| 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 | 12.177 | 17.948 | 68% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 1000000 | 100000000 | 1% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 86.6M | 315B | 0% |
| Annual Yield % from dividends | 2.56 | 2.57 | 100% |
| Returns for 1 year | 8.89 | 26.25 | 34% |
| Returns for 3 years | 39.85 | 67.57 | 59% |
| Returns for 5 years | 33.68 | 46.97 | 72% |
| Returns for 10 years | N/A | 107.13 | - |