Earnings update: LRCXupdated 11:32 p.m. ET, Oct. 21 · refreshed every 15 minutes
LRCX was at $260.81 in after-hours trading at 4:00 p.m. ET on Oct. 21, 0.0% from the $260.81 close before the report.
Lam Research Corp reported fiscal Q1 2027 results on Oct. 21 after the close: revenue $8.22B vs $8.31B expected (-1.0%); earnings per share $2.20 vs $2.22 expected.
LRCX is down 24.9% from its 3-month high and 39.7% from its 52-week high. Whether it climbs back is something nobody can know, but the stock's own history offers useful context.
Below are LRCX's past drops of 20% or more, how deep each one went and how long the comeback took.
The chart below tracks LRCX's daily closing price from April 27, 2026 to Oct. 21, 2026. Over that stretch it is up 0.7%, from $259.01 to $260.81, with a high of $432.87 on June 30, 2026 and a low of $248.31 on April 29, 2026. Each red circle marks a week in which company insiders sold shares on the open market (8 weeks in this period; bigger circles mean more money). There are no green diamonds: no insider bought on the open market in this window.
LRCX share price and insider trades
Daily closing price, Apr 27, 2026 to Oct 21, 2026 · dots are open-market trades by company insiders (SEC Form 4), one per week
Latest
$260.81
Oct 21, 2026
Change
▲ +0.7%
since Apr 27, 2026
High
$432.87
Jun 30, 2026
Low
$248.31
Apr 29, 2026
Share price Insider sales: $106.0M in 11 trades Insider buys: noneBigger dot = more money. Hover a dot or the line for details.
LRCX's past 20%+ drops and recoveries
The table below shows LRCX's past 20%+ drops and recoveries. Feb. 25, 2026 has the highest drop (-20.0%) and July 10, 2024 the lowest (-47.1%).
Peak
Low
Drop
Back to the peak
2024-07-10
2025-04-04
-47.1%
109 trading days (2025-09-11)
2026-02-25
2026-03-06
-20.0%
23 trading days (2026-04-09)
2026-06-30
2026-07-29
-41.8%
not yet
Also worth knowing about LRCX
No open-market insider purchases in 90 days, against $40.5 million of sales.
On share issuance, the dilution score is 10/100 (low). Share count down 1.1% over a year.
“With AI driving higher semiconductor demand and greater device complexity, our focus on operational execution helped Lam deliver record revenue, profit, and earnings per share in the September quarter”
— Tim Archer, Lam Research's President and Chief Executive Officer · SEC filing
From the company's earnings release filed with the SEC on 2026-10-21 (Form 8-K).
What would change the picture for LRCX
These are the specific events and levels to watch. None of them is a prediction.
Insider buying: none on the open market in 90 days. A purchase by an executive or director would be the first in at least three months, and it would show up on SEC Form 4 within two business days.
Analyst ratings: the average score moved from 4.05 to 4.1 over three months (on a scale where 5 is strong buy and 1 is strong sell). A run of downgrades after earnings usually shows up here first.
Price levels: a close above $432.87 would be a new 52-week high, 66.0% above the latest close of $260.81; a close below $138.95 would be a new 52-week low, 46.7% below it.
Growth: revenue rose 26.0% year over year in the quarter ending Jun 2026 (trend: steady). At a P/E of 45.3, a slowdown would matter more than at a lower multiple.
New shares: dilution risk is low now. A new shelf registration (S-3) or a prospectus supplement (424B) for an offering would raise it.
LRCX history: what happened after similar moves
Since 2023, LRCX fell 16.0% or more in a month 4 times (separate episodes, not counting the current one). Three months later it was higher in 1 of 3 cases; the median change was -10.5%.
Past moves don't predict the next one; they show how volatile the stock has been.
Month ending
Move in that month
1 month later
3 months later
2024-07-25
-16.0%
-4.2%
-17.3%
2025-04-03
-17.5%
+13.3%
+50.9%
2026-07-16
-17.4%
+3.6%
-10.5%
2026-09-14
-18.8%
+10.2%
not yet
The bottom line
LRCX is down 24.9% from its 3-month high and 39.7% from its 52-week high. Nobody knows if or when it will recover; history only shows how past drops played out.
