Waters (WAT) Options Chain
NYSE: WATIndustrialsBiotechnology: Laboratory Analytical InstrumentsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- May 21, 2027
- Days to expiration
- 223
- Share price
- $433.77
- Put/call ratio (OI)
- 0.21
- Put/call ratio (volume)
- 0.00
- Expected move
- ±$121.94
- Open interest (C / P)
- 14 / 3
WAT options summary
The WAT options chain for the May 21, 2027 expiration lists 6 call and 2 put contracts, with 223 days until expiration. Open interest stands at 14 calls and 3 puts, a put/call ratio of 0.21, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $440.00 strike is 36.0%, which implies the market expects a move of about ±$121.94 (28.1%) in Waters stock by expiration.
The most open interest sits at the $380.00 call (4 contracts) and the $440.00 put (2 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
WAT options chain · May 21, 2027
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 80.90 | 79.90 | 87.00 | 380.00 | — | — | — | |||||
| — | — | — | 390.00 | 19.20 | 26.40 | 23.50 | |||||
| 45.96 | 42.80 | 51.00 | 440.00 | 38.90 | 47.00 | 43.52 | |||||
| 41.55 | 38.20 | 46.00 | 450.00 | — | — | — | |||||
| 29.80 | 25.80 | 34.00 | 480.00 | — | — | — | |||||
| 6.30 | 1.05 | 9.50 | 600.00 | — | — | — | |||||
| 4.40 | 0.05 | 8.70 | 620.00 | — | — | — | |||||
In-the-money callsIn-the-money puts. IV = implied volatility, OI = open interest (contracts). Each contract covers 100 shares. Quotes delayed at least 15 minutes.
Frequently asked questions
What is the WAT put/call ratio?
For the May 21, 2027 expiration, the WAT put/call ratio based on open interest is 0.21 (3 puts vs 14 calls), and 0.00 based on today's volume. A ratio above 1 means more puts than calls.
What is WAT's implied volatility?
At-the-money implied volatility for WAT options expiring May 21, 2027 is about 36.0%, an annualized estimate of how much the market expects Waters stock to move.
How many WAT option expiration dates are there?
WAT has 5 listed expiration dates, from Oct 16, 2026 to May 21, 2027.
What does "in the money" mean?
A call is in the money when the strike price is below the current share price; a put is in the money when the strike is above it. In-the-money contracts have intrinsic value and are shaded in the table.