Series and Classes/Contracts Information:
| Existing | |||
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000001243 | LARGE CAP CORE FUND | ||
| Class/Contract C000003389 | LARGE CAP CORE FUND | NOLCX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000001244 | SMALL CAP CORE FUND | ||
| Class/Contract C000219382 | Class K | ||
| Class/Contract C000219383 | Class I | ||
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000001245 | SMALL CAP INDEX FUND | ||
| Class/Contract C000003391 | SMALL CAP INDEX FUND | NSIDX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000001246 | SMALL CAP VALUE FUND | ||
| Class/Contract C000003392 | SMALL CAP VALUE FUND | NOSGX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000001247 | STOCK INDEX FUND | ||
| Class/Contract C000003393 | STOCK INDEX FUND | NOSIX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000001249 | ARIZONA TAX-EXEMPT FUND | ||
| Class/Contract C000003395 | ARIZONA TAX-EXEMPT FUND | NOAZX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000001250 | CALIFORNIA INTERMEDIATE TAX-EXEMPT FUND | ||
| Class/Contract C000003396 | CALIFORNIA INTERMEDIATE TAX-EXEMPT FUND | NCITX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000001251 | CALIFORNIA TAX-EXEMPT FUND | ||
| Class/Contract C000003397 | CALIFORNIA TAX-EXEMPT FUND | NCATX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000001252 | FIXED INCOME FUND | ||
| Class/Contract C000003398 | FIXED INCOME FUND | NOFIX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000001256 | HIGH YIELD FIXED INCOME FUND | ||
| Class/Contract C000003402 | HIGH YIELD FIXED INCOME FUND | NHFIX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000001257 | HIGH YIELD MUNICIPAL FUND | ||
| Class/Contract C000003403 | HIGH YIELD MUNICIPAL FUND | NHYMX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000001258 | INTERMEDIATE TAX-EXEMPT FUND | ||
| Class/Contract C000003404 | INTERMEDIATE TAX-EXEMPT FUND | NOITX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000001259 | LIMITED TERM U.S. GOVERNMENT FUND | ||
| Class/Contract C000003405 | LIMITED TERM U.S. GOVERNMENT FUND | NSIUX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000001260 | TAX-EXEMPT FUND | ||
| Class/Contract C000003406 | TAX-EXEMPT FUND | NOTEX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000001261 | U.S. GOVERNMENT FUND | ||
| Class/Contract C000003407 | U.S. GOVERNMENT FUND | NOUGX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000001266 | U.S. GOVERNMENT MONEY MARKET FUND | ||
| Class/Contract C000003412 | U.S. GOVERNMENT MONEY MARKET FUND | NOGXX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000001267 | U.S. GOVERNMENT SELECT MONEY MARKET FUND | ||
| Class/Contract C000003413 | U.S. GOVERNMENT SELECT MONEY MARKET FUND | NOSXX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000001268 | INTERNATIONAL EQUITY INDEX FUND | ||
| Class/Contract C000003414 | INTERNATIONAL EQUITY INDEX FUND | NOINX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000001269 | INCOME EQUITY FUND | ||
| Class/Contract C000003415 | INCOME EQUITY FUND | NOIEX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000001270 | INTERNATIONAL EQUITY FUND | ||
| Class/Contract C000003416 | INTERNATIONAL EQUITY FUND | NOIGX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000001271 | LARGE CAP VALUE FUND | ||
| Class/Contract C000003417 | LARGE CAP VALUE FUND | NOLVX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000001273 | MID CAP INDEX FUND | ||
| Class/Contract C000003419 | MID CAP INDEX FUND | NOMIX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000005358 | EMERGING MARKETS EQUITY INDEX FUND | ||
| Class/Contract C000014609 | EMERGING MARKETS EQUITY INDEX FUND | NOEMX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000012492 | ACTIVE M INTERNATIONAL EQUITY FUND | ||
| Class/Contract C000033959 | ACTIVE M INTERNATIONAL EQUITY FUND | NMIEX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000012717 | GLOBAL REAL ESTATE INDEX FUND | ||
| Class/Contract C000034255 | GLOBAL REAL ESTATE INDEX FUND | NGREX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000015790 | BOND INDEX FUND | ||
| Class/Contract C000043366 | BOND INDEX FUND | NOBOX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000018524 | LIMITED TERM TAX-EXEMPT FUND | ||
| Class/Contract C000051415 | LIMITED TERM TAX-EXEMPT FUND | NSITX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000019579 | World Selection Index Fund | ||
| Class/Contract C000219384 | Class K | NSRKX | |
| Class/Contract C000219385 | Class I | NSRIX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000024144 | ACTIVE M EMERGING MARKETS EQUITY FUND | ||
| Class/Contract C000070886 | ACTIVE M EMERGING MARKETS EQUITY FUND | NMMEX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000024145 | MULTI-MANAGER GLOBAL REAL ESTATE FUND | ||
| Class/Contract C000070887 | MULTI-MANAGER GLOBAL REAL ESTATE FUND | NMMGX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000025872 | ULTRA-SHORT FIXED INCOME FUND | ||
| Class/Contract C000077366 | ULTRA-SHORT FIXED INCOME FUND | NUSFX | |
| Class/Contract C000232975 | Siebert Williams Shank Shares | ||
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000025873 | TAX-ADVANTAGED ULTRA-SHORT FIXED INCOME FUND | ||
| Class/Contract C000077367 | TAX-ADVANTAGED ULTRA-SHORT FIXED INCOME FUND | NTAUX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000026479 | MULTI-MANAGER HIGH YIELD OPPORTUNITY FUND | ||
| Class/Contract C000079432 | MULTI-MANAGER HIGH YIELD OPPORTUNITY FUND | NMHYX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000033427 | GLOBAL TACTICAL ASSET ALLOCATION FUND | ||
| Class/Contract C000102783 | GLOBAL TACTICAL ASSET ALLOCATION FUND | BBALX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000037667 | MULTI-MANAGER GLOBAL LISTED INFRASTRUCTURE FUND | ||
| Class/Contract C000116140 | MULTI-MANAGER GLOBAL LISTED INFRASTRUCTURE FUND | NMFIX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000038895 | CORE BOND FUND | ||
| Class/Contract C000119673 | CORE BOND FUND | NOCBX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000038896 | SHORT BOND FUND | ||
| Class/Contract C000119674 | SHORT BOND FUND | BSBAX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000038897 | U.S.TREASURY INDEX FUND | ||
| Class/Contract C000119675 | U.S. TREASURY INDEX FUND | BTIAX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916620 | |||
| Series S000055816 | U.S. Quality ESG Fund | ||
| Class/Contract C000219386 | Class I | ||
| Class/Contract C000219387 | Class K | ||
EIN.: 391777365 | State of Incorp.: DE | Fiscal Year End: 0331
Type: 24F-2NT | Act: 33 | File No.: 033-73404 | Film No.: 251072749