| NSIUX | VSGBX | NSIUX / VSGBX | |
| Total Expense Ratio | 0.44 | 0.20 | 220% |
| Annual Report Gross Expense Ratio | 0.73 | 0.20 | 365% |
| Fund Existence | 26 years | 38 years | - |
| Gain YTD | 4.954 | 1.872 | 265% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 2500 | 3000 | 83% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 25.6M | 4.4B | 1% |
| Annual Yield % from dividends | 3.25 | 3.63 | 89% |
| Returns for 1 year | 5.34 | 1.97 | 271% |
| Returns for 3 years | 13.07 | 3.33 | 392% |
| Returns for 5 years | 4.21 | -5.95 | -71% |
| Returns for 10 years | 13.99 | 0.70 | 2,009% |