Key Highlights

  • USD 833.59 was the November 2, 2026 close for Micron (NASDAQ:MU), down 5.8% from USD 884.74 and about 33.6% below its 52-week high of USD 1,255.00 (simple arithmetic on published market data).
  • USD 54.23 billion of fiscal fourth-quarter revenue, reported September 30, 2026, compared with about USD 11.3 billion a year earlier, with a GAAP gross Margin of 86.8%.
  • USD 61.5 billion, plus or minus USD 1.5 billion, is the Revenue guidance for fiscal first-quarter 2027, with non-GAAP Earnings of USD 38.15 a share, plus or minus USD 1.00.
  • About 2.6% was Micron's gain on November 3, 2026, as the Philadelphia Semiconductor index rose about 2.6% and chip stocks partly reversed Monday's slide.

What Happened on November 2

Micron shares closed at USD 833.59 on Monday, November 2, 2026, a fall of 5.78% from USD 884.74, on Volume of about 29.9 million shares against a 30-day average of about 26.3 million, according to published market data. Financial coverage tied the drop to a cautious December-quarter outlook from Kioxia, the Japanese flash memory maker, which guided revenue and profit broadly flat on the September quarter, with profit below analyst estimates, and to renewed worries about AI spending. The Nasdaq Composite fell 1.07% that day. A second tracker showed a smaller intraday decline of about 3%, so the exact size depends on the timestamp and on whether one reads the close or the session low.

Why the Quarter Still Looks Extraordinary

Micron reported fiscal fourth-quarter results for the quarter ended September 3, 2026, on September 30. Revenue was USD 54.23 billion, up about 379% from the year-earlier quarter, and fiscal 2026 revenue reached USD 133.19 billion against USD 37.38 billion a year before. Memory makers earn margins like 86.8% when DRAM Supply is tight and AI data centers pay up for capacity, so prices rise faster than costs. The mechanism cuts both ways: when a supplier signals slower price increases, investors discount peak profits quickly. Adjusted free Cash Flow was USD 33.20 billion in the quarter, and cash, marketable investments and restricted cash totalled USD 73.48 billion.

Risks and What to Watch Next

The main risk is cyclicality. Published commentary points to slower DRAM and NAND price increases and to rising capacity at Chinese rivals such as ChangXin Memory Technologies, though Micron has not confirmed either point. Net Capital spending was USD 10.77 billion in the fourth quarter alone, which raises the stakes if Demand softens. Guidance of USD 61.5 billion is about 13.4% above the fourth-quarter figure (simple arithmetic), so the bar stays high. One report says buyback limits tied to the CHIPS Act may lapse on December 9, 2026, a single-source claim Micron has not confirmed. Investors will watch memory price data, peer guidance and customer commentary on AI budgets.

Where Things Stand

Micron fell 5.8% on November 2 because investors treated a cautious peer outlook and AI spending worries as a reason to take profits after a very large run, not because Micron's own numbers weakened. The September 30 report showed USD 54.23 billion of revenue and guidance of USD 61.5 billion for the current quarter. A rebound of about 2.6% on November 3 shows how sensitive Micron (NASDAQ:MU) is to daily sentiment. The next test is whether memory prices keep rising as guided. Nothing here is a forecast of the share price.