In the last three years, 2 drops of 20% or more fully recovered, after about 66 trading days on average.
Questions people also ask
Do analysts think LRCX is a buy?
35 of the 41 analysts who cover Lam Research Corp rate it a buy or strong buy, for a consensus of Buy. Ratings describe analysts' views, not a guarantee, and they change after earnings. More →
Are LRCX insiders buying or selling?
Insiders sold $40.5 million of LRCX on the open market in 90 days and bought none. Sales are often routine (taxes, diversification, pre-planned plans); purchases with their own money are the stronger signal.
Who is the largest shareholder of LRCX?
Among investment managers that file Form 13F, BlackRock Inc. reported the largest LRCX position ($57.5 billion). 3100 institutions reported holding LRCX for Q2 2026.
Does LRCX pay a dividend?
Yes: $1.04 per share over the last 12 months, about 0.4% at today's price.
Is Lam Research Corp profitable?
Yes. Lam Research Corp had $23.2 billion of revenue over the last 12 months with a net margin of 31.3% and a P/E of 45.3.
Is Lam Research Corp issuing new shares?
Dilution risk reads low (10/100); the share count fell 1.1% in a year.
Dates to watch for LRCX
Insider trades can come any day: they must be filed on Form 4 within two business days.
Date
Event
Why it matters
Wed Oct 28, 2026
Federal Reserve rate decision
Market odds: 87% hold, 1% cut, 12% hike.
Mon Nov 16, 2026
13F filing deadline
Funds disclose what they held on 2026-09-30, including LRCX.
Fri Nov 20, 2026
Monthly options expiration
Often heavier trading and bigger swings in widely traded stocks.
Key terms on this page
P/E ratio
Price divided by the last 12 months of earnings per share. A P/E of 20 means investors pay $20 for each $1 of yearly profit. It is only defined when the company is profitable.
Form 4
The SEC form a company's officers, directors and 10% owners must file within two business days of buying or selling its stock.
Open-market trade
A purchase or sale on the exchange at the market price, paid with the insider's own money (code P or S on Form 4), as opposed to option exercises, grants or gifts.
Form 13F
A quarterly SEC report listing the U.S. stock holdings of every investment manager with more than $100 million. It is due 45 days after each quarter ends, so it shows positions with a delay.
Dilution
When a company issues new shares, each existing share owns a smaller piece of the company. Common sources: stock offerings, convertible debt and large stock-based pay.
Form 8-K
The SEC form for material events between quarterly reports: earnings releases, deals, executive changes, stock offerings and similar news.
52-week high / low
The highest and lowest daily closing price over the past year (about 252 trading days).
Where these numbers come from
Every number on this page is computed from the data when the page is refreshed (usually daily); nothing is typed in by hand. This is information, not investment advice.
Price: daily closing prices through Oct. 21, 2026; changes use 5, 21 and 63 trading days; the 52-week range uses the last 252 closes.
Insider trades: SEC Form 4 filings for the last 90 days, counting only open-market purchases (code P) and sales (code S); option exercises, grants, gifts and filings with data errors are left out.
Analyst ratings: counts of current ratings from 41 analysts, compared with three months ago.
Earnings dates and estimates: a market-data calendar; reported vs expected EPS for the last 4 quarters.
Valuation and growth: revenue, earnings, margins and share counts from the company's SEC filings (XBRL data, latest quarter Jun 2026); P/E and price/sales use the latest close.
Fund ownership: SEC Form 13F filings for Q2 2026.
Dilution: share-count changes and offering-related SEC filings (shelf registrations, prospectus supplements, convertible notes) over two years, scored 0-100.
History: 21-trading-day moves over about three years of daily closes, counted once per episode.
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How this article was made: it was generated from SEC filings and market data with automated tools and is published under Dean Holloway's editorial responsibility. Spotted an error? Tell us and we will correct it.
Sources: SEC EDGAR (Form 4, 8-K/6-K, prospectuses, XBRL share counts) and daily closing prices. Insider sales are often routine (taxes, diversification, pre-planned 10b5-1 plans). Not investment advice.
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