| VSIAX | VSIIX | VSIAX / VSIIX | |
| Total Expense Ratio | 0.07 | 0.05 | 140% |
| Annual Report Gross Expense Ratio | 0.07 | 0.05 | 140% |
| Fund Existence | 15 years | 27 years | - |
| Gain YTD | 10.629 | 10.625 | 100% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 3000 | 5000000 | 0% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 64.9B | 64.9B | 100% |
| Annual Yield % from dividends | 1.76 | 1.77 | 99% |
| Returns for 1 year | 24.92 | 24.94 | 100% |
| Returns for 3 years | 49.92 | 49.92 | 100% |
| Returns for 5 years | 34.49 | 34.51 | 100% |
| Returns for 10 years | 130.85 | 130.90 | 100% |