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LRCX$319.70 −0.04%+ Alert
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● 10 Oct · US closed · scored 15:49
● Sat 10 Oct 2026/US closed · opens Mon 14:30 BST/101 names scored today/last score 10:32 BSTResearch, not advice · every call is published at Proof

LRCX

Lam Research Corp
$319.70 · −0.04% vs $319.82 close · scored 15:49 · stale
Decision brief
BEARISH · 79/100
What changed
Composite weakened 23.5 points.
Evidence is stale — treat this read cautiously.
What would change the view
composite rises above -15 · confidence deteriorates materially from 79/100
For the read
options volume favours puts · open interest agrees with the read · signal has been stable · evidence confidence is high
Against / uncertainty
No material contradiction isolated.
The read
Strongly bearish, well evidenced, but it’s confirming price rather than calling it.
−100 bearish0bullish +100
−53.0 composite┆ −29.5 yesterday (−23.5)−55.0 vs a week ago
Evidence
79 / 100 · top 4% today
28,715 contracts · quality 90 · stability 0.81
01

Why it’s −53

Method
What traded today · weight 62%
−46.9 pts
3,499 calls · 12.2%25,216 puts
bias −75.6 × 0.62
What’s on the books · weight 38%
−6.1 pts
57,817 call OI · 42.0%79,818 put OI
bias −16.0 × 0.38
Equals
−53.0
89% of the score comes from today’s volume, 11% from open interest. Disagree with either? See the method.
02

What changed: 45 days of tape against price

14d43d90d365d · Reader
tape composite (bars)— price◆ big one-day moves30d: price −0.19% · tape −43.2 · corr -0.30
● peak +31◆ −31.6 in a day▼ low −53.008-2509-0109-0809-1509-2309-3010-0710-09$350$273

Plain English: Over 30 days, price has fallen 0.19% while the tape has faded 43.2 points. They agree.

03

Should you trust it?

pass
Plenty behind it
confidence 79 (96th pct) · quality 90 · 28,715 contracts
pass
Stable
0.81 vs 7-day rolling · choppiness 21
pass
This kind of read has paid
strongly bearish · put-heavy · mid liquidity → −0.37% avg, n=3,867
note
Tape is confirming, not predicting
price has led LRCX’s tape by 2 days (r=-0.22, n=44)
note
Stretched vs its own history
today’s tape sits low relative to price
pass
Our record on LRCX is good
63% hit rate on 641 closed calls · payoff 0.99×
04

Where the positions sit

calls tradedstrikeputs traded
$342.5
$340
$337.5
$335
$332.5
$330
$327.5
$325
$322.5
$320
$317.5
$315
$312.5
$310
$307.5
$305
$302.5
$300
$297.5
Spot $319.70 highlighted. The $230 strike holds the most open interest (the “wall”, 10,668). Near-dated expiry in the mix, so OI is noisier.
05

Our record on LRCX

Proof
63%
hit rate · 641 closed
0.99×
payoff
+1.21%
avg return
9 Oct · 4h
$319.70 → $319.70
+0.00%flat
9 Oct · 4h
$325.00 → $319.70
−1.63%hit
9 Oct · 4h
$320.59 → $319.70
−0.28%hit
9 Oct · 4h
$320.59 → $319.70
−0.28%hit

One rule everywhere: a move of 0.05% or less is flat, and flat is not a hit. That is the same rule Proof uses; 143 of these 641 calls were flat.

06

Catalysts & context

EPS surprise · last 4 quarters
+1.09%Q3 ’25
+6.41%Q4 ’25
+4.93%Q1 ’26
+5.99%Q2 ’26
Street Buy-leaningNext report — P/E 59.56 · fwd 31.43Beta 1.967 52w $131.02–$438.50IV rank —
Lam Research Corp · Semiconductors
Strongly bearish, well evidenced. It’s confirming price rather than calling it.
−100 bearish0bullish +100
−53.0┆ −29.5 ydayevidence 79
Why it’s −53
−46.9 volume · 12% calls−6.1 OI · 42% calls
45 days · tape bars, price line
◆ −31.608-2509-0109-0809-1509-2309-3010-0710-09$350$273
Price −0.19%, tape −43.2 over 30 days. The two agree.
Should you trust it?
passPlenty behind it
confidence 79 (96th pct) · quality 90 · 28,715 contracts
passStable
0.81 vs 7-day rolling · choppiness 21
noteTape is confirming, not predicting
price has led LRCX’s tape by 2 days (r=-0.22, n=44)
noteStretched vs its own history
today’s tape sits low relative to price
Ask about LRCX
Why did the score drop from +2 to −53 this week?
It moved over several days. The composite was +2.1 on 7 Oct, then fell to −29.5 on 8 Oct as the price moved from $350.42 to $329.51. It’s at −53.0 now.

Today’s −53.0 breaks down as −46.9 from volume and −6.1 from open interest. I can’t split past days the same way: the stored history keeps call/put volume but not open interest for past days.
tape_history · 45 ptsstock_scores · 15:49method · 62/38
Ask
Explain the $230 wallCompare LRCX vs INTCAlert me before earnings