| ISIVX | VFFSX | ISIVX / VFFSX | |
| Total Expense Ratio | 0.80 | 0.01 | 8,000% |
| Annual Report Gross Expense Ratio | 0.80 | 0.01 | 8,000% |
| Fund Existence | 16 years | 9 years | - |
| Gain YTD | 0.474 | 12.736 | 4% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 0 | 5000000000 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 2.61B | 1.46T | 0% |
| Annual Yield % from dividends | 0.69 | 1.13 | 61% |
| Returns for 1 year | -0.01 | 11.90 | -0% |
| Returns for 3 years | 25.80 | 67.07 | 38% |
| Returns for 5 years | 14.77 | 86.25 | 17% |
| Returns for 10 years | 59.29 | N/A | - |