NEW YORK, January 4, 2026, 10:10 ET — Market closed.
- Sandisk shares last closed up 15.9% at $275.24, their biggest one-day move in weeks, as U.S. markets head into Monday’s open.
- The flash-memory company said it appointed First Solar CFO Alexander R. Bradley to its board and audit committee, effective Dec. 30.
- Investors’ next catalyst is Sandisk’s fiscal second-quarter results and conference call on Jan. 29.
Sandisk Corp shares ended Friday up 15.9% at $275.24, the last close before U.S. markets shut for the weekend. The move followed the company’s announcement that it added First Solar Chief Financial Officer Alexander R. Bradley to its board.
The jump matters because Sandisk has become a high-beta way to play the data-storage trade after a breakout year in 2025. It joined the S&P 500 in late November, pulling more index-linked money into the name and amplifying moves around headlines.
With the next earnings report less than four weeks away, traders are looking for clues on how long the current upswing in flash-memory pricing lasts. NAND flash — the type of memory chip used for data storage — tends to swing sharply when supply or demand shifts.
On Friday, Sandisk traded between $244.00 and $275.80, according to Nasdaq historical data. Volume climbed to about 11.1 million shares, more than double the prior session’s roughly 4.2 million.
Sandisk said Bradley joined its board and was appointed to the audit committee, the board panel that oversees financial reporting and controls. Chief executive David Goeckeler said Bradley brings “exceptional operational finance expertise and strategic insights” to the board. Business Wire
Bradley has served as First Solar’s CFO since 2016, Sandisk said, and previously worked in investment banking and leveraged finance at HSBC. Sandisk said its board now has eight directors, seven of them independent.
The move came alongside strength across storage and memory names to start the year. Micron Technology rose 10.5% on Friday, while Western Digital gained about 9% and Seagate Technology added 4.4%, according to market data.
Sandisk became an independent public company in February 2025 after separating from Western Digital, and began trading on Nasdaq under the ticker SNDK, the company said at the time. It later moved into the S&P 500, S&P Dow Jones Indices said.
From a chart perspective, Friday’s close put Sandisk within reach of its 52-week high of $284.76, with that level likely to act as the next hurdle for momentum traders. On the downside, the prior close near $237 is the most recent reference point if the rally fades.
But the stock’s surge also raises the bar for the next set of results. Flash-memory demand is closely tied to enterprise and consumer device cycles, and price gains can reverse quickly if competitors add supply or customers work down inventory.
The next concrete catalyst is Jan. 29, when Sandisk is scheduled to report fiscal second-quarter results and host a conference call at 1:30 p.m. Pacific time (4:30 p.m. ET). Investors will watch management’s comments on pricing, margins and capital spending plans.
Ahead of Monday’s session, traders will also track broader risk appetite in semiconductors and any industry signals on memory pricing as the market digests Sandisk’s sharp move to start 2026.
