| BSFIX | NRGSX | BSFIX / NRGSX | |
| Total Expense Ratio | 1.06 | 0.74 | 143% |
| Annual Report Gross Expense Ratio | 1.06 | 0.74 | 143% |
| Fund Existence | 17 years | 14 years | - |
| Gain YTD | -1.620 | 11.425 | -14% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 1000000 | 0 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 2.53B | 6.95B | 36% |
| Annual Yield % from dividends | 0.00 | 0.44 | - |
| Returns for 1 year | -12.59 | -8.11 | 155% |
| Returns for 3 years | -3.94 | 2.69 | -146% |
| Returns for 5 years | -33.82 | -23.14 | 146% |
| Returns for 10 years | -3.00 | 10.53 | -28% |