Unusual Options Activity
ZS Unusual Options Activity - Zscaler
- Last active day
- August 21, 2026
- Active days (30d)
- 18
- Biggest recent print
- Put $175.0000 · $1.1M
AI summary
On August 21, 2026, Zscaler, Inc. (ZS) experienced notable options activity with a total of four prints. The call premium amounted to approximately $790,750, while the put premium was significantly higher at around $1,086,954. Over the past 30 days, ZS has seen activity on 18 days. The largest print was for a call option with a strike price of $230, expiring on December 18, 2026, which had a premium of $648,420 and a volume-to-open interest ratio of 4.2. The most substantial put option was at a strike price of $175, expiring on September 18, 2026, with a premium of $1,086,954 and a volume-to-open interest ratio of 2.6. Additional call options included a $182.50 strike expiring the same day with a premium of $27,580 and a volume-to-open interest ratio of 3.5, as well as a $190 strike expiring on August 28, 2026, with a premium of $114,750 and a volume-to-open interest ratio of 1.8.
AI-generated summary
Prints on August 21, 2026
| Ticker | Side | Strike | Expiry | Vol/OI | Premium | IV | New |
|---|---|---|---|---|---|---|---|
| ZS | Call | $230.0000 | 12/18/26 (120d) | 4.2× | $648K | 62% | |
| ZS | Put | $175.0000 | 09/18/26 (27d) | 2.6× | $1.1M | 76% | |
| ZS | Call | $182.5000 | 08/21/26 (1d) | 3.5× | $28K | 58% | |
| ZS | Call | $190.0000 | 08/28/26 (6d) | 1.8× | $115K | 55% |
History
- 2026-08-214 prints$791K calls$1.1M puts
- 2026-08-202 prints$676K calls$0K puts
- 2026-08-172 prints$0K calls$1.6M puts
- 2026-08-142 prints$0K calls$1.6M puts
- 2026-08-112 prints$669K calls$0K puts
- 2026-08-103 prints$669K calls$436K puts
- 2026-08-072 prints$66K calls$436K puts
- 2026-08-061 prints$575K calls$0K puts
- 2026-08-054 prints$2.8M calls$0K puts
- 2026-08-044 prints$2.5M calls$0K puts
- 2026-08-032 prints$304K calls$0K puts
- 2026-07-311 prints$105K calls$0K puts
- 2026-07-303 prints$799K calls$0K puts
- 2026-07-294 prints$772K calls$1.2M puts
- 2026-07-282 prints$0K calls$1.2M puts
- 2026-07-241 prints$74K calls$0K puts
- 2026-07-232 prints$302K calls$0K puts
- 2026-07-223 prints$979K calls$0K puts
- 2026-07-211 prints$696K calls$0K puts
- 2026-07-201 prints$267K calls$0K puts
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