JNL Investors Series Trust N-CSR Certified annual shareholder report (management investment company)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM N-CSR

CERTIFIED SHAREHOLDER REPORT OF REGISTERED

MANAGEMENT INVESTMENT COMPANIES

Investment Company Act file number: 811-10041

JNL Investors Series Trust

(Exact name of registrant as specified in charter)

1 Corporate Way, Lansing, Michigan 48951

(Address of principal executive offices) (Zip code)

225 West Wacker Drive, Suite 1200, Chicago, Illinois 60606

(Mailing address)

Steven J. Fredricks

Jackson National Asset Management, LLC

225 West Wacker Drive, Suite 1200

Chicago, Illinois 60606

(Name and address of agent for service)

Registrant’s telephone number, including area code: (312) 338-5800

Date of fiscal year end: December 31

Date of reporting period: December 31, 2011

Form N-CSR is to be used by management investment companies to file reports with the Commission not later than 10 days after the transmission to stockholders of any report that is required to be transmitted to stockholders under Rule 30e-1 under the Investment Company Act of 1940 (17 CFR 270.30e-1). The Commission may use the information provided on Form N-CSR in its regulatory, disclosure review, inspection, and policymaking roles.

A registrant is required to disclose the information specified by Form N-CSR, and the Commission will make this information public. A registrant is not required to respond to the collection of information contained in Form N-CSR unless the Form displays a currently valid Office of Management and Budget (“OMB”) control number. Please direct comments concerning the accuracy of the information collection burden estimate and any suggestions for reducing the burden to Secretary, Securities and Exchange Commission, 450 Fifth Street, NW, Washington, DC 20549-0609. The OMB has reviewed this collection of information under the clearance requirements of 44 U.S.C. §3507.

Item 1. Report to Shareholders.

Annual Report

December 31, 2011

• JNL^® Investors Series Trust

JNL PPM America Fund PPM America, Inc.

Market Summary: The fixed income markets performed well for the two month period ended December 31, 2011. Long term interest rates declined during the period with yields on 5- and 30-year Treasuries falling by 0.13% and 0.24%, respectively. Long term interest rates declined because of continued concerns over the European debt crisis as well as the U.S. Federal Reserve’s (“Fed”) “Operation Twist.” Operation Twist entails the Fed selling $400 billion of short term Treasuries through June 2012 and using the proceeds to purchase longer maturity Treasuries.

For the period, the Barclays Capital U.S. Aggregate Bond Index returned 1.01%. Investment grade corporate bonds underperformed Treasuries

but the performance was quite choppy with weak relative performance in November but a partial recovery in December. Most of the relative performance of corporate bonds was driven by the European crisis as the crisis heated up in November but waned in December. Commercial mortgage backed securities (“CMBS”) outperformed Treasuries based on strong demand and a bottoming of the commercial real estate market while federal agency mortgage backed securities (“MBS”) returned approximately the same as Treasuries. High yield bonds underperformed investment grade bonds as the Barclays Capital High Yield Index returned 0.44% for the period.

JNL/PPM America Total Return Fund

Sector Weightings*:
Financials	22.7%
U.S. Government Agency MBS	19.3
Government Securities	7.2
Non-U.S. Government Agency ABS	6.8
Energy	6.0
Health Care	4.0
Materials	3.9
Consumer Discretionary	3.5
Utilities	2.6
Telecommunication Services	2.0
Industrials	1.0
Consumer Staples	0.9
Information Technology	0.7
Trust Preferred	0.3
Short Term Investments	19.6
Total Investments	100.0%
*   Total Investments at October 31,2011

Portfolio Manager Commentary: For the period from November 1, 2011 to December 31, 2011, the JNL/PPM America Total Return Fund underperformed

its benchmark by posting a return of 0.87% for Class A shares compared to 1.01% for the Barclays Capital U.S. Aggregate Bond Index.

The modest underperformance by the Fund can be attributed to the Funds operating and management expenses and also to an unfavorable sector allocation, primarily the Fund’s overweight in corporate bonds and underweight in Treasuries and federal agency MBS. Both investment grade and high yield corporate bonds underperformed higher quality bonds as the European crisis made investors risk averse. The Fund’s overweight in CMBS helped performance as CMBS was the best performing sector in the investment grade market. Finally, the Fund’s yield curve positioning hurt performance as the Fund was underweight longer term maturities

when the Fed announced “Operation Twist” and long term rates fell sharply.

We expect the economy to grow modestly during 2012 but economic growth will be choppy. Following a pattern that started at the end of the recession, there are likely to be quarters when the economy looks quite strong and other quarters where the economy looks like it may be close to another recession. This should lead to growth in the 2% range for 2012. The debt problems in Europe, uncertainty over growth in China and the U.S. presidential election are likely to result in continued market volatility. We believe inter-est rates will remain at fairly low levels based on modest economic growth, the Fed’s quantitative easing and low inflation. We expect to maintain the Fund’s current sector positioning with an overweight in both corporate bonds and CMBS. Current yields on both sectors are very attractive on a long term basis versus Treasuries and at least partially incorporate the risk of a recession. If the economy avoids a recession, the returns on both sectors could be quite strong relative to Treasuries.

JNL/PPM America Total Return Fund (Class A)

Past performance is not predictive of future performance. Investment return and principal value will fluctuate so that an investor’s shares, when redeemed, may be worth more or less than their original cost. Performance numbers are net of all Fund operating expenses.

JNL Investors Series Trust

Schedules of Investments

December 31, 2011

	Shares/Par		Value
JNL/PPM America Total Return Fund
NON-U.S. GOVERNMENT AGENCY ASSET-BACKED SECURITIES - 8.0%
American Airlines Pass-Through Trust, 10.38%, 07/02/19	$	168,012	$	178,513
Banc of America Commercial Mortgage Inc. REMIC
5.89%, 07/10/44 (a)		3,000,000		3,288,858
5.72%, 02/10/51 (a)		800,000		875,388
Bear Stearns Commercial Mortgage Securities REMIC
5.74%, 09/11/42 (a)		500,000		575,208
5.69%, 06/11/50 (a)		300,000		330,335
Capital One Multi-Asset Execution Trust, 4.90%, 12/15/17		2,500,000		2,710,027
Countrywide Asset-Backed Certificates REMIC,
4.95%, 04/25/33 (a)		90,608		89,727
DBUBS Mortgage Trust REMIC, 3.74%, 11/10/46 (b)		3,341,019		3,499,260
Delta Air Lines Pass-Through Trust - Class A
6.20%, 07/02/18		1,116		1,188
4.95%, 05/23/19		238,304		241,283
Ford Credit Auto Owner Trust, 1.65%, 05/15/16		3,345,000		3,386,702
Greenwich Capital Commercial Funding Corp. REMIC, 5.44%, 03/10/39		300,000		324,716
JPMorgan Chase Commercial Mortgage Securities Corp. REMIC
5.44%, 06/12/47		3,000,000		3,215,436
5.74%, 02/12/49 (a)		250,000		270,486
LB-UBS Commercial Mortgage Trust REMIC, 5.43%, 02/15/40		300,000		319,998
Morgan Stanley Capital I REMIC, 5.88%, 06/11/49 (a)		2,750,000		3,023,149
Morgan Stanley Re-REMIC Trust, 5.79%, 08/12/45 (a) (b)		1,500,000		1,681,710
United Air Lines Inc., 9.75%, 01/15/17		88,934		96,049
Total Non-U.S. Government Agency Asset- Backed Securities (cost $23,495,901)				24,108,033
CORPORATE BONDS AND NOTES - 55.4%
CONSUMER DISCRETIONARY - 4.1%
Comcast Corp., 6.40%, 03/01/40		700,000		870,143
Daimler Finance North America LLC, 3.88%, 09/15/21 (b)		1,500,000		1,507,413
Delphi Corp.
5.88%, 05/15/19 (b)		800,000		816,000
6.13%, 05/15/21 (b)		185,000		190,550
Meritage Homes Corp., 6.25%, 03/15/15		100,000		98,500
MGM Resorts International
7.63%, 01/15/17		1,000,000		952,500
9.00%, 03/15/20		1,100,000		1,218,250
NAI Entertainment Holdings LLC, 8.25%, 12/15/17 (b)		100,000		105,750
News America Inc., 6.15%, 02/15/41		760,000		875,969
O’Reilly Automotive Inc., 4.63%, 09/15/21		100,000		104,852
Shea Homes LP, 8.63%, 05/15/19 (b)		1,127,000		1,053,745
TRW Automotive Inc., 7.25%, 03/15/17 (b)		100,000		107,000
Univision Communications Inc., 7.88%, 11/01/20 (b)		1,200,000		1,218,000
Virgin Media Finance Plc, 8.38%, 10/15/19		100,000		109,750
Virgin Media Secured Finance Plc, 6.50%, 01/15/18		100,000		106,250
Volvo AB, 5.95%, 04/01/15 (b)		177,000		188,003
WPP Finance Co. Ltd., 4.75%, 11/21/21 (b)		1,100,000		1,091,986
Wynn Las Vegas LLC, 7.75%, 08/15/20		1,600,000		1,776,000

	Shares/Par		Value
Yonkers Racing Corp, 11.38%, 07/15/16 (b)		100,000		103,000
				12,493,661
CONSUMER STAPLES - 1.1%
Altria Group Inc., 9.95%, 11/10/38 (c)		500,000		760,491
Bunge Ltd. Finance Co., 8.50%, 06/15/19 (c)		100,000		121,724
Lorillard Tobacco Co.
3.50%, 08/04/16		100,000		101,148
7.00%, 08/04/41		600,000		630,667
Reynolds Group Issuer Inc., 7.88%, 08/15/19 (b)		1,500,000		1,567,500
Smithfield Foods Inc., 10.00%, 07/15/14		100,000		116,250
				3,297,780
ENERGY - 7.1%
Anadarko Petroleum Corp., 6.38%, 09/15/17		1,350,000		1,564,831
Arch Coal Inc., 7.25%, 10/01/20		1,000,000		1,022,500
BG Energy Capital Plc, 4.00%, 10/15/21 (b)		2,200,000		2,267,690
BP Capital Markets Plc
3.13%, 10/01/15		4,200,000		4,399,177
2.25%, 11/01/16		300,000		301,913
Canadian Natural Resources Ltd., 6.25%, 03/15/38		600,000		759,038
Chesapeake Oilfield Operating LLC, 6.63%, 11/15/19 (b)		1,175,000		1,222,000
Dolphin Energy Ltd., 5.89%, 06/15/19 (b)		172,795		187,482
El Paso Pipeline Partners Operating Co. LLC, 7.50%, 11/15/40		150,000		174,591
Energen Corp., 4.63%, 09/01/21		258,000		256,036
Ensco Plc
3.25%, 03/15/16		300,000		306,043
4.70%, 03/15/21		1,600,000		1,666,250
Enterprise Products Operating LLC, 5.95%, 02/01/41		700,000		784,598
Nabors Industries Inc., 5.00%, 09/15/20		90,000		91,755
Petrobras International Finance Co.
3.88%, 01/27/16		1,000,000		1,030,211
5.38%, 01/27/21		1,025,000		1,076,866
6.75%, 01/27/41		325,000		373,468
Pride International Inc., 6.88%, 08/15/20		75,000		87,932
SESI LLC, 7.13%, 12/15/21 (b)		2,052,000		2,154,600
Transocean Inc.
6.38%, 12/15/21		1,224,000		1,300,969
7.35%, 12/15/41		100,000		111,083
Weatherford International Ltd. Bermuda, 6.75%, 09/15/40		112,000		127,050
WPX Energy Inc., 6.00%, 01/15/22 (b)		177,000		181,204
				21,447,287
FINANCIALS - 26.2%
AIG SunAmerica Global Financing X, 6.90%, 03/15/32 (b)		175,000		185,352
American Express Credit Corp., 2.80%, 09/19/16		3,000,000		3,014,700
American International Group Inc., 8.25%, 08/15/18		1,600,000		1,693,602
AON Corp., 8.21%, 01/01/27		100,000		116,555
Bank of America Corp.
8.00% (callable at 100 beginning 01/30/18) (a) (d)		125,000		111,930
3.75%, 07/12/16		335,000		310,183
6.50%, 08/01/16		500,000		503,535
5.63%, 10/14/16		2,150,000		2,062,667
7.63%, 06/01/19		1,400,000		1,447,904
Bank of America NA, 6.10%, 06/15/17		2,450,000		2,305,222
Berkshire Hathaway Inc., 3.75%, 08/15/21		1,000,000		1,039,046
Capital One Capital VI, 8.88%, 05/15/40		190,000		197,199
Caterpillar Financial Services Corp., 1.13%, 12/15/14		4,500,000		4,505,593

See accompanying Notes to the Financial Statements.

