| NSIUX | VSGBX | NSIUX / VSGBX | |
| Total Expense Ratio | 0.44 | 0.20 | 220% |
| Annual Report Gross Expense Ratio | 0.76 | 0.20 | 380% |
| Fund Existence | 27 years | 39 years | - |
| Gain YTD | -0.450 | -2.415 | 19% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 2500 | 3000 | 83% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 25.7M | 4.46B | 1% |
| Annual Yield % from dividends | 3.44 | 3.89 | 88% |
| Returns for 1 year | 0.52 | -2.42 | -21% |
| Returns for 3 years | 11.65 | 2.02 | 577% |
| Returns for 5 years | 4.75 | -7.46 | -64% |
| Returns for 10 years | 12.27 | -3.13 | -392% |