SanDisk stock heads into the open after a 10.99 percent gain
Published on 09/21/2026 at 07:47 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWSSanDisk stock closed at USD 1,791.82 on the Nasdaq on September 18, 2026, up 10.99 percent. The move came as semiconductor shares extended their rebound, while the Philadelphia Semiconductor Index advanced 2.78 percent.
September 18, 2026 in numbers
SanDisk Corp. (ISIN US80004C2008, Nasdaq: SNDK) gained alongside a mixed US session, with the S&P 500 ending 0.17 percent higher at 7,650.50 and the Nasdaq Composite adding 0.39 percent to 26,522.55. TradingKey said the stock surged 10.99 percent as tech and semiconductor shares recovered.
The same market recap also noted that the Philadelphia Semiconductor Index rose 2.78 percent, putting SanDisk's advance in a broader sector move. The close of USD 1,791.82 on September 18, 2026, leaves the share price well above the week's earlier levels mentioned in the market wrap.
Today
SanDisk is set to trade before the open after being added to the S&P 100, effective September 21, 2026, according to Choicestock. That index change is the most concrete scheduled item tied to the stock for today's session.
