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BIIB$228.90 —+ Alert
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● 14 Oct · US extended hours · scored 07:06
● Wed 14 Oct 2026/US extended hours · opens 14:30 BST/248 names scored today/last score 09:26 BSTResearch, not advice · every call is published at Proof

BIIB

BIIB
$228.90 · scored 07:06 · fresh
Decision brief
BULLISH · 61/100
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 61/100
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.
−100 bearish0bullish +100
+29.1 composite
Evidence
61 / 100 · top 28% today
778 contracts · quality 76 · stability 0.00
hasn’t paid −0.01% · n=80,022
01

Why it’s +29

Method
What traded today · weight 62%
+21.0 pts
521 calls · 67.0%257 puts
bias +33.9 × 0.62
What’s on the books · weight 38%
+8.0 pts
5,298 call OI · 60.6%3,447 put OI
bias +21.2 × 0.38
Equals
+29.1
72% of the score comes from today’s volume, 28% from open interest. Disagree with either? See the method.
02

What changed: 1 days of tape against price

14d43d90d365d · Reader
tape composite (bars)— price◆ big one-day moves
NO HISTORY YET

We started scoring BIIB today.

There’s one reading so far. The 14-day chart fills in as the hourly tape arrives. Nothing here is back-filled or guessed.

03

Should you trust it?

note
Some evidence, not a lot
confidence 61 (72th pct) · quality 76 · 778 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 → −0.01% avg, n=80,022
note
Too few of our calls checked
0 closed calls on BIIB
04

Where the positions sit

calls tradedstrikeputs traded
$252.5
$250
$247.5
$245
$242.5
$240
$237.5
$235
$232.5
$230
$227.5
$225
$222.5
$220
$217.5
$215
$212.5
$210
$207.5
Spot $228.90 highlighted. The $190 strike holds the most open interest (the “wall”, 989). Near-dated expiry in the mix, so OI is noisier.
05

Our record on BIIB

Proof
We haven’t checked a call on BIIB yet. Each read is checked 4 hours, 1 day and 3 days after it’s made.
06

Catalysts & context

EPS surprise · last 4 quarters
No reported quarters stored yet.
Street —Next report — P/E —Beta — 52w —IV rank —
BIIB
Strongly bullish, moderately evidenced.
−100 bearish0bullish +100
+29.1evidence 61
hasn’t paid −0.01% · n=80,022
Why it’s +29
+21.0 volume · 67% calls+8.0 OI · 61% calls
1 days · tape bars, price line
Not enough tape history to draw this yet.
Should you trust it?
noteSome evidence, not a lot
confidence 61 (72th pct) · quality 76 · 778 contracts
noteJumpy
0.00 vs 7-day rolling · choppiness 0
againstThis kind of read hasn’t paid
strongly bullish · call-heavy · low liquidity → −0.01% avg, n=80,022
noteToo few of our calls checked
0 closed calls on BIIB
Ask about BIIB
Not enough tape history on BIIB for a weekly brief yet. Ask anything below.
Ask
Explain the $190 wallAlert me before earnings