MU
Micron Technology, Inc. · Technology · Semiconductors
$1,035.84
-4.79% today · -5.61% 1W
Oct 8 close or latest
PreviewWhy it's moving
Memory stocks fall on macro concerns
- MU −4.79% on the last session vs SPY −0.42%: −4.4 pts of stock-specific move.
- News: Memory and storage peers declined similarly; Samsung's slowing growth and treasury yields cited as headwinds.
- Memory & storage basket -3.7% (-3.2 pts vs SPY; SNDK -4.9%, SKHY -4.3%, STX -4.1%, WDC -3.0%): the stock moved with its peers. Overnight: SK Hynix (Seoul) -2.4%, Samsung (Seoul) -2.4%.
- Aftermath, big drop (-4.8% on the day (line -4.2%)): After its 64 big drops in the past 5 years, MU typically gained 3.3% over the next month (median) and was higher 58% of the time; half the outcomes fell between -5.8% and +9.3%. An ordinary month: +4.1%. Among S&P 500 stocks after big drops, that ranks #129 of 498.
- 229 Reddit mentions in the past 24 hours, 73% positive over the week · today's pace is 1.4× its recent daily average.
- 11 analyst actions in the past 10 days (5 positive, 0 negative); latest: DA Davidson maintained Buy, raised target $2,100 → $3,000.
- Market backdrop (Wed): Minutes of the Federal Open Market Committee, September 15-16, 2026; S&P futures +0.03%, 10-year yield -1bp in the 30 minutes after.
Assembled from Wallsti's own signals and the session's headlines and filings read by AI (Claude); it can misread, so the sources are linked.
Latest session
Big drop
-4.8% on the day (line -4.2%)
After its 64 big drops in the past 5 years, MU typically gained 3.3% over the next month (median) and was higher 58% of the time; half the outcomes fell between -5.8% and +9.3%. An ordinary month: +4.1%. Among S&P 500 stocks after big drops, that ranks #129 of 498.
See the aftermath
Latest session
Mention spike (Trendy)
390 mentions vs 114.3/day the week before
After its 50 mention spikes in the past 5 years, MU typically gained 1.2% over the next day (median) and was higher 62% of the time; half the outcomes fell between -1.2% and +3.2%. An ordinary day: +0.1%. Among S&P 500 stocks after mention spikes, that ranks #9 of 92.
See the aftermath
Latest session
Theme selloff
Memory & storage peers -3.2 pts vs SPY; the stock -4.8%
After its 71 theme selloffs in the past 5 years, MU typically gained 3.9% over the next month (median) and was higher 59% of the time; half the outcomes fell between -4.5% and +14.1%. An ordinary month: +4.1%. Among S&P 500 stocks after theme selloffs, that ranks #18 of 81.
See the aftermath
After each kind of event
| Event | Events | Reaction day | 1 day | 1 week | 1 month | 1 quarter |
|---|---|---|---|---|---|---|
| Any day | 1,254 | — | +0.1%#163 H | +0.8%#73 H | +4.1%#16 H | +8.8%#65 M |
| Big drop latest session (-4.3% or worse) | 66 | — | -0.1%#297 H | 0.0%#304 H | +3.3%#129 H | +8.6%#208 M |
| Big gain (+5.6% or better) | 75 | — | +0.2%#200 H | +2.2%#26 H | +3.8%#138 H | +16.8%#130 M |
| Earnings beat | 18 | -1.9%#341 M | -0.5%#323 M | -0.3%#254 M | +0.9%#252 M | +8.3%#180 M |
| Earnings miss | 2 | +1.9%– | +0.4%– | -4.5%– | +13.1%– | +11.3%– |
| 52-week high | 14 | — | -0.4%#270 M | +3.4%#83 M | +9.0%#148 M | +34.6%#112 L |
| 52-week low | 1 | — | -12.9%– | -5.8%– | +8.2%– | +61.5%– |
| Crossed above 200-day avg | 6 | — | -1.3%#465 L | -2.5%#462 L | -4.8%#362 L | -5.0%#335 L |
| Crossed below 200-day avg | 5 | — | -2.5%#379 L | +0.4%#242 L | +1.0%#249 L | +7.6%#188 L |
| RSI oversold | 4 | — | +1.1%#232 L | -2.4%#334 L | +10.6%#98 L | +0.6%#282 L |
| RSI overbought | 18 | — | -1.0%#496 M | +3.5%#135 M | +7.3%#194 M | +21.8%#85 M |
| Volume spike | 10 | — | +0.7%#171 M | -2.8%#301 M | +2.3%#177 M | +18.2%#77 M |
| Theme selloff latest session | 73 | — | +0.2%#36 H | +0.5%#38 H | +3.9%#18 H | +14.3%#12 M |
| Theme rally | 98 | — | -0.1%#57 H | +1.7%#17 H | +4.1%#17 H | +19.8%#5 M |
| Mention spike (Trendy) latest session | 50 | — | +1.2%#9 H | +0.7%#32 H | +4.3%#13 H | +21.1%#2 M |
| Analyst upgrade | 3 | — | +4.0%#8 L | +0.7%#8 L | +27.9%#6 L | +65.9%– |
| Analyst downgrade | 1 | — | +5.5%– | +3.4%– | +23.5%– | +75.5%– |
| Insider buy | 1 | — | +0.6%– | +7.3%– | +16.0%– | +23.7%– |
| Insider unplanned sale | 12 | — | -1.3%#30 M | +4.7%#5 M | +12.2%#9 M | +25.2%#7 L |
Median gain from the close of the session the event was known, over each holding period; Reaction day (earnings only): the session that first traded on the report, from the close before it; #rank among the S&P 500 stocks after the same kind of event (#1 = best). "Big" is MU's own: its worst / best 10% of days over the prior 2 years. Highlighted: happening in the latest session or today, from the live quote.
