Perma-Fix Environmental Services, Inc. (PESI) 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.
Perma-Fix Environmental Services, Inc. (PESI) operates in the Industrials sector, specifically the Waste Management industry, with a market capitalization near $180.1M, listed on NASDAQ, employing roughly 293 people, carrying a beta of 0.61 to the broader market. Perma-Fix Environmental Services, Inc. Led by Mark J. Duff, public since 1992-12-08.
Snapshot as of May 15, 2026.
- Spot Price
- $9.75
- Call OI
- 12.9K
- Put OI
- 2.5K
- Total OI
- 15.4K
- Put/Call Ratio
- 0.03
As of May 15, 2026, Perma-Fix Environmental Services, Inc. (PESI) has 15.4K total contracts outstanding across all expirations. Put/call OI ratio is 0.19 (call-heavy 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 PESI open interest history Data Feeds Strategy Selection
Strategy selection on Perma-Fix Environmental Services, Inc. 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 69.1% 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 PESI open interest history questions
- What is the current PESI options open interest?
- As of May 15, 2026, Perma-Fix Environmental Services, Inc. (PESI) has 15.4K total contracts outstanding across all listed expirations, split as 12.9K calls and 2.5K 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 PESI put/call open interest ratio?
- Put/call OI ratio of 0.19 is call-heavy, often a directional bullish or upside-speculation signal.
- What does PESI 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.