Categories | Total Firms | Mean of Post Option Listing Long-Run Variance (in percentage) | Mean of Pre Option Listing Long-Run Variance (in percentage) | Change in Variance (in percentage) | T-Statistic |
All Firms | 166 | 2.1791 | 2.1843 | −0.0052 | −0.0321 |
Large Cap | 88 | 2.4830 | 2.4368 | 0.0463 | 0.1782 |
Mid Cap | 55 | 2.4633 | 2.5377 | −0.0744 | −0.4521 |
Small Cap | 23 | 0.4134 | 0.4210 | −0.0076 | −0.4351 |