| NBSLX | VFFSX | NBSLX / VFFSX | |
| Total Expense Ratio | 0.69 | 0.01 | 6,900% |
| Annual Report Gross Expense Ratio | 0.69 | 0.01 | 6,900% |
| Fund Existence | 19 years | 10 years | - |
| Gain YTD | 14.608 | 9.846 | 148% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 1000000 | 5000000000 | 0% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 4.86B | 1.7T | 0% |
| Annual Yield % from dividends | 0.02 | 1.04 | 2% |
| Returns for 1 year | 29.81 | 25.72 | 116% |
| Returns for 3 years | 64.66 | 72.68 | 89% |
| Returns for 5 years | 37.62 | 77.08 | 49% |
| Returns for 10 years | 108.31 | 270.25 | 40% |