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SNDK's NAND flash surge delivered 251% revenue growth while MU's HBM leadership drove 346% growth, both fueled by accelerating AI infrastructure demand.

Micron trades at just 6x forward earnings with 80% operating margins and HBM already shipping at high volume to lead AI customers.

Both stocks pulled back post-earnings, with SNDK falling 15% and MU dropping 11%, even as both guided toward record revenues ahead.

This lithium producer surpassed a $1B private valuation, joining some of America's most powerful startups. Now you can invest in EnergyX alongside global giants like General Motors, but only through July 16. (sponsor)

SanDisk (NASDAQ:SNDK) and Micron Technology (NASDAQ:MU) both just delivered the kind of quarters that memory investors dream about.

SanDisk posted a 251.03% revenue surge on NAND flash strength, while Micron rode HBM and DRAM to 345.72% growth. Two very different memory playbooks. One shared tailwind: AI infrastructure spending that refuses to slow down.

SanDisk's Datacenter segment did the heavy lifting, generating $1.47 billion at a jaw-dropping +645% year over year. Gross margin swung from 22.5% to 78.4% in a single year, which tells you pricing power has completely inverted.

CEO David Goeckeler framed it as "a fundamental inflection point for Sandisk", pointing to five signed multi-year customer agreements and engagement with five hyperscalers. That is real backlog with contractual visibility.

Micron played a bigger board. Cloud Memory hit $13.77 billion, Core Data Center added $11.52 billion, and gross margin expanded to 84.6%. HBM4 is already shipping in high volume to the lead AI accelerator customer.

Sanjay Mehrotra said "memory has become a strategic asset for our customers". The $7.83 billion quarterly capex bill is the price of holding that HBM crown.

July 16 is the Final Day to Tap Into the Lithium Boom (sponsor)General Motors, POSCO, and 50,000+ everyday investors have already backed lithium producer EnergyX.

Here's why you should do the same before their July 16 investment deadline: lithium prices are up 75% this year, with demand projected to grow a staggering 5X by 2040.

With tech that can recover up to 3X more lithium than traditional methods, EnergyX is preparing to unlock up to 15M+ tons. Become a private-stage EnergyX investor before the July 16 deadline.

Business Driver

SanDisk

Micron

Core AI Product

High Bandwidth Flash, BiCS8 NAND

HBM4, 1-gamma DRAM

Balance Sheet

Zero long-term debt

Heavy capex, $325 million debt prepay loss

Shareholder Return

New buyback authorization

Dividend plus $650 million buybacks YTD

Forward PE

26

6

SanDisk is betting the farm on flash for AI inference workloads, where High Bandwidth Flash could cheapen memory-intensive model serving.

Micron is playing every position on the field: HBM for training, DDR5 for servers, LPDDR5X for phones, QLC SSDs up to 245TB, and even robotaxi automotive DRAM. Breadth is Micron's moat. Focus is SanDisk's.

SanDisk guided Q4 revenue to $7.75 billion to $8.25 billion and EPS to $30 to $33. Micron pointed to $50 billion and roughly 86% gross margin. Yet both stocks have cooled after their earnings reports. SanDisk is down 15.46% over the past month, and Micron slipped 10.62% since its June 24 filing. That looks like digestion after a strong run.

I will be watching whether SanDisk can convert hyperscaler engagements into visible ramp guidance beyond Q4, and whether Micron's HBM4E schedule for calendar 2027 holds against fierce Korean competition.

If you want a sense of how far the memory rerating could travel, our team's Next Nvidia Playbook lays out the framework I keep returning to.

On the numbers, Micron screens as the cleaner risk-reward. A 6 forward PE on a company with 80.4% operating margins and HBM leadership is difficult to argue with, and the 40 combined buy and strong-buy ratings back that up.

SanDisk is the higher-torque play. Its 605.19% year-to-date run reflects a NAND-only story that could still deliver if High Bandwidth Flash lands, but it trades at a much richer forward multiple.

Micron offers durability and cash return, while SanDisk offers asymmetric upside on a single product bet. The two profiles suit different investor objectives.

A US startup just passed a $1 billion private valuation, joining billion-dollar private companies like OpenAI and ByteDance. Unlike those other unicorns, you can invest in EnergyX right now; but only until July 16.

Over 50,000 people already have, along with global giants like General Motors and POSCO.

Here's why there's so much interest: EnergyX's patented tech can recover up to 3X more lithium than traditional methods. That's a big deal, as demand for lithium is expected to 5X current production levels by 2040. Become an early-stage EnergyX shareholder before the 7/16 investment deadline.

Contact editorial@247wallst.com for any questions or corrections.