Micron Craters 20% in Two Days — So What Happens Next?

Micron Technology (NASDAQ: MU) suffered a bruising two-day rout last week, tumbling more than 20% from its all-time high of $1,079 to close at $864 on Friday, June 5 — its worst back-to-back decline since April 2025.

The sell-off erased hundreds of billions in market cap, but the question for traders now isn’t what went wrong — it’s what comes next.

What Triggered the Sell-Off?

The catalyst was Broadcom’s (AVGO) fiscal Q2 earnings, where CEO Hock Tan declined to raise the company’s full-year AI revenue forecast. In a sector where valuations had priced in perpetual growth, that caution alone was enough to ignite panic.

The PHLX Semiconductor Index plunged 10.3% — its steepest single-day drop since March 2020 — as the market began questioning whether AI infrastructure spending was beginning to plateau. A stronger-than-expected May jobs report then piled on, dashing rate-cut hopes and hammering high-multiple growth names.

Retail investors, who had made MU their most-bought stock of the past month, may also have accelerated selling to raise cash ahead of the anticipated SpaceX IPO, according to BNP Paribas strategist Greg Boutle.

Where Does the Chart Stand Now?

Technically, the chart now sits at a critical juncture. After an extraordinary 780% surge in nine months, MU had become dangerously overextended — trading more than 40% above its 50-day moving average (~$533) at its peak, with a daily RSI that had briefly spiked above 80. The pullback to $864 has restored the RSI to a more neutral 56, and the primary trend indicators — the rising 50-day, 100-day, and 200-day moving averages — remain intact and bullish.

The immediate line in the sand is whether $864 holds as support. A stabilisation here would suggest a healthy consolidation within the broader uptrend. However, a break lower opens the door toward the $750–$800 range, and ultimately the 50-day moving average near $533, which would represent a true test of the AI memory bull thesis.

What to Watch This Week

Two near-term catalysts could define direction this week. First, the US May CPI report on June 10 — a hot print could accelerate the sector de-rating and push high-multiple names like MU lower still. Second, and more importantly, Micron’s own fiscal Q3 earnings on June 24, where analysts expect revenue of $33.9 billion and EPS of $19.29. Critically, guidance above $40 billion for Q4 would likely reignite the rally; anything less could deepen the pain.

For long-term bulls, Friday’s sell-off changes little about Micron’s HBM story. The company confirmed HBM4 certification from Nvidia and reports its HBM capacity is fully sold out through 2026. The dip may yet prove a buying opportunity — but only for those with the stomach for volatility.