| 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 | 7.028 | 0.791 | 888% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 0 | 2500 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 6.96B | 5.66B | 123% |
| Annual Yield % from dividends | 0.00 | 0.00 | - |
| Returns for 1 year | 22.20 | 30.66 | 72% |
| Returns for 3 years | 66.85 | 123.00 | 54% |
| Returns for 5 years | -17.69 | -10.86 | 163% |
| Returns for 10 years | 93.66 | 143.49 | 65% |