| SPIDX | VFFSX | SPIDX / VFFSX | |
| Total Expense Ratio | 0.29 | 0.01 | 2,900% |
| Annual Report Gross Expense Ratio | 0.29 | 0.01 | 2,900% |
| Fund Existence | 29 years | 10 years | - |
| Gain YTD | 10.052 | 9.846 | 102% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 1000 | 5000000000 | 0% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 4.74B | 1.7T | 0% |
| Annual Yield % from dividends | 0.72 | 1.04 | 69% |
| Returns for 1 year | 26.54 | 25.72 | 103% |
| Returns for 3 years | 77.04 | 72.68 | 106% |
| Returns for 5 years | 84.17 | 77.08 | 109% |
| Returns for 10 years | 297.27 | 270.25 | 110% |