JNL Investors Series Trust

Schedules of Investments

December 31, 2011

	Shares/Par		Value
Chubb Corp., 6.38%, 03/29/67 (a)		100,000		98,750
Citigroup Inc., 6.00%, 08/15/17		2,205,000		2,310,756
Corp. Andina de Fomento, 3.75%, 01/15/16		3,500,000		3,553,928
Credit Suisse AG
2.60%, 05/27/16 (b)		1,750,000		1,773,431
5.40%, 01/14/20		1,125,000		1,061,061
Discover Bank, 7.00%, 04/15/20		555,000		580,679
Duke Realty LP, 8.25%, 08/15/19		100,000		117,502
Ford Motor Credit Co. LLC, 5.00%, 05/15/18		3,317,000		3,325,601
FUEL Trust, 3.98%, 06/15/16 (b)		2,764,000		2,763,627
General Electric Capital Corp.
4.63%, 01/07/21		1,200,000		1,244,942
4.65%, 10/17/21		2,775,000		2,896,176
Goldman Sachs Group Inc.
5.95%, 01/18/18		1,750,000		1,792,387
5.25%, 07/27/21		1,825,000		1,780,361
6.75%, 10/01/37		650,000		604,833
HSBC Bank Plc, 1.63%, 07/07/14 (b)		2,500,000		2,470,997
HSBC Finance Corp., 6.68%, 01/15/21		100,000		103,440
HSBC Holdings Plc, 4.88%, 01/14/22		2,150,000		2,272,320
HSBC USA Inc, 9.50%, 04/15/14		145,000		159,596
Hyundai Capital America, 3.75%, 04/06/16 (b)		170,000		169,476
Hyundai Capital Services Inc.
6.00%, 05/05/15 (b)		100,000		107,305
4.38%, 07/27/16 (b)		200,000		203,972
4.00%, 06/08/17 (b)		450,000		445,273
International Lease Finance Corp.
6.50%, 09/01/14 (b)		150,000		153,375
6.75%, 09/01/16 (b)		1,100,000		1,127,500
7.13%, 09/01/18 (b)		1,000,000		1,035,000
6.25%, 05/15/19		124,000		114,550
8.63%, 01/15/22		1,500,000		1,517,411
IPIC GMTN Ltd., 5.50%, 03/01/22 (b)		1,000,000		1,000,000
JPMorgan Chase & Co.
7.90% (callable at 100 beginning 04/30/18) (a) (d)		100,000		106,469
3.40%, 06/24/15		3,200,000		3,261,981
5.40%, 01/06/42		1,139,000		1,188,643
JPMorgan Chase Bank NA, 5.88%, 06/13/16		1,500,000		1,623,650
Korea Development Bank, 3.88%, 05/04/17		1,756,000		1,734,022
Macquarie Group Ltd., 7.30%, 08/01/14 (b)		150,000		156,165
MetLife Global Funding I Inc., 2.50%, 09/29/15 (b)		3,000,000		3,017,235
MetLife Inc., 4.75%, 02/08/21		1,000,000		1,081,793
Morgan Stanley
3.80%, 04/29/16		2,157,000		1,987,274
5.50%, 07/28/21		1,494,000		1,381,405
Nordea Bank AB, 4.88%, 05/13/21 (b)		1,300,000		1,098,770
Pricoa Global Funding I, 5.30%, 09/27/13 (b)		255,000		269,679
Prudential Financial Inc., 6.20%, 11/15/40		1,200,000		1,255,686
Santander Holdings USA Inc., 4.63%, 04/19/16		1,550,000		1,488,479
SLM Corp., 6.25%, 01/25/16		140,000		136,147
Springleaf Finance Corp. Term Loan, 5.50%, 05/06/17 (a)		2,750,000		2,388,485
Swiss Re Solutions Holding Corp., 7.75%, 06/15/30		200,000		250,283
UBS AG, 5.88%, 07/15/16		102,000		101,586
Wachovia Bank NA, 4.88%, 02/01/15		2,190,000		2,320,430
Wells Fargo & Co.
7.98% (callable at 100 beginning 03/15/18) (a) (d)		1,200,000		1,285,500
2.63%, 12/15/16		550,000		549,665
				78,961,084
HEALTH CARE - 4.8%
Amgen Inc., 5.65%, 06/15/42		625,000		679,472

	Shares/Par		Value
Aristotle Holding Inc.
2.75%, 11/21/14 (b)		2,400,000		2,429,098
4.75%, 11/15/21 (b)		975,000		1,008,902
Baxter International Inc., 1.85%, 01/15/17		5,143,000		5,182,971
Cigna Corp., 5.38%, 02/15/42		500,000		497,126
Gilead Sciences Inc.
4.40%, 12/01/21		1,429,000		1,512,871
5.65%, 12/01/41		650,000		719,656
HCA Inc., 6.50%, 02/15/20		2,150,000		2,230,625
Memorial Sloan-Kettering Cancer Center, 5.00%, 07/01/42		172,000		180,314
				14,441,035
INDUSTRIALS - 1.2%
Aircastle Ltd., 9.75%, 08/01/18 (b)		2,000,000		2,085,000
Bombardier Inc., 7.75%, 03/15/20 (b)		1,228,000		1,338,520
Owens Corning, 9.00%, 06/15/19		100,000		119,305
				3,542,825
INFORMATION TECHNOLOGY - 0.9%
Hewlett-Packard Co., 4.65%, 12/09/21		1,300,000		1,371,604
Seagate Technology Plc, 7.00%, 11/01/21 (b)		1,200,000		1,230,000
				2,601,604
MATERIALS - 4.6%
Barrick North America Finance LLC, 4.40%, 05/30/21		1,650,000		1,786,943
Braskem Finance Ltd., 7.00%, 05/07/20 (b)		200,000		213,500
Cargill Inc., 7.35%, 03/06/19 (b)		100,000		126,968
Cemex SAB de CV, 9.00%, 01/11/18 (b)		1,025,000		817,437
Dow Chemical Co., 4.13%, 11/15/21		191,000		195,913
Ecolab Inc., 5.50%, 12/08/41		117,000		129,653
FMG Resources August 2006 Pty Ltd., 8.25%, 11/01/19 (b)		1,450,000		1,475,375
Georgia-Pacific LLC, 5.40%, 11/01/20 (b)		1,900,000		2,104,531
International Paper Co., 6.00%, 11/15/41		775,000		841,350
Sealed Air Corp., 8.38%, 09/15/21 (b)		1,350,000		1,491,750
Teck Resources Ltd., 10.75%, 05/15/19		3,830,000		4,672,600
				13,856,020
TELECOMMUNICATION SERVICES - 2.4%
AT&T Inc., 5.55%, 08/15/41		800,000		941,934
Crown Castle Towers LLC, 4.88%, 08/15/20 (b)		1,450,000		1,481,951
France Telecom SA, 4.13%, 09/14/21		150,000		151,211
Inmarsat Finance Plc, 7.38%, 12/01/17 (b)		150,000		156,750
Telecom Italia Capital SA, 6.18%, 06/18/14		150,000		144,280
Telefonica Moviles Chile SA, 2.88%, 11/09/15 (b)		100,000		98,694
Verizon Communications Inc.
2.00%, 11/01/16		4,000,000		4,011,332
3.50%, 11/01/21		190,000		197,813
				7,183,965
UTILITIES - 3.0%
Abu Dhabi National Energy Co., 4.75%, 09/15/14 (b)		175,000		182,438
AES Corp., 7.38%, 07/01/21 (b)		1,300,000		1,400,750
Duquesne Light Holdings Inc., 6.40%, 09/15/20 (b)		630,000		669,924
GenOn Energy Term Loan B, 6.00%, 09/20/17 (a)		99,000		98,575
MidAmerican Energy Co., 6.13%, 04/01/36		939,000		1,121,494
Oglethorpe Power Corp., 5.25%, 09/01/50		104,000		118,981
Oncor Electric Delivery Co., 6.80%, 09/01/18		2,250,000		2,736,223
PPL WEM Holdings Plc
3.90%, 05/01/16 (b)		200,000		200,481
5.38%, 05/01/21 (b)		1,210,000		1,268,866

See accompanying Notes to the Financial Statements.

JNL Investors Series Trust

Schedules of Investments

December 31, 2011

	Shares/Par		Value
Puget Energy Inc., 6.00%, 09/01/21		1,350,000		1,396,872
				9,194,604
Total Corporate Bonds and Notes (cost $165,173,549)				167,019,865
GOVERNMENT AND AGENCY OBLIGATIONS - 31.3%
GOVERNMENT SECURITIES - 8.5%
Municipals - 0.0%
Ohio State University 2008A General Receipt, 4.80%, 06/01/2111		100,000		103,529
Sovereign - 0.0%
Republic of Poland, 5.00%, 03/23/22		100,000		100,500
U.S. Treasury Securities - 8.5%
U.S. Treasury Bond
4.38%, 05/15/41		125,000		162,871
3.75%, 08/15/41		7,489,000		8,807,768
U.S. Treasury Note
0.88%, 11/30/16		595,000		596,813
2.00%, 11/15/21		15,785,000		15,965,044
				25,532,496
U.S. GOVERNMENT AGENCY MORTGAGE-BACKED SECURITIES - 22.8%
Federal Home Loan Mortgage Corp. - 7.7%
Federal Home Loan Mortgage Corp.
4.00%, 05/01/26 - 02/01/41		1,402,126		1,473,253
3.50%, 01/15/27, TBA (e)		1,044,000		1,088,207
6.00%, 09/01/37		505,072		555,518
5.00%, 03/01/38, TBA (e)		3,623,399		3,899,811
5.50%, 07/01/38		487,893		530,067
5.00%, 09/01/38 - 08/01/40		1,110,181		1,194,060
4.50%, 10/01/39, TBA (e)		3,941,092		4,179,762
5.50%, 01/15/41, TBA (e)		4,487,000		4,868,395
3.50%, 02/15/41, TBA (e)		534,000		546,599
4.00%, 02/15/41, TBA (e)		2,390,000		2,499,791
6.00%, 01/15/42, TBA (e)		2,086,000		2,290,689
				23,126,152
Federal National Mortgage Association - 10.0%
Federal National Mortgage Association
3.50%, 01/15/26, TBA (e)		1,031,000		1,078,039
3.00%, 02/15/26, TBA (e)		1,559,000		1,605,039
4.50%, 02/15/26, TBA (e)		4,060,000		4,322,631
4.00%, 03/01/26		1,281,000		1,353,021
5.50%, 02/01/37		737,815		804,936
5.50%, 01/15/41, TBA (e)		1,500,000		1,633,359
6.00%, 01/15/41, TBA (e)		5,359,000		5,900,762
3.50%, 02/15/41, TBA (e)		1,870,000		1,917,919
4.00%, 02/15/41, TBA (e)		4,277,000		4,481,494
4.50%, 02/15/41, TBA (e)		4,070,000		4,321,831
5.00%, 02/15/41, TBA (e)		2,414,000		2,602,594
				30,021,625
Government National Mortgage Association - 5.1%
Government National Mortgage Association
5.00%, 02/01/35, TBA (e)		4,738,000		5,239,191
4.00%, 01/15/41, TBA (e)		3,118,000		3,344,542
4.50%, 01/15/41, TBA (e)		4,313,000		4,699,148
5.50%, 01/15/41, TBA (e)		679,000		762,072
4.50%, 07/15/41		1,375,000		1,499,910
				15,544,863
Total Government and Agency Obligations (cost $93,791,509)				94,429,165
COMMON STOCKS - 0.0%
FINANCIALS - 0.0%
Citigroup Inc.		1,226		32,256
Total Common Stocks (cost $29,128)				32,256

	Shares/Par		Value
TRUST PREFERREDS - 0.3%
Citigroup Capital XIII, 7.88%, (callable at 25 beginning 10/30/15)		35,000		912,100
Total Trust Preferreds (cost $906,360)				912,100
SHORT TERM INVESTMENTS - 23.2%
Investment Company - 23.2%
JNL Money Market Fund, 0.02% (f) (g)		69,859,053		69,859,053
Total Short Term Investments (cost $69,859,053)				69,859,053
Total Investments - 118.2% (cost $353,255,500)				356,360,472
Other Assets and Liabilities, Net - (18.2%) (h)				(54,769,478	)
Total Net Assets - 100.0%			$	301,590,994

(a) Variable rate security. Rate stated was in effect as of December 31, 2011.

(b) Rule 144A or Section 4(2) liquid security. Rule 144A or Section 4(2) of the Securities Act of 1933, as amended, provides an exemption from the registration requirements for resale of this security to an institutional investor. The Sub-Adviser deemed this security to be liquid based on procedures approved by the Trust’s Board of Trustees (“Board”). As of December 31, 2011, the value of Rule 144A and Section 4(2) liquid securities was $54,900,985.

(c) The interest rate for this security is inversely affected by upgrades or downgrades to the credit rating of the issuer.

(d) Perpetual maturity security. Interest rate is fixed until the first call date and variable thereafter.

(e) Investment purchased on a delayed delivery basis. As of December 31, 2011, the total payable of investments purchased on a delayed delivery basis was $73,388,164.

(f) Investment in affiliate.

(g) Yield changes daily to reflect current market conditions. Rate was the quoted yield as of December 31, 2011.

(h) Cash is pledged as collateral for open futures contracts. As of December 31, 2011, total value of collateral was $493,425.

Abbreviations:

REMIC - Real Estate Mortgage Investment Conduit

TBA - To Be Announced (Securities purchased on a delayed delivery basis)

See accompanying Notes to the Financial Statements.

