Unusual Options Activity
CLSK Unusual Options Activity - CleanSpark
- Last active day
- August 21, 2026
- Active days (30d)
- 23
- Biggest recent print
- Call $12.5000 · $490K
AI summary
On August 21, 2026, CleanSpark, Inc. (CLSK) experienced notable options activity with a total of 15 prints. The call premium reached approximately $2.37 million, significantly outpacing the put premium of around $689,922, indicating a stronger interest in calls. Over the past 30 days, CLSK has seen activity on 23 days. Among the top prints, the most significant was a call option with a strike price of $15.00 expiring on November 20, 2026, which recorded a premium of $405,566 and a volume-to-open interest ratio of 13.9. Other notable call options included a $12.50 strike expiring on August 28, 2026, with a premium of $264,250 and a volume-to-open interest ratio of 5.7, and a $20.00 strike call with a premium of $160,176 and a volume-to-open interest ratio of 22.6. The only put option of note was a $12.00 strike expiring on August 28, 2026, with a premium of $228,855 and a volume-to-open interest ratio of 4.8.
AI-generated summary
Prints on August 21, 2026
| Ticker | Side | Strike | Expiry | Vol/OI | Premium | IV | New |
|---|---|---|---|---|---|---|---|
| CLSK | Call | $20.0000 | 11/20/26 (90d) | 22.6× | $160K | 89% | |
| CLSK | Call | $15.0000 | 11/20/26 (90d) | 13.9× | $406K | 88% | |
| CLSK | Call | $12.5000 | 08/28/26 (6d) | 5.7× | $264K | 95% | |
| CLSK | Call | $13.5000 | 08/28/26 (6d) | 6.4× | $52K | 97% | |
| CLSK | Call | $12.0000 | 10/16/26 (55d) | 5.1× | $151K | 89% | |
| CLSK | Put | $12.0000 | 08/28/26 (6d) | 4.8× | $229K | 93% | |
| CLSK | Call | $11.5000 | 08/28/26 (6d) | 4.3× | $145K | 105% | |
| CLSK | Call | $15.0000 | 10/16/26 (55d) | 3.2× | $402K | 88% | |
| CLSK | Call | $12.5000 | 09/04/26 (15d) | 2.9× | $129K | 91% | |
| CLSK | Call | $12.5000 | 08/21/26 (1d) | 2.2× | $490K | 100% | |
| CLSK | Put | $12.5000 | 08/21/26 (0d) | 2.0× | $111K | 83% | |
| CLSK | Call | $13.5000 | 09/04/26 (15d) | 2.0× | $98K | 90% | |
| CLSK | Call | $12.0000 | 08/21/26 (0d) | 2.0× | $47K | 30% | |
| CLSK | Put | $16.0000 | 08/21/26 (1d) | 1.5× | $350K | 453% | |
| CLSK | Call | $13.0000 | 09/04/26 (13d) | 1.7× | $27K | 94% |
History
- 2026-08-2115 prints$2.4M calls$690K puts
- 2026-08-2010 prints$1.1M calls$389K puts
- 2026-08-197 prints$2.0M calls$232K puts
- 2026-08-183 prints$1.9M calls$193K puts
- 2026-08-173 prints$346K calls$0K puts
- 2026-08-145 prints$278K calls$421K puts
- 2026-08-132 prints$0K calls$421K puts
- 2026-08-121 prints$27K calls$0K puts
- 2026-08-115 prints$932K calls$42K puts
- 2026-08-108 prints$1.3M calls$81K puts
- 2026-08-0712 prints$943K calls$633K puts
- 2026-08-068 prints$476K calls$452K puts
- 2026-08-053 prints$362K calls$397K puts
- 2026-08-041 prints$362K calls$0K puts
- 2026-08-036 prints$470K calls$183K puts
- 2026-07-3111 prints$1.7M calls$253K puts
- 2026-07-3010 prints$1.6M calls$437K puts
- 2026-07-297 prints$1.3M calls$389K puts
- 2026-07-286 prints$1.1M calls$1.0M puts
- 2026-07-278 prints$835K calls$226K puts
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