| IVPSX | NAESX | IVPSX / NAESX | |
| Total Expense Ratio | 1.12 | 0.17 | 659% |
| Annual Report Gross Expense Ratio | 1.27 | 0.17 | 747% |
| Fund Existence | 25 years | 66 years | - |
| Gain YTD | 10.156 | 18.339 | 55% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 0 | 0 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 214M | 183B | 0% |
| Annual Yield % from dividends | 0.00 | 1.10 | - |
| Returns for 1 year | 20.42 | 24.75 | 82% |
| Returns for 3 years | 20.32 | 58.17 | 35% |
| Returns for 5 years | -19.14 | 42.07 | -45% |
| Returns for 10 years | -18.83 | 156.41 | -12% |