NEW YORK, January 3, 2026, 10:17 ET — Market closed
- Sandisk (SNDK) last closed up 15.9% at $275.24 on Friday.
- The flash-memory maker appointed First Solar CFO Alexander R. Bradley to its board and audit committee.
- Investors are watching next week’s U.S. jobs and inflation data, and Sandisk’s Jan. 29 earnings call.
Sandisk Corp shares last closed up 15.9% at $275.24 on Friday after swinging between $242.00 and $278.78, with about 11.1 million shares traded.
The flash-memory maker said it appointed First Solar CFO Alexander R. Bradley to its board and audit committee, which oversees financial reporting. “Alex brings exceptional operational finance expertise and strategic insights to Sandisk’s board,” CEO David Goeckeler said. 1
The move matters because Sandisk has become a volatile bet on data-center storage spending, after a roughly 559% run in 2025 following its February 2025 spin-off from Western Digital. Investors also have a near-term checkpoint: Sandisk plans to hold its fiscal second-quarter earnings conference call on Jan. 29. 2
The broader market closed mixed on Friday as semiconductors powered a rebound: the Dow rose 0.66% and the S&P 500 gained 0.19%, while the Nasdaq slipped 0.03% as megacaps weighed, Reuters reported. The Philadelphia SE Semiconductor index rose 4%. 3
Other storage and memory names rallied alongside Sandisk. Micron Technology jumped 10.5% to $315.42, Western Digital gained 9.0% to $187.70 and Seagate Technology rose 4.4% to $287.54.
In an 8-K filing, Sandisk said Bradley’s appointment was not the result of any arrangement or understanding with other parties. The filing also said he will be compensated under the company’s standard non-employee director program. 4
Sandisk develops data storage devices using NAND flash, a type of memory that keeps data even when power is off. Its products span solid-state drives, or SSDs (storage chips with no spinning disk), as well as removable cards and USB drives sold into cloud, client and consumer markets, according to a Reuters company profile. 5
Friday’s jump lifted the stock $37.88 above its prior close, leaving it sensitive to any sign that pricing power in the NAND market is cooling. Flash memory is cyclical: capacity expansions can quickly turn a tight market into oversupply.
The board appointment also puts capital discipline in focus. Bradley’s background at a manufacturer with large, long-dated investment needs may resonate with investors watching Sandisk’s spending plans as it scales for data-center demand.
Before the next U.S. session, traders will be balancing the storage rally against a heavy early-January calendar. Reuters flagged the monthly jobs report due Jan. 9 and the consumer price index report due Jan. 13 as key readouts for interest-rate expectations. 6
For Sandisk, the nearer catalyst is its Jan. 29 earnings call, where investors typically press on enterprise SSD demand, average selling prices and gross margin — the profit left after production costs. Guidance on supply conditions in NAND, and how fast customers are working through inventory, will likely drive the next leg in the stock.
