| 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 | 10 years | - |
| Gain YTD | 17.713 | 17.916 | 99% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 1000 | 5000000000 | 0% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 4.32B | 1.48T | 0% |
| Annual Yield % from dividends | 0.83 | 1.13 | 74% |
| Returns for 1 year | 14.65 | 14.85 | 99% |
| Returns for 3 years | 84.04 | 80.76 | 104% |
| Returns for 5 years | 93.63 | 87.63 | 107% |
| Returns for 10 years | 261.73 | N/A | - |