| NBGAX | VISGX | NBGAX / VISGX | |
| Total Expense Ratio | 1.34 | 0.19 | 705% |
| Annual Report Gross Expense Ratio | 1.34 | 0.19 | 705% |
| Fund Existence | 29 years | 28 years | - |
| Gain YTD | -8.020 | 2.809 | -285% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 0 | 3000 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 8.37B | 39.7B | 21% |
| Annual Yield % from dividends | 0.00 | 0.43 | - |
| Returns for 1 year | -15.53 | -0.01 | 215,424% |
| Returns for 3 years | -5.78 | 39.58 | -15% |
| Returns for 5 years | -13.98 | 19.20 | -73% |
| Returns for 10 years | -20.47 | 135.04 | -15% |