| 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 | 30.044 | 22.675 | 132% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 0 | 2500 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 6.48B | 5.51B | 118% |
| Annual Yield % from dividends | 0.00 | 0.00 | - |
| Returns for 1 year | 16.17 | 23.15 | 70% |
| Returns for 3 years | 49.10 | 135.85 | 36% |
| Returns for 5 years | -10.10 | -0.23 | 4,316% |
| Returns for 10 years | 59.70 | 72.44 | 82% |