| ISIPX | VFFSX | ISIPX / VFFSX | |
| Total Expense Ratio | 0.67 | 0.01 | 6,700% |
| Annual Report Gross Expense Ratio | 0.67 | 0.01 | 6,700% |
| Fund Existence | 19 years | 10 years | - |
| Gain YTD | -34.297 | 11.121 | -308% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 0 | 5000000000 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 2.95B | 1.76T | 0% |
| Annual Yield % from dividends | 1.00 | 1.05 | 95% |
| Returns for 1 year | -31.62 | 15.26 | -207% |
| Returns for 3 years | -15.82 | 70.33 | -22% |
| Returns for 5 years | -30.53 | 70.49 | -43% |
| Returns for 10 years | 14.54 | 258.63 | 6% |