Arcellx, Inc. Hits Day High with 70.98% Surge in Stock Price

Arcellx, Inc., a small-cap player in the Pharmaceuticals & Biotechnology sector, has experienced significant activity today, with the stock surging by 70.98% on February 23, 2026. The stock reached an intraday high of USD 114.26, marking a notable milestone in its trading session. In terms of performance metrics, Arcellx has shown impressive short-term gains, with a 1-day performance of 77.43%, significantly outpacing the S&P 500's 0.69% increase. Over the past week, the stock has risen by 66.06%, while its monthly performance stands at 68.02%. Year-to-date, Arcellx has achieved a remarkable 74.46% gain, and its 1-year performance reflects a 78.43% increase, although it has underperformed relative to the S&P 500's 12.95% return. Despite these gains, the company has faced challenges, including negative results in the last two consecutive quarters and a significant decline in profits. Promoter confidence appears to be waning, with a 3.47% decrease in their stake. As Arcellx continues to navigate its market position, today's trading activity highlights the volatility and dynamics of the stock.