| NRGSX | NSRSX | NRGSX / NSRSX | |
| Total Expense Ratio | 0.74 | 0.81 | 91% |
| Annual Report Gross Expense Ratio | 0.74 | 1.04 | 71% |
| Fund Existence | 13 years | 7 years | - |
| Gain YTD | 6.345 | 8.145 | 78% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 0 | 0 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 8.57B | 555M | 1,544% |
| Annual Yield % from dividends | 0.50 | 0.00 | - |
| Returns for 1 year | -12.03 | 10.43 | -115% |
| Returns for 3 years | 0.11 | 48.94 | 0% |
| Returns for 5 years | -21.40 | -4.30 | 497% |
| Returns for 10 years | 25.72 | N/A | - |