| IRGFX | NRGSX | IRGFX / NRGSX | |
| Total Expense Ratio | 0.76 | 0.74 | 103% |
| Annual Report Gross Expense Ratio | 0.92 | 0.74 | 124% |
| Fund Existence | 11 years | 13 years | - |
| Gain YTD | 5.249 | -15.960 | -33% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 1000000 | 0 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 1.09B | 8.19B | 13% |
| Annual Yield % from dividends | 0.00 | 0.07 | - |
| Returns for 1 year | 2.97 | -17.45 | -17% |
| Returns for 3 years | 30.02 | 1.18 | 2,536% |
| Returns for 5 years | -25.12 | -21.20 | 118% |
| Returns for 10 years | 21.81 | 6.91 | 316% |