Stock prices for major US gunmakers increased Monday, just hours after the deadliest mass shooting in American history.

Shares of Smith & Wesson parent American Outdoor Brands finished the day up 3.2 percent while Sturm, Ruger & Co. climbed 3.4 percent. Vista Outdoor, which sells firearms and ammunition, was also selling at higher prices, ending the day up 6.4 percent.

Analysts believe that the demand in guns is due to the fear of more regulatory restrictions on firearms.

Since the election of President Trump, firearm-company stocks have slumped.