| 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 | 4.805 | 2.034 | 236% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 0 | 2500 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 6.86B | 5.66B | 121% |
| Annual Yield % from dividends | 0.00 | 0.00 | - |
| Returns for 1 year | 23.51 | 31.70 | 74% |
| Returns for 3 years | 74.51 | 149.68 | 50% |
| Returns for 5 years | -15.32 | -3.46 | 443% |
| Returns for 10 years | 81.40 | 129.77 | 63% |