| IVIFX | VTPSX | IVIFX / VTPSX | |
| Total Expense Ratio | 1.77 | 0.05 | 3,540% |
| Annual Report Gross Expense Ratio | 2.05 | 0.05 | 4,100% |
| Fund Existence | 29 years | 15 years | - |
| Gain YTD | 21.340 | 28.933 | 74% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 1000 | 100000000 | 0% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 1.42B | 554B | 0% |
| Annual Yield % from dividends | 0.00 | 2.74 | - |
| Returns for 1 year | 19.52 | 25.13 | 78% |
| Returns for 3 years | 48.85 | 49.34 | 99% |
| Returns for 5 years | 46.32 | 39.67 | 117% |
| Returns for 10 years | 55.10 | 79.51 | 69% |