https://www.reuters.com/article/us-retail-trading-gamestop/gamestop-shares-on-track-to-triple-for-week-as-options-trading-spikes-idUSKBN2AQ1DO >Shares of GameStop Corp jumped more than 10% on Friday, putting the video game retailer's stock on pace to triple for the week in a renewed rally that has left analysts puzzled.