| NTIAX | VEXMX | NTIAX / VEXMX | |
| Total Expense Ratio | 0.45 | 0.19 | 237% |
| Annual Report Gross Expense Ratio | 0.59 | 0.19 | 311% |
| Fund Existence | 26 years | 39 years | - |
| Gain YTD | 11.788 | 17.587 | 67% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 2000 | 3000 | 67% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 2.51B | 93.6B | 3% |
| Annual Yield % from dividends | 0.94 | 0.90 | 104% |
| Returns for 1 year | 11.20 | 23.84 | 47% |
| Returns for 3 years | 20.14 | 69.63 | 29% |
| Returns for 5 years | -7.23 | 35.97 | -20% |
| Returns for 10 years | 11.54 | 177.74 | 6% |