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SNDK$1,722.63 +0.00%+ Alert
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● 10 Oct · US closed · scored 09:03
● 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

SNDK

Sandisk Corp
$1,722.63 · +0.00% vs $1,722.63 close · scored 09:03 · stale
Decision brief
BULLISH · 76/100
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 76/100
For the read
options volume favours calls · evidence confidence is high
Against / uncertainty
signal stability is low
The read
Mildly bullish, well evidenced, and the tape has led price here.
−100 bearish0bullish +100
+16.6 composite+0.0 vs a week ago
Evidence
76 / 100 · top 6% today
220,207 contracts · quality 84 · stability 0.00
01

Why it’s +17

Method
What traded today · weight 62%
+17.6 pts
141,440 calls · 64.2%78,767 puts
bias +28.5 × 0.62
What’s on the books · weight 38%
−1.1 pts
122,060 call OI · 48.6%129,088 put OI
bias −2.8 × 0.38
Equals
+16.6
94% of the score comes from today’s volume, 6% from open interest. Disagree with either? See the method.
02

What changed: 46 days of tape against price

14d43d90d365d · Reader
tape composite (bars)— price◆ big one-day moves30d: price −1.16% · tape +3.6 · corr 0.23
● peak +26◆ −27.5 in a day▼ low −9.008-2408-3109-0709-1409-2109-2810-0510-10$1,898$1,481

Plain English: Over 30 days, price has fallen 1.16% while the tape has barely moved (+3.6). The two are drifting apart.

03

Should you trust it?

pass
Plenty behind it
confidence 76 (94th pct) · quality 84 · 220,207 contracts
note
Jumpy
0.00 vs 7-day rolling · choppiness 47
pass
This kind of read has paid
mildly bullish · call-heavy · high liquidity → +1.05% avg, n=9,329
pass
Tape has led price
tape has led SNDK’s price by 1 day (r=0.35, n=45)
note
Stretched vs its own history
today’s tape sits high relative to price
against
Our record on SNDK is poor
31% hit rate on 1078 closed calls · payoff 1.86×
04

Where the positions sit

No per-strike chain is stored for this name yet, so we can’t show where the positions sit. The totals above still come from today’s chain.
Spot $1,722.63. The $2,000 strike holds the most open interest (the “wall”, 10,882). Near-dated expiry in the mix, so OI is noisier.
05

Our record on SNDK

Proof
31%
hit rate · 1078 closed
1.86×
payoff
+0.70%
avg return
2 Oct · 4h
$1,722.63 → $1,722.63
+0.00%flat
2 Oct · 4h
$1,797.50 → $1,797.50
+0.00%flat
2 Oct · 4h
$1,782.00 → $1,782.00
+0.00%flat
1 Oct · 4h
$1,718.98 → $1,718.98
+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; 529 of these 1078 calls were flat.

06

Catalysts & context

EPS surprise · last 4 quarters
+27.84%Q3 ’25
+76.28%Q4 ’25
+57.88%Q1 ’26
+11.70%Q2 ’26
Street Buy-leaningNext report — P/E 22.03 · fwd 8.43Beta 3.647 52w $115.68–$2,354.39IV rank —
Sandisk Corp · Technology
Mildly bullish, well evidenced. The tape has led price here.
−100 bearish0bullish +100
+16.6evidence 76
Why it’s +17
+17.6 volume · 64% calls−1.1 OI · 49% calls
46 days · tape bars, price line
◆ −27.508-2408-3109-0709-1409-2109-2810-0510-10$1,898$1,481
Price −1.16%, tape +3.6 over 30 days. The two are drifting apart.
Should you trust it?
passPlenty behind it
confidence 76 (94th pct) · quality 84 · 220,207 contracts
noteJumpy
0.00 vs 7-day rolling · choppiness 47
noteStretched vs its own history
today’s tape sits high relative to price
againstOur record on SNDK is poor
31% hit rate on 1078 closed calls · payoff 1.86×
Ask about SNDK
What is behind today’s +16.6?
The composite has held within 2.1 points of +16.6 across the last 8 sessions.

Today’s +16.6 breaks down as +17.6 from volume and −1.1 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 · 46 ptsstock_scores · 09:03method · 62/38
Ask
Explain the $2000 wallCompare SNDK vs ORCLAlert me before earnings