Gunmakers' stocks rose Monday morning, just a day after the mass shooting at a gay nightclub in Orlando, Fla., that left 50 people dead and 53 others wounded.

Smith & Wesson shares and Sturm, Ruger & Company shares, for example, rose by nearly 10 percent at the open.

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The attack at the Orlando nightclub Sunday morning is the deadliest mass shooting incident in U.S. history. The shooter, Omar Mateen, died in a shootout with law enforcement.

Gunmakers' shares spiked after previous mass shootings, as lawmakers have called for stricter gun control laws.

Presumptive Democratic presidential nominee Hillary Clinton Hillary Diane Rodham ClintonJeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Momentum growing among Republicans for Supreme Court vote before Election Day Warning signs flash for Lindsey Graham in South Carolina MORE on Monday renewed a call for gun control. She said Mateen used a "weapon of war." Law-abiding Americans have a right to own a gun, she said, but added that the U.S. needs "reasonable, common-sense measures to try to keep people safe from guns."

In a terrorism speech later Monday, she called for a crackdown on assault weapons.

"I believe weapons of war have no place on our streets," Clinton said.

She said during the speech that a person under watch by the FBI for suspected terrorist links should not be able to purchase a gun "with no questions asked."

President Obama on Sunday also called for stricter gun control measures. He said the shooting was a "further reminder of how easy it is for someone to get their hands on a weapon that lets them shoot people in a school, or a house of worship, or a movie theater, or a nightclub."