| VBIRX | VBISX | VBIRX / VBISX | |
| Total Expense Ratio | 0.06 | 0.15 | 40% |
| Annual Report Gross Expense Ratio | 0.06 | 0.15 | 40% |
| Fund Existence | 25 years | 32 years | - |
| Gain YTD | -1.451 | -1.451 | 100% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 3000 | 3000 | 100% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 70.4B | 70.4B | 100% |
| Annual Yield % from dividends | 3.99 | 3.89 | 102% |
| Returns for 1 year | -0.97 | -0.97 | 100% |
| Returns for 3 years | 2.93 | 2.93 | 100% |
| Returns for 5 years | -5.16 | -5.16 | 100% |
| Returns for 10 years | 0.39 | 0.34 | 115% |