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GFS$47.01 —+ Alert
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● 21 Oct · US extended hours · scored 01:48
● Wed 21 Oct 2026/US extended hours · opens 14:30 BST/398 names scored today/last score 10:32 BSTResearch, not advice · every call is published at Proof

GFS

GFS
$47.01 · scored 01:48 · stale
Decision brief
BULLISH · 67/100
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 67/100
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
+49.7 composite
Evidence
67 / 100 · top 8% today
1,999 contracts · quality 74 · stability 0.00
hasn’t paid −0.01% · n=73,379
01

Why it’s +50

Method
What traded today · weight 62%
+40.7 pts
1,656 calls · 82.8%343 puts
bias +65.7 × 0.62
What’s on the books · weight 38%
+9.0 pts
31,169 call OI · 61.9%19,223 put OI
bias +23.7 × 0.38
Equals
+49.7
82% of the score comes from today’s volume, 18% 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 GFS 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 67 (92th pct) · quality 74 · 1,999 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=73,379
note
Too few of our calls checked
1 closed call on GFS
04

Where the positions sit

calls tradedstrikeputs traded
$100
$95
$90
$85
$80
$75
$70
$65
$60
$55
WALL · OI 8,105
$50
$45
$40
$35
$30
$25
$22.5
$20
$17.5
Spot $47.01 highlighted. The $55 strike holds the most open interest (the “wall”, 8,105).
05

Our record on GFS

Proof
0%
hit rate · 1 closed
—
payoff
+0.00%
avg return
21 Oct · 4h
$47.01 → $47.01
+0.00%flat

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; 1 of these 1 calls were flat.

06

Catalysts & context

EPS surprise · last 4 quarters
No reported quarters stored yet.
Street —Next report — P/E —Beta — 52w —IV rank —
GFS
Strongly bullish, moderately evidenced.
−100 bearish0bullish +100
+49.7evidence 67
hasn’t paid −0.01% · n=73,379
Why it’s +50
+40.7 volume · 83% calls+9.0 OI · 62% 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 67 (92th pct) · quality 74 · 1,999 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=73,379
noteToo few of our calls checked
1 closed call on GFS
Ask about GFS
Not enough tape history on GFS for a weekly brief yet. Ask anything below.
Ask
Explain the $55 wallAlert me before earnings