| NBRIX | VGSIX | NBRIX / VGSIX | |
| Total Expense Ratio | 0.85 | 0.27 | 315% |
| Annual Report Gross Expense Ratio | 1.03 | 0.27 | 381% |
| Fund Existence | 18 years | 30 years | - |
| Gain YTD | 0.894 | 1.326 | 67% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 1000000 | 0 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 625M | 64B | 1% |
| Annual Yield % from dividends | 2.23 | 3.68 | 61% |
| Returns for 1 year | -2.03 | 3.04 | -67% |
| Returns for 3 years | 5.36 | 9.55 | 56% |
| Returns for 5 years | 3.79 | 22.14 | 17% |
| Returns for 10 years | 27.68 | 65.86 | 42% |