GFL · GFL Environmental Inc.

Track GFL — free

$41.95 +0.30 (+0.71%) At close · Aug 14

Market Cap

$15.03B

360.89M

Options Chain

Underlying $41.95 · today Options Calculator

Positioning

Aug 21, 2026 · 6 days to expiry · 20 contracts · mixed snapshot sessions · Jul 8, 2026–Aug 14, 2026; 10 unknown

Put / call OI

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dated and unknown snapshot sessions

Open interest

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dated and unknown snapshot sessions

Volume

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dated and unknown snapshot sessions

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 6d Sep 18 34d Oct 16 62d Dec 18 125d Jan 15 153d Mar 19 216d Apr 16 244d Dec 17 489d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	319.9%	0.972	—		—	—	—	—	0
Call · $20 In the money Snapshot session Unknown Last — Breakeven — Implied vol 319.9% Delta 0.972 ≈97% ITM Gamma 0.003 Theta -0.087 Vega 0.004 Open interest 0 Model this call Put · $20 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	206.1%	0.992	—		—	—	—	—	0
Call · $22.5 In the money Snapshot session Unknown Last — Breakeven — Implied vol 206.1% Delta 0.992 ≈99% ITM Gamma 0.002 Theta -0.022 Vega 0.001 Open interest 0 Model this call Put · $22.5 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	172.6%	0.991	—		—	—	—	—	0
Call · $25 In the money Snapshot session Unknown Last — Breakeven — Implied vol 172.6% Delta 0.991 ≈99% ITM Gamma 0.003 Theta -0.02 Vega 0.002 Open interest 0 Model this call Put · $25 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
4	1	164.4%	0.947	$11.11		$0.05	-0.077	188.1%	2	10k
Call · $30 In the money Snapshot session Aug 12, 2026 Last $11.11 Breakeven $41.11 Implied vol 164.4% Delta 0.947 ≈95% ITM Gamma 0.012 Theta -0.078 Vega 0.005 Open interest 4 Model this call Put · $30 Snapshot session Jul 8, 2026 Last $0.05 Breakeven $29.95 Implied vol 188.1% Delta -0.077 ≈8% ITM Gamma 0.013 Theta -0.113 Vega 0.008 Open interest 10k Model this put
33	1	65.2%	0.981	$5.71		$0.05	-0.048	82.2%	1	14.3k
Call · $35 In the money Snapshot session Jul 29, 2026 Last $5.71 Breakeven $40.71 Implied vol 65.2% Delta 0.981 ≈98% ITM Gamma 0.012 Theta -0.016 Vega 0.003 Open interest 33 Model this call Put · $35 Snapshot session Aug 12, 2026 Last $0.05 Breakeven $34.95 Implied vol 82.2% Delta -0.048 ≈5% ITM Gamma 0.021 Theta -0.034 Vega 0.005 Open interest 14.3k Model this put
2.1k	1	59.7%	0.73	$2.55		$0.45	-0.274	61%	21	529
Call · $40 In the money Snapshot session Aug 14, 2026 Last $2.55 Breakeven $42.55 Implied vol 59.7% Delta 0.73 ≈73% ITM Gamma 0.097 Theta -0.086 Vega 0.019 Open interest 2.1k Model this call Put · $40 Snapshot session Aug 14, 2026 Last $0.45 Breakeven $39.55 Implied vol 61% Delta -0.274 ≈27% ITM Gamma 0.096 Theta -0.084 Vega 0.019 Open interest 529 Model this put
Underlying $41.95
11k	22	52.6%	0.172	$0.33		$4.57	-0.849	49.3%	10	9
Call · $45 Snapshot session Aug 13, 2026 Last $0.33 Breakeven $45.33 Implied vol 52.6% Delta 0.172 ≈17% ITM Gamma 0.085 Theta -0.057 Vega 0.016 Open interest 11k Model this call Put · $45 In the money Snapshot session Jul 30, 2026 Last $4.57 Breakeven $40.43 Implied vol 49.3% Delta -0.849 ≈85% ITM Gamma 0.085 Theta -0.046 Vega 0.016 Open interest 9 Model this put
10.2k	1	81.4%	0.063	$0.05		—	-0.962	72.7%	—	0
Call · $50 Snapshot session Aug 11, 2026 Last $0.05 Breakeven $50.05 Implied vol 81.4% Delta 0.063 ≈6% ITM Gamma 0.027 Theta -0.043 Vega 0.006 Open interest 10.2k Model this call Put · $50 In the money Snapshot session Unknown Last — Breakeven — Implied vol 72.7% Delta -0.962 ≈96% ITM Gamma 0.022 Theta -0.023 Vega 0.006 Open interest 0 Model this put
13	13	105%	0.033	$0.05		—	-0.972	103.1%	—	0
Call · $55 Snapshot session Jul 29, 2026 Last $0.05 Breakeven $55.05 Implied vol 105% Delta 0.033 ≈3% ITM Gamma 0.012 Theta -0.032 Vega 0.003 Open interest 13 Model this call Put · $55 In the money Snapshot session Unknown Last — Breakeven — Implied vol 103.1% Delta -0.972 ≈97% ITM Gamma 0.012 Theta -0.026 Vega 0.003 Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $60 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $60 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put

About this data

Each contract's last price, volume, greeks, implied volatility and open interest belongs to the snapshot session shown in its details; unknown means the provider omitted the timestamp. This chain has mixed snapshot sessions · Jul 8, 2026–Aug 14, 2026; 10 unknown. Cross-contract positioning totals are shown only when every returned row has the same known session. 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.

Key facts CIK 1780232 CUSIP 36168Q104 13F (30d) 217 filings 215 filers Visit website Investor relations