PESI · Perma Fix Environmental Services Inc

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$16.64 +0.96 (+6.12%) At close · Jul 28

Market Cap

$308.91M

18.56M

Options Chain

15-min delayed Underlying $16.64 · at close Jul 28, 2026 Options Calculator

Positioning

Aug 21, 2026 · 23 days to expiry · 24 contracts

Put / call OI

1.07

Balanced positioning

Open interest

1,715

contracts outstanding

Volume

200

traded today

Max pain

$15.00

$1.64 below spot

ATM implied vol

152.2%

market's expected move

Open interest by strike

Calls Puts

2.5

7.5

12.5

17.5

22.5

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 23d Sep 18 51d Dec 18 142d Mar 19 233d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	675.7%	0.975	—		$0.10	—	—	6	6
Call · $2.5 In the money Last — Breakeven — Implied vol 675.7% Delta 0.975 ≈98% ITM Gamma 0.002 Theta -0.036 Vega 0.002 Open interest 0 Model this call Put · $2.5 Last $0.10 Breakeven $2.40 Implied vol — Delta — Gamma — Theta — Vega — Open interest 6 Model this put
0	—	420.5%	0.952	—		$0.10	—	—	2	4
Call · $5 In the money Last — Breakeven — Implied vol 420.5% Delta 0.952 ≈95% ITM Gamma 0.006 Theta -0.039 Vega 0.004 Open interest 0 Model this call Put · $5 Last $0.10 Breakeven $4.90 Implied vol — Delta — Gamma — Theta — Vega — Open interest 4 Model this put
15	15	304.5%	0.921	$8.00		$0.05	-0.023	176%	101	198
Call · $7.5 In the money Last $8.00 Breakeven $15.50 Implied vol 304.5% Delta 0.921 ≈92% ITM Gamma 0.012 Theta -0.041 Vega 0.007 Open interest 15 Model this call Put · $7.5 Last $0.05 Breakeven $7.45 Implied vol 176% Delta -0.023 ≈2% ITM Gamma 0.007 Theta -0.008 Vega 0.003 Open interest 198 Model this put
105	1	212%	0.884	$6.29		$0.35	-0.086	173.5%	1	273
Call · $10 In the money Last $6.29 Breakeven $16.29 Implied vol 212% Delta 0.884 ≈88% ITM Gamma 0.022 Theta -0.038 Vega 0.008 Open interest 105 Model this call Put · $10 Last $0.35 Breakeven $9.65 Implied vol 173.5% Delta -0.086 ≈9% ITM Gamma 0.022 Theta -0.025 Vega 0.006 Open interest 273 Model this put
140	2	176.1%	0.8	$5.10		$0.70	-0.174	144.9%	5	122
Call · $12.5 In the money Last $5.10 Breakeven $17.60 Implied vol 176.1% Delta 0.8 ≈80% ITM Gamma 0.038 Theta -0.045 Vega 0.012 Open interest 140 Model this call Put · $12.5 Last $0.70 Breakeven $11.80 Implied vol 144.9% Delta -0.174 ≈17% ITM Gamma 0.043 Theta -0.033 Vega 0.009 Open interest 122 Model this put
375	2	164.1%	0.667	$2.45		$1.60	-0.325	122.3%	10	274
Call · $15 In the money Last $2.45 Breakeven $17.45 Implied vol 164.1% Delta 0.667 ≈67% ITM Gamma 0.053 Theta -0.054 Vega 0.015 Open interest 375 Model this call Put · $15 Last $1.60 Breakeven $13.40 Implied vol 122.3% Delta -0.325 ≈32% ITM Gamma 0.072 Theta -0.039 Vega 0.016 Open interest 274 Model this put
Underlying $16.64
148	40	144.5%	0.507	$1.95		$2.50	-0.479	159.9%	10	10
Call · $17.5 Last $1.95 Breakeven $19.45 Implied vol 144.5% Delta 0.507 ≈51% ITM Gamma 0.067 Theta -0.052 Vega 0.017 Open interest 148 Model this call Put · $17.5 In the money Last $2.50 Breakeven $15.00 Implied vol 159.9% Delta -0.479 ≈48% ITM Gamma 0.06 Theta -0.056 Vega 0.017 Open interest 10 Model this put
38	3	113.9%	0.296	$0.85		—	-0.669	128.8%	—	0
Call · $20 Last $0.85 Breakeven $20.85 Implied vol 113.9% Delta 0.296 ≈30% ITM Gamma 0.074 Theta -0.036 Vega 0.016 Open interest 38 Model this call Put · $20 In the money Last — Breakeven — Implied vol 128.8% Delta -0.669 ≈67% ITM Gamma 0.068 Theta -0.04 Vega 0.016 Open interest 0 Model this put
6	1	102%	0.14	$0.60		—	-0.761	139.7%	—	0
Call · $22.5 Last $0.60 Breakeven $23.10 Implied vol 102% Delta 0.14 ≈14% ITM Gamma 0.053 Theta -0.02 Vega 0.009 Open interest 6 Model this call Put · $22.5 In the money Last — Breakeven — Implied vol 139.7% Delta -0.761 ≈76% ITM Gamma 0.054 Theta -0.037 Vega 0.013 Open interest 0 Model this put
1	1	149.1%	0.175	$0.90		—	-0.795	162%	—	0
Call · $25 Last $0.90 Breakeven $25.90 Implied vol 149.1% Delta 0.175 ≈18% ITM Gamma 0.042 Theta -0.035 Vega 0.009 Open interest 1 Model this call Put · $25 In the money Last — Breakeven — Implied vol 162% Delta -0.795 ≈79% ITM Gamma 0.043 Theta -0.04 Vega 0.013 Open interest 0 Model this put
0	—	162.5%	0.1	—		—	—	—	—	0
Call · $30 Last — Breakeven — Implied vol 162.5% Delta 0.1 ≈10% ITM Gamma 0.026 Theta -0.026 Vega 0.01 Open interest 0 Model this call Put · $30 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	192.8%	0.095	—		—	-0.943	170.5%	—	0
Call · $35 Last — Breakeven — Implied vol 192.8% Delta 0.095 ≈9% ITM Gamma 0.021 Theta -0.029 Vega 0.006 Open interest 0 Model this call Put · $35 In the money Last — Breakeven — Implied vol 170.5% Delta -0.943 ≈94% ITM Gamma 0.018 Theta -0.016 Vega 0.006 Open interest 0 Model this put

About this data

Greeks, implied volatility, open interest and the last price come from the latest daily snapshot and are 15-minute delayed. Bid and ask are not included on this plan.

In-the-money strikes are tinted, deepening toward the money, and the bar beside each open-interest figure scales to the heaviest strike shown. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.

Key facts CIK 891532 CUSIP 714157203 13F (30d) 10 filings 10 filers Visit website Investor relations