MRX · Marex Group Ltd

Track MRX — free

$71.06 -1.30 (-1.80%) At close · Aug 14

Market Cap

$4.36B

71.93M

Options Chain

Underlying $71.06 · at close Aug 14, 2026 Options Calculator

Positioning

Aug 21, 2026 · 5 days to expiry · 26 contracts · mixed snapshot sessions · Jun 29, 2026–Aug 14, 2026; 7 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 5d Sep 18 33d Dec 18 124d Jan 15 152d Mar 19 215d Dec 17 488d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	332.1%	0.968	—		$1.44	—	—	1	3
Call · $35 In the money Snapshot session Unknown Last — Breakeven — Implied vol 332.1% Delta 0.968 ≈97% ITM Gamma 0.002 Theta -0.179 Vega 0.006 Open interest 0 Model this call Put · $35 Snapshot session Aug 12, 2026 Last $1.44 Breakeven $33.56 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 Model this put
0	—	303.7%	0.952	—		—	-0.032	263.4%	—	0
Call · $40 In the money Snapshot session Unknown Last — Breakeven — Implied vol 303.7% Delta 0.952 ≈95% ITM Gamma 0.004 Theta -0.233 Vega 0.012 Open interest 0 Model this call Put · $40 Snapshot session Unknown Last — Breakeven — Implied vol 263.4% Delta -0.032 ≈3% ITM Gamma 0.003 Theta -0.144 Vega 0.007 Open interest 0 Model this put
0	—	239.9%	0.948	—		$0.05	-0.043	222.8%	1	1
Call · $45 In the money Snapshot session Unknown Last — Breakeven — Implied vol 239.9% Delta 0.948 ≈95% ITM Gamma 0.005 Theta -0.197 Vega 0.013 Open interest 0 Model this call Put · $45 Snapshot session Aug 11, 2026 Last $0.05 Breakeven $44.95 Implied vol 222.8% Delta -0.043 ≈4% ITM Gamma 0.005 Theta -0.154 Vega 0.007 Open interest 1 Model this put
5	5	132.5%	0.982	$15.28		$0.40	-0.047	170.3%	10	36
Call · $50 In the money Snapshot session Jun 29, 2026 Last $15.28 Breakeven $65.28 Implied vol 132.5% Delta 0.982 ≈98% ITM Gamma 0.004 Theta -0.046 Vega 0.004 Open interest 5 Model this call Put · $50 Snapshot session Aug 13, 2026 Last $0.40 Breakeven $49.60 Implied vol 170.3% Delta -0.047 ≈5