Why Investors Bet on Gun Sales After a Mass Shooting

Since Donald Trump took office, sales have been down. One explanation is the inverse of why stocks perk up after a shooting: When government is controlled by a party that is unlikely to pass any gun-control legislation, that limited-time-only feeling becomes much less potent. Conversely, a frequent line among those who follow the industry is that Barack Obama, who regularly signaled his interest in gun control, was the best gun salesman on earth.