| 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 | 11.735 | 14.023 | 84% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 2000 | 5000000000 | 0% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 24.2B | 1.69T | 1% |
| Annual Yield % from dividends | 0.03 | 1.08 | 3% |
| Returns for 1 year | -4.38 | 20.60 | -21% |
| Returns for 3 years | 15.77 | 75.98 | 21% |
| Returns for 5 years | -1.47 | 74.78 | -2% |
| Returns for 10 years | 67.63 | 258.38 | 26% |