Last Updated Oct 2, 2017 4:21 PM EDT
Gun manufacturers' stocks are rising in the wake ofin U.S. history, which left at least 59 people dead and more than 500 wounded.
Gun manufacturer shares often rally in the wake of mass shootings, as it is expected gun owners fear a regulatory crackdown.
In the wake of Sunday night's shootings at the Mandalay Bay casino, there were renewed calls from Democratic politicians to regulate firearms. Both senators from Connecticut -- where the 2012 Sandy Hook school shooting left 20 children and six teachers and staff members dead -- issued statements expressing frustration with Congressional inaction.