Volume spike
Volume at least 3x the prior 20 sessions' average.
| Holding | Events | Median (likely range) | Confidence | Rank | Up | vs SPY | Range of outcomes (worst · 25–75% · median · best) | vs S&P 500 stocks (their medians) |
|---|---|---|---|---|---|---|---|---|
| 1 day | 10 | +0.66% (-1.9 to +1.2) | Medium | #171 of 485 | 60% | +0.54% |
-16%
+4%
|
|
| 1 week | 10 | -2.79% (-7.3 to +3.7) | Medium | #301 of 484 | 40% | -2.87% |
-14%
+12%
|
|
| 1 month | 10 | +2.34% (-0.6 to +5.3) | Medium | #177 of 482 | 70% | +2.61% |
-26%
+21%
|
|
| 1 quarter | 10 | +18.17% (+1.4 to +29.1) | Medium | #77 of 478 | 80% | +18.85% |
-18%
+75%
|
Range of outcomes: all of MU's volume spikes in the past 5 years, from the worst to the best result over each holding period; the box holds the middle half, the tick is the median. A wide box means the median alone says little. Hover the median for the average.
Volume spike by trend
| When it happened | Events | 1 day | 1 week | 1 month | 1 quarter |
|---|---|---|---|---|---|
| Long trendAbove its 200-day avg now | 7 | +0.3%L vs +0.1% | 0.0%L vs +1.0% | +1.5%L vs +5.9% | +27.2%L vs +21.3% |
| Below its 200-day avg | 2 | -6.9%– vs +0.1% | -10.1%– vs +0.6% | -10.3%– vs +1.1% | +11.2%– vs +3.4% |
| Medium trendAbove its 50-day avg now | 5 | +0.3%L vs 0.0% | 0.0%L vs -0.1% | +1.5%L vs +2.8% | +27.2%L vs +14.8% |
| Below its 50-day avg | 4 | +0.2%L vs +0.3% | -6.1%L vs +1.8% | +3.1%L vs +4.5% | +15.3%L vs +2.0% |
| Short trendAbove its 20-day avg now | 7 | +0.3%L vs +0.1% | 0.0%L vs +0.5% | +3.2%L vs +3.3% | +9.2%L vs +10.0% |
| Below its 20-day avg | 3 | +2.3%L vs +0.2% | -5.5%L vs +1.2% | +0.9%L vs +4.6% | +29.1%L vs +5.7% |
The same event split by where MU stood against its 200-, 50- and 20-day averages when it happened (a dip in an uptrend vs a falling knife); "vs" is the plain any-day median in that trend; "now" marks where it stands today. Splitting halves the evidence, so watch the confidence letters: H / M / L.
Latest volume spikes
| Event | Entry | 1 day | 1 week | 1 month | 1 quarter | |
|---|---|---|---|---|---|---|
| Sep 11, 2025 | Sep 11 @ $150.33 | 3.1x average volume, +7.5% on the day | +4.4% | +12.2% | +20.7% | +75.3% |
| Mar 21, 2025 | Mar 21 @ $94.36 | 3.1x average volume, -8.0% on the day | +2.3% | -6.6% | -25.8% | +29.1% |
| Dec 18, 2024 | Dec 18 @ $103.37 | 3.3x average volume, -4.3% on the day | -16.2% | -13.6% | +5.3% | -6.6% |
| Sep 26, 2024 | Sep 26 @ $109.19 | 4.5x average volume, +14.7% on the day | -2.2% | -7.3% | -1.7% | -18.2% |
| Mar 21, 2024 | Mar 21 @ $108.96 | 4.4x average volume, +14.1% on the day | +0.3% | +7.4% | -0.6% | +27.1% |
| Dec 21, 2023 | Dec 21 @ $84.68 | 3.9x average volume, +8.6% on the day | +1.2% | 0.0% | +3.2% | +37.2% |
| Sep 28, 2023 | Sep 28 @ $64.48 | 3.5x average volume, -4.4% on the day | +4.3% | +5.9% | +0.9% | +32.1% |
| Jun 29, 2023 | Jun 29 @ $63.50 | 3.1x average volume, -4.1% on the day | -1.9% | -5.5% | +11.2% | +1.5% |
| Mar 29, 2023 | Mar 29 @ $62.59 | 3.3x average volume, +7.2% on the day | -0.7% | -10.3% | +1.5% | +1.4% |
| Nov 19, 2021 | Nov 19 @ $81.08 | 3.1x average volume, +7.8% on the day | +1.0% | +3.7% | +9.2% | +9.2% |
Aftermath: entry is the close of the first session the event was fully known (the same session for price moves, the reaction session for earnings, the next session for Reddit, analyst and insider events, which are dated by day). Repeats within a few sessions count as one event. Past performance after an event says nothing certain about the next one. Not advice.