JNL Investors Series Trust

Schedules of Investments

December 31, 2011

JNL Money Market Fund
Sector Weightings:	Percentage of Total Investments
U.S. Government Agency Mortgage-Backed Securities	11.8%
Financials	9.8
Government Securities	8.0
Information Technology	0.3
Short Term Investments	70.1
Total Investments	100.0%

	Shares/Par		Value
JNL Money Market Fund
CORPORATE BONDS AND NOTES - 10.1%
FINANCIALS - 9.8%
Bank of America Corp.
0.31%, 01/17/12	$	13,000,000	$	13,000,000
3.13%, 06/15/12		22,019,000		22,307,485
Citigroup Funding Inc., 0.68%, 03/16/12 (a)		5,637,000		5,634,323
Citigroup Inc., 2.13%, 04/30/12		5,000,000		5,031,785
Commonwealth Bank of Australia, 2.40%, 01/12/12 (b)		13,000,000		13,008,468
Countrywide Financial Corp., 5.80%, 06/07/12		6,000,000		6,117,853
General Electric Capital Corp.
0.64%, 03/02/12 (a)		11,000,000		11,002,144
2.00%, 09/28/12		8,906,000		9,020,867
Goldman Sachs Group Inc.
6.60%, 01/15/12		13,429,000		13,458,903
0.62%, 02/06/12 (a)		12,105,000		12,105,026
3.25%, 06/15/12		16,354,000		16,577,804
John Deere Capital Corp., 2.88%, 06/19/12		13,688,000		13,855,751
JPMorgan Chase & Co.
4.50%, 01/15/12		5,000,000		5,007,817
2.20%, 06/15/12		11,397,000		11,498,468
State Street Corp., 2.15%, 04/30/12		6,625,000		6,667,805
Toyota Motor Credit Corp.
0.35%, 02/02/12 (a)		14,750,000		14,750,000
0.80%, 01/15/13 (a)		13,800,000		13,800,000
Wells Fargo & Co., 0.51%, 01/24/12 (a)		6,700,000		6,700,379
				199,544,878
INFORMATION TECHNOLOGY - 0.3%
Hewlett-Packard Co., 4.25%, 02/24/12		6,500,000		6,536,077
Total Corporate Bonds and Notes (cost $206,080,955)				206,080,955
GOVERNMENT AND AGENCY OBLIGATIONS - 19.8%
GOVERNMENT SECURITIES - 8.0%
Federal Home Loan Mortgage Corp. - 5.2% (c)
Federal Home Loan Mortgage Corp.
0.35%, 07/25/12		10,000,000		9,999,324
0.17%, 09/19/12 (a)		40,000,000		39,994,214
0.21%, 10/12/12 (a)		41,570,000		41,587,250
4.50%, 01/15/13		13,637,000		14,242,709
				105,823,497
U.S. Treasury Securities - 2.8%
U.S. Treasury Note
1.00%, 04/30/12		20,000,000		20,052,546
1.38%, 11/15/12		37,000,000		37,384,267
				57,436,813
U.S. GOVERNMENT AGENCY MORTGAGE-BACKED SECURITIES - 11.8%
Federal Farm Credit Bank - 1.2%
Federal Farm Credit Bank
0.15%, 11/09/12 (a)		15,000,000		14,998,846
0.21%, 11/26/12 (a)		3,500,000		3,501,523

	Shares/Par		Value
0.13%, 12/05/12 (a)		6,135,000		6,133,274
				24,633,643
Federal Home Loan Mortgage Corp. - 9.3%
Federal Home Loan Mortgage Corp.
0.22%, 05/14/12		17,000,000		17,002,635
0.14%, 06/06/12		82,000,000		81,984,822
0.20%, 11/14/12 - 11/26/12		25,850,000		25,850,695
0.21%, 11/14/12 - 01/03/13		45,000,000		45,005,072
0.38%, 12/20/12		5,000,000		5,000,000
0.21%, 01/22/13 (a)		15,750,000		15,756,757
				190,599,981
Federal National Mortgage Association - 1.3%
Federal National Mortgage Association
0.27%, 12/03/12 (a)		6,000,000		6,005,035
0.24%, 01/10/13 (a)		20,000,000		20,019,746
				26,024,781
Total Government and Agency Obligations (cost $404,518,715)				404,518,715
SHORT TERM INVESTMENTS - 70.0%
Certificates of Deposit - 14.9%
Bank of Montreal
0.34%, 06/13/12		14,000,000		14,000,000
0.60%, 01/04/13 (a)		14,000,000		14,000,000
Bank of Nova Scotia
0.42%, 01/25/12 (a)		11,500,000		11,500,000
0.31%, 01/27/12		15,000,000		15,000,000
Barclays Bank Plc
0.81%, 02/16/12		4,000,000		4,000,000
0.65%, 05/03/12 (a)		7,500,000		7,500,000
BNP Paribas SA, 0.76%, 03/01/12		10,000,000		10,000,000
Branch Banking, 0.20%, 03/19/12		11,000,000		11,000,000
Canadian Imperial Bank of Commerce
0.61%, 01/19/12 (a)		8,000,000		8,000,685
0.37%, 04/30/12 (a)		8,600,000		8,600,000
0.63%, 05/04/12 (a)		15,000,000		15,008,478
0.41%, 08/09/12 (a)		8,700,000		8,700,000
Citibank
0.14%, 01/20/12		13,000,000		13,000,000
0.23%, 02/21/12		13,000,000		13,000,000
DnB NOR Bank ASA, 0.39%, 03/30/12 (a)		16,000,000		16,000,000
Rabobank Nederland NV, 0.34%, 02/10/12 (a)		8,000,000		8,000,000
Royal Bank of Canada
0.30%, 02/15/12		13,000,000		13,000,000
0.35%, 03/02/12 (a)		16,500,000		16,500,000
0.36%, 07/11/12 (a)		8,600,000		8,600,000
Standard Chartered Bank
0.50%, 03/02/12		17,000,000		17,000,000
0.63%, 05/08/12		10,000,000		10,000,000
Toronto-Dominion Bank NY
0.21%, 01/03/12		20,000,000		20,000,000
0.40%, 04/27/12		7,000,000		7,000,000
0.32%, 04/30/12		12,900,000		12,900,000
UBS AG, 0.62%, 03/02/12		21,300,000		21,300,000
				303,609,163
Commercial Paper - 14.0%
Amsterdam Funding Corp.
0.32%, 01/10/12		12,500,000		12,499,000
0.44%, 02/06/12 (b)		12,500,000		12,494,500
CAFCO LLC, 0.32%, 01/06/12 (b)		28,000,000		27,998,756
Chariot Funding LLC
0.19%, 01/25/12 (b)		2,300,000		2,299,709
0.18%, 02/17/12 (b)		23,000,000		22,994,595
Coca-Cola Co.
0.17%, 02/01/12 (b)		9,000,000		8,998,682
0.15%, 02/13/12 (b)		10,000,000		9,998,208
0.21%, 03/01/12 (b)		9,000,000		8,996,850

See accompanying Notes to the Financial Statements.

JNL Investors Series Trust

Schedules of Investments

December 31, 2011

	Shares/Par			Value
CRC Funding LLC
0.19%, 01/18/12		12,000,000			11,998,923
0.36%, 03/08/12		13,500,000			13,490,955
Fairway Finance Corp.
0.22%, 01/06/12 (b)		3,400,000			3,399,896
0.22%, 01/12/12 (b)		8,100,000			8,099,455
0.22%, 01/18/12 (b)		5,300,000			5,299,449
General Electric Capital Corp., 0.23%, 02/03/12		15,500,000			15,496,732
Jupiter Securitization Corp.
0.22%, 01/05/12 (b)		13,100,000			13,099,680
0.16%, 02/21/12 (b)		12,400,000			12,397,189
Market Street Funding LLC, 0.15%, 01/13/12 (b)		25,300,000			25,298,735
National Rural Utilities Cooperative Finance Corp.
0.12%, 01/17/12		8,800,000			8,799,531
0.08%, 01/19/12		9,500,000	��		9,499,620
Old Line Funding LLC, 0.22%, 01/04/12 (b)		12,292,000			12,291,775
Westpac Banking Corp., 0.25%, 03/21/12 (b)		12,750,000			12,742,917
Windmill Funding LLC
0.04%, 01/04/12 (b)		14,800,000			14,799,507
0.42%, 01/17/12 (b)		12,500,000			12,497,667
					285,492,331
Federal National Mortgage Association - 0.4%
Federal National Mortgage Association, 0.03%, 01/03/12		9,500,000			9,499,984
Investment Company - 0.0%
JPMorgan Prime Money Market Fund, 0.02% (d)		8,536			8,536
Repurchase Agreements - 40.7%
Repurchase Agreement with Bank of America NA, 0.04 % (Collateralized by $102,200,106 Government National Mortgage Association, 4.50% - 6.00%, due 09/20/38 – 08/20/41, value $113,434,447 and $68,609,442 Federal National Mortgage Association, 5.00%, due 03/01/41, value $74,551,553) acquired on 12/30/11, due 01/03/12 at $184,300,819	$	184,300,000			184,300,000
Repurchase Agreement with Barclays Bank Plc, 0.01% (Collateralized by $8,204,200 U.S. Treasury Bond, 5.38%, due 02/15/31, value $11,832,082) acquired on 12/30/11, due 01/03/12 at $11,600,013		11,600,000			11,600,000
Repurchase Agreement with Credit Suisse International, 0.23% (Collateralized by $32,575,752 Federal National Mortgage Association, 4.50% - 6.00%, due 09/01/18 - 07/01/39, value $35,702,342) acquired on 12/30/11, due 01/18/12 at $35,004,249 (e)		35,000,000			35,000,000
Repurchase Agreement with Deutsche Bank AG, 0.05% (Collateralized by $58,701,674 Federal National Mortgage Association, 5.00% - 6.00%, due 04/01/38 – 01/01/39, value $64,354,051) acquired on 12/29/11, due 01/05/12 at $63,000,613		63,000,000			63,000,000
Repurchase Agreement with Deutsche Bank AG, 0.06% (Collateralized by $129,299,294 Federal National Mortgage Association, 7.00%, due 08/01/38 – 10/01/38, value $147,798,000) acquired on 12/30/11, due 01/03/12 at $144,900,966		144,900,000			144,900,000

	Shares/Par		Value
Repurchase Agreement with Goldman Sachs and Co., 0.09% (Collateralized by $60,229,948 Government National Mortgage Association, 4.00% - 5.50%, due 10/15/39 - 11/20/41, value $66,300,001) acquired on 12/28/11, due 01/04/12 at $65,001,138		65,000,000		65,000,000
Repurchase Agreement with Goldman Sachs and Co., 0.09% (Collateralized by $69,637,337 Government National Mortgage Association, 4.50% - 6.50%, due 09/15/32 – 12/20/41, value $79,560,000) acquired on 12/29/11, due 01/05/12 at $78,001,365		78,000,000		78,000,000
Repurchase Agreement with Goldman Sachs and Co., 0.10% (Collateralized by $43,908,737 Government National Mortgage Association, 4.00% - 6.50%, due 01/15/33 - 09/15/41, value $48,960,630) acquired on 12/27/11, due 01/03/12 at $48,000,933		48,000,000		48,000,000
Repurchase Agreement with Goldman Sachs and Co., 0.21% (Collateralized by $4,507,882 Government National Mortgage Association, 5.50%, due 04/20/35 - 01/15/37, value $5,100,001) acquired on 12/02/11, due 01/05/12 at $5,000,992		5,000,000		5,000,000
Repurchase Agreement with Goldman Sachs and Co., 0.22% (Collateralized by $36,354,588 Government National Mortgage Association, 4.00% - 6.00%, due 01/15/33 - 11/15/41, value $40,800,000) acquired on 11/28/11, due 01/03/12 at $40,008,800		40,000,000		40,000,000
Repurchase Agreement with HSBC Bank NA, 0.00% (Collateralized by $51,312,800 U.S. Treasury Bond, 4.50% - 5.50%, due 08/15/28 - 08/15/39, value $72,421,559) acquired on 12/30/11, due 01/03/12 at $71,000,000		71,000,000		71,000,000
Repurchase Agreement with HSBC Bank NA, 0.04% (Collateralized by $33,340,000 U.S. Treasury Bond, 6.25%, due 05/15/20, value $51,715,896) acquired on 12/30/11, due 01/03/12 at $50,700,225		50,700,000		50,700,000
Repurchase Agreement with UBS AG, 0.04% (Collateralized by $33,321,409 Federal National Mortgage Association, 4.00%, due 12/1/41, value $35,118,816) acquired on 12/30/11, due 01/03/12 at $33,400,148		33,400,000		33,400,000
				829,900,000
Total Short Term Investments (cost $1,428,510,014)				1,428,510,014
Total Investments - 99.9% (cost $2,039,109,684)				2,039,109,684
Other Assets and Liabilities, Net - 0.1%				1,392,484
Total Net Assets - 100.0%			$	2,040,502,168

(a) Variable rate security. Rate stated was in effect as of December 31, 2011.

(b) Rule 144A or Section 4(2) liquid security. Rule 144A or Section 4(2) of the Securities Act of 1933, as amended, provides an exemption from the registration requirements for resale of this security to an institutional investor. The Sub-Adviser deemed this security to be liquid based on procedures approved by the Trust’s Board of Trustees (“Board”). As of December 31, 2011, the value of Rule 144A and Section 4(2) liquid securities was $226,716,038.

(c) Securities in this category are direct debt of the agency and not collateralized by mortgages.

(d) Yield changes daily to reflect current market conditions. Rate was the quoted yield as of December 31, 2011.

(e) Restricted security. Restricted as to public resale. Restricted security or Rule 144A or Section 4(2) of the Securities Act of 1933, as amended, provides an exemption from the registration requirements for resale of the security to an institutional investor. See Restricted Securities Note in the Notes to Schedules of Investments.

See accompanying Notes to the Financial Statements.

JNL Investors Series Trust

Notes to Schedules of Investments

December 31, 2011

Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 820, “Fair Value Measurements and Disclosure” - This standard establishes a single authoritative definition of fair value, sets out a framework for measuring fair value and requires additional disclosures about fair value measurements. Various inputs are used in determining the value of a Fund’s investments under FASB ASC Topic 820 guidance. The inputs are summarized into three broad categories. Level 1 includes valuations based on quoted prices of identical securities in active markets including valuations for securities listed on a national or foreign stock exchange or investments in mutual funds. Level 2 includes valuations for which all significant inputs are observable, either directly or indirectly. Direct observable inputs include broker quotes, closing prices of similar securities in active markets, closing prices for identical or similar securities in non-active markets or corporate action or reorganization entitlement values. Indirect significant observable inputs include factors such as interest rates, yield curves, prepayment speeds or credit ratings. Level 2 includes valuations for fixed income securities priced by pricing services, broker quotes in active markets, securities subject to corporate actions or securities valued at amortized cost. Level 3 includes valuations based on inputs that are unobservable and significant to the fair value measurement including Jackson National Asset Management, LLC’s (“Adviser”) own assumptions in determining the fair value of the investment. Inputs used to determine the fair value of Level 3 securities include security specific inputs such as: credit quality, credit rating spreads, issuer news, trading characteristics, call features or maturity; or industry specific inputs such as: trading activity of similar markets or securities or changes in the security’s underlying index or comparable securities’ models. Level 3 valuations include securities that are priced based on single source broker quotes, where prices may be unavailable due to halted trading, restricted to resale due to market events, newly issued securities or securities for which reliable quotes are otherwise not available. There were no significant transfers between Level 1 and Level 2 during the period. There were no significant transfers into or out of Level 3 during the period. The inputs or methodology used for valuing securities are not necessarily an indication of the risk associated with investing in those securities. See Note 2 in the Notes to the Financial Statements for security valuation accounting policies.

