| NPFCX | PRGSX | NPFCX / PRGSX | |
| Total Expense Ratio | 1.48 | 0.80 | 185% |
| Annual Report Gross Expense Ratio | 1.48 | 0.80 | 185% |
| Fund Existence | 25 years | 30 years | - |
| Gain YTD | 20.449 | 21.862 | 94% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 250 | 2500 | 10% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 165B | 7.61B | 2,168% |
| Annual Yield % from dividends | 0.00 | 0.06 | - |
| Returns for 1 year | 13.49 | 12.86 | 105% |
| Returns for 3 years | 47.67 | 62.51 | 76% |
| Returns for 5 years | 28.64 | 20.79 | 138% |
| Returns for 10 years | 91.17 | 192.02 | 47% |