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DUOL$143.00 —+ Alert
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● 20 Oct · US closed · scored 03:56
● Tue 20 Oct 2026/US closed · opens 14:30 BST/409 names scored today/last score 06:22 BSTResearch, not advice · every call is published at Proof

DUOL

DUOL
$143.00 · scored 03:56 · fresh
Decision brief
BULLISH · 64/100
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 64/100
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
+32.4 composite
Evidence
64 / 100 · top 14% today
2,128 contracts · quality 78 · stability 0.00
hasn’t paid −0.02% · n=74,862
01

Why it’s +32

Method
What traded today · weight 62%
+21.9 pts
1,439 calls · 67.6%689 puts
bias +35.2 × 0.62
What’s on the books · weight 38%
+10.5 pts
44,456 call OI · 63.9%25,148 put OI
bias +27.7 × 0.38
Equals
+32.4
67% of the score comes from today’s volume, 33% 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 DUOL 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 64 (86th pct) · quality 78 · 2,128 contracts
note
Jumpy
0.00 vs 7-day rolling · choppiness 21
against
This kind of read hasn’t paid
strongly bullish · call-heavy · low liquidity → −0.02% avg, n=74,862
note
Too few of our calls checked
0 closed calls on DUOL
04

Where the positions sit

calls tradedstrikeputs traded
$152.5
$150
$149
$148
$147
$146
$145
$144
$143
$142
$141
$140
$139
$138
$137
$136
$135
$134
$133
Spot $143.00 highlighted. The $100 strike holds the most open interest (the “wall”, 6,947). Near-dated expiry in the mix, so OI is noisier.
05

Our record on DUOL

Proof
We haven’t checked a call on DUOL 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 —
DUOL
Strongly bullish, moderately evidenced.
−100 bearish0bullish +100
+32.4evidence 64
hasn’t paid −0.02% · n=74,862
Why it’s +32
+21.9 volume · 68% calls+10.5 OI · 64% 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 64 (86th pct) · quality 78 · 2,128 contracts
noteJumpy
0.00 vs 7-day rolling · choppiness 21
againstThis kind of read hasn’t paid
strongly bullish · call-heavy · low liquidity → −0.02% avg, n=74,862
noteToo few of our calls checked
0 closed calls on DUOL
Ask about DUOL
Not enough tape history on DUOL for a weekly brief yet. Ask anything below.
Ask
Explain the $100 wallAlert me before earnings