| NSBFX | VFFSX | NSBFX / VFFSX | |
| Total Expense Ratio | 0.62 | 0.01 | 6,200% |
| Annual Report Gross Expense Ratio | 0.62 | 0.01 | 6,200% |
| Fund Existence | 13 years | 9 years | - |
| Gain YTD | 10.088 | 16.668 | 61% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 1000000 | 5000000000 | 0% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 6.76B | 1.46T | 0% |
| Annual Yield % from dividends | 1.08 | 1.13 | 95% |
| Returns for 1 year | 2.68 | 14.56 | 18% |
| Returns for 3 years | 35.68 | 71.84 | 50% |
| Returns for 5 years | 53.14 | 91.34 | 58% |
| Returns for 10 years | 116.99 | N/A | - |