Sandisk Corp. options tape
Read from CBOE's delayed chain on 23 September 2026, with Sandisk Corp. at $1,898.59: open interest within 90 days was 165,564 call and 194,839 put contracts, a put/call ratio of 1.18; the day's volume was 152,261 calls and 84,800 puts (0.56). The most call open interest sits at the $2,000.00 strike (8,580 contracts) and the most put open interest at $1,000.00 (6,609). The at-the-money straddle for 25 September 2026, 2 days out, was priced at 5.9% of spot. For 16 October 2026, implied volatility was 76.9% at the put 5% below spot and 78.1% at the call 5% above, -1.2 points.
Where the open interest sits
| Side | Strike | Open interest |
|---|---|---|
| Calls | $2,000.00 | 8,580 |
| Puts | $1,000.00 | 6,609 |
The strike with the most open interest on each side, across expiries within 90 days.
Strikes where the day's volume was at least twice the open interest
| Contract | Volume | Open interest before | Premium traded |
|---|---|---|---|
| 25 September 2026 call at $1,900.00 | 11,550 | 1,755 | $57.7 million |
| 25 September 2026 call at $1,600.00 | 1,571 | 531 | $45.4 million |
| 25 September 2026 call at $1,850.00 | 4,109 | 1,220 | $30.8 million |
| 25 September 2026 call at $2,000.00 | 14,919 | 3,675 | $30.7 million |
| 25 September 2026 call at $1,950.00 | 4,958 | 1,365 | $15.9 million |
| 25 September 2026 call at $1,890.00 | 2,865 | 121 | $15.5 million |
| 25 September 2026 put at $1,900.00 | 2,443 | 108 | $15.2 million |
| 25 September 2026 call at $1,880.00 | 2,084 | 138 | $12.3 million |
Volume of at least 200 contracts and at least twice the open interest, with at least $25,000 of premium at the mid; contracts expiring the same day are left out. Premium is mid price times volume times 100.
Open interest built since 22 September 2026
| Contract | Open interest now | Change |
|---|---|---|
| 25 September 2026 call at $2,000.00 | 3,675 | +2,459 |
| 25 September 2026 put at $1,700.00 | 2,037 | +988 |
| 25 September 2026 call at $1,800.00 | 2,631 | +864 |
| 25 September 2026 call at $2,050.00 | 823 | +577 |
| 25 September 2026 call at $2,010.00 | 909 | +540 |
| 25 September 2026 call at $1,950.00 | 1,365 | +538 |
| 16 October 2026 call at $2,000.00 | 2,102 | +527 |
| 25 September 2026 put at $1,650.00 | 1,420 | +478 |
Contracts whose open interest rose by 250 or more against the previous day's snapshot.
Source
CBOE delayed quotes for SNDK, the free 15-minute-delayed chain, read once a day. Figures describe positioning; they are not a forecast.
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