Can Micron's Earnings Reverse AI Pessimism?

– Revenue: The market consensus is $12.92 billion, up 48% YoY and 14% QoQ. The company's guidance is $12.5 billion.

– GAAP Gross Margin: Consensus is 51%, up 12.6 percentage points YoY and 5.3 percentage points QoQ. Company guidance is 50.5%.Non GAAP Gross Margin: Consensus is 51.8%, up 12.3 percentage points YoY and 6.1 percentage points QoQ. Company guidance is 51.5%.

– GAAP Net Income: Consensus is $4.33 billion, up 132% YoY and 35% QoQ. Company guidance is $4.02 billion. Non GAAP Net Income: Consensus is $4.57 billion, up 124% YoY and 32% QoQ. Company guidance is $4.31 billion.

Micron's business units are the Cloud Memory Business Unit (CMBU), the Core Data Center Business Unit (CDBU), the Mobile and Client Business Unit (MCBU), and the Automotive and Embedded Business Unit (AEBU).

The biggest difference in this cycle is that HBM is consuming advanced DRAM capacity, causing a passive contraction in the supply of traditional DRAM which makes price increases easier. The NAND market is facing a similar passive contraction because major storage players are prioritizing DRAM expansion over NAND.

However, currently only HBM demand has high visibility. Micron management stated at the November analyst meeting that the company's 2026 HBM capacity is already sold out. Last quarter, Micron's HBM revenue was approximately $2 billion. This accounts for about 22% of DRAM revenue and 18% of total company revenue, which is still a relatively small volume. Therefore, the market is concerned about demand changes in the massive non HBM product segment as this determines the sustainability of price hikes for that category.

Against the backdrop of industry wide shortages and price hikes, the top three giants (SK Hynix, Samsung Electronics, and Micron) have all chosen to expand capacity in the DRAM market (including HBM) rather than NAND. Yet, these companies all believe that both DRAM and NAND will remain in short supply through 2026. Since the storage sector has long been labeled a "cyclical stock," everyone is being cautious about the pace of expansion in this upcycle.

Micron revealed last quarter that new HBM/DRAM capacity won't begin to ramp until 2027 meaning limited new capacity before then. Regarding NAND, management has yet to signal any related expansion plans.

– Idaho ID1: Expected to ramp DRAM volume in 2H 2027.

– Idaho ID2: Volume production expected after 2028.

– New York Clay: Will follow Idaho ID2.

– Singapore HBM Packaging: Construction is progressing well with volume production expected in 2027.

– Japan Fab: This is the only facility capable of releasing DRAM capacity in the short term. However, it installed EUV equipment last quarter for the 1-gamma node rather than the 1-beta node currently used for Micron's HBM3E. Consequently, it cannot release more HBM capacity in 2026.

If the capacity expansion narrative is not communicated well, the market could instantly switch from awarding a "growth premium" to inflicting a "cyclical penalty."

Prior to this price hike cycle, Micron's gross margin was primarily pulled up by HBM growth which boasts margins of 60%+. It is expected that gross margin will rise to 52% this quarter. However, with intensifying competition from SK Hynix and Samsung Electronics, along with significant cost increases for HBM4, the market expects the entire HBM industry's margin levels to be continuously compressed toward 60%.

Looking back at Micron's FY2018 super cycle, even without an HBM business, traditional DRAM and NAND businesses were able to support an overall corporate gross margin rising to 61%. In this current cycle, it is possible that non HBM gross margins could again test 60%+. If that happens, the HBM business might paradoxically drag down further margin expansion.

Considering the panic selling triggered by Broadcom's margin guidance last week, management's guidance for future gross margins in this report is particularly important. Last quarter, Micron management predicted continued margin expansion with sequential growth sustainable in FQ1 and FQ2. Their tone this time will be critical.

Heading into this week's earnings report, Micron options reflect a tense market environment as Implied Volatility has reached 72.05% and sits in the 88th percentile to signal expensive premiums relative to the past year. Despite the recent price strength, the Put/Call Ratio of 1.26 indicates significant defensive positioning as traders utilize the deep liquidity of 1.92 million open contracts to hedge against potential downside risk.

With Implied Volatility closely tracking the elevated Historical Volatility of 71.43%, market participants are fully pricing in a continuation of large price swings and are unwilling to sell volatility cheaply ahead of the catalyst.

In short, the core focus of this Micron earnings report is whether HBM lock ins and DRAM price increases can stabilize the gross margin midpoint above 50% while ensuring that the capacity expansion narrative does not trigger fears of oversupply.

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