Shares of SanDisk fell 11.66% on Wednesday, trading at $1,552.79 as of 11:43 a.m. EDT, down $205.03 on the day, after Argus Research initiated coverage of the NAND flash memory maker with a cautious "Hold" rating, adding institutional weight to a broader pullback across the memory chip sector.

The Argus initiation stood in contrast to the 18 buy ratings already assigned to the stock by other analysts, but its neutral stance was enough to reignite selling pressure in a name that has already shed more than 31% from its June 22 peak. Wednesday's decline leaves SanDisk trading well below its 52-week high of $2,354.39, even after a rally that had pushed the stock up as much as 759% year-to-date at points earlier this year.

A Broader Memory Sector Pullback

SanDisk's decline came amid a wider retreat across memory-related stocks Wednesday, as traders continued locking in profits following one of the strongest sector rallies of the year. SK Hynix's U.S.-listed shares fell roughly 5% to $184.50, giving back a portion of the previous session's 27% surge, while Western Digital shares declined about 4% and Micron Technology slipped roughly 3%.

According to market commentary tracking the sector, there was no confirmed company-specific negative catalyst behind the broader pullback, with the move appearing to reflect broad profit-taking in some of the most richly valued AI-related beneficiaries within the semiconductor space. Micron shares have gained 244% year-to-date, while SanDisk shares were up 640% for the year as of Tuesday's close, underscoring the scale of gains........

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