| 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 | 28 years | 9 years | - |
| Gain YTD | 11.290 | 10.822 | 104% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 1000 | 5000000000 | 0% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 3.93B | 1.37T | 0% |
| Annual Yield % from dividends | 0.88 | 1.18 | 75% |
| Returns for 1 year | 18.98 | 18.23 | 104% |
| Returns for 3 years | 71.93 | 66.50 | 108% |
| Returns for 5 years | 95.72 | 89.88 | 106% |
| Returns for 10 years | 253.52 | N/A | - |