** Shares of video game retailer GameStop 
GME rise 6.5% to $27.5 after the bell
** GME says its board has approved adding bitcoin as treasury reserve asset
** Reports net income of $131.3 million for Q4, up from $63.1 million a year ago
** GME posts Q4 net sales of $1.28 billion vs estimate of $1.48 billion, according to data compiled by LSEG
** Up to last close, stock had fallen ~19% YTD
