Biggest Stock Gainers Today (December 9, 2025): AFJK, NCPL, XCUR, ALEX and DBI Lead the After‑Bell Rally
U.S. stocks ended Tuesday’s session mostly flat ahead of the Federal Reserve’s final policy decision of 2025, but under the surface the tape was anything but quiet. While the S&P 500 slipped roughly 0.02%, the Dow fell about 0.32% and the Nasdaq 100 edged up around 0.18%, a pack of small‑ and mid‑cap names posted spectacular double‑ and triple‑digit gains. StockAnalysis+1 Much of the action clustered in thinly traded microcaps reacting to very specific catalysts: SPAC deadline extensions, biotech trial results, earnings surprises and take‑private deals. Here’s your final, after‑the‑bell roundup of the biggest stock gainers in the U.S. market on December 9, 2025, and what drove the moves.
