Zuckerberg Loses Another $11 Billion Monday As $Meta Shares Slide—Here’s Why Why Is Meta Platforms (META) Stock Down -3.79% Today? META is down -3.79% to $723.14 during Monday's regular session, versus Friday's close of $751.66. The pullback reflects profit-taking after a 36% September surge driven by the launch of its Muse AI agent. Shares consolidated after recently touching a near-record $763.90 high and approaching a $2 trillion market cap. The decline came despite fresh bullish analyst target hikes (Jefferies to $875, Cantor Fitzgerald to $860, Monness to $830). Traders are watching whether AI-monetization momentum and the Muse rollout can support the stock after its sharp run-up. $AAPL $MSFT $TSLA