| VBISX | VIITX | VBISX / VIITX | |
| Total Expense Ratio | 0.15 | 0.02 | 750% |
| Annual Report Gross Expense Ratio | 0.15 | 0.02 | 750% |
| Fund Existence | 32 years | 29 years | - |
| Gain YTD | -1.354 | 0.564 | -240% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 3000 | 10000000 | 0% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 69.9B | 30.8B | 227% |
| Annual Yield % from dividends | 3.89 | 4.16 | 94% |
| Returns for 1 year | -0.29 | 5.12 | -6% |
| Returns for 3 years | 2.51 | 15.12 | 17% |
| Returns for 5 years | -5.42 | 6.40 | -85% |
| Returns for 10 years | 0.92 | 19.60 | 5% |