| ISTIX | PRGTX | ISTIX / PRGTX | |
| Total Expense Ratio | 0.92 | 0.93 | 99% |
| Annual Report Gross Expense Ratio | 0.93 | 0.93 | 100% |
| Fund Existence | 19 years | 26 years | - |
| Gain YTD | 40.182 | 34.991 | 115% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 0 | 2500 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 8.55B | 8.4B | 102% |
| Annual Yield % from dividends | 0.00 | 0.00 | - |
| Returns for 1 year | 42.27 | 54.68 | 77% |
| Returns for 3 years | 94.35 | 144.14 | 65% |
| Returns for 5 years | 2.16 | 15.28 | 14% |
| Returns for 10 years | 127.57 | 159.15 | 80% |