So here's what happened: a U.S.-brokered ceasefire between Israel and Lebanon took effect, and suddenly investors remembered they like tech stocks again. Specifically, they liked tech stocks that had been beaten down by a nasty combo of geopolitical anxiety, inflation worries from rising oil, and supply-chain jitters around the Strait of Hormuz.
Twelve trading sessions later, with both the S&P 500 and Nasdaq 100 at record highs, a screen of large-cap stocks turned up something interesting. Ten companies with market caps over $50 billion had each ripped higher by more than 40%. And not a single one was an energy company. They were all tech or tech-adjacent names—the exact kind of high-multiple stocks that had been out of favor during the risk-off mood of the conflict.
But this wasn't just a uniform bounce. Some stocks broke historic records. One delivered a streak not seen in over two decades. And a whole group of memory and storage companies suddenly got credit for a supply shortage that had been building since late 2025 but was easy to ignore when headlines were dominated by geopolitics.
Let's walk through the list, from number ten to the top performer.
AMD did something it hadn't done since 2005: it closed higher for 12 consecutive trading days. That's a rare feat in its history—only the fourth time since its 1972 IPO that it's strung together ten or more positive closes. And this current streak came with the biggest initial pop of any in the series, adding about $101 billion in market value.
Why? Wall Street started to rethink AMD's server-CPU business as a structural winner in the agent-based AI wave. Analysts at Bernstein SocGen raised their 2027 revenue forecast well above consensus, pointing to AMD's partnership with Meta and the upcoming MI400 AI accelerator launch. The company reports Q1 results on May 5, with prior guidance calling for 32% year-over-year revenue growth.
Micron gained 42.09%, climbing back from war-period lows as the market finally priced it at multiples that match its fundamental supply-demand position. The catalyst was already there: back in March, Micron reported fiscal Q2 2026 earnings of $12.20 per share, blowing past consensus by about 33%, with revenue of $23.86 billion driven almost entirely by high-bandwidth memory (HBM) demand.
Management confirmed that HBM capacity for the rest of 2026 is completely sold out, with AI data centers eating up roughly 70% of high-end DRAM supply. When ceasefire terms became clearer on April 8, memory chip stocks jumped about 9% in premarket trading, with Micron leading the charge alongside SanDisk, Seagate, and Western Digital.
Western Digital surged 43.72%, extending a move that had already pushed the stock to record highs in mid-March after Micron's blowout earnings. The ceasefire didn't start the trend; it just kept it going.
The company's dual exposure to NAND flash and high-capacity hard drives gives it a broader AI storage footprint than pure-play peers. Reportedly, its entire HDD manufacturing capacity for 2026 is committed, with some enterprise contracts stretching into 2028. Morgan Stanley has described both Western Digital and Seagate as underappreciated AI infrastructure plays. Western Digital reports fiscal Q3 results on April 30.
Seagate rallied 46.73% as the mass-capacity hard drive market repriced alongside the broader memory sector. Its high-capacity Mozaic platform has become the go-to solution for AI cold storage—those massive data repositories used for model refinement that are far cheaper on high-density HDDs than on enterprise SSDs.
With enterprise SSDs now costing up to 16 times more per terabyte than HDDs, Seagate's position as a volume supplier in the HDD duopoly has taken on new strategic value. JPMorgan upgraded the stock, citing strong demand trends and expanding margins.
Coherent gained 49.33%, extending a 12-month rally of about 448% driven by AI data centers switching from copper to optical interconnects to handle the bandwidth needs of next-gen compute clusters.
Datacenter and communications revenue grew 34% year-over-year in its most recent quarter, now making up 72% of total revenue. A strategic supply agreement with Nvidia Corp. (NVDA), including a multi-billion dollar purchase commitment for advanced laser and optical networking products, boosted investor confidence. Management called the demand environment "extraordinary," with a 4x book-to-bill ratio and customer forecasts reaching into 2028.
