Live: Will Micron Crush Q3 Earnings Tonight After Tuesday’s 13% Selloff?

We’re in the quiet part of earnings season, but there’s a big announcement tonight right after the 4 p.m. closing bell. Micron (MU) announces its Q3 earnings, and they’ll shape whether semiconductor indexes continue selling off tomorrow or rebound in the weeks ahead. Let’s look at three key figures that will decide whether Micron shares rise or fall tomorrow. 

1) Gross Margins 

Investors expect Micron to report gross margins of 81.7% this quarter. However, expectations ramp even higher in Q4, all the way to 83.7%. That’s an astounding figure (past memory cycles peaked at around 60% gross margins), and shows how rabid memory demand is. 

Yet, if margins fall or Micron’s guidance is below expectations, investors will fret we’re already reaching the ‘top of the cycle’ and its likely shares will fall tomorrow. Watch gross margins closely, as its the number one figure studied by Wall Street and hedge funds when assessing how long this memory cycle can last.

2) Forward Revenue

Wall Street expects revenue of $35.8 billion this quarter and $43.5 billion next quarter. Micron will have to beat both figures (and likely by a sound margin), but next quarter matters more. 

3) Forward Demand

Micron has said customers are only getting 50% to 67% of requested supply in past earnings calls and executive media appearances. Is there any updates to this figure? Wall Street will also carefully study any commentary on demand into 2027 and details on agreements with customers like Anthropic.

Back in 2024, NVIDIA (NVDA) earnings felt like the “Super Bowl” of the investing world. CNBC would have countdown clocks throughout the day headed into its earnings.

More importantly, NVIDIA’s earnings shaped the direction of the entire stock market. A big earnings beat would propel an entire group of companies forward. A miss would lead to broad losses across not just technology stocks, but stocks in general.

Well, it certainly feels like Micron (MU) has surpassed NVIDIA to become the market’s “story stock” in 2026.

A big overnight drop in memory stocks in Korea led to the Nasdaq down 3% in premarket trading yesterday. In addition, the market caps of the ‘big three’ memory companies (Samsung, SK Hynix, and Micron) all now exceed $1 trillion.

Most importantly, it feels like Micron must achieve the ‘impossible’ tonight. Margins need to stay elevated, but if they’re too elevated that could lead to broader selling on concerns their pricing is hurting the overall AI trade.

And if Micron shows any weakness in forward guidance, that will likely lead to a broad sell-off across the entire semiconductor industry that now makes up 19% of the S&P 500.

No matter how you slice it, these are massive earnings tonight. With the Van Eck Semiconductor ETF (SMH) down another 2% today after a 6% drop yesterday, Micron’s earnings will likely shape the next leg of the overall semiconductor trade.

HBM has been the headline driver of Micron’s rally, but NAND may be emerging as a second AI growth engine.

As AI models become more agentic and memory-intensive, demand for high-performance data center storage is rising alongside demand for memory. Micron is already ramping its latest NAND products and expects NAND bit shipments to grow roughly 20% this year.

For investors focused on tonight’s earnings call, one thing to watch is whether management spends more time discussing storage demand. A broader AI story beyond HBM could strengthen the argument that Micron’s growth runway extends well beyond the current cycle.

Most investors focus on Micron’s HBM business, but another trend could become increasingly important: Strategic Customer Agreements, or SCAs.

These long-term supply contracts are designed to give customers guaranteed access to memory while providing Micron with better visibility into future demand.

Management signed its first five-year SCA last quarter and said discussions are underway with additional customers across multiple end markets.

If adoption continues to grow, SCAs could help reduce Micron’s historical exposure to memory-cycle volatility and make future revenue streams more predictable.

CEO Sanjay Mehrotra has delivered four consecutive EPS beats at Micron Technology (NASDAQ:MU | MU Price Prediction), with surprise magnitudes of 18.94%, 5.94%, 21.33%, and 39.74%.

