Investor site Motley Fool examines video game and gun company stocks in wake of shooting

Investors with stock in video game and gun companies may want to keep an eye on prices. According to financial site The Motley Fool, although there is no proven link between violent games and aggression, companies producing media with violent content might still see a price dip after the recent shooting and NRA denouncement.

According to Motley Fool's Rich Duprey, investors in Electronic Arts, Activision and Microsoft stocks will want to keep an eye on them. Stock for publisher TakeTwo Interactive, parent company to 2K Games and Rockstar Games, has gone down 10 percent in the past week, while EA is down 8.5 percent and Activision down six percent.

Dupreys says that although game developers haven't been "dumped" from the portfolios of any major investors, weapons companies have. Last week investment company Cerebus Capital Management publicly announced it's selling its stakes in Remington and Bushmaster gun manufacturer the Freedom Group. The Freedom Group is also a marketing partner of Activision's for the Call of Duty franchise.

"Game makers don't face the same risk as the gunsmiths," writes Duprey. "For those investors who are looking for the industry to bounce back from its recent troubles and still grow in the absence of regulatory maneuvers, this setback could very well be a buying opportunity."

Duprey also says that some game companies add clauses to the "risk" section of their annual reports regarding potential legal activity against its game content.

"In prior years, at least two lawsuits have been filed against numerous video game companies, including against Activision, by the families of victims who were shot and killed by teenage gunmen in attacks perpetrated at schools," reads a section of Activision's reports. "These lawsuits alleged that the video game companies manufactured and/or supplied these teenagers with violent video games, teaching them how to use a gun and causing them to act out in a violent manner."

Similarly, TakeTwo mentions these legal factors. Mobile developer Glu Mobile notes that China "has adopted measures designed to eliminate violent or obscene content in games" in its company reports as well.