	$	-
Oppenheimer Global Strategic Income Fund/VA, Non-Service Shares*		9,723,403		178,384		9,901,787		-		-		902,621		-		(1,307,209	)
Oppenheimer International Growth Fund/VA, Non-Service Shares*		17,855,247		6,702,085		8,136,002		16,421,330		34,320,579		453,438		2,767,563		2,113,518
									$	2,270,469,926	$	28,738,533	$	130,754,133	$	42,985,357

* Fund advised by OFI Global Asset Management, Inc.

5. New Accounting Pronouncements

In May 2015, The Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update No. 2015-07, Fair Value Measurement (Topic 820): “Disclosures for Investments in Certain Entities That Calculate Net Asset Value per Share (or Its Equivalent)” (“ASU 2015-07”) to address the diversity in practice of how investments measured at net asset value with redemption dates in the future (including periodic redemption dates) are categorized within the fair value hierarchy. ASU 2015-07 is effective for interim and annual reporting periods in fiscal years that begin after December 15, 2015. Management is currently evaluating the implications of these changes and their impact to the 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.

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

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.

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 Official Committee 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.

7. Subsequent Events

Management has evaluated the events and transactions subsequent to September 30, 2015, through the date when the Portfolios of Investments were issued, and determined that there are no subsequent events or transactions that would require adjustments to or disclosures in the Funds’ Portfolios of Investments.

99

Item 2. Controls and Procedures.

(a) The Registrant’s Principal Executive Officer and Principal Financial Officer have concluded that the Registrant’s disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940, as amended (the “1940 Act”) (17 CFR 270.30a-3(c))), are effective, as of a date within 90 days of the filing date of this Form N-Q, to provide reasonable assurance that the information required to be disclosed by the Registrant on Form N-Q is recorded, processed, summarized, and reported within the time periods specified in the SEC’s rules and forms, based on their evaluation of these disclosure controls and procedures required by Rule 30a-3(b) under the 1940 Act (17 CFR 270.30a-3(b)) and Rules 13a-15(b) or 15d-15(b) under the Securities Exchange Act of 1934 (17 CFR 240.13a-15(b) or 240.15d-15(b)).

(b) There were no changes in the Registrant’s internal control over financial reporting (as defined in Rule 30a-3(d) under the 1940 Act (17 CFR 270.30a-3(d))) that occurred during the Registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the Registrant’s internal control over financial reporting.

Item 3. Exhibits.

(a) Certifications of the Principal Executive Officer and Principal Financial Officer of the Registrant as required by
Rule 30a-2(a) under the 1940 Act (17 CFR 270.30a-2(a)) are attached hereto as Exhibit 99CERT.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

(Registrant)   MML Series Investment Fund

By	/s/ Jeffrey M. Dube
	Jeffrey M. Dube, President and Principal Executive Officer
Date	11/20/15

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

By	/s/ Jeffrey M. Dube
	Jeffrey M. Dube, President and Principal Executive Officer
Date	11/20/15
By	/s/ Nicholas H. Palmerino
	Nicholas H. Palmerino, Treasurer and Principal Financial Officer
Date	11/20/15