Perma-Fix Environmental Services (PESI) Options Chain
NASDAQ: PESIIndustrialsEnvironmental ServicesUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Oct 16, 2026
- Days to expiration
- 6
- Share price
- $13.76
- Put/call ratio (OI)
- 0.17
- Put/call ratio (volume)
- 1.08
- ATM implied volatility
- 104.5%
- Expected move
- ±$1.84
- Open interest (C / P)
- 5.54K / 964
PESI options summary
The PESI options chain for the October 16, 2026 expiration lists 6 call and 4 put contracts, with 6 days until expiration. Open interest stands at 5,536 calls and 964 puts, a put/call ratio of 0.17, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $15.00 strike is 104.5%, which implies the market expects a move of about ±$1.84 (13.4%) in Perma-Fix Environmental Services stock by expiration.
The most open interest sits at the $20.00 call (4.28K contracts) and the $15.00 put (557 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
PESI options chain · October 16, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| — | — | — | 7.50 | 0.00 | 0.05 | 0.10 | |||||
| 2.90 | 1.05 | 3.50 | 12.50 | 0.00 | 2.15 | 0.22 | |||||
| 0.50 | 0.00 | 0.50 | 15.00 | 0.80 | 1.70 | 1.00 | |||||
| 0.14 | 0.00 | 2.05 | 17.50 | 1.70 | 4.70 | 2.55 | |||||
| 0.10 | 0.00 | 1.50 | 20.00 | — | — | — | |||||
| 0.05 | 0.00 | 2.05 | 22.50 | — | — | — | |||||
| 0.10 | 0.00 | 2.05 | 25.00 | — | — | — | |||||
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 PESI put/call ratio?
For the October 16, 2026 expiration, the PESI put/call ratio based on open interest is 0.17 (964 puts vs 5,536 calls), and 1.08 based on today's volume. A ratio above 1 means more puts than calls.
What is PESI's implied volatility?
At-the-money implied volatility for PESI options expiring October 16, 2026 is about 104.5%, an annualized estimate of how much the market expects Perma-Fix Environmental Services stock to move.
How many PESI option expiration dates are there?
PESI 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.