MARKET TAPEINDICES / ETF PROXIES
VIX 16.39Daily close · Oct 1
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Micron Technology · earnings reaction edition

MU earnings
2026-03-18

What price, participation and market-relative performance did after this report.

AFTER THE REPORT2026-03-18
-38.0%0.0%+13.0%Report close+20 sessions
MUSPYReturn from pre-report close
Next-open gap-7.96%
First session-3.78%
Five sessions-17.25%
20 sessions-0.97%

Objective read

The reaction, under the hood

The first regular session closed -3.78% from the pre-report close of $461.73. Volume ran at 2.18 times the prior 20-session baseline, which HPT classifies as elevated participation.

By session 20, MU was -0.97% while SPY was +6.08%. The -7.06% spread shows whether the move remained company-specific or faded back toward the broad tape.

Before the report, price was above its 55-day EMA and RSI measured 64.2. The first-session range was 1.47 ATR with the close at 64% of that session's range.