California Water Service Group (CWT) Options Chain
NYSE: CWTUtilitiesWater SupplyUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Oct 16, 2026
- Days to expiration
- 7
- Share price
- $45.94
- Put/call ratio (OI)
- 0.17
- Put/call ratio (volume)
- 1.00
- ATM implied volatility
- 115.4%
- Expected move
- ±$7.34
- Open interest (C / P)
- 30 / 5
CWT options summary
The CWT options chain for the October 16, 2026 expiration lists 1 call and 3 put contracts, with 7 days until expiration. Open interest stands at 30 calls and 5 puts, a put/call ratio of 0.17, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $45.00 strike is 115.4%, which implies the market expects a move of about ±$7.34 (16.0%) in California Water Service Group stock by expiration.
The most open interest sits at the $50.00 call (30 contracts) and the $45.00 put (3 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
CWT options chain · October 16, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| — | — | — | 40.00 | 0.00 | 0.20 | 0.05 | |||||
| — | — | — | 45.00 | 0.00 | 4.90 | 0.80 | |||||
| 0.15 | 0.00 | 3.80 | 50.00 | — | — | — | |||||
| — | — | — | 55.00 | 6.50 | 11.30 | 8.70 | |||||
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 CWT put/call ratio?
For the October 16, 2026 expiration, the CWT put/call ratio based on open interest is 0.17 (5 puts vs 30 calls), and 1.00 based on today's volume. A ratio above 1 means more puts than calls.
What is CWT's implied volatility?
At-the-money implied volatility for CWT options expiring October 16, 2026 is about 115.4%, an annualized estimate of how much the market expects California Water Service Group stock to move.
How many CWT option expiration dates are there?
CWT has 4 listed expiration dates, from Oct 16, 2026 to Mar 19, 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.