| FXAIX | NSBFX | FXAIX / NSBFX | |
| Total Expense Ratio | 0.01 | 0.61 | 2% |
| Annual Report Gross Expense Ratio | 0.01 | 0.61 | 2% |
| Fund Existence | 15 years | 13 years | - |
| Gain YTD | 1.998 | 1.728 | 116% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 0 | 1000000 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 753B | 6.69B | 11,251% |
| Annual Yield % from dividends | 1.10 | 1.13 | 97% |
| Returns for 1 year | 17.83 | 1.63 | 1,094% |
| Returns for 3 years | 75.94 | 28.28 | 269% |
| Returns for 5 years | 93.74 | 42.83 | 219% |
| Returns for 10 years | 310.97 | 127.94 | 243% |