Micron plunged 17.5% after reports it suspended $4.5 billion Taiwan plant

What happened

Micron fell 17.5% to close at $656.39 on November 5, 2026, after Bloomberg-reported coverage said it suspended plans for a $4.5 billion memory-chip plant in Taoyuan, Taiwan (MU), coinciding with a heavy multi-session sell-off.

How big was the move

The stock fell 17.5% on the day and fell 29.7% over the last five sessions, while the S&P 500 fell 4.4% on the day and fell 4.7% over five sessions. Trading volume was 2.8 times its 20-day average and the session move was 4.0 times a typical daily move for this stock. Compared with its sector, the stock's performance was 10.4 percentage points worse than the Technology sector median, which fell 7.1% on the day. The stock has a beta of 2.68, meaning it tends to move more than the market. The move was a large one with mixed drivers: part market and sector, part company-specific, and the timing of the reports coincided with the decline.

The technical picture

The stock was 26.7% below its 20-day moving average and 32.1% below its 50-day moving average, while it was 13.1% below its 200-day moving average. The 50-day average is above the 200-day average, a sign of an established uptrend despite the recent slide. Its Relative Strength Index (14 days) was 27, below 30, a level often called oversold. The stock was 47.7% below the 52-week high and had fell 39.7% over one month and fell 25.2% over three months. Volatility was 69% annualized over 60 days, higher than 80% of its own readings over five years, reflecting unusually large price swings. Over one year the stock rose 201.1%, leaving it 192.5 percentage points ahead of the S&P 500 for the period.

Technical measures underline how sharply sentiment shifted. The stock's one-year performance of 201.1% contrasts with the recent collapse: a move 4.0 times a typical daily swing and trading at 2.8 times normal volume signals forced or accelerated selling. The oversold RSI and the 50-day average sitting above the 200-day average mean short-term pressure has pushed price well below longer-run momentum indicators rather than reversing them.

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 accelerated from growth of 167.0% one quarter earlier. Diluted earnings per share were $74.22, which rose 877.9% from a year earlier. Gross margin was 80.7% compared with 39.8% a year earlier, and operating margin was 75.0% versus 26.4% a year earlier. Free-cash-flow margin was 39.7% and return on invested capital was 50.1%. The balance sheet showed net cash of $33.68 billion, while share count over one year increased by 2.0%.

On valuation, the stock traded at 8.8 times trailing earnings and 3.7 times expected forward earnings, with a free-cash-flow yield of 5.3%. Its price to trailing earnings was lower than 88% of its own readings over the past five years, and the five-year median was 21.8 times earnings. In short, the company reported exceptional growth and profitability metrics while trading at a historically low price-to-earnings multiple relative to its recent history.

Micron's PromtFinance scores underscore that contrast: Growth 99 (Exceptional), Quality 92 (Exceptional) and Value 84 (Strong) rank highly within the sector, while Stability scored 40 (Weak). Those scores reflect rapid fundamental improvement alongside unusually large price swings.

Earnings and analyst expectations

Micron's last report was September 30, 2026, when earnings per share were $33.42 against $31.77 expected, 5.2% above estimates. The company had beaten estimates for 14 consecutive quarters, with an average surprise over the last four reports of 19.6% above estimates. The typical two-day reaction after recent reports was that the stock fell 0.8%. The next report was scheduled for December 23, 2026.

Seventy analysts had ratings on the stock; 83% of those ratings were Buy or Strong Buy and the consensus rating was Buy. The consensus price target was $1,588.85, which was 142.1% above the closing price.

Analyst optimism and the stretched divergence between fundamentals and market price are both notable. The company reported strong revenue and profit expansion, a net cash position of $33.68 billion and return on invested capital of 50.1%, yet the market priced the stock at 8.8 times trailing earnings. That valuation sits well below its five-year median of 21.8 times earnings, suggesting investors are pricing in substantial near-term risk relative to the company’s recent profit performance.

What to watch

• December 23, 2026: next scheduled earnings report, including updated revenue and guidance figures
• Any official Micron statement clarifying the status of the Taoyuan, Taiwan plant and the labor dispute, as reported by Bloomberg
• Intraday and multi-session price action and volume following the November 5, 2026, close, given trading volume was 2.8 times its 20-day average
• Regulatory or local government announcements related to the Taoyuan site and related permits or labor developments
• Changes in analyst estimates or revisions after the company updates on capital plans or operational impacts