| NTIAX | VEXMX | NTIAX / VEXMX | |
| Total Expense Ratio | 0.45 | 0.19 | 237% |
| Annual Report Gross Expense Ratio | 0.58 | 0.19 | 305% |
| Fund Existence | 25 years | 38 years | - |
| Gain YTD | 3.062 | 10.742 | 29% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 2000 | 3000 | 67% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 2.51B | 83.9B | 3% |
| Annual Yield % from dividends | 1.03 | 0.96 | 107% |
| Returns for 1 year | -8.02 | 5.70 | -141% |
| Returns for 3 years | 6.30 | 48.47 | 13% |
| Returns for 5 years | -0.72 | 47.59 | -2% |
| Returns for 10 years | 7.73 | 156.89 | 5% |