
Sandisk's upcoming inclusion in the S&P 500 prompted a 7% after-hours share price increase, reflecting investor optimism over its move from the SmallCap 600.
Sandisk Corp. will be added to the S&P 500 index on November 28, replacing Interpublic Group of Companies, according to S&P Dow Jones Indices. The move from the S&P SmallCap 600 to the large-cap benchmark spurred more than a 7% rise in Sandisk shares during after-hours trading. The selection edged out Bitcoin treasury firm Strategy, which had met inclusion criteria but was not chosen in this or previous adjustments.