| ISTIX | PRGTX | ISTIX / PRGTX | |
| Total Expense Ratio | 0.92 | 0.92 | 100% |
| Annual Report Gross Expense Ratio | 0.93 | 0.92 | 101% |
| Fund Existence | 19 years | 25 years | - |
| Gain YTD | 20.503 | 27.277 | 75% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 0 | 2500 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 6.67B | 5.72B | 117% |
| Annual Yield % from dividends | 0.00 | 0.00 | - |
| Returns for 1 year | 16.45 | 22.97 | 72% |
| Returns for 3 years | 81.28 | 165.23 | 49% |
| Returns for 5 years | -16.74 | -3.38 | 495% |
| Returns for 10 years | 53.59 | 95.80 | 56% |