Marvell rallied 51.88% over 12 days, notching five consecutive weekly gains. The company supplies custom silicon and high-speed networking ASICs to hyperscalers—products that benefit directly when AI infrastructure spending picks up after risk-aversion periods.
Bank of America recently named Marvell alongside AMD as a top AI compute pick. The ceasefire simply restored the macro conditions where investors were willing to pay a premium multiple for Marvell's AI exposure.
SanDisk soared 60.61%, closing at $906.16 on April 16 and nearing its record high of $965. The driver? A NAND flash supply crunch that has left its products fully allocated well into the year.
As a 2025 spin-off from Western Digital, SanDisk is now the pure-play NAND flash supplier in the group. A renewed manufacturing joint venture with Kioxia through 2034 locked in production cost certainty just as the rest of the industry scrambled for wafer capacity. Fiscal Q2 2026 revenue of $3 billion was up 61% year-over-year, with non-GAAP EPS of $6.20 far above the prior year's $1.23. Bernstein raised its price target to a Street-high $1,250, citing memory prices rising faster than expected.
Intel closed at $68.50 on April 16, approaching its high near $69 last touched in 2020. A move above that would push the chipmaker to levels not seen since September 2000—the peak of the dot-com era.
The stock had already risen about 240% from its April 2025 low near $18 under CEO Lip-Bu Tan, backed by $8.9 billion in CHIPS Act funding and the successful ramp of its 18A process node to high-volume manufacturing in Arizona. An expanded AI infrastructure partnership with Alphabet Inc. (GOOGL)'s Google, focused on Xeon processors and custom Infrastructure Processing Units, added more tailwinds. The ceasefire acted as an accelerant on a stock that was already moving. Intel reports Q1 2026 earnings on April 23.
CoreWeave recovered from a low near $67 to $119.56, its highest level since November 2025, with eight straight sessions of gains and a 12-day momentum reading of 72.90—its strongest since its March 2025 IPO.
Two catalysts converged. The deal pipeline accelerated: CoreWeave secured a $21 billion extended agreement with Meta Platforms Inc. (META) through 2032, expanded its OpenAI deal from $16 billion to $22.4 billion, and added Anthropic as a customer—bringing nine of the ten largest AI model providers onto its platform. Financing followed, with a $3.5 billion convertible notes offering and $1.75 billion in senior notes both upsized on strong demand. Macquarie upgraded the stock to Outperform, calling CoreWeave's platform increasingly structural to hyperscaler infrastructure rather than just a commodity rental arrangement.
Bloom Energy is the top performer, crossing $200 for the first time ever on April 14. The main catalyst was a structural deal: on April 13, Oracle Corp. (ORCL) announced an expansion of its partnership with Bloom to deploy up to 2.8 gigawatts of solid oxide fuel cell systems for U.S. AI data center development, with 1.2 gigawatts already under contract.
That deal positions Bloom as the leading on-site power supplier for hyperscale AI infrastructure—solving the most urgent constraint for data center operators: the inability to connect to the electrical grid fast enough to keep pace with AI investment. JPMorgan raised its price target to $231, calling the Oracle deal an additional stamp of approval. Bloom had previously guided for 2026 revenue above $3.1 billion, about 58% growth over its record 2025 revenue of $2.02 billion. Jefferies upgraded the stock and more than doubled its price target after the announcement. The ceasefire provided the macro backdrop; Oracle provided the fundamental break.
What's Next?
This rotation into AI infrastructure and memory storage isn't just a simple bounce from war-period lows. It's a structural repricing of assets that were discounted by both geopolitical risk and a narrative that AI capex cycles were maturing.
TSMC's Q1 2026 earnings—reporting sharp demand growth for advanced nodes used in AI accelerators—provided fundamental confirmation that AI infrastructure investment hadn't slowed; it had just been temporarily obscured by Hormuz tensions.
Now the open question is sequencing: AMD reports May 5, Intel reports April 23, and Western Digital and SanDisk both report April 30. Whether earnings confirm the re-rating the market has already delivered—or whether guidance disappoints at these elevated multiples—is the tension that will define the next chapter of this rotation.
