Micron rises after labor dispute at Taiwan site and sector rebound

What happened

Micron (MU) rose 3.0% on October 19, 2026, after a Taoyuan union authorized strike action and memory-chip stocks staged a rebound. The union vote was 1,994 in favor and 14 against, and the union said it will launch a strike over a bonus disagreement; Micron's Taoyuan facilities account for most of the company's DRAM production in fiscal 2026. Separate reports said the sector's bounce followed a prior selloff driven by concerns about AI spending and competition, and that Micron shares rose between about 2.6% and 5.3% in early trading during the rally. The company also announced a technology webinar on Wednesday, October 21, 2026, at 8 a.m. Mountain Time, as noted in a company filing.

How big was the move

The stock closed at $904.90 and rose 3.0% on the day, an ordinary session for this stock (a normal-sized move). Trading volume was 0.9 times its 20-day average, and the stock opened 3.9% above the previous close. The S&P 500 rose 0.4% on the day while the Technology sector median rose 1.1%, making the stock's gain 1.9 percentage points better than the sector median. The move represented 0.7 times a typical daily move for this stock and came with a beta of 2.54, reflecting that the stock tends to move more than the market. Over the last five sessions the stock fell 8.5%, while the S&P 500 fell 1.5%.

The technical picture

Short-term indicators showed recent weakness against a longer-term uptrend. The stock was 11.8% below its 20-day moving average and 8.0% below its 50-day moving average, while it was 25.5% above its 200-day moving average. The 50-day average is above the 200-day average, a sign of an established uptrend, and the stock has Time above the 200-day average of 348 consecutive trading days. The Relative Strength Index (14 days) was 38, inside a neutral range, and the stock was 27.9% below the 52-week high. Recent price action showed weakness over shorter horizons: it fell 10.9% over one month and fell 6.8% over three months, yet it rose 346.8% over one year, leaving it 330.8 percentage points ahead of the S&P 500. Volatility was 69% annualized over 60 days, higher than 80% of its own readings over five years.

Fundamentals and valuation

For the four quarters through September 3, 2026, revenue was $133.19 billion, which grew 256.3% from a year earlier and followed growth of 167.0% in the prior quarter. Diluted earnings per share were $74.22, rose 877.9% from a year earlier, and gross margin was 80.7% compared with 39.8% a year earlier. Operating margin was 75.0% (a year earlier: 26.4%), free-cash-flow margin was 39.7% and return on invested capital was 50.4%. The balance sheet showed net cash of $33.68 billion and share count over one year increased by 2.0%.

Those profit and cash-generation metrics help explain why investors have kept interest despite recent pullbacks. Price to trailing earnings was 12.2 times trailing earnings, while price to forward earnings was 5.2 times expected earnings and free-cash-flow yield was 5.3%. The Price to trailing earnings figure is lower than 75% of its own readings over the past five years (five-year median: 21.8 times earnings), suggesting the stock trades cheaper on that metric than it typically has in recent years.

Earnings and analyst expectations

Micron's last report was on September 30, 2026, when earnings per share were $33.42 against $31.77 expected, 5.2% above estimates. The company has beaten estimates for 14 consecutive quarters and the average surprise over the last four reports was 19.6% above estimates. Typical two-day reaction after recent reports was fell 0.8%. The next report is scheduled for December 23, 2026. Analysts' consensus price target was $1,588.85, which is 75.6% above the closing price, and 83% of the 70 analysts with a rating had the stock rated Buy or higher, giving a consensus rating of Buy.

PromtFinance scoring ranked the company highly on multiple dimensions: Value 81 (Strong), Growth 99 (Exceptional), Quality 92 (Exceptional), Momentum 95 (Exceptional), and Revisions 98 (Exceptional), while Stability was 41 (Weak). Those internal scores reflect the contrast between rapid earnings and margin expansion and the stock's outsized short-term swings.

What to watch

• Oct. 21, 2026: technology webinar at 8 a.m. Mountain Time, as announced in a company filing
• Taoyuan union vote: 1,994 in favor and 14 against; union said it will launch a strike over a bonus disagreement
• Dec. 23, 2026: next earnings report date
• Price to trailing earnings: 12.2 times trailing earnings
• Net cash on the balance sheet: $33.68 billion