| BIRKX | VFINX | BIRKX / VFINX | |
| Total Expense Ratio | 0.43 | 0.14 | 307% |
| Annual Report Gross Expense Ratio | 0.51 | 0.14 | 364% |
| Fund Existence | 10 years | 49 years | - |
| Gain YTD | 11.565 | 12.705 | 91% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 5000000 | 0 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 970M | 1.46T | 0% |
| Annual Yield % from dividends | 0.77 | 1.02 | 75% |
| Returns for 1 year | 5.30 | 11.88 | 45% |
| Returns for 3 years | 44.13 | 66.96 | 66% |
| Returns for 5 years | 50.49 | 86.13 | 59% |
| Returns for 10 years | N/A | 216.80 | - |