SanDisk Corporation (SNDK) experienced a significant stock surge, climbing between 7% and 11%, following confirmation of its addition to the prestigious Nasdaq-100 index. The flash memory supplier is set to join the index before the market opens on April 20, 2026, replacing software company Atlassian, whose shares have declined 61% this year.
The inclusion is a major catalyst, expected to drive substantial passive investment inflows. Over 200 investment products managing more than $600 billion globally track the Nasdaq-100, meaning index funds and ETFs will be forced to mechanically buy SanDisk shares. This move significantly boosts the company's institutional visibility and provides sustained buying pressure.
The rally is underpinned by booming fundamentals linked to artificial intelligence infrastructure demand. SanDisk has benefited from surging requirements for high-performance memory and storage in AI data centers, where needs far exceed traditional computing. The company recently increased NAND flash prices by more than 10% starting April 1, 2026, signaling strong pricing power. Market data suggests contract prices for NAND memory could rise 70% to 75% quarter-over-quarter.
Analyst sentiment has turned overwhelmingly bullish. According to Barchart, the stock has received 14 "Strong Buy," 1 "Moderate Buy," and 5 "Hold" ratings. Bernstein SocGen Group analyst Mark C. Newman raised his price target by 25% to $1,250, the highest on Wall Street, based on projected average earnings of $114 per share between 2026 and 2029. Cantor Fitzgerald's C.J. Muse also lifted his target to $1,000.
Financially, SanDisk's momentum is clear. In fiscal Q2 2026, revenue rose to approximately $3.03 billion with non-GAAP EPS surging to $6.20. Data center revenue was a standout, accelerating 64% quarter-on-quarter to $440 million. The company has also secured its manufacturing future through a long-term partnership extension with Kioxia Corporation at its Yokkaichi plant, locking in production capacity for the next five years.
The index reshuffle reflects a broader market rotation from software companies, seen as vulnerable to AI disruption, toward AI infrastructure and hardware beneficiaries. While the convergence of index inclusion, AI demand, and favorable pricing has made SanDisk a top tech performer of 2026—up 231% year-to-date and an astonishing 2,620% over the past 12 months—the high expectations pose a challenge for sustaining the rally's momentum.