More importantly, actual results have crushed management’s own prior guidance each quarter. Last cycle, Micron guided revenue of $18.70B and delivered $23.86B, while EPS guided at $8.42 printed $12.20.

Mehrotra’s tone has stayed uniformly positive across all four reports, framing memory as a “strategic asset”. CFO Mark Murphy reinforced that conditions should “remain tight beyond 2026”.

That credibility underpins Polymarket’s 96% beat probability for tonight. The pattern also points to aggressive sandbagging, suggesting management’s $33.5B revenue and $19.15 EPS guide could once again prove a floor rather than a ceiling.

Everyone expects Micron to beat earnings tonight. The bigger question is what management says about margins and demand heading into fiscal 2027.

The AI story is well understood at this point. HBM demand remains strong, supply is tight, and hyperscalers continue spending aggressively. What’s less clear is whether Micron can maintain the extraordinary profitability investors have become accustomed to over the last few quarters.

Micron guided for roughly 81% gross margins in Q3. Investors are looking for management to defend that level and extend visibility into 2027. If margins show signs of pressure, investors may begin to question how much of today’s earnings power is sustainable, especially given the stock’s recent move to over $1 trillion in market cap.

Peer Scorecard: 3-for-3 on Beats

Three AI-adjacent memory and storage peers have recently reported revenue and earnings beats.

• NVIDIA (NASDAQ:NVDA) posted $81.61B in revenue (+85.2% YoY) and beat EPS by 5.42%.
• Seagate Technology (NASDAQ:STX) delivered a record 47.0% non-GAAP gross margin and beat by 17.13%.
• Western Digital (NASDAQ:WDC) crossed 50% gross margin for the first time, beating by 13.71%.

Common threads: These businesses all saw hyperscaler-driven demand, margin expansion, and guidance increases, with Seagate and Western Digital hiking dividends.

Both storage names fell sharply today, with Seagate down 7% and Western Digital down 7.64%, mirroring Micron’s 13% pre-earnings drop.

For Micron Technology (NASDAQ:MU) peer fundamentals support the AI memory thesis, but with management guiding for $33.5B revenue and ~81% gross margin, the bar is unusually elevated heading into earnings.

Tonight’s headline numbers from Micron (NASDAQ:MU) will almost certainly clear the bar. Polymarket pegs a 96.1% odds of an earnings beat, and management has guided conservatively all cycle, guiding for revenue of $18.70 billion last quarter, then delivering $23.86 billion.

The real swing factor is the Q4 outlook. Bullish guidance would push revenue above roughly $36 billion, hold gross margin at/above 81%, and confirm HBM allocation sold into calendar 2027.

On the other hand, bearish guidance would look like flat sequential revenue heading into Q4, any hint of margin compression, or cautious hyperscaler inventory commentary.

After a 31.04% surprise last quarter still produced a -19.99% one-week drop, the lesson is clear that guidance, rather than the earnings beat, will drive the stock’s reaction.

Micron’s Q3 earnings report tonight is likely to come down to two things: management’s outlook for fiscal 2026 and what CEO Sanjay Mehrotra says about demand heading into 2027.

Investors already know AI is driving strong demand for high-bandwidth memory (HBM). The bigger question is how long that demand can support today’s pricing and profitability.

If Mehrotra extends HBM visibility into 2027 and reinforces the company’s roughly 81% gross margin outlook, it would strengthen the case that the AI memory boom still has room to run.

If either of those pillars starts to weaken, investors may begin questioning how sustainable today’s earnings power really is. After all, Micron shares have climbed more than 700% over the past year, leaving little room for disappointment.

This live blog is being updated by Thomas Richmond, a 24/7 Wall St. contributor. You’ll get expert analysis of Micron’s Q3 earnings. Simply stay on this page, and new updates will appear below automatically. We expect Micron’s earnings to be released shortly after 4:00 p.m. ET.