The following table summarizes each Fund’s investments in securities and other financial instruments as of December 31, 2011 by valuation level.

	Assets as of December 31, 2011 by Level: Assets - Securities
	Level 1		Level 2		Level 3		Total
JNL/PPM America Total Return Fund
Non-U.S. Government Agency Asset-Backed Securities	$	—	$	24,108,033	$	—	$	24,108,033
Corporate Bonds and Notes		—		167,019,865		—		167,019,865
Government and Agency Obligations		—		94,429,165		—		94,429,165
Common Stocks		32,256		—		—		32,256
Trust Preferreds		912,100		—		—		912,100
Short Term Investments		69,859,053		—		—		69,859,053
Fund Total	$	70,803,409	$	285,557,063	$	—	$	356,360,472
JNL Money Market Fund
Corporate Bonds and Notes	$	—	$	206,080,955	$	—	$	206,080,955
Government and Agency Obligations		—		404,518,715		—		404,518,715
Short Term Investments		8,536		1,428,501,478		—		1,428,510,014
Fund Total	$	8,536	$	2,039,101,148	$	—	$	2,039,109,684

	Assets - Other Financial Instruments1								Liabilities - Other Financial Instruments1
	Level 1		Level 2		Level 3		Total		Level 1			Level 2		Level 3		Total
JNL/PPM America Total Return Fund
Open Future Contracts	$	–	$	–	$	–	$	–	$	(43,093	)	$	–	$	–	$	(43,093	)

¹Investments in other financial instruments include futures contracts which are reflected at the unrealized appreciation/(depreciation) on the instrument.

Restricted Securities – Restricted securities are often purchased in private placement transactions and cannot be sold without prior registration unless the sale is pursuant to an exemption under the Securities Exchange Act of 1933, as amended. The following table details restricted securities that have been deemed illiquid, held at December 31, 2011.

	Initial Acquisition Date		Cost		Ending Value		Percent of Net Assets
JNL Money Market Fund
Repurchase Agreement with Credit Suisse International, 0.23% (Collateralized by $32,575,752 Federal National Mortgage Association, 4.50% - 6.00%, due 09/01/18 - 07/01/39, value $35,702,342) acquired on 12/30/11, due 01/18/12 at $35,004,249		11/17/2011	$	35,000,000	$	35,000,000		1.7	%

See accompanying Notes to the Financial Statements.

JNL Investors Series Trust

Notes to Schedules of Investments

December 31, 2011

Schedule of Open Futures Contracts

	Expiration		Contracts (Short)		Unrealized (Depreciation)
JNL/PPM America Total Return Fund
U.S. Treasury Bond Future, 20-Year		March 2012		(15)	$	(4,802	)
U.S. Treasury Note Future, 5-Year		March 2012		(165)		(25,324	)
U.S. Treasury Note Future, 10-Year		March 2012		(85)		(9,271	)
Ultra Long Term U.S. Treasury Bond Future, 30-Year		March 2012		(6)		(3,696)
					$	(43,093	)

See accompanying Notes to the Financial Statements.

JNL Investors Series Trust

Statements of Assets and Liabilities

December 31, 2011

	JNL/PPM America Total Return Fund		JNL Money Market Fund
Assets
Investments - unaffiliated, at value (a)	$	286,501,419	$	1,209,209,684
Investments - affiliated, at value (b)		69,859,053		–
Repurchase agreements (a)		–		829,900,000
Total investments, at value (c)		356,360,472		2,039,109,684
Receivable for investments sold		21,633,974		–
Receivable for fund shares sold		280		–
Receivable for dividends and interest		2,402,739		1,848,297
Receivable for deposits with brokers		493,425		–
Other assets		76		–
Total assets		380,890,966		2,040,957,981
Liabilities
Cash overdraft		63,661		–
Payable for advisory fees		75,231		299,966
Payable for dividends		–		48,550
Payable for administrative fees		15,046		–
Payable for 12b-1 fee (Class A)		28,166		–
Payable for investment securities purchased		79,061,597		–
Payable for fund shares redeemed		993		–
Payable for trustee fees		689		32,116
Payable for variation margin		54,407		–
Payable for other expenses		182		75,181
Total liabilities		79,299,972		455,813
Net assets	$	301,590,994	$	2,040,502,168
Net assets consist of:
Paid-in capital	$	298,124,489	$	2,040,531,640
Undistributed (excess of distributions over) net investment income		36,030		(29,127	)
Accumulated net realized gain (loss)		368,596		(345	)
Net unrealized appreciation on investments and foreign currency		3,061,879		–
	$	301,590,994	$	2,040,502,168
Shares outstanding (no par value), unlimited shares authorized		28,128,710		2,040,531,947
Net asset value per share	$	10.72	$	1.00
(a) Investments - unaffiliated, at cost	$	283,396,447	$	2,039,109,684
(b) Investments - affiliated, at cost		69,859,053		–
(c) Total investments, at cost	$	353,255,500	$	2,039,109,684

See accompanying Notes to the Financial Statements.

JNL Investors Series Trust

Statements of Operations

	JNL/PPM America Total Return Fund						JNL Money Market Fund
	For the two months ended December 31, 2011			For the year ended October 31, 2011			For the two months ended December 31, 2011			For the year ended October 31, 2011
Investment income
Dividends(a)	$	4,796		$	21,386		$	18		$	51
Interest		548,844			1,388,263			662,635			3,978,673
Total investment income		553,640			1,409,649			662,653			3,978,724
Expenses
Advisory fees		87,281			141,814			569,633			3,107,707
Administrative fees		17,456			28,362			–			–
12b-1 fee (Class A)		28,166			—			–			–
Legal fees		35			195			2,252			9,458
Trustee fees		102			581			6,529			29,019
Other expenses		100			1,800			5,652			81,860
Total expenses		133,140			172,752			584,066			3,228,044
Expense waiver		–			–			–			(25,081	)
Net expenses		133,140			172,752			584,066			3,202,963
Net investment income		420,500			1,236,897			78,587			775,761
Realized and unrealized gain (loss)
Net realized gain (loss) on:
Unaffiliated investments		391,797			1,539,689			(345	)		51,766
Futures contracts		773			(47,965	)		–			–
Net change in unrealized appreciation (depreciation) on:
Investments		1,734,301			(788,288	)		–			–
Futures contracts		(49,563	)		47,907			–			–
Net realized and unrealized gain		2,077,308			751,343			(345	)		51,766
Net increase in net assets from operations	$	2,497,808		$	1,988,240		$	78,242		$	827,527
(a) Dividends from affiliated investments	$	4,784		$	1,564		$	–		$	–

See accompanying Notes to the Financial Statements.

JNL Investors Series Trust

Statements of Changes in Net Assets

	JNL/PPM America Total Return Fund
	For the two months ended December 31, 2011			For the year ended October 31, 2011			For the year ended October 31, 2010
Operations
Net investment income	$	420,500		$	1,236,897		$	1,164,571
Net realized gain		392,570			1,491,724			2,036,182
Net change in unrealized appreciation (depreciation)		1,684,738			(740,381	)		364,230
Net increase in net assets from operations		2,497,808			1,988,240			3,564,983
Distributions to shareholders
From net investment income
Class A		(1,472,069	)		(1,191,029	)		(982,782	)
From net realized gains
Class A		(1,518,271	)		(1,964,107	)		(1,379,433	)
Total distributions to shareholders		(2,990,340	)		(3,155,136	)		(2,362,215	)
Share transactions1
Proceeds from the sale of shares
Class A		299,111,113			–			–
Reinvestment of distributions
Class A		2,990,340			3,155,136			2,362,215
Cost of shares redeemed
Class A		(29,494,315	)		–			–
Net increase in net assets from share transactions		272,607,138			3,155,136			2,632,215
Net increase net assets		272,114,606			1,988,240			3,564,983
Net assets beginning of period		29,476,388			27,488,148			23,923,165
Net assets end of period	$	301,590,994		$	29,476,388		$	27,488,148
Undistributed net investment income	$	36,030		$	1,074,996		$	988,110
1Share transactions
Shares sold
Class A		28,115,962			–			–
Reinvestment of distributions
Class A		281,907			292,956			216,320
Shares redeemed
Class A		(2,782,423	)		–			–
Net increase
Class A		25,615,446			292,956			216,320
Purchase and sales of investment securities (excluding short-term securities):
Purchase of securities	$	320,430,788	(a)	$	83,764,932	(b)	$	113,096,493	(c)
Proceeds from sales of securities		64,500,522	(a)		84,010,994	(b)		112,794,003	(c)

(a) Amounts include $144,859,818 and $59,265,412 of purchases and sales, respectively, of U.S. Government Securities.

(b) Amounts include $804,131 and $3,163,848 of purchases and sales, respectively, of U.S. Government Securities.

(c) Amounts include $15,292,233 and $14,585,773 of purchases and sales, respectively, of U.S. Government Securities.

See accompanying Notes to the Financial Statements.

JNL Investors Series Trust

Statements of Changes in Net Assets

	JNL Money Market Fund
	For the two months ended December  31, 2011			For the year ended October 31, 2011			For the year ended October 31, 2010
Operations
Net investment income	$	78,587		$	775,761		$	621,800
Net realized gain		(345	)		51,766			13,443
Net change in unrealized appreciation (depreciation)		–			–			–
Net increase in net assets from operations		78,242			827,527			635,243
Distributions to shareholders
From net investment income
Institutional Class		(106,305	)		(775,761	)		(621,800	)
From net realized gains
Institutional Class		(53,457	)		(5,025	)		(40,629	)
Total distributions to shareholders		(159,762	)		(780,786	)		(662,429	)
Share transactions1
Proceeds from the sale of shares
Institutional Class		3,285,833,304			18,692,886,046			13,736,592,238
Cost of shares redeemed
Institutional Class		(3,139,649,965	)		(18,308,854,731	)		(13,070,448,364	)
Net increase in net assets from share transactions		146,183,339			384,031,315			666,143,874
Net increase net assets		146,101,819			384,078,056			666,116,688
Net assets beginning of period		1,894,400,349			1,510,322,293			844,205,605
Net assets end of period	$	2,040,502,168		$	1,894,400,349		$	1,510,322,293
Undistributed (excess of distributions over) net investment income	$	(29,127	)	$	–		$	–
1Share transactions
Shares sold
Institutional Class		3,285,833,304			18,692,886,046			13,736,592,238
Shares redeemed
Institutional Class		(3,139,649,965	)		(18,308,854,731	)		(13,070,448,364	)
Net increase
Institutional Class		146,183,339			384,031,315			666,143,874
Purchase and sales of investment securities (excluding short-term securities):
Purchase of securities	$	217,652,435	(a)	$	–		$	–
Proceeds from sales of securities		58,825,752	(a)		–			–

(a) Amounts include $189,805,215 and $13,159,410 of purchases and sales, respectively, of U.S. Government Securities.

See accompanying Notes to the Financial Statements.

JNL Investors Series Trust

Financial Highlights

For a Share Outstanding

			Increase (Decrease) from Investment Operations (a)							Distributions from								Supplemental Data								Ratios
Period Ended	Net Asset Value, Beginning of Period		Net Investment Income (Loss)		Net Realized & Unrealized Gains, (Losses)		Total from Investment Operations			Net Investment Income			Net Realized Gains on Investment Transactions			Net Asset Value, End of Period		Total Return(b)			Net Assets, End of Period (in thousands)		Portfolio Turnover (c)			Expenses to Average Net Assets (d)			Net Investment Income (Loss) to Average Net Assets (d)
JNL/PPM America Total Return Fund
12/31/2011 (i)	$	11.73	$	0.04	$	0.04	$	0.08		$	(0.49	)	$	(0.60	)	$	10.72		0.87	%	$	301,591		33	(e) %		0.76	%		2.41	%
10/31/2011		12.38		0.50		0.27		0.77			(0.54	)		(0.88	)		11.73		7.25			29,476		302	(e)		0.61			4.36
10/31/2010		11.94		0.53		1.09		1.62			(0.49	)		(0.69	)		12.38		14.88			27,488		246	(e)		0.60			4.56
10/31/2009 (f)		10.00		0.40		1.54		1.94			–			–			11.94		19.40			23,923		476	(e)		0.80			4.39
JNL Money Market Fund
12/31/2011 (i)		1.00		0.00		–		0.00	(h)		(0.00	) (h)		–			1.00		0.01			2,040,502		n/a			0.19			0.03
10/31/2011		1.00		0.00		–		0.00	(h)		(0.00	) (h)		–			1.00		0.05			1,894,400		n/a			0.19	(g)		0.05	(g)
10/31/2010		1.00		0.00		–		0.00	(h)		(0.00	) (h)		–			1.00		0.06			1,510,322		n/a			0.20			0.06
10/31/2009		1.00		0.01		–		0.01			(0.01	)		–			1.00		0.60			844,206		n/a			0.21			0.49
10/31/2008		1.00		0.03		–		0.03			(0.03	)		–			1.00		3.12			504,934		n/a			0.21			3.14

(a) Calculated using the average shares method.

(b) Total return assumes reinvestment of all distributions for the period. Total return is not annualized for periods less than one year.

(c) Portfolio turnover is not annualized for periods of less than one year and excludes dollar roll transactions.

(d) Annualized for periods less than one year.

