Company Profile
SanDisk History
SunDisk was originally founded in 1988 by Eli Harari, Sanjay Melotra, and Jack Yuan.
Renamed from SunDisk to SanDisk
On November 8, 1995, SanDisk changed its original name to SanDisk (ticker: SNDK) to avoid confusion with Sun Microsystems.
Main Business
SanDisk’s main business is the design and manufacture of flash memory products, including memory cards, USB flash drives, and solid-state drives (SSDs).
Initial Public Offering
Following the name change in 1995, SanDisk (ticker: SNDK) went public under its new name, marking its first listing on NASDAQ under the ticker symbol SNDK.
Acquisition of Fusion-io
In June 2014, SanDisk acquired Fusion-io for $1.1 billion. Fusion-io primarily manufactures flash memory products and software for data centers. This allows SanDisk to focus more on the enterprise user market.
The Era of Western Digital
Acquired by Western Digital
In October 2015, Western Digital (NYSE: WDC) announced its acquisition of SanDisk for $19 billion, and completed the acquisition for $16 billion in May 2016.
Spin-off from Western Digital
In October 2023, Western Digital spun off its flash memory business into a newly established publicly traded company under the SanDisk name, while Western Digital focused solely on the hard drive business. In addition to SanDisk-branded products, the spun-off subsidiary includes WD-branded flash memory products.
Relisting
After being spun off from Western Digital, SanDisk (NYSE: SNDK) relisted on NASDAQ on February 24, 2025, retaining the ticker symbol SNDK.
Market share and Market size
Global Market Size
According to a recent report by market research firm Omdia, the global semiconductor market size is projected to exceed US$1.6 trillion by 2026, with computing and storage semiconductors accounting for approximately 60.7%.
World top 5 NAND Flash Vendors (Q1 2026)
Based on Q1 2026 data (TrendForce), here’s the global NAND flash ranking by revenue:
- Samsung Electronics (South Korea) — posted US$13.51 billion in NAND Flash revenue, marking a staggering 104.7% QoQ increase—the highest growth rate among the top five—while expanding its revenue market share from 28% to 31.6%. It’s been driven by quarterly contract pricing and a significant increase in server-related bit shipments.
- SK hynix Group (South Korea, includes Solidigm) — secured second place with about US$7.53 billion in revenue, reflecting a 44.6% QoQ increase and bringing its market share to 17.6%. Growth was significantly bolstered by its subsidiary, Solidigm, which benefited from a steady influx of orders for high-capacity QLC enterprise SSDs.
- Kioxia (Japan) — revenue climbed 80% QoQ to US$5.96 billion, retaining its third-place ranking with a 13.9% market share.
- Micron (US) — NAND Flash revenue jumped 96.7% QoQ to US$5.95 billion, allowing its market share to rebound to 13.9%, tying with SanDisk for fourth place.
4/5 (tie). SanDisk (US) — experienced a massive QoQ revenue increase of over 200% in its data center business, with total revenue matching Micron’s at US$5.95 billion, also reflecting a 96.7% QoQ growth and a 13.9% market share.
Honorable mention — the disruptor to watch: YMTC (Yangtze Memory Technologies, China) is knocking on the top-5 door. Its market share climbed to 13 percent in Q1 2026, up from 8 percent in Q1 2025, with revenue surging nearly 445 percent year-over-year, supported by strong demand from Chinese manufacturers and NAND supply shortages that pushed prices higher.
AI has changing Sandisk
Q1 2026 Financial Result
On April 30, 2026, SanDisk’s management updated the company’s performance outlook, raising its Q2 2026 revenue forecast to 74% higher than previous targets, far exceeding expectations. Boosted by this, the company’s stock price has risen 70% since the release date.
This astonishing performance forecast stems from strong demand driven by the deployment of artificial intelligence. SanDisk’s data center revenue increased by 233% quarter-on-quarter, directly benefiting from the large-scale flash memory required for AI-driven operations. SanDisk launched the right products at the right time, and demand from hyperscale data centers is translating into waves of orders.
Memory and Storage Is No Longer a Cyclical Industry
At its Q1 2026 financial report conference, SanDisk also revealed its efforts to break the decades-long boom-and-bust cycle that has plagued the memory chip industry. The company announced that it has signed multi-year cooperation agreements with five customers to secure future demand. These are not empty promises. These agreements come with over $11 billion in financial guarantees and minimum contract revenue of approximately $42 billion.
Consistent with key supply chain
Similar to the massive transformation revealed by Micron (ticker: MU) in its Q1 2026 earnings call: artificial intelligence has transformed the memory and storage industry, making it no longer the most notoriously cyclical sector in the tech industry.
Companies and supply chain vendors of SanDisk, such as Seagate Technology (ticker: STX), Texas Instruments (ticker: TXN), and Western Digital (ticker: WDC), have also recently released similar upward revisions to their earnings outlook.
Capital Market Performance
Stock Price Performance
Since its secondary listing, SanDisk’s timing has been precise, coinciding perfectly with the massive demand for memory and storage chips driven by artificial intelligence. In less than a year and a half, its stock price has increased 50 times (not 50%).
Only Kioxia Can Compare
The only listed company comparable to SanDisk is its competitor, Kioxia! The AI boom has propelled Kioxia’s stock price more than 44 times (not 44%) since its listing in December 2024, making it the company with the highest market capitalization in Japan.
Related articles
- “SK Hynix dominates memory by AI“
- “Western Digital saw 200% annual stock performance,thanks to AI“
- “Seagate comeback thanks to AI, No 1 S&P 500 perform stocks YTD“
- “How does Micron make money? What investors should know?“
- “How does Texas Instruments make money? Amazing long term capital reward and company net profit margin!“
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