| 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 | 8.949 | 15.348 | 58% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 0 | 0 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 216M | 183B | 0% |
| Annual Yield % from dividends | 0.00 | 1.08 | - |
| Returns for 1 year | 26.15 | 27.66 | 95% |
| Returns for 3 years | 23.14 | 57.38 | 40% |
| Returns for 5 years | -23.66 | 33.59 | -70% |
| Returns for 10 years | -12.59 | 172.93 | -7% |