| 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 | -7.590 | 5.704 | -133% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 0 | 0 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 8.19B | 506M | 1,619% |
| Annual Yield % from dividends | 0.07 | 0.00 | - |
| Returns for 1 year | -14.62 | -0.34 | 4,318% |
| Returns for 3 years | -4.10 | 42.43 | -10% |
| Returns for 5 years | -11.01 | 5.91 | -186% |
| Returns for 10 years | 3.70 | N/A | - |