| 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 | 50 years | - |
| Gain YTD | 6.791 | 9.459 | 72% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 5000000 | 0 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 1.21B | 1.67T | 0% |
| Annual Yield % from dividends | 0.65 | 0.97 | 68% |
| Returns for 1 year | 13.87 | 18.18 | 76% |
| Returns for 3 years | 34.70 | 63.86 | 54% |
| Returns for 5 years | 36.85 | 70.57 | 52% |
| Returns for 10 years | 160.01 | 247.72 | 65% |