| NSIUX | VFIRX | NSIUX / VFIRX | |
| Total Expense Ratio | 0.44 | 0.10 | 440% |
| Annual Report Gross Expense Ratio | 0.73 | 0.10 | 730% |
| Fund Existence | 27 years | 26 years | - |
| Gain YTD | 0.219 | -1.408 | -16% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 2500 | 50000 | 5% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 27.1M | 5.76B | 0% |
| Annual Yield % from dividends | 3.44 | 3.86 | 89% |
| Returns for 1 year | 2.14 | -1.01 | -212% |
| Returns for 3 years | 12.79 | 0.62 | 2,077% |
| Returns for 5 years | 5.48 | -8.18 | -67% |
| Returns for 10 years | 12.99 | -5.13 | -253% |