| BKTSX | VFFSX | BKTSX / VFFSX | |
| Total Expense Ratio | 0.02 | 0.01 | 200% |
| Annual Report Gross Expense Ratio | 0.02 | 0.01 | 200% |
| Fund Existence | 10 years | 10 years | - |
| Gain YTD | 18.286 | 17.891 | 102% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 5000000 | 5000000000 | 0% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 4.49B | 1.48T | 0% |
| Annual Yield % from dividends | 1.18 | 1.13 | 105% |
| Returns for 1 year | 15.28 | 14.87 | 103% |
| Returns for 3 years | 85.22 | 81.45 | 105% |
| Returns for 5 years | 88.41 | 87.59 | 101% |
| Returns for 10 years | 271.91 | N/A | - |