| VSIAX | VSIIX | VSIAX / VSIIX | |
| Total Expense Ratio | 0.07 | 0.06 | 117% |
| Annual Report Gross Expense Ratio | 0.07 | 0.06 | 117% |
| Fund Existence | 14 years | 26 years | - |
| Gain YTD | 5.811 | 5.810 | 100% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 3000 | 5000000 | 0% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 58.3B | 58.3B | 100% |
| Annual Yield % from dividends | 2.02 | 2.03 | 100% |
| Returns for 1 year | -0.53 | -0.54 | 99% |
| Returns for 3 years | 27.41 | 27.41 | 100% |
| Returns for 5 years | 65.19 | 65.22 | 100% |
| Returns for 10 years | 117.18 | 117.27 | 100% |