| PRBLX | VFFSX | PRBLX / VFFSX | |
| Total Expense Ratio | 0.81 | 0.01 | 8,100% |
| Annual Report Gross Expense Ratio | 0.85 | 0.01 | 8,500% |
| Fund Existence | 34 years | 10 years | - |
| Gain YTD | 6.726 | 11.210 | 60% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 2000 | 5000000000 | 0% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 24.1B | 1.6T | 2% |
| Annual Yield % from dividends | 0.03 | 1.04 | 3% |
| Returns for 1 year | -2.59 | 28.07 | -9% |
| Returns for 3 years | 15.20 | 77.67 | 20% |
| Returns for 5 years | 1.05 | 81.48 | 1% |
| Returns for 10 years | 65.97 | 263.64 | 25% |