Why Is Micron Stock Surging Today? Samsung Just Confirmed the Memory Shortage That Drove the $1,255 High

Samsung Electronics reported for Q2 2026 on Thursday and indicated that memory chips will have a long-term supply and demand imbalance due to the rapidly expanding AI infrastructure. Samsung's comments directly contradict the CXMT bear case that has been driving Micron's selloff for the last week. If the largest memory manufacturer in the world, who is behind Micron and SK Hynix and in the steepness of their HBM production ramp, is saying Long-term shortages and not a supply glut, then CXMT will adding competitive capacity is not an immediate concern, but more of a multi-year buildout. 

Micron, SanDisk, Nvidia, and AMD were all up on Thursday, as a combined effect of Samsung's read-through, reset the short-term narrative for the whole sector.

This recovery illustrates what the charts show: MU bounced from the $707.30 swing low, recaptured the 50-period EMA at $859.70, and is now attempting to break the descending trendline at $886 to $903. The 200-period EMA at $927 represents the next major resistance. The RSI has advanced to around 61 and is moving into the bullish zone. The current test is significant due to the prior two rejections of the trendline at $1,240 and $1,000. A clear break of $903.40 would create the first higher high in over a month.

Micron's June 25 report of their fiscal Q3 2026 results saw them record $41.46 billion in sales (a more than 346% YoY increase) with an 85% (39% last year) non-GAAP gross profit margin, record operating cash flow, and an outlook with higher expected operating results, all measures of record performance and growth. Falling 41% from $1,255 to $707 despite these stellar results shows three concurrent phenomena. 

First, CXMT's $8.6 billion IPO in Shanghai started trading and opened 466% higher, re-fueling concerns of DRAM supply competition from China (CXMT does not offer HBM). Second, Apple made moves to source memory from Chinese suppliers for non-U.S. products, which would jeopardize one of the biggest contracts Micron has. Third, the AI Chip sector saw a large, forced sell-off as Nvidia's circular financing and Meta's declining free cash flow hit the market.

Micron's 16 customer agreements, 14 constituting almost $100 billion with hyper-scale customer firms and MoUs through 2030, are considered extreme take-or-pay contracts for Micron's business model. Micron's customers must pay for and take agreed volumes of product at agreed prices regardless of the state of the market for those products. 

Micron will support the agreements with almost $22 billion of customer deposits and other commitments. HBM4 is being shipped to Micron's largest AI customer, and qualification samples have been sent to a second large customer. Development of HBM4E is targeted for 2027. 

Micron is also qualifying 256GB DDR5 RDIMMs for supply to the next generation of AI servers. Diversification agreements with Anthropic, GM, and Bechtel are creating structures for Micron's business across cloud computing, automotive, and industrial manufacturing businesses.

On July 24, under a Rule 10b5-1 trading plan initiated in January, CEO Sanjay Mehrotra sold more than 40,000 shares for about $37.3 million. While he still holds the majority of his shares, the planned selloff and the CXMT and Apple-related news, increased uncertainty in the market, and negative effects on the share price.

From a technical standpoint, MU has rebounded from a low of $707.30 and is likely testing a descending trendline, which is in the $886 - $903 zone. The 50-period EMA is at $859.70, and MU has claimed this level. The RSI sits at approximately 61 and is considered bullish and not in the overbought zone.

The following resistance levels are at $903.40, $927 (200 EMA), $959.10, and $1,028.10, while the following support levels are at $859.70 (50 EMA), $806.60, $759.30, and $707.30.

Micron (MU) Price Chart - Source: Tradingview

A close above $903.40 represents MU's first higher high and confirms a breakout of the trendline. If MU is rejected at the current price levels, the corrective structure will remain and the focus will be on $806.60.

Key Levels

• Today: Closed +18% with a range of $789.01 - $868.00 (last close $739.00)
• Catalyst: Micron's Q2 earnings of 2023 showed a long term supply shortage of memory chips predicted by Samsung.
• From Peak: Down 41% from $1,255 ATH; 52 Week Range: $103.38 - $1,255
• Q3 FY2026: $41.46B (+346% YoY with an 85% Non-GAAP Gross Margin), Record High Operating Cash Flow.
• Contracts: 16 SCAs with 14 having a minimum commitment of ~$100B through 2030, HBM4 high volume shipment.
• CEO Sale: Sold for a total of $37.3M on July 24 under a Rule 10b5-1 plan initiated July 2026.
• Resistance: $903.40 (trendline), $927 (200 EMA), $959.10, $1,028.10
• Support: $859.70 (50 EMA), $806.60, $759.30, $707.30

Why Is Micron Stock Rising Today Despite Falling 41% From Its High?

Micron was up +18% on Thursday due to Samsung's Q2 2026 earnings indicating a long term memory chip supply shortage caused by AI infrastructures. Samsung's earnings directly countered the bearish Micron selling from $1,255 to $707 on CXMT's IPO and Apple's Chinese supplier waiver requests. With supply constraints of Samsung's memory chip, the bearish market Micron threat CXMT, who is years away from HBM, looks marginal. Micron's increase of +18% was partially due to the market seeing the RSI correction and Micron's increase from $707.30 and partially due to Micron's earnings of $41 billion as a result of confirmation of demand given by Samsung.

Why Is Micron Stock Down 41% From Its High Despite Record Earnings?

Micron achieved exceptional results in fiscal Q3 2026, reporting a revenue of $41.46 billion (+346% yoy), with non-GAAP gross margins at 85% and record operating cash flow. The falling price from $1,255 had nothing to do with the results. There were three external factors. 

There are concerns about renewed competition of Chinese memory companies with CXMT's HBM-less $8.6 billion IPO in Shanghai. There are also concerns with Apple's request for government waivers so they can procure memory from CXMT and YMTC for their China-bound products, as well as concerns with CN's memory chip pricing and Nvidia's financial circularity and Meta's free cash flow concerns. These are all valid concerns, however, Samsung's Thursday earnings further the supply constriction argument that drove Micron to $1,255.

Micron surged 18% on Thursday, driven by Samsung's Q2 results and furthering the argument for long-term supply shortages in memory chips. This partially begins to reverse the 41% drop from Micron's $1,255 pinch. The fundamental argument has not changed. They are currently testing resistance at the $903 price point (Micron’s 200-day Exponential Moving Average) and $927. The Relative Strength Index is at a constructive level of 61. A close above $903.40 would mark the first higher high post sell off.