SNDK options flow: unusual options activity in Sandisk Corp.
Updated 28 September 2026, 09:54 ET
The 500 most recent unusual options prints in Sandisk Corp. (SNDK), from 24 September 2026 to 28 September 2026, carry $41.7M of tracked premium, close to even between bullish and bearish premium. The delayed tape holds that many at a time, and this name fills it in 3 sessions. Bullish premium was $15.3M against $12.1M bearish; $20.4M went into calls and $21.3M into puts, a put call ratio of 1.04. The largest print was $3.0M of SNDK 19 Feb 2027 $1,800 puts on 24 September 2026, executed at bid. The last session with prints, 28 September 2026, added 22 prints and $1.0M of premium. SNDK closed at $1,777.80 on 25 September 2026, up 1.4%.
The latest unusual flow
The 500 most recent prints, 24 September 2026 to 28 September 2026, 3 sessions. The delayed tape holds that many at a time; the full stream with every print is in the app. Every print is shown twenty minutes after it executed, and the page is rebuilt after each session.
Net premium is bullish minus bearish premium. The put call ratio is put premium divided by call premium, weighted by money rather than by contract count. Sweeps is the share of prints executed across several exchanges at once. Read the guide: Reading the Pulse.
Largest prints
| Date | Contract | Type | Size | Open int. | Premium | Execution | Sentiment | Tier |
|---|---|---|---|---|---|---|---|---|
| 24 Sep 2026 | SNDK 19 Feb 2027 $1,800 puts | Trade | 90 | 69 | $3.0M | At bid | Neutral | Whale |
| 24 Sep 2026 | SNDK 18 Dec 2026 $1,470 puts | Sweep | 100 | 62 | $1.0M | At bid | Neutral | Whale |
| 24 Sep 2026 | SNDK 2 Oct 2026 $1,755 calls | Sweep | 134 | 50 | $953K | At ask | Bullish | Whale |
| 25 Sep 2026 | SNDK 15 Dec 2028 $3,510 puts | Trade | 4 | 27 | $793K | At bid | Bullish | Notable |
| 24 Sep 2026 | SNDK 15 Sep 2028 $2,310 puts | Trade | 6 | 4 | $590K | At midpoint | Neutral | Notable |
| 24 Sep 2026 | SNDK 15 Sep 2028 $2,110 puts | Trade | 6 | 8 | $504K | At midpoint | Neutral | Notable |
| 25 Sep 2026 | SNDK 16 Oct 2026 $1,775 puts | Sweep | 43 | 95 | $475K | At midpoint | Neutral | Notable |
| 24 Sep 2026 | SNDK 30 Oct 2026 $1,615 puts | Trade | 50 | 2 | $471K | At ask | Neutral | Notable |
| 25 Sep 2026 | SNDK 16 Oct 2026 $1,640 puts | Sweep | 75 | 430 | $446K | At bid | Bullish | High conviction |
| 24 Sep 2026 | SNDK 30 Oct 2026 $2,000 puts | Sweep | 14 | 8 | $438K | At ask | Neutral | High conviction |
| 24 Sep 2026 | SNDK 15 Sep 2028 $1,910 puts | Trade | 6 | 2 | $421K | At midpoint | Neutral | Notable |
| 24 Sep 2026 | SNDK 21 Jan 2028 $2,200 puts | Trade | 5 | 355 | $406K | At ask | Bearish | Notable |
Size above open interest means the trade opened a position larger than everything that existed in the contract the night before. Above ask and below bid are the most aggressive executions. Read the guide: Size versus open interest.
Where the money is aimed
| Expiry | Prints | Premium | Calls share | Net premium |
|---|---|---|---|---|
| 25 Sep 2026 | 143 | $8.6M | 73% | +$335K |
| 2 Oct 2026 | 107 | $7.6M | 64% | +$669K |
| 16 Oct 2026 | 41 | $3.6M | 42% | +$523K |
| 19 Feb 2027 | 10 | $3.5M | 12% | +$285K |
| 15 Sep 2028 | 9 | $2.6M | 3% | -$87K |
| 15 Jan 2027 | 33 | $2.5M | 45% | +$283K |
The most premium, $8.6M, is aimed at the 25 Sep 2026 expiry.
A print in a contract expiring this week is a view about the next few days, often about a known event; a print months out is a different kind of statement. Read the guide: 0DTE options flow.
The last session, 28 September 2026
| Date | Contract | Type | Size | Open int. | Premium | Execution | Sentiment | Tier |
|---|---|---|---|---|---|---|---|---|
| 28 Sep 2026 | SNDK 15 Jan 2027 $1,240 calls | Trade | 2 | 12 | $116K | At ask | Bullish | |
| 28 Sep 2026 | SNDK 2 Oct 2026 $1,650 puts | Trade | 20 | 837 | $66K | At bid | Bullish | |
| 28 Sep 2026 | SNDK 2 Oct 2026 $1,715 calls | Trade | 10 | 46 | $64K | At ask | Bullish | |
| 28 Sep 2026 | SNDK 15 Jan 2027 $1,700 calls | Trade | 2 | 949 | $59K | At bid | Bearish | |
| 28 Sep 2026 | SNDK 2 Oct 2026 $1,700 puts | Sweep | 11 | 1,209 | $59K | At bid | Bullish | Notable |
Every print in SNDK with its full detail, the live tape, one tap filters and saved screeners: open SNDK in Options Sentiment Screener.
Price
The live quote and the price chart sit beside the ticker's flow in the app: open SNDK in Options Sentiment Screener.
Analysts
The most recent analyst targets on file, from 14 firms, have a median of $2,275, 28.0% above the last close. The last 90 days brought 1 upgrade.
Calls bought at a strike above the average target are a bet that the analysts are too cautious; puts far below the price in a name they like are protection or a strong disagreement. Read the guide: Reading one ticker's flow.
About Sandisk Corp.
- Exchange
- Nasdaq
- Sector
- Information Technology
- Industry
- Computer Hardware
- Headquarters
- MILPITAS, California
- Website
- shop.sandisk.com
Sandisk delivers innovative Flash solutions and advanced memory technologies that meet people and businesses at the intersection of their aspirations and the moment, enabling them to keep moving and pushing possibility forward. Sandisk Corporation is a wholly owned subsidiary of Western Digital
In the same sector
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Learn
- What unusual options activity means
- Reading one ticker's flow
- Sweeps, blocks and where a trade printed
- Size versus open interest
- Bullish or bearish, how a print's sentiment is inferred
- The conviction score and whale prints
The live tape for SNDK with every print's execution detail, one tap filters for calls, puts, sweeps and 0DTE, saved screeners and, for Realtime subscribers, push alerts and no delay. The same screen is in the iOS and Android apps.
Open SNDK in Options Sentiment Screener