(e) Portfolio turnover including dollar roll transactions for JNL/PPM America Total Return Fund was 647% for the period ended October 31, 2009, 454% for the year ended October 31, 2010, 410% for the year ended October 31, 2011 and 56% for the period ended December 31, 2011.

(f) Commencement of operations for JNL/PPM America Total Return Fund was December 29, 2008.

(g) The ratios of expenses to average net assets and net investment income to average net assets without the expense waiver for the JNL Money Market Fund were 0.20% and 0.05%, respectively for the year ended October 31, 2011.

(h) Amount represents less than $0.005.

(i) For the two months ended December 31, 2011.

See accompanying Notes to the Financial Statements.

JNL Investors Series Trust

Notes to Financial Statements

December 31, 2011

NOTE 1. ORGANIZATION

The JNL Investors Series Trust (“Trust”) was organized under the laws of Massachusetts, by a Declaration of Trust, dated July 28, 2000. The Trust is registered with the U.S. Securities and Exchange Commission (“SEC”) under the Investment Company Act of 1940, as amended, (���1940 Act”), and the Securities Act of 1933, as amended, (“1933 Act”) as an open-end management investment company issuing its shares in various series. Each series is known as a “Fund” (collectively, “Funds”) and represents a distinct portfolio with its own investment objectives and policies. The Trust currently consists of two (2) separate Funds, the JNL/PPM America Total Return Fund, for which PPM America, Inc. serves as the Sub-Adviser, and the JNL Money Market Fund, for which Wellington Management Company, LLP serves as Sub-Adviser. The JNL/PPM America Total Return Fund and the JNL Money Market Fund are diversified investment companies as defined in the 1940 Act.

Jackson National Asset Management, LLC (“JNAM” or “Adviser”), a wholly-owned subsidiary of Jackson National Life Insurance Company (“Jackson”), serves as investment adviser to each of the Funds. The Adviser is a wholly owned subsidiary of Jackson, which is in turn a wholly owned subsidiary of Prudential plc, a publicly traded company incorporated in the United Kingdom. Prudential plc is not affiliated in any manner with Prudential Financial Inc., a company whose principal place of business is the United States of America. PPM America, Inc., the Sub-Adviser for JNL/PPM America Total Return Fund, is an affiliate of JNAM. At December 31, 2011, affiliated investment funds owned 100% of the outstanding capital shares of the JNL/PPM America Total Return Fund and the JNL Money Market Fund.

The JNL/PPM America Total Return Fund presently offers one class of shares, Class A, which are available for investment to certain Funds in the JNL Series Trust, an open end management investment company advised by JNAM. The JNL Money Market Fund offers an Institutional Class of shares. Institutional Class shares are not sold to retail investors but are available for investment to affiliated Funds.

NOTE 2. SIGNIFICANT ACCOUNTING POLICIES

The following is a summary of significant accounting policies consistently followed by the Trust in the preparation of its financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”).

Effective November 21, 2011, the Trust’s Board of Trustees (“Board” or “Trustees”) approved changing the Trust’s fiscal and tax year end from October 31 to December 31.

Security Valuation – The net asset value (“NAV”) of each Fund shall be determined as of the close of trading (generally, 4:00 PM Eastern Time) on each day the New York Stock Exchange (“NYSE”) is open for trading. Debt securities are generally valued by independent pricing services approved by the Trust’s Board. Pricing services utilized to value debt securities may use various pricing techniques which take into account appropriate factors such as: yield; credit quality; coupon rate; maturity; type of issue; trading characteristics; call features; credit ratings; and other data, as well as broker quotes. If pricing services are unable to provide valuations, debt securities are valued at the most recent bid quotation or evaluated price, as applicable, obtained from the Fund’s Adviser, a broker/dealer or widely used quotation system. All securities in the JNL Money Market Fund, as permitted by compliance with applicable provisions of Rule 2a-7 under the 1940 Act, and other short-term securities maturing within sixty (60) days are valued at amortized cost, unless it is determined that such practice does not approximate market value. Futures contracts traded on a liquid exchange are valued at the settlement price. If the settlement price is not available, exchange traded futures are valued at the last sales price as of the close of business on the local exchange. Stocks traded on an exchange are generally valued at the official closing price of the exchange where the security is principally traded. If there is no official closing price for the security, the security may be valued at the last quoted sale price on the exchange where the security is principally traded or final bid price in the absence of a sale. Stocks not listed on a national or foreign stock exchange may be valued at the closing bid price on the over-the-counter market. Investments in mutual funds are valued at the NAV per share determined as of the close of the NYSE on each valuation date.

Market quotations may not be readily available for certain investments or it may be determined that a quotation for an investment does not represent market value. In such instances, the investment is valued as determined in good faith using procedures adopted by the Board. Situations that may require an investment to be fair valued may include instances where a security is thinly traded, halted or restricted as to resale. In addition, investments may be fair valued based on the occurrence of a significant event. Significant events may be specific to a particular issuer, such as mergers, restructurings or defaults. Alternatively, significant events may affect an entire market, such as natural disasters, government actions, and significant changes in value of U.S. securities markets. Securities are fair valued based on observable and unobservable inputs, including the Adviser’s own assumptions in determining fair value of an investment. Under the procedures adopted by the Board, the Adviser may rely on pricing services or other sources, including the Fund’s Sub-Adviser, to assist in determining the fair value of an investment. Factors considered to determine fair value may include the correlation with price movement of similar securities in the same or other markets; the type, cost and investment characteristics of the security; the business and financial condition of the issuer; and trading or other market data.

If an investment is valued at a fair value for purposes of calculating a Fund’s NAV, the value may be different from the last quoted price for the investment depending on the source and method used to determine the value. Although there can be no assurance, in general, the fair value of the investment is the amount the owner of such investment might reasonably expect to receive upon its current sale.

Please see the Notes to the Schedules of Investments, Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 820, “Fair Value Measurements and Disclosure”, for expanded disclosure of fair value measurements.

Recent Accounting Pronouncements – In April, 2011, FASB released Accounting Standards Update (“ASU”) No. 2011-03 “Reconsideration of Effective Control for Repurchase Agreements”. ASU No. 2011-03 is intended to improve financial reporting of repurchase agreements and other agreements that

JNL Investors Series Trust

Notes to Financial Statements

December 31, 2011

both entitle and obligate a transferor to repurchase or redeem the financial assets before their maturity. The ASU eliminates the collateral maintenance provision that an entity may use to determine whether a transfer of securities in a repurchase agreement is accounted for as a sale or a secured borrowing. The ASU may cause certain dollar roll transactions that are currently accounted for as purchase and sale to be characterized as a secured borrowing transaction. The ASU is effective for the first interim or annual period beginning on or after December 15, 2011. Management is currently evaluating the impact ASU No. 2011-03 will have on the Funds’ financial statement disclosures.

In May 2011, FASB released ASU No. 2011-04 “Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and International Financial Reporting Standards”. ASU 2011-04 further clarifies fair value measurement principles and requires additional disclosures. Effective for interim and annual periods beginning after December 15, 2011, entities will need to disclose the amounts and reasons for any transfers between Level 1 and Level 2 securities, quantitative information relating to significant observable inputs, a narrative description of the valuation process, and a narrative description of the sensitivity of the fair value measurement to changes in unobservable or Level 3 fair valuation inputs. Management is currently evaluating the impact ASU No. 2011-04 will have on the Funds’ financial statement disclosures.

Distributions to Shareholders – The amount and timing of distributions are determined in accordance with federal income tax regulations, which may differ from GAAP. The JNL/PPM America Total Return Fund generally declares and pays dividends from net investment income annually, but may pay more frequently to avoid excise tax. The JNL Money Market Fund declares dividends daily and pays dividends monthly. Distributions of net realized capital gains, if any, will be distributed at least annually, to the extent they exceed available capital loss carryforwards.

Expenses – Expenses are recorded on an accrual basis. Expenses of the Trust that are directly attributable to a specific Fund are charged to that Fund. Other Trust level expenses are allocated to the Funds based on the average daily net assets of each Fund.

Federal Income Taxes – Each Fund is a separate taxpayer for federal income tax purposes. Each Fund intends to qualify as a regulated investment company (“RIC”) and to distribute substantially all net investment income and net capital gains, if any, to its shareholders and otherwise comply with Subchapter M of the Internal Revenue Code of 1986, as amended, applicable to regulated investment companies. Therefore, no federal income tax provision is required.

Guarantees and Indemnifications – Under the Trust’s organizational documents, its Officers and Trustees are indemnified against certain liabilities arising out of the performance of their duties to the Funds. In addition, certain of the Funds’ contracts with service providers contain general indemnification clauses. The Funds’ maximum exposure under these arrangements is unknown since the amount of any future claims that may be made against the Funds cannot be determined and the Funds have no historical basis for predicting the likelihood of any such claims.

Security Transactions and Investment Income – Security transactions are recorded on the trade date for financial reporting purposes. Dividend income, net of applicable withholding taxes, is recorded on the ex-dividend date. Interest income, including level-yield amortization of discounts and premiums, is accrued daily. A Fund may place a debt obligation on non-accrual status and reduce related interest income by ceasing current accruals and writing off interest receivables when the collection of all or a portion of interest has become doubtful. A debt obligation is removed from non-accrual status when the issuer resumes interest payments or when collectability of interest is reasonably assured. Realized gains and losses are determined on the specific identification basis.

Use of Estimates – The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of increases and decreases in net assets from operations during the reporting period. Actual results could differ from those estimates.

NOTE 3. FINANCIAL DERIVATIVES AND OTHER SECURITIES INVESTMENTS

FASB ASC Topic 815, “Derivatives and Hedging” – This standard includes the requirement for qualitative disclosures about objectives and strategies for using derivative instruments and disclosures regarding credit related contingent features in derivative instruments; as well as requiring quantitative disclosures in the semi-annual and annual financial statements about fair value, realized and unrealized gains and losses and volume of activity for derivative instruments. Information about these instruments is disclosed in the context of each instrument’s primary underlying risk exposure which is categorized as credit, equity price, interest rate, and foreign currency exchange rate risk. The objectives, strategies and underlying risks for each instrument held by the JNL/PPM America Total Return Fund are discussed in the following paragraph.

Futures Contracts – The JNL/PPM America Total Return Fund may be subject to interest rate risk in the normal course of pursuing its investment objectives. During the period, the Fund used futures contracts to manage exposure to or hedge changes in interest rates and to replicate treasury bond positions. Upon entering into a futures contract, the Fund is required to deposit with the broker or counterparty an amount of cash or cash equivalents equal to a certain percentage of the contract amount, known as the “initial margin”. The Fund receives from or pays to the counterparty an amount of cash equal to the daily fluctuation in the value of the contracts. Such receipts or payments, known as the “variation margin”, are recorded by the Fund until the contracts are terminated at which time realized gains and losses are recognized. Futures contracts involve, to varying degrees, risk of loss in excess of the variation margin recorded by the Fund. The primary risks associated with the use of futures contracts are the imperfect correlation between the change in market value of the securities held by the Fund or the change in the market value of an underlying entity and the prices of the futures contracts and the possibility the Fund may not be able to enter into a closing transaction because of an illiquid market. With futures, there is minimal counterparty risk to the Fund since futures are exchange traded and the exchange’s clearing house, as counterparty to all exchange traded futures, guarantees the future contracts against default.

JNL Investors Series Trust

Notes to Financial Statements

December 31, 2011

At December 31, 2011, variation margin related to futures is reflected as receivable or payable for variation margin in the Statement of Assets and Liabilities. During the period ended December 31, 2011, realized gains and change in unrealized appreciation/(depreciation) in futures contracts is reflected for such investments in the Statement of Operations. The futures contracts outstanding as of December 31, 2011, as disclosed in the Notes to the Schedule of Investments and the amounts of realized and changes in unrealized gains and losses on futures contracts during the period as disclosed in the Statement of Operations serve as indicators of the volume of activity for the Fund.

U.S. Government Agencies or Government Sponsored Enterprises – Certain Funds may invest in U.S. government agencies or government sponsored enterprises. U.S. Government securities are obligations of and, in certain cases, guaranteed by, the U.S. government, its agencies or instrumentalities. Some U.S. Government securities, such as Treasury bills, notes and bonds, and securities guaranteed by the Government National Mortgage Association, are supported by the full faith and credit of the U.S. government; others, such as those of the Federal Home Loan Bank, are supported by the right of the issuer to borrow from the U.S. Department of the Treasury (“U.S. Treasury”); others, such as those of the Federal National Mortgage Association (“FNMA” or “Fannie Mae”), are supported by the discretionary authority of the U.S. government to purchase the agency’s obligations; and still others, such as those of the Student Loan Marketing Association, are supported only by the credit of the instrumentality. U.S. Government securities may include zero coupon securities, which do not distribute interest on a current basis and tend to be subject to greater risk than interest paying securities of similar maturities.

Government-related guarantors (i.e., guarantors who are not backed by the full faith and credit of the U.S. government) include FNMA and the Federal Home Loan Mortgage Corporation (“FHLMC” or “Freddie Mac”). FNMA purchases conventional (i.e., not insured or guaranteed by any government agency) residential mortgages from a list of approved seller/servicers which include state and federally chartered savings and loan associations, mutual savings banks, commercial banks and credit unions and mortgage bankers. Pass-through securities issued by FNMA are guaranteed as to timely payment of principal and interest by FNMA, but are not backed by the full faith and credit of the U.S. government. FHLMC issues Participation Certificates (“PCs”), which are pass-through securities, each representing an undivided interest in a pool of residential mortgages. FHLMC guarantees the timely payment of interest and ultimate collection of principal, but PCs are not backed by the full faith and credit of the U.S. government.

