| 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 | 10.251 | 15.569 | 66% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 2000 | 3000 | 67% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 2.52B | 97.7B | 3% |
| Annual Yield % from dividends | 0.92 | 0.87 | 106% |
| Returns for 1 year | 9.67 | 23.48 | 41% |
| Returns for 3 years | 13.94 | 58.99 | 24% |
| Returns for 5 years | -7.79 | 33.85 | -23% |
| Returns for 10 years | 12.11 | 181.17 | 7% |