| TNIBX | VSIBX | TNIBX / VSIBX | |
| Total Expense Ratio | 0.79 | 0.75 | 105% |
| Annual Report Gross Expense Ratio | 0.79 | 1.54 | 51% |
| Fund Existence | 9 years | 1 year | - |
| Gain YTD | 0.017 | 12.279 | 0% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 2500 | 0 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 10.1B | 16.9M | 59,763% |
| Annual Yield % from dividends | 3.16 | 0.00 | - |
| Returns for 1 year | 0.85 | 15.83 | 5% |
| Returns for 3 years | 13.70 | -88.59 | -15% |
| Returns for 5 years | -6.31 | -89.90 | 7% |
| Returns for 10 years | N/A | -88.30 | - |