| 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 | 16.879 | 16.869 | 100% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 3000 | 5000000 | 0% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 68.2B | 68.2B | 100% |
| Annual Yield % from dividends | 1.75 | 1.77 | 99% |
| Returns for 1 year | 17.81 | 17.80 | 100% |
| Returns for 3 years | 52.86 | 52.87 | 100% |
| Returns for 5 years | 46.90 | 46.91 | 100% |
| Returns for 10 years | 137.41 | 137.42 | 100% |