FNMA and FHMLC were placed into conservatorship by the Federal Housing Finance Agency (“FHFA”). As the conservator, FHFA succeeded to all rights, titles, powers and privileges of FNMA and FHLMC and of any stockholder, officer or director of FNMA and FHLMC with respect to FNMA and FHLMC and each enterprise’s assets. In connection with the conservatorship, the U.S. Treasury entered into a Senior Preferred Stock Purchase Agreement with FNMA and FHLMC. This agreement contains various covenants that severely limit each enterprise’s operations. In exchange for entering into these agreements, the U.S. Treasury received senior preferred stock in each enterprise and warrants to purchase each enterprise’s common stock. The U.S. Treasury created a new secured lending facility, which is available to FNMA and FHLMC as a liquidity backstop and created a temporary program to purchase mortgage-backed securities issued by FNMA and FHLMC. FNMA and FHLMC are continuing to operate as going concerns while in conservatorship and each remains liable for all of its obligations, including its guaranty obligations, associated with its mortgage-backed securities.

Unregistered Securities – A Fund may own certain investment securities, which are unregistered and thus restricted to resale. These securities may also be referred to as “private placements”. Unregistered securities may be “illiquid” because there is no readily available market for sale of the securities. Where future dispositions of the securities require registration under the 1933 Act, as amended, the Funds have the right to include those securities in such registration generally without cost to the Funds. The Funds have no right to require registration of unregistered securities.

Repurchase Agreements – A Fund may invest in repurchase agreements. A repurchase agreement involves the purchase of a security by a Fund and a simultaneous agreement by the seller, generally a bank or broker/dealer, to repurchase that security back from the Fund at a specified price and date or upon demand. The underlying securities used as collateral for all repurchase agreements are held in safekeeping at the Fund’s Custodian or designated subcustodians under triparty repurchase agreements. The market value of the collateral must be equal to or exceed at all times the total amount of the repurchase obligations, including interest. JNAM monitors that the daily market value of the collateral for the repurchase agreement is in excess of the repurchase agreement. In the event of a default by the counterparty, realization of the collateral proceeds could be delayed, during which time the value of such collateral may decline.

Delayed-Delivery Securities – The JNL/PPM America Total Return Fund may purchase or sell securities on a delayed-delivery basis, including To Be Announced (“TBA”) or “To Be Acquired” securities. These transactions involve a commitment by the Fund to purchase or sell securities for a predetermined price or yield, with payment and delivery taking place beyond the customary settlement period. In TBA transactions, the Fund commits to purchasing or selling securities for which all specific information is not yet known at the time of the trade, particularly the face amount and maturity date of the underlying security transactions. When delayed-delivery purchases are outstanding, the Fund is required to have sufficient cash and/or liquid securities to cover its commitments on these transactions. When purchasing a security on a delayed-delivery basis, the Fund assumes the rights of ownership of the security, including the risk of price and yield fluctuations, and considers such fluctuations when determining its NAV. The Fund may dispose of or renegotiate a delayed-delivery transaction after it is entered into, and may sell delayed-delivery securities before they are delivered, which may result in a capital gain or loss. When the Fund has sold a security on a delayed-delivery basis, the Fund does not participate in future gains or losses with respect to the security. Securities purchased on a TBA basis are not settled until they are delivered to the Fund. In connection with TBA transactions, the JNL/PPM America Total Return Fund may maintain a short position related to certain securities. In connection with these transactions, the Fund owns an equal amount of the securities or holds securities convertible (or exchangeable) into an equal amount of the securities, of the same issuer, as the position held short. Master Securities Forward Transaction Agreements (“Master Forward Agreements”) govern the consideration of factors surrounding the settlement of certain purchases and sales made on a delayed-delivery basis by and between the Fund and select counterparties. The Master Forward Agreements maintain provisions for, among other things, initiation and confirmation, payment and transfer, events of default, termination and maintenance of collateral.

JNL Investors Series Trust

Notes to Financial Statements

December 31, 2011

Dollar Roll Transactions – The JNL/PPM America Total Return Fund may enter into mortgage dollar rolls in which the Fund sells mortgage-backed securities for delivery in the current month and simultaneously contracts to repurchase substantially similar (same type, coupon and maturity) securities on a specified future date. During the roll period, the Fund foregoes principal and interest paid on the mortgage-backed securities. The Fund is compensated by the interest earned on the cash proceeds of the initial sale and from negotiated fees paid by brokers offered as an inducement to the Fund to “roll over” its purchase commitments. The Fund may only enter into covered rolls. A “covered roll” is a type of dollar roll for which the Fund maintains offsetting positions in cash, U.S. Government securities, or other liquid assets which mature on or before the forward repurchase settlement date of the dollar roll transaction. Dollar roll transactions involve the risk that the market value of the securities sold by the Fund may decline below the repurchase price of those similar securities which the Fund is obligated to purchase or that the return earned by the Fund with the proceeds of a dollar roll may not exceed transaction costs.

Securities Lending and Securities Lending Collateral – The JNL/PPM America Total Return Fund may lend securities to certain brokers, dealers or other financial institutions in order to earn additional income. The borrowers pay the Fund’s securities lending agent negotiated lender fees and the Fund receives a fee equal to a percentage of the negotiated lender fees and the net income generated by the securities lending collateral held during each lending transaction. The securities lending agent is authorized to loan securities on behalf of the Fund to approved borrowers and is required to maintain collateral at least equal to the value of the securities loaned based on the previous day’s market value of the securities loaned, marked-to-market daily. Any shortfalls are adjusted the next business day. In the event of bankruptcy or other default of the borrower, the Fund could experience delays in liquidating the loan collateral or recovering the loaned securities and incur expenses related to enforcing its rights. In addition, there could be a decline in the value of the collateral or in the value of the securities loaned while the Fund seeks to enforce its rights thereto and the Fund could experience subnormal levels of income or lack of access to income during that period. The Fund also bears the risk of any deficiency in the amount of collateral available for return to a borrower due to a loss in an approved investment. The JNL/PPM America Total Return Fund did not participate in the securities lending program during the period ended December 31, 2011.

Senior and Junior Loans – A Fund may invest in Senior loans or secured and unsecured subordinated loans, second lien loans and subordinated bridge loans (“Junior loans”) which are purchased or sold on a when-issued or delayed-delivery basis and may be settled a month or more after the trade date. Interest income on these loans is accrued based on the terms of the securities. Senior and Junior loans can be acquired through an agent, by assignment from another holder of the loan, or as a participation interest in another holder’s portion of the loan.

NOTE 4. INVESTMENT ADVISORY FEES AND TRANSACTIONS WITH AFFILIATES

The Trust has an investment advisory agreement with JNAM, whereby JNAM provides investment management services. Each Fund pays JNAM an annual fee, accrued daily and paid monthly, based on a specified percentage of the average daily net assets of each Fund. A portion of this fee is paid by JNAM to the Sub-Advisers as compensation for their services. The JNL/PPM America Total Return Fund is obligated to pay JNAM an annual rate of 0.50% for net assets up to $1 billion and 0.45% for net assets over $1 billion. The JNL Money Market Fund is obligated to pay JNAM an annual rate of 0.20% for net assets up to $750 million and 0.18% for net assets over $750 million.

Administrative Fee – JNAM also serves as the “Administrator” to the Funds. The JNL/PPM America Total Return Fund pays JNAM an Administrative Fee at an annual rate of 0.10% of the average daily net assets of the Fund which is accrued daily and paid monthly. JNAM provides or procures most of the necessary administrative functions and services for the operations of the JNL Money Market Fund at no additional cost. In accordance with the Administration Agreement, JNAM is responsible for payment of the following expenses: fund accounting, shareholder reporting, shareholder servicing, certain legal, insurance, custody, audit, and tax fees. Additionally, JNAM provides transfer agency services.

Fee Waiver and Expense Reimbursements – Effective November 1, 2010, the Board approved a contractual expense limitation agreement whereby JNAM agreed to waive fees and reimburse expenses of the JNL Money Market Fund to the extent necessary to limit operating expenses of the Fund (excluding brokerage expense, interest, taxes and dividend, and extraordinary expenses) to an annual rate as a percentage of average daily net assets equal to or less than the Fund’s net investment income for the year. JNAM may recover previously reimbursed expenses from the Fund for fees waived and reimbursed. During the year ended October 31, 2011 and the period ended December 31, 2011, no fees were waived under the contractual expense limitation agreement. During the year ended October 31, 2011, the Adviser voluntarily waived expenses of the Fund in the amount of $25,081. This amount is recorded as expense waiver in the Fund’s Statement of Operations. None of the voluntarily waived expenses are recoverable from the Fund by the Adviser.

Rule 12b-1 Fees – The JNL/PPM America Total Return Fund adopted a Distribution Plan under the provisions under Rule 12b-1 under the 1940 Act for the purpose of reimbursement of certain distribution and related service expenses from the sale and distribution of the Fund’s Class A shares. Jackson National Life Distributors LLC (“JNLD”), a wholly-owned subsidiary of Jackson and an affiliate of JNAM, is the principal underwriter of the Funds, with responsibility for promoting sales of their shares. JNLD also is the principal underwriter of the variable insurance products issued by Jackson and its subsidiaries. For the JNL/PPM Total Return Fund, the maximum annual 12b-1 fee allowed is 0.20% of the average daily net assets attributable to Class A shares. Effective December 12, 2011, the JNL/PPM America Total Return Fund began charging Rule 12b-1 fees. Amounts charged pursuant to the Distribution Plan are reflected as 12b-1 fees (Class A) in the Statements of Operations. Institutional Class shares of JNL Money Market Fund have no Rule 12b-1 Fees.

JNL Investors Series Trust

Notes to Financial Statements

December 31, 2011

Deferred Compensation Plan – Effective January 1, 2007, the Funds adopted a Deferred Compensation Plan whereby disinterested Trustees may defer the receipt of all or a portion of their compensation. These deferred amounts, which remain as liabilities of the Funds, shall be treated as if invested and reinvested in shares of one or more affiliated funds at the discretion of the applicable Trustee. These amounts represent general, unsecured liabilities of the Funds and vary according to the total returns of the selected Funds. Prior to January 1, 2007, Trustees were able to defer the receipt of their compensation under a separate plan. Deferred amounts under this plan are credited at a fixed annual rate of return of five percent (5%). Liabilities related to deferred balances are included in payable for trustee fees in the Statements of Assets and Liabilities. Increases or decreases related to the changes in value of deferred balances are included in trustee fees set forth in the Statements of Operations.

Investments in Affiliates – During the period ended December 31, 2011, the JNL/PPM America Total Return Fund invested in a money market fund which is managed by the Adviser. The JNL Money Market Fund is offered as a cash management tool to the JNL/PPM America Total Return Fund and its affiliates and is not available for direct purchase by members of the public. JNL/PPM America Total Return Fund’s investment in JNL Money Market Fund on October 31, 2011 and December 31, 2011 was $2,405,570 and $69,859,053, respectively. During the year ended October 31, 2011 and the period ended December 31, 2011, dividend income received from this investment was $1,564 and $4,784, respectively. There was no realized gain or loss relating to transactions in this investment for the year ended October 31, 2011 or the period ended December 31, 2011.

NOTE 5. FEDERAL INCOME TAX MATTERS

The following information is presented on an income tax basis. Differences between amounts for financial statements and federal income tax purposes are primarily due to timing and character differences in recognizing certain gains and losses on investment transactions. Permanent differences between financial statement and federal income tax reporting are reclassified within the capital accounts based on their federal income tax treatment. Temporary differences do not require reclassification.

To the extent there are differences between the amounts recognized for financial statements and federal income tax purposes that are permanent in nature, such amounts are reclassified within the capital accounts based on their federal income tax treatment. Permanent differences may include but are not limited to the following: expired capital loss carryforwards, market discount or paydown reclassifications, net operating losses, accounting treatment of notional principal contracts and distribution adjustments. The JNL/PPM America Total Return Fund had reclassifications which increased undistributed net investment income and decreased accumulated net realized gain by $12,603 for the period ended December 31, 2011. The JNL Money Market Fund had reclassifications which decreased undistributed net investment income, increased accumulated net realized gain and decreased paid in capital by $1,409, $1,716 and $307, respectively, for the period ended December 31, 2011. These reclassifications have no impact on net assets.

At December 31, 2011, the cost of investments, the components of net unrealized appreciation/(depreciation), undistributed net ordinary income and undistributed net long-term capital gains were as follows:

	Tax Cost of Investments		Gross Unrealized Appreciation		Gross Unrealized Depreciation			Net Unrealized Appreciation		Undistributed Net Ordinary Income*		Undistributed Net Long-Term Capital Gain
JNL/PPM America Total Return Fund	$	353,255,646	$	3,473,563	$	(368,737	)	$	3,104,826	$	362,369	$	–
JNL Money Market Fund		2,039,109,684		–		–			–		2,949		–

* Undistributed net ordinary income consists of net taxable income derived from dividends, interest and net short-term capital gains, if any.

The Regulated Investment Company Modernization Act of 2010 (“Act”) was enacted on December 22, 2010. In general, the provisions of the Act are effective for the Funds’ period ending December 31, 2011. Under the Act, a Fund is permitted to carry forward capital losses for an unlimited period. However, any losses incurred during post-enactment taxable years are required to be utilized prior to the losses incurred in pre-enactment taxable years. As a result of this ordering rule, pre-enactment capital loss carry forwards may be more likely to expire unused. Additionally, post-enactment capital losses that are carried forward will retain their character as either short-term or long-term capital losses, and will not be considered exclusively short-term as under previous law.

At December 31, 2011, the following Fund had post-enactment unused capital loss carryovers for U.S. federal income tax purposes, which may be used to offset future net realized capital gains and will be carried forward indefinitely and retain their character as follows:

	Short Term Capital Losses		Long Term Capital Losses
JNL Money Market Fund	$	345	$	–

The JNL/PPM America Total Return Fund paid distributions of $2,477,913, $2,643,450 and $2,362,215 from net ordinary income which consists of net taxable income derived from dividends and interest and net short-term capital gains, if any, during the period ended December 31, 2011, and the years ended October 31, 2011 and 2010, respectively. The JNL/PPM America Total Return Fund paid distributions from long term capital gains of $512,427 and $511,686 during the period ended December 31, 2011 and the year ended October 31, 2011, respectively. The JNL Money Market Fund paid distributions of $159,762, $780,786 and $662,429 from net ordinary income which consists of net taxable income derived from dividends and interest and net short-term capital gains, if any, during the period ended December 31, 2011, and the years ended October 31, 2011 and 2010, respectively.

