| NBGNX | VISGX | NBGNX / VISGX | |
| Total Expense Ratio | 0.99 | 0.19 | 521% |
| Annual Report Gross Expense Ratio | 0.99 | 0.19 | 521% |
| Fund Existence | 38 years | 28 years | - |
| Gain YTD | 11.592 | 13.197 | 88% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 1000 | 0 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 7.45B | 47B | 16% |
| Annual Yield % from dividends | 0.20 | 0.31 | 66% |
| Returns for 1 year | -5.92 | 19.94 | -30% |
| Returns for 3 years | -3.73 | 45.49 | -8% |
| Returns for 5 years | -22.41 | 20.52 | -109% |
| Returns for 10 years | 3.86 | 167.19 | 2% |