SanDisk SNDK
$835.06 +$28.63 (+3.55%)
Market closed · Nov 6, 9:40 pm ET · Last extended-hours $841.46 +0.77%
Open$898.27
Prev close$806.43
Day range$816.42 – $912.09
Volume17.76M
Market cap$118.82B
P/E (TTM)6.6
Dividend yield–
Average implied volatility across the listed chain right now: 127%. Implied volatility measures how big a price swing the options market is pricing in — there is no fixed “normal” level, it varies a lot by stock.
Open interest by strike
Nearest listed expiry only. Calls above the line, puts below — clusters mark strikes where the market has built up the most open positions.
Implied volatility by strike
The “volatility smile”: strikes far from the current price often price in richer implied volatility than at-the-money strikes.
Calls
| Expiry | Strike | Last | Bid/Ask | Volume | Open interest | IV |
|---|---|---|---|---|---|---|
| 13 Nov 2026 | $835.00 | $55.10 | $52.40/$55.30 | 332 | 32 | 124% |
| 13 Nov 2026 | $840.00 | $52.00 | $48.50/$52.40 | 403 | 137 | 121% |
| 13 Nov 2026 | $830.00 | $56.74 | $55.00/$57.10 | 462 | 78 | 123% |
| 13 Nov 2026 | $845.00 | $48.90 | $47.10/$50.20 | 317 | 16 | 122% |
| 13 Nov 2026 | $825.00 | $59.30 | $57.40/$60.60 | 203 | 20 | 124% |
| 13 Nov 2026 | $850.00 | $46.29 | $45.00/$47.00 | 892 | 329 | 121% |
| 13 Nov 2026 | $820.00 | $60.55 | $60.50/$63.30 | 308 | 24 | 125% |
| 13 Nov 2026 | $855.00 | $44.71 | $42.70/$45.30 | 126 | 39 | 122% |
| 13 Nov 2026 | $815.00 | $66.09 | $61.60/$66.40 | 31 | 1 | 123% |
| 13 Nov 2026 | $860.00 | $41.85 | $39.80/$43.10 | 337 | 115 | 120% |
| 13 Nov 2026 | $810.00 | $66.60 | $64.40/$72.10 | 12 | 15 | 127% |
| 13 Nov 2026 | $865.00 | $40.41 | $37.90/$41.10 | 159 | 11 | 121% |
| 13 Nov 2026 | $805.00 | $68.67 | $67.10/$72.50 | 10 | 38 | 124% |
| 13 Nov 2026 | $870.00 | $38.00 | $36.30/$39.10 | 326 | 43 | 121% |
| 13 Nov 2026 | $800.00 | $74.00 | $68.90/$75.50 | 100 | 200 | 122% |
Puts
| Expiry | Strike | Last | Bid/Ask | Volume | Open interest | IV |
|---|---|---|---|---|---|---|
| 13 Nov 2026 | $835.00 | $52.63 | $51.00/$53.90 | 411 | 26 | 131% |
| 13 Nov 2026 | $840.00 | $54.90 | $53.80/$56.30 | 739 | 202 | 131% |
| 13 Nov 2026 | $830.00 | $50.46 | $49.10/$51.30 | 1,215 | 119 | 132% |
| 13 Nov 2026 | $845.00 | $56.00 | $56.60/$59.10 | 276 | 155 | 131% |
| 13 Nov 2026 | $825.00 | $47.60 | $46.80/$51.30 | 535 | 63 | 135% |
| 13 Nov 2026 | $850.00 | $60.61 | $59.50/$62.30 | 995 | 300 | 132% |
| 13 Nov 2026 | $820.00 | $45.40 | $44.80/$46.90 | 788 | 814 | 133% |
| 13 Nov 2026 | $855.00 | $64.10 | $59.10/$65.50 | 218 | 34 | 128% |
| 13 Nov 2026 | $815.00 | $43.41 | $42.20/$44.90 | 309 | 36 | 133% |
| 13 Nov 2026 | $860.00 | $62.30 | $64.40/$67.40 | 458 | 165 | 130% |
| 13 Nov 2026 | $810.00 | $42.50 | $40.40/$43.80 | 365 | 129 | 135% |
| 13 Nov 2026 | $865.00 | $67.00 | $67.00/$71.80 | 109 | 38 | 131% |
| 13 Nov 2026 | $805.00 | $40.00 | $38.10/$41.50 | 469 | 51 | 135% |
| 13 Nov 2026 | $870.00 | $72.60 | $67.20/$75.30 | 591 | 425 | 128% |
| 13 Nov 2026 | $800.00 | $37.65 | $37.20/$38.80 | 1,771 | 246 | 136% |
Open interest = contracts currently outstanding (not yet closed out). Higher open interest generally means a strike/expiry is more actively traded and easier to get in and out of.
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