| NBSSX | NPFFX | NBSSX / NPFFX | |
| Total Expense Ratio | 0.90 | 0.77 | 117% |
| Annual Report Gross Expense Ratio | 0.90 | 0.77 | 117% |
| Fund Existence | 71 years | 25 years | - |
| Gain YTD | 5.959 | 4.901 | 122% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 1000 | 250 | 400% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 816M | 170B | 0% |
| Annual Yield % from dividends | 0.25 | 0.94 | 26% |
| Returns for 1 year | 1.32 | 6.67 | 20% |
| Returns for 3 years | 49.92 | 33.53 | 149% |
| Returns for 5 years | 3.32 | 12.18 | 27% |
| Returns for 10 years | 42.36 | 105.65 | 40% |