Unusual Options Activity
WAT Unusual Options Activity - Waters
- Last active day
- May 15, 2026
- Active days (30d)
- 1
- Biggest recent print
- Put $380.0000 · $3.9M
AI summary
On May 15, 2026, notable options activity was observed in Waters Corporation (WAT), with a total of two prints recorded. The activity was heavily weighted towards put options, with a total premium of approximately $6.8 million. The largest transaction involved a put option with a strike price of $370, which garnered a premium of about $2.9 million and had a volume-to-open interest ratio of 3.0. This suggests a significant level of activity relative to existing open positions. Additionally, a put option with a strike price of $380 was also prominent, with a premium of approximately $3.9 million and a volume-to-open interest ratio of 2.1. The overall call/put balance indicated a strong preference for puts during this trading session. This activity comes after just one active day in the past 30 days for WAT options, highlighting the unusual nature of these trades.
AI-generated summary
WAT was last active on May 15, 2026.
Prints on May 15, 2026
| Ticker | Side | Strike | Expiry | Vol/OI | Premium | IV | New |
|---|---|---|---|---|---|---|---|
| WAT | Put | $370.0000 | 05/15/26 (1d) | 3.0× | $2.9M | 0% | |
| WAT | Put | $380.0000 | 05/15/26 (1d) | 2.1× | $3.9M | 0% |
History
- 2026-05-152 prints$0K calls$6.8M puts
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