California Water Service Group (CWT) Open Interest History
Open interest tracks the total number of outstanding options contracts. Rising OI alongside price moves can indicate growing commitment to the trend; declining OI suggests positions are being closed.
California Water Service Group (CWT) operates in the Utilities sector, specifically the Regulated Water industry, with a market capitalization near $2.59B, listed on NYSE, employing roughly 1,278 people, carrying a beta of 0.50 to the broader market. California Water Service Group, through its subsidiaries, provides water utility and other related services in California, Washington, New Mexico, Hawaii, and Texas. Led by Martin A. Kropelnicki, public since 1990-03-26.
Snapshot as of May 15, 2026.
- Spot Price
- $42.73
- Call OI
- 148
- Put OI
- 137
- Total OI
- 285
As of May 15, 2026, California Water Service Group (CWT) has 285 total contracts outstanding across all expirations. Put/call OI ratio is 0.93 (balanced positioning). Open interest reflects accumulated positions from prior sessions; persistent growth indicates sustained directional or hedging interest, while sharp drops typically mean post-expiration clean-up.
How CWT open interest history Data Feeds Strategy Selection
Strategy selection on California Water Service Group options does not derive from any single metric in isolation. The open interest history view above sits inside a broader read: ATM IV currently sits at 41.1% and dealer gamma exposure is positive, so dealer hedging is mechanically mean-reverting. Combine the open interest history data here with the volatility-skew surface, dealer-gamma exposure, max-pain level, and upcoming-events calendar to build a positioning thesis. Risk-defined structures (credit spreads, debit spreads, iron condors) are usually safer than naked positions while the regime is uncertain; the data on this page anchors the inputs but does not by itself constitute a trade thesis.
Learn how open interest is reported and how to read the data →
Frequently asked CWT open interest history questions
- What is the current CWT options open interest?
- As of May 15, 2026, California Water Service Group (CWT) has 285 total contracts outstanding across all listed expirations, split as 148 calls and 137 puts. Open interest reflects accumulated positions from prior trading sessions; it does not include today's volume until end-of-day reconciliation.
- What is the CWT put/call open interest ratio?
- Put/call OI ratio of 0.93 is balanced.
- What does CWT open interest tell traders?
- Persistent OI growth indicates sustained directional or hedging interest; sharp drops typically mean post-expiration position cleanup. Heavy OI concentrations at specific strikes act as support and resistance levels because dealer hedging amplifies near those strikes - the gamma profile of the dealer book is concentrated there. Comparing today's volume to standing OI separates opening flow from closing flow.