Twitter shares fell sharply on Thursday, dropping more than 8 percent in early-day trading.
The tumble put Twitter on track for its biggest one-day percentage drop in more than a month, according to Bloomberg, which said several traders and other news outlets attributed the downturn to a Politico story published Wednesday night that noted Fox News hasn't tweeted in weeks as part of an apparent boycott against Twitter.
Fox News hasn't tweeted from its main account since Nov. 8, and the Fox Business account has been inactive since Nov. 9.
The apparent boycott stems from the network's anger over activists converging at the home of Fox News host Tucker Carlson, according to Mediate.
The left-wing activists demonstrated outside Carlson's home on Nov. 7 and shared videos of the demonstrations on Twitter before deleting the tweet.
The activists chanted "Racist scumbag, leave town!" outside of Carlson's home and wrote on social media that he was "not safe."
Carlson has not posted on Twitter since Nov. 11.
Fox News declined to comment to The Hill.