Shares of firearms sellers tumbled on Monday as promising data from a COVID-19 vaccine trial knocked stay-at-home stocks and as civil unrest failed to materialize after Democratic candidate Joe Biden emerged as the winner of last week’s United States presidential election. Al Jazeera reports that they were among several so-called stay-at-home stocks, including Peloton Interactive and Zoom Video Communications, which dropped after Pfizer said its experimental vaccine was more than 90 percent effective. Airlines and other companies that would benefit from an end to the health crisis meanwhile rallied.