| 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 | 10.827 | 15.053 | 72% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 3000 | 2000000 | 0% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 65.5B | 4.58B | 1,432% |
| Annual Yield % from dividends | 1.76 | 0.83 | 212% |
| Returns for 1 year | 22.31 | 19.67 | 113% |
| Returns for 3 years | 46.70 | 13.00 | 359% |
| Returns for 5 years | 33.61 | -5.60 | -600% |
| Returns for 10 years | 134.58 | 47.02 | 286% |