Unusual Options Activity
TWST Unusual Options Activity - Twist Bioscience
- Last active day
- October 7, 2026
- Active days (30d)
- 3
- Biggest recent print
- Put $180.0000 · $2.9M
AI summary
On October 6, 2026, Twist Bioscience Corporation (TWST) experienced notable options activity with a total of five prints. The call premium reached approximately $913,700, while the put premium significantly outpaced it at around $4,213,580. This indicates a heavier focus on put options during this trading session. The most prominent trades included a call option with a strike price of $210 expiring on October 16, 2026, which had a premium of $363,300 and a volume-to-open interest (Vol/OI) ratio of 11.6. Another significant call option was at the $200 strike, also expiring on October 16, with a premium of $488,400 and a Vol/OI ratio of 4.6. On the put side, the $180 strike expiring on November 20, 2026, saw the largest premium of $2,882,480 and a Vol/OI ratio of 2.9. Additionally, a put option at the $190 strike expiring on October 16 had a premium of $1,331,100 and a Vol/OI ratio of 1.6. Overall, the activity reflects a concentrated interest in put options relative to calls.
AI-generated summary
Prints on October 7, 2026
| Ticker | Side | Strike | Expiry | Vol/OI | Premium | IV | New |
|---|---|---|---|---|---|---|---|
| TWST | Call | $210.0000 | 10/16/26 (10d) | 11.6× | $363K | 121% | |
| TWST | Call | $200.0000 | 10/16/26 (10d) | 4.6× | $488K | 105% | |
| TWST | Put | $180.0000 | 11/20/26 (45d) | 2.9× | $2.9M | 96% | |
| TWST | Call | $220.0000 | 10/16/26 (10d) | 3.5× | $62K | 125% | |
| TWST | Put | $190.0000 | 10/16/26 (10d) | 1.6× | $1.3M | 101% |
History
- 2026-10-075 prints$914K calls$4.2M puts
- 2026-10-065 prints$914K calls$4.2M puts
- 2026-10-051 prints$0K calls$384K puts
- 2026-08-031 prints$0K calls$310K puts
- 2026-07-311 prints$0K calls$310K puts
- 2026-04-152 prints$783K calls$0K puts
Related tickers