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RBRK$120.89 +0.56%+ Alert
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● 12 Oct · US open · scored 14:42
● Mon 12 Oct 2026/US open/174 names scored today/last score 17:18 BSTResearch, not advice · every call is published at Proof

RBRK

Rubrik Inc
$120.89 · +0.56% vs $120.22 close · scored 14:42 · stale
Decision brief
BULLISH · 65/100
What changed
No prior comparable read.
Evidence is stale — treat this read cautiously.
What would change the view
composite falls below +15 · confidence deteriorates materially from 65/100
For the read
options volume favours calls · open interest agrees with the read
Against / uncertainty
signal stability is low
The read
Strongly bullish, moderately evidenced, but it’s confirming price rather than calling it.
−100 bearish0bullish +100
+29.6 composite−1.0 vs a week ago
Evidence
65 / 100 · top 24% today
1,856 contracts · quality 77 · stability 0.00
hasn’t paid −0.09% · n=87,750
01

Why it’s +30

Method
What traded today · weight 62%
+17.6 pts
1,191 calls · 64.2%665 puts
bias +28.3 × 0.62
What’s on the books · weight 38%
+12.0 pts
16,150 call OI · 65.8%8,379 put OI
bias +31.7 × 0.38
Equals
+29.6
59% of the score comes from today’s volume, 41% from open interest. Disagree with either? See the method.
02

What changed: 14 days of tape against price

14d43d90d365d · Reader
tape composite (bars)— price◆ big one-day moves30d: price +31.20% · tape −25.4 · corr -0.66
● peak +59▼ low +11.0◆ −44.6 in a day09-2609-2809-3010-0210-0410-0610-0810-09$120$87

Plain English: Over 30 days, price has risen 31.20% while the tape has faded 25.4 points. The two are drifting apart.

03

Should you trust it?

note
Some evidence, not a lot
confidence 65 (76th pct) · quality 77 · 1,856 contracts
note
Jumpy
0.00 vs 7-day rolling · choppiness 0
against
This kind of read hasn’t paid
strongly bullish · call-heavy · low liquidity → −0.09% avg, n=87,750
note
Tape is confirming, not predicting
price has led RBRK’s tape by 1 day (r=-0.39, n=42)
note
Stretched vs its own history
today’s tape sits low relative to price
note
Our record on RBRK is mixed
38% hit rate on 291 closed calls · payoff 2.29×
04

Where the positions sit

calls tradedstrikeputs traded
$130
$129
$128
$127
$126
$125
WALL · OI 1,731
$124
$123
$122
$121
$120
$119
$118
$117
$116
$115
$114
$113
$112
Spot $120.89 highlighted. The $125 strike holds the most open interest (the “wall”, 1,731). Near-dated expiry in the mix, so OI is noisier.
05

Our record on RBRK

Proof
38%
hit rate · 291 closed
2.29×
payoff
+0.95%
avg return
9 Oct · 4h
$120.89 → $120.89
+0.00%flat
9 Oct · 4h
$120.89 → $120.89
+0.00%flat
9 Oct · 4h
$120.89 → $120.89
+0.00%flat
9 Oct · 4h
$120.22 → $120.89
+0.56%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; 138 of these 291 calls were flat.

06

Catalysts & context

EPS surprise · last 4 quarters
+157.80%Q4 ’25
+135.94%Q1 ’26
+598.44%Q2 ’26
+397.51%Q3 ’26
Street Buy-leaningNext report — P/E — · fwd 245.86Beta 1.144 52w $42.25–$127.90IV rank —
Rubrik Inc · Technology
Strongly bullish, moderately evidenced. It’s confirming price rather than calling it.
−100 bearish0bullish +100
+29.6evidence 65
hasn’t paid −0.09% · n=87,750
Why it’s +30
+17.6 volume · 64% calls+12.0 OI · 66% calls
14 days · tape bars, price line
◆ −44.609-2609-2809-3010-0210-0410-0610-0810-09$120$87
Price +31.20%, tape −25.4 over 30 days. The two are drifting apart.
Should you trust it?
noteSome evidence, not a lot
confidence 65 (76th pct) · quality 77 · 1,856 contracts
noteJumpy
0.00 vs 7-day rolling · choppiness 0
againstThis kind of read hasn’t paid
strongly bullish · call-heavy · low liquidity → −0.09% avg, n=87,750
noteTape is confirming, not predicting
price has led RBRK’s tape by 1 day (r=-0.39, n=42)
Ask about RBRK
What is behind today’s +29.6?
The composite has held within 1.0 points of +29.6 across the last 8 sessions.

Today’s +29.6 breaks down as +17.6 from volume and +12.0 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 · 43 ptsstock_scores · 14:42method · 62/38
Ask
Explain the $125 wallCompare RBRK vs ORCLAlert me before earnings