| CSGYX | NRGSX | CSGYX / NRGSX | |
| Total Expense Ratio | 0.85 | 0.74 | 115% |
| Annual Report Gross Expense Ratio | 0.85 | 0.74 | 115% |
| Fund Existence | 16 years | 13 years | - |
| Gain YTD | 15.260 | -7.590 | -201% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 1000000 | 0 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 2.71B | 8.19B | 33% |
| Annual Yield % from dividends | 0.00 | 0.07 | - |
| Returns for 1 year | 13.08 | -14.62 | -90% |
| Returns for 3 years | 75.62 | -4.10 | -1,846% |
| Returns for 5 years | 6.36 | -11.01 | -58% |
| Returns for 10 years | 23.16 | 3.70 | 627% |