| NRGSX | NSRSX | NRGSX / NSRSX | |
| Total Expense Ratio | 0.74 | 0.81 | 91% |
| Annual Report Gross Expense Ratio | 0.74 | 1.01 | 73% |
| Fund Existence | 13 years | 8 years | - |
| Gain YTD | 13.305 | 9.844 | 135% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 0 | 0 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 7.53B | 657M | 1,146% |
| Annual Yield % from dividends | 0.45 | 0.00 | - |
| Returns for 1 year | -3.03 | 14.74 | -21% |
| Returns for 3 years | -1.68 | 43.17 | -4% |
| Returns for 5 years | -21.75 | 3.89 | -559% |
| Returns for 10 years | 13.23 | N/A | - |