| NSIVX | VDIPX | NSIVX / VDIPX | |
| Total Expense Ratio | 0.98 | 0.02 | 4,900% |
| Annual Report Gross Expense Ratio | 1.13 | 0.02 | 5,650% |
| Fund Existence | 6 years | 12 years | - |
| Gain YTD | 9.341 | 15.650 | 60% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 1000000 | 100000000 | 1% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 77.5M | 324B | 0% |
| Annual Yield % from dividends | 2.53 | 2.49 | 101% |
| Returns for 1 year | 4.49 | 20.80 | 22% |
| Returns for 3 years | 34.35 | 62.00 | 55% |
| Returns for 5 years | 29.28 | 40.46 | 72% |
| Returns for 10 years | N/A | 108.74 | - |