Why Is Grail, Inc. ($GRAL) Stock Down -8.99% Today? (Find out why any stock moved today on Tickeron.) Shares of GRAL fell about 8.99% in intraday trading, retreating roughly $13.85 from the prior session's close. Primary catalyst: profit-taking following a sharp, FDA-driven rally that pushed the stock to record highs in late September and early October. Secondary driver: valuation concerns, with the stock trading well above the average Wall Street price target and carrying a consensus "Hold" rating. Market context: the decline reflects a high-beta, speculative healthcare name cooling off rather than broad-market weakness. $PSNL $ADPT $TWST $GH