| SPIDX | VFINX | SPIDX / VFINX | |
| Total Expense Ratio | 0.29 | 0.14 | 207% |
| Annual Report Gross Expense Ratio | 0.29 | 0.14 | 207% |
| Fund Existence | 29 years | 50 years | - |
| Gain YTD | 12.732 | 12.242 | 104% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 1000 | 0 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 4.87B | 1.69T | 0% |
| Annual Yield % from dividends | 0.72 | 0.97 | 75% |
| Returns for 1 year | 21.26 | 20.50 | 104% |
| Returns for 3 years | 79.36 | 75.08 | 106% |
| Returns for 5 years | 79.81 | 72.92 | 109% |
| Returns for 10 years | 277.84 | 251.01 | 111% |