| SPISX | VFFSX | SPISX / VFFSX | |
| Total Expense Ratio | 0.19 | 0.01 | 1,900% |
| Annual Report Gross Expense Ratio | 0.19 | 0.01 | 1,900% |
| Fund Existence | 9 years | 10 years | - |
| Gain YTD | 1.761 | 1.233 | 143% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 1000000 | 5000000000 | 0% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 4.31B | 1.48T | 0% |
| Annual Yield % from dividends | 0.82 | 1.14 | 72% |
| Returns for 1 year | 20.28 | 18.66 | 109% |
| Returns for 3 years | 79.64 | 73.65 | 108% |
| Returns for 5 years | 92.11 | 84.23 | 109% |
| Returns for 10 years | N/A | N/A | - |