Unusual Options Activity
CABA Unusual Options Activity - Cabaletta Bio
- Last active day
- September 21, 2026
- Active days (30d)
- 2
- Biggest recent print
- Put $2.5000 · $26K
AI summary
On September 21, 2026, unusual options activity was observed in Cabaletta Bio, Inc. (CABA), with a notable print involving a put option. A put option with a strike price of $2.50 and an expiration date of January 15, 2027, was traded, generating a premium of $26,190. This transaction is significant, particularly given that it occurred on one of only two active days in the past 30 days for CABA options. The volume-to-open interest (Vol/OI) ratio for this put option stands at 2.0, indicating a relatively active trading environment compared to existing open positions. Overall, this activity suggests a focus on downside protection or bearish sentiment among traders regarding CABA's stock performance in the near term.
AI-generated summary
CABA was last active on September 21, 2026.
Prints on September 21, 2026
| Ticker | Side | Strike | Expiry | Vol/OI | Premium | IV | New |
|---|---|---|---|---|---|---|---|
| CABA | Put | $2.5000 | 01/15/27 (118d) | 2.0× | $26K | 77% |
History
- 2026-09-211 prints$0K calls$26K puts
- 2026-09-181 prints$0K calls$26K puts
- 2026-08-191 prints$0K calls$190K puts
- 2026-08-182 prints$95K calls$190K puts
- 2026-08-172 prints$95K calls$133K puts
- 2026-07-311 prints$0K calls$143K puts
- 2026-07-301 prints$0K calls$143K puts
- 2026-07-291 prints$0K calls$253K puts
- 2026-07-281 prints$0K calls$253K puts
- 2026-05-052 prints$97K calls$0K puts
- 2026-05-041 prints$123K calls$0K puts
- 2026-04-241 prints$0K calls$26K puts
- 2026-02-261 prints$61K calls$0K puts
- 2026-02-201 prints$194K calls$0K puts
Related tickers