| VSIAX | VSOIX | VSIAX / VSOIX | |
| Total Expense Ratio | 0.07 | 0.90 | 8% |
| Annual Report Gross Expense Ratio | 0.07 | 0.90 | 8% |
| Fund Existence | 15 years | 19 years | - |
| Gain YTD | 15.183 | 19.520 | 78% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 3000 | 2000000 | 0% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 67.8B | 4.51B | 1,505% |
| Annual Yield % from dividends | 1.77 | 0.78 | 227% |
| Returns for 1 year | 20.71 | 19.39 | 107% |
| Returns for 3 years | 44.11 | 11.76 | 375% |
| Returns for 5 years | 47.38 | 3.23 | 1,468% |
| Returns for 10 years | 132.23 | 47.48 | 278% |