Wall Street bounces back after days of decline: S&P 500, Nasdaq and Dow Jones end day on high side; ARKO Corp grows 233%, Vision Marine Technologies plunges, check top gainers and losers

Wall Street rebounded on Thursday, December 18, 2025, as the S&P 500 snapped a four-day losing streak, supported by inflation data that came in lighter than expected. The delayed November Consumer Price Index (CPI) report showed headline annual inflation of 2.7%, according to the Bureau of Labor Statistics. The CPI release marked the first such report issued since the US government shutdown ended last month.

The S&P 500 jumped 0.79% to settle at 6,774.76, while the Nasdaq Composite advanced 1.38% to 23,006.36. The Dow Jones Industrial Average gained 65.88 points, or 0.14%, to end the day at 47,951.85. According to CNBC, the 12-month rate for core CPI, which excludes food and energy, was 2.6%, which was also lower than the Dow Jones forecast of 3%. The report was pushed back from its original release date of December 10, 2025.

NASDAQ: Top gainers and losers

As of December 18, 2025, at 4:15 PM ET, several securities posted outsized gains. ARKOW (ARKO Corp.) led the market with a sharp increase of +233.3333%, making it the most advanced name on the list. It was followed by CGCTW (Cartesian Growth Corporation III Warrant), which surged +168.6567%. Strong gains were also seen in Aimei Health Technology Co., Ltd. (AFJKU), climbing +151.7241%, and Aimei Health Technology Co., Ltd. Ordinary Share (AFJK), rising +100.8074%. Rounding out the top advancers, HSCSW (HeartSciences Inc.) advanced +95.7143%.

On the downside, the market also saw notable declines during the same session. VMAR (Vision Marine Technologies Inc.) experienced the steepest drop, falling -51.9624%. Close behind was MSOX (AdvisorShares MSOS Daily Leveraged ETF), down -50.4883%. KWMWW (K Wave Media, Ltd. Warrant) declined -49.9287%, while PYXS (Pyxis Oncology, Inc.) fell -48.6647%. GANX (Gain Therapeutics, Inc.) completed the list of the most declined securities, ending the session down -44.4444%.