| NRGEX | PRDSX | NRGEX / PRDSX | |
| Total Expense Ratio | 0.02 | 0.80 | 2% |
| Annual Report Gross Expense Ratio | 0.68 | 0.80 | 85% |
| Fund Existence | 5 years | 29 years | - |
| Gain YTD | 17.895 | 22.240 | 80% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 0 | 2500 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 7.51B | 9.88B | 76% |
| Annual Yield % from dividends | 1.15 | 0.00 | - |
| Returns for 1 year | -0.68 | 21.45 | -3% |
| Returns for 3 years | 7.96 | 40.33 | 20% |
| Returns for 5 years | N/A | 6.91 | - |
| Returns for 10 years | N/A | 99.65 | - |