| 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 | 15.106 | 15.096 | 100% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 3000 | 5000000 | 0% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 65.5B | 65.5B | 100% |
| Annual Yield % from dividends | 1.77 | 1.78 | 99% |
| Returns for 1 year | 21.17 | 21.17 | 100% |
| Returns for 3 years | 50.33 | 50.32 | 100% |
| Returns for 5 years | 45.42 | 45.45 | 100% |
| Returns for 10 years | 138.80 | 138.83 | 100% |