FASB ASC Topic 740 “Income Taxes” provides guidance for how uncertain tax positions should be recognized, measured, presented and disclosed in the financial statements. FASB ASC Topic 740 requires the evaluation of tax positions taken or expected to be taken in the course of preparing each Fund’s tax return to determine whether the tax positions are “more-likely-than-not” of being sustained by the applicable tax authority. Tax positions not deemed to

JNL Investors Series Trust

Notes to Financial Statements

December 31, 2011

meet the “more-likely-than-not” threshold would be recorded as a tax expense in the current year. FASB ASC Topic 740 requires that management evaluate the tax positions taken in returns for 2008, 2009, 2010 and 2011 which remain subject to examination, by the Internal Revenue Service. These returns are not subject to examination by any other tax jurisdictions. Management completed an evaluation of the Funds’ tax positions and based on that evaluation, determined that no provision for federal income tax was required in the Funds’ financial statements for the period ended December 31, 2011.

NOTE 6. SUBSEQUENT EVENTS

Management has evaluated subsequent events for the Funds through the date the financial statements are issued, and has concluded there are no events that require adjustments to the financial statements or disclosure in the footnotes.

Report of Independent Registered Public Accounting Firm

To the Shareholders and Board of Trustees

JNL Investors Series Trust:

We have audited the accompanying statements of assets and liabilities of JNL Money Market Fund and JNL/PPM America Total Return Fund (the “Funds”) (series of JNL Investors Series Trust), including the schedules of investments, as of December 31, 2011, and the related statements of operations for the period November 1, 2011 through December 31, 2011 and the year-ended October 31, 2011, the statements of changes in net assets for the period November 1, 2011 through December 31, 2011 and each of the years in the two year period then ended, and the financial highlights for each of the years or periods indicated herein. These financial statements and financial highlights are the responsibility of the Funds’ management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. Our procedures included confirmation of securities owned as of December 31, 2011, by correspondence with the custodian and brokers or other appropriate auditing procedures. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of the Funds as of December 31, 2011, the results of their operations, changes in their net assets and the financial highlights for each of the years or period indicated herein, in conformity with U.S. generally accepted accounting principles.

/s/ KPMG LLP

February 28, 2012

Chicago, Illinois

JNL Investors Series Trust

Additional Disclosures (Unaudited)

December 31, 2011

Disclosure of Fund Expenses

Shareholders incur ongoing costs, which include costs for portfolio management, administrative services, 12b-1 fees and other operating expenses. Operating expenses such as these are deducted from each Fund’s gross income and directly reduce the final investment return. These expenses are expressed as a percentage of the Fund’s average net assets; this percentage is known as the Fund’s expense ratio. The examples below use the expense ratio and are intended to help the investor understand the ongoing costs (in dollars) of investing in a Fund and to compare these costs with the ongoing costs of investing in other mutual funds. The examples are based on an investment of $1,000 made at the beginning of the period shown and held for the entire period.

Expenses Using Actual Fund Return. This section provides information about the actual account values and actual expenses incurred by the Fund. Use the information in this section, together with the amount invested, to estimate the expenses paid over the period. Simply divide the account value by $1,000 (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply the result by the number in the first section under the heading entitled “Expenses Paid During Period” to estimate the expenses paid during this period.

Expenses Using Hypothetical 5% Return. The information in this section can be used to compare each Fund’s costs with those of other mutual funds. It assumes that the Fund had an annual 5% return before expenses during the year, but that the expense ratio for the period is unchanged. This example is useful in making comparisons because the SEC requires all mutual funds to make the 5% calculation.

	Expenses Using Actual Fund Return								Expenses Using Hypothetical 5% Return
	Beginning Account Value 7/01/2011		Ending Account Value 12/31/2011		Annualized Expense Ratios		Expenses Paid During Period		Beginning Account Value 7/01/2011		Ending Account Value 12/31/2011		Annualized Expense Ratios		Expenses Paid During Period
JNL/PPM America Total Return Fund
Class A	$	1,000.00	$	1,032.00		0.71	$	3.64	$	1,000.00	$	1,021.63		0.71	$	3.62
JNL Money Market Fund
Institutional Class		1,000.00		1,000.10		0.19		0.96		1,000.00		1,024.25		0.19		0.97

Expenses paid during the period are equal to the annualized expense ratio, multiplied by the average account value over the period, multiplied by the number of days in the period, then divided by the number of days in the most recent 12-month period (to reflect the most recent 6-month period).

Quarterly Portfolio Holdings

The Funds file a complete schedule of portfolio holdings with the U.S. Securities and Exchange Commission (“SEC”) for the first and third quarters of each fiscal year on Form N-Q. The Funds’ Forms N-Q are available on the SEC’s website at www.sec.gov. The Forms N-Q may be reviewed and copied at the SEC’s Public Reference Room in Washington, DC, and information on the operation of the Public Reference Room may be obtained by calling 800-SEC-0330. It is also available upon request from the registrant by calling the Funds toll-free at 1-866-255-1935.

Proxy Voting Guidelines

The Funds’ Board has adopted the Proxy voting policies and procedures (“Policy”) of the Funds’ Adviser, pursuant to which the Board has delegated proxy voting responsibility to the Adviser, and pursuant to which the Adviser has delegated proxy voting responsibility to each of the Sub-Advisers. The Trust has adopted each of the Sub-Adviser’s proxy voting policies and procedures (“Procedures”).

The Policy is designed to promote accountability of the company’s management to its shareholders and to align the interests of management with those shareholders. The Sub-Advisers generally review each matter on a case-by-case basis in order to make a determination of how to vote in a manner that best serves the interests of Fund shareholders. The Sub-Advisers may abstain from voting from time to time where it determines that the costs associated with voting a proxy outweigh the benefits derived from exercising the right to vote. In addition, the Sub-Advisers will monitor situations that may result in a conflict of interest, in accordance with their Procedures. A description of the policy and the procedures used by the Funds to vote proxies relating to the portfolio securities, and information on how the Funds voted proxies relating to portfolio securities during the 12 month period ended June 30, 2011 are available (1) without charge, upon request by calling 1-866-255-1935, and (2) on the U.S. Securities and Exchange Commission’s website at www.sec.gov.

TRUSTEES AND OFFICERS THE TRUST

NAME, ADDRESSAND (AGE)	POSITION(S) HELD WITH TRUST (LENGTHOF TIME SERVED)	NUMBER OF PORTFOLIOS IN FUND COMPLEX TO BE OVERSEENBY TRUSTEEOR OFFICER
Interested Trustee
Mark D. Nerud (45)1 1 Corporate Way Lansing, MI 48951	Trustee2 (1/2007 to present) President and Chief Executive Officer (12/2006 to present)	106
PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS:
Chief Executive Officer of the Adviser (1/2010 to present); President of the Adviser (1/2007 to present); Managing Board Member of Curian Capital, LLC (1/2011 to present) and Curian Clearing LLC (1/2011 to present); Chief Financial Officer of the Adviser (11/2000 to 1/2007) and Managing Board Member of the Adviser (11/2000 to 11/2003) (1/2007 to 12/2010); President and CEO of other Investment Companies advised by the Adviser (12/2006 to present); Vice President – Fund Accounting & Administration of Jackson National Life Insurance Company (1/2000 to 12/2009)
OTHER DIRECTORSHIPS HELDBY TRUSTEE DURING PAST 5 YEARS: None
Disinterested Trustees
Michael Bouchard (55) 1 Corporate Way Lansing, MI 48951	Trustee2 (12/2003 to present)	106
PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS: Sheriff, Oakland County, Michigan (1/1999 to present)
OTHER DIRECTORSHIPS HELDBY TRUSTEE DURING PAST 5 YEARS: None
William J. Crowley, Jr. (66) 1 Corporate Way Lansing, MI 48951	Trustee2 (1/2007 to present)	106
PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS: Managing Partner (Baltimore Office) – Arthur Andersen LLP (1995 to 2002); Board Member of various corporate boards (2002 to present)
OTHER DIRECTORSHIPS HELDBY TRUSTEE DURING PAST 5 YEARS: Director of Alpha Natural Resources (07/2009 to present); Director of Foundation Coal Holdings, Inc. (from 12/2004 until 7/2009 when the company was acquired); Director of Bio Veris Corporation (from 5/2003 until 6/2007 when the company was acquired); Director of Provident Bankshares Corporation (from 5/2003 until 5/2009 when the company was acquired)
Dominic D’Annunzio (73) 1 Corporate Way Lansing, MI 48951	Trustee2 (2/2002 to present) Chairman of the Board (2/2004 to 12/2010)	106
PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS: Acting Commissioner of Insurance for the State of Michigan (1/1990 to 5/1990) and (8/1997 to 5/1998)
OTHER DIRECTORSHIPS HELDBY TRUSTEE DURING PAST 5 YEARS: None
Michelle Engler (53) 1 Corporate Way Lansing, MI 48951	Chairperson of the Board3 (1/2011 to present) Trustee2 (12/2003 to present)	106
PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS: Attorney (1983 to present); First Lady of the State of Michigan (1990 to 2002)
OTHER DIRECTORSHIPS HELDBY TRUSTEE DURING PAST 5 YEARS:
Director of Federal Home Loan Mortgage Corporation (2001 to 9/2008)

¹Mr. Nerud is an “interested person” of the Trust due to his position with Jackson National Asset Management, LLC, the Adviser.

²The interested and disinterested Trustees are elected to serve for an indefinite term.

³Beginning January 1, 2011, the Chairperson shall serve as Chairperson for no more than three consecutive years and may not be re-elected as Chairperson until at least one year has elapsed since the end of the Chairperson’s term. Chairperson Engler’s term will lapse at the end of 2013.

NAME, ADDRESSAND (AGE)	POSITION(S) HELD WITH TRUST (LENGTHOF TIME SERVED)	NUMBEROF PORTFOLIOSIN FUND COMPLEXTO BE OVERSEENBY TRUSTEEOR OFFICER
James Henry, Ph.D. (73) 1 Corporate Way Lansing, MI 48951	Trustee2 (1/2007 to present)	106
PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS:
Dean Emeritus and Professor of Finance, Eli Broad College of Business and Graduate School of Management at Michigan State University (2001 to 7/2009)
OTHER DIRECTORSHIPS HELDBY TRUSTEE DURING PAST 5 YEARS: None
Richard McLellan (69) 1 Corporate Way Lansing, MI 48951	Trustee2 (12/1994 to present)	106
PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS:
Attorney (2010 to present); Senior Counsel, Dykema Gossett PLLC (2007 to 2009); Member, Dykema Gossett PLLC (Law Firm) (1973 to 2007); Adjunct Associate Professor, Michigan State University (2008 to present)
OTHER DIRECTORSHIPS HELDBY TRUSTEE DURING PAST 5 YEARS: Member of the Board of Directors of ITC Holdings Corp. (11/2007 to present)
William R. Rybak (60) 1 Corporate Way Lansing, MI 48951	Trustee2 (1/2007 to present)	106
PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS: Board Member of various corporate boards (see below) (2002 to present)
OTHER DIRECTORSHIPS HELDBY TRUSTEE DURING PAST 5 YEARS: Member of the Board of Directors of Christian Brothers Investments, Inc. (2010 to present); Chairman of the Board of Trustees of Lewis University (1982 – 2009) and Chair Emeritus (2009 to present); Member of the Board of Directors of Howe Barnes Hoefer Arnett (2001 to 3/2011); Member of the Boards of each of the Calamos Mutual Funds (2002 to present); Member of the Board of Directors of The PrivateBancorp (2003 to present); Chairman of the Board of Trustees of St. Coletta’s of Illinois (2004 to 2007) and Member of the Board (2000 to 2007)
Patricia A. Woodworth (56) 1 Corporate Way Lansing, MI 48951	Trustee2 (1/2007 to present)	106
PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS: Vice President, Chief Financial Officer and Chief Operating Officer, The J. Paul Getty Trust (12/2007 to present); Executive Vice President for Finance and Administration, Chief Financial Officer, Art Institute of Chicago (2002 to 11/2007)
OTHER DIRECTORSHIPS HELDBY TRUSTEE DURING PAST 5 YEARS: None
Karen J. Buiter, (46) 1 Corporate Way Lansing, MI 48951	Assistant Treasurer (12/2008 to present)	Not Applicable
PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS:
Vice President – Financial Reporting of the Adviser (7/2011 to present); Assistant Treasurer of other investment companies advised by Curian Capital, LLC (11/2010 to present); Assistant Vice President – Fund Reporting of the Adviser (4/2008 to 6/2011); Assistant Treasurer of other Investment Companies advised by the Adviser (12/2008 to present); Treasurer of Henderson Global Funds (2/2004 to 3/2008)

NAME, ADDRESSAND (AGE)	POSITION(S) HELD WITH TRUST (LENGTHOF TIME SERVED)	NUMBER OF  PORTFOLIOS IN FUND COMPLEXTO BE OVERSEENBY TRUSTEEOR OFFICER
Officers
Kelly L. Crosser (39) 1 Corporate Way Lansing, MI 48951	Assistant Secretary (9/2007 to present)	Not Applicable
PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS:
Assistant Secretary of other Investment Companies advised by the Adviser (9/2007 to present); Assistant Secretary of other Investment Companies advised by Curian Capital, LLC (11/2010 to present); Senior Compliance Analyst of Jackson National Life Insurance Company (4/2007 to present); Mutual Fund Compliance Analyst of Jackson National Life Insurance Company (2/2006 to 4/2007)
Steven J. Fredricks (41) 1 Corporate Way Lansing, MI 48951	Chief Compliance Officer (1/2005 to present)	Not Applicable
PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS: Chief Compliance Officer of the Adviser and other Investment Companies advised by the Adviser (1/2005 to present); Chief Compliance Officer of other Investment Companies advised by Curian Capital, LLC (10/2011 to present)
Danielle A. Bergandine (31) 1 Corporate Way Lansing, MI 48951	Anti-Money Laundering Officer (12/2007 to present)	Not Applicable
PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS: Senior Compliance Analyst of the Adviser (6/2009 to present); Compliance Analyst of the Adviser (08/2006 to 6/2009); Anti-Money Laundering Officer of other Investment Companies advised by Curian Capital, LLC (10/2011 to present)
Daniel W. Koors (41) 1 Corporate Way Lansing, MI 48951	Vice President (11/2011 to present) Vice President, Treasurer and Chief Financial Officer (12/2006 to 11/2011)	Not Applicable
PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS: Senior Vice President of the Adviser (1/2009 to present), Chief Operating Officer of the Adviser (4/2011 to present), and Chief Financial Officer of the Adviser (1/2007 to 4/2011); Treasurer and Chief Financial Officer (Principal Financial Officer) of other Investment Companies advised by Curian Capital, LLC (11/2010 to present); Vice President of the Adviser (1/2007 to 12/2008); Vice President, Treasurer and Chief Financial Officer of other Investment Companies advised by the Adviser (12/2006 to present); Assistant Vice President – Fund Administration of Jackson National Life Insurance Company (8/2006 to 1/2009)
Gerard A. M. Oprins (52) 1 Corporate Way Lansing, MI 48951	Treasurer and Chief Financial Officer (Principal Financial Officer) (11/2011 to present)	Not Applicable
PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS: Senior Vice President and Chief Financial Officer of the Adviser (4/2011 to present); Treasurer and Chief Financial Officer of the Trust (11/2011 to present); Business Consultant (5/2009 to 3/2011); Partner, Ernst & Young LLP (10/1995 to 4/2009)
Michael Piszczek (54) 1 Corporate Way Lansing, MI 48951	Vice President (11/2007 to present)	Not Applicable
PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS: Vice President – Tax of the Adviser (7/2011 to present); Vice President of other Investment Companies advised by the Adviser (11/2007 to present); Vice President of other Investment Companies advised by Curian Capital, LLC (11/2010 to present); Assistant Vice President – Tax of the Adviser (11/2007 to 6/2011); Assistant Vice President – Nuveen Investments (4/1999 to 8/2007); Assistant Vice President and Assistant Secretary – Nuveen Funds (4/1999 to 8/2007)
Susan S. Rhee (40) 1 Corporate Way Lansing, MI 48951	Vice President, Counsel (Chief Legal Officer) and Secretary (2/2004 to present)	Not Applicable
PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS: Senior Vice President and General Counsel of the Adviser (1/2010 to present); Chief Legal Officer (7/2004 to 12/2009) and Secretary (11/2000 to present) of the Adviser; Vice President, Counsel (Chief Legal Officer), and Secretary of other Investment Companies advised by the Adviser (2/2004 to present); Vice President, Chief Legal Officer & Secretary of other Investment Companies advised by Curian Capital, LLC (11/2010 to present); Assistant Vice President of Jackson National Life Insurance Company (8/2003 to 12/2009); Associate General Counsel of Jackson National Life Insurance Company (7/2001 to 12/2009)

TRUSTEESOFTHE JNL INVESTORS SERIES TRUST

The interested Trustee and the Officers of the Trust (other than the Chief Compliance Officer, as described below) or the Adviser do not receive any compensation from the Trust for their services as Trustees or Officers. The following persons, who are disinterested Trustees of the Trust, and the Trust’s Chief Compliance Officer, received from the Trust the compensation amounts indicated for the services as such for the twelve-month period ended December 31, 2011.

TRUSTEE	AGGREGATE COMPENSATION FROM THE TRUST1	PENSION OR  RETIREMENT BENEFITS ACCRUED AS PART OF TRUST EXPENSES	ESTIMATED  ANNUAL BENEFITS UPON RETIREMENT	TOTAL  COMPENSATION FROM THE TRUST AND FUND COMPLEX
Michael Bouchard	$2,377	$0	$0	$159,0004
William J. Crowley, Jr.	$2,638	$0	$0	$176,500
Dominic D’Annunzio	$2,414	$0	$0	$161,5005
Michelle Engler3	$3,013	$0	$0	$201,500
James Henry	$2,414	$0	$0	$161,5006
Richard McLellan	$2,325	$0	$0	$155,500
William R. Rybak	$2,602	$0	$0	$174,000
Patricia Woodworth	$2,377	$0	$0	$159,0007
Steven J. Fredricks2	$4,578	$0	$0	$306,173

¹ The fees paid to the independent Trustees are paid for combined meetings of all Funds in the Fund Complex. The fees are allocated to the Funds and affiliated investment companies on a pro-rata basis based on net assets. The total fees to all the independent Trustees are $1,348,500.

² Mr. Fredricks’ compensation is paid by the Funds for his duties as the Chief Compliance Officer of the Fund Complex. The expense is allocated to the Funds and affiliated investment companies on a pro-rata basis based on net assets.

³ Ms. Engler is an ex officio (non-voting) member of the Governance Committee. Therefore, she does not receive any compensation as a member of the Governance Committee.

⁴ Amount includes $119 deferred by Mr. Bouchard.

⁵ Amount includes $1,207 deferred by Mr. D’Annunzio.

⁶ Amount includes $2,173 deferred by Mr. Henry.

⁷ Amount includes $2,377 deferred by Ms. Woodworth.

You can obtain a copy of the current Statement of Additional Information or the most recent Annual or Semi-Annual Reports without charge, or make other inquiries, by calling 1-866-255-1935, or writing the JNL Investors Series Trust Service Center, 225 W. Wacker Drive, Suite 1200, Chicago, IL 60606.

Item 2. Code of Ethics.

As of the end of the period covered by this report, the registrant had adopted a code of ethics, as defined in Item 2 of Form N-CSR, applicable to its principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions. There were no substantive amendments or any waivers to this code of ethics during the period covered by this report. A copy of this code of ethics is filed as exhibit 12(a)(1) to this Form N-CSR.

Item 3. Audit Committee Financial Expert.

The registrant has named William J. Crowley, Jr. as an Audit Committee financial expert serving on its Audit Committee. William J. Crowley, Jr. is not an “interested person” of the Trust, as that term is defined by Section 2(a)(19) of the Investment Company Act of 1940, as amended, and is considered “independent” for purposes of this Item.

An “audit committee financial expert” is not an “expert” for any purpose, including for purposes of Section 11 of the Securities Act of 1933, as amended, as a result of being designated as an “audit committee financial expert.” Further, the designation of a person as an “audit committee financial expert” does not mean that the person has any greater duties, obligations, or liability than those imposed on the person without the “audit committee financial expert” designation. Similarly, the designation of a person as an “audit committee financial expert” does not affect the duties, obligations, or liability of any other member of the Audit Committee or Board of Trustees.

Item 4. Principal Accountant Fees and Services.

(a)-(d)

In accordance with the terms of the Trust’s Amended and Restated Administration Agreement dated December 15, 2006, for the JNL Money Market Fund, JNAM, the Fund’s administrator, was responsible for the payment of all expenses associated with the annual audit and other required services of the independent registered public accounting firm, and all expenses associated with the preparation and filing of the tax returns. Effective September 28, 2009, the Amended and Restated Administration Agreement was entered into by and between JNAM and the Trust, such that the Trust will also pay the aforementioned expenses for the JNL/PPM America Total Return Fund on a go-forward basis. On November 21, 2011, the registrant changed its fiscal year end from October 31 to December 31.

KPMG LLP (“KPMG”) was appointed by the Board of Trustees as the independent registered public accounting firm of the registrant for the fiscal years ended October 31, 2011 and December 31, 2011. The following table sets forth aggregate fees billed by KPMG for the respective period for professional services rendered to the registrant.

Fees for Services Rendered to the Registrant by KPMG

Fiscal Year	Audit Fees		Audit-Related Fees		Tax Fees		All Other Fees
October 31, 2011	$	20,600	$	0	$	4,000	$	0
December 31, 2011	$	12,360	$	0	$	4,000	$	0

The above Tax Fees for October 31, 2011 and December 31, 2011 are the aggregate fees billed for professional services by KPMG to the registrant for tax compliance, tax advice, and tax return review.

Fees for Services Rendered to Adviser Entities by KPMG

The following table sets forth the amount of fees that were billed by KPMG for the respective period to any entity controlling, controlled by, or under common control with the investment adviser that provided ongoing services to the registrant (“Adviser Entities”) that were directly related to the registrant’s operations and financial reporting.

Fiscal Year	Audit-Related Fees		Tax Fees		All Other Fees
October 31, 2011	$	53,000	$	0	$	0
December 31, 2011	$	209	$	0	$	0

The above Audit-Related Fees are the aggregate fees billed to Adviser Entities for the performance of an internal control review pursuant to Statement on Standards for Attestation Engagements No. 16 of the registrant’s adviser and administrator.

(e)(1) The Audit Committee is authorized to pre-approve non-audit services provided by the registrant’s auditors, if they find it appropriate in light of their fiduciary duties and in the exercise of their good faith business judgment and compatible with the auditors’ independence. The Chairman of the Audit Committee is authorized to approve audit and non-audit services for newly established Funds of the registrant on the same terms as the full Audit Committee previously had approved for the then existing Funds.

(e)(2) 0%

(f) Not applicable.

(g) As detailed in the tables above, the aggregate fees billed for all non-audit fees to the registrant and Adviser Entities for the fiscal year ended October 31, 2011, was $57,000. As detailed in the tables above, the aggregate fees billed for all non-audit fees to the registrant and Adviser Entities for the fiscal year ended December 31, 2011, was $4,209.

(h) For the fiscal years ended October 31, 2011 and December 31, 2011, the Audit Committee of the registrant’s Board of Trustees considered the provision of non-audit services that were rendered to the Adviser Entities that were not pre-approved pursuant to paragraph (c)(7)(ii) of Rule 2-01 of Regulation S-X, and concluded that such services were compatible with maintaining KPMG’s independence.

Item 5. Audit Committee of Listed Registrants.

Not applicable.

Item 6. Investments.

(a) Included as a part of the report to shareholders filed under Item 1.

(b) Not applicable.

Item 7. Disclosure of Proxy Voting Policies and Procedures for Closed-End Management Investment Companies.

Not applicable.

Item 8. Portfolio Managers of Closed-End Management Investment Companies.

Not applicable.

Item 9. Purchases of Equity Securities by Closed-End Management Investment Company and Affiliated Purchasers.

Not applicable.

Item 10. Submission of Matters to a Vote of Security Holders.

No material changes have been made.

Item 11. Controls and Procedures.

(a) The registrant maintains disclosure controls and procedures that are designed to ensure that information required to be disclosed in the registrant’s filings under the Securities Exchange Act of 1934, as amended, and the Investment Company Act of 1940, as amended, is recorded, processed, summarized, and reported within the periods specified in the rules and forms of the U.S. Securities and Exchange Commission. Such information is accumulated and communicated to the registrant’s management, including its principal executive officer and principal financial officer, as appropriate, to allow timely decisions regarding required disclosure. The registrant’s management, including the principal executive officer and the principal financial officer, recognizes that any set of controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives.

Within ninety (90) days prior to the filing date of this report on Form N-CSR, the registrant had carried out an evaluation, under the supervision and with the participation of the registrant’s management, including the registrant’s principal executive officer and the registrant’s principal financial officer, of the effectiveness of the design and operation of the registrant’s disclosure controls and procedures. Based on such evaluation, the registrant’s principal executive officer and principal financial officer concluded that the registrant’s disclosure controls and procedures are effective.

(b) There have been no significant changes in the registrant’s internal controls over financial reporting during the registrant’s second fiscal quarter of the period covered by this report that have materially affected, or are reasonably likely to materially affect, the registrant’s internal controls over financial reporting. There have been no significant changes in the registrant’s internal controls or in other factors that could significantly affect the internal controls subsequent to the date of their evaluation in connection with the preparation of this report on Form N-CSR.

Item 12. Exhibits.

(a) (1) Code of Ethics pursuant to Section 406 of the Sarbanes-Oxley Act of 2002 (as defined in Item 2(b) of Form N-CSR) is attached hereto.

(2) The certifications required by Rule 30a-2(a) under the Investment Company Act of 1940, as amended, are attached hereto.

(3) Not applicable.

(b) The certification required by Rule 30a-2(b) under the Investment Company Act of 1940, as amended, is attached hereto.

SIGNATURES

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

JNL Investors Series Trust
By:	/s/ Mark D. Nerud
	Mark D. Nerud
	Principal Executive Officer
Date:	February 29, 2012

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, and the Investment Company Act of 1940, as amended, 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/ Mark D. Nerud
	Mark D. Nerud
	Principal Executive Officer
Date:	February 29, 2012
By:	/s/ Gerard A.M. Oprins
	Gerard A.M. Oprins
	Principal Financial Officer
Date:	February 29, 2012

EXHIBIT LIST

Exhibit 12(a)(1)	Registrant’s Code of Ethics pursuant to Section 406 of the Sarbanes-Oxley Act of 2002.
Exhibit 12(a)(2)	Certification of the Principal Executive Officer required by Rule 30a-2(a) under the Investment Company Act of 1940, as amended.
	Certification of the Principal Financial Officer required by Rule 30a-2(a) under the Investment Company Act of 1940, as amended.
Exhibit 12(b)	Certification required by Rule 30a-2(b) under the Investment Company Act of 1940, as amended.