1920

Citation: A Century of Stock Market Liquidity and Trading Costs, Charles M. Jones, Columbia Business School - Finance and Economics: May 23, 2002 (Appendix 2)

May 8, 1919 to October 30, 1924
Share price                             Minimum commission per 100 shares
$1 to $9.875                           $7.50
$10 to $124.875                    $15
$125 and over                        $20