| VBTLX | VTBIX | VBTLX / VTBIX | |
| Total Expense Ratio | 0.04 | 0.09 | 44% |
| Annual Report Gross Expense Ratio | 0.04 | 0.09 | 44% |
| Fund Existence | 24 years | 17 years | - |
| Gain YTD | 3.605 | 3.098 | 116% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 3000 | 0 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 384B | 348B | 110% |
| Annual Yield % from dividends | 3.83 | 3.84 | 100% |
| Returns for 1 year | 3.60 | 3.10 | 116% |
| Returns for 3 years | 3.39 | 2.77 | 122% |
| Returns for 5 years | -15.14 | -16.19 | 93% |
| Returns for 10 years | -6.29 | -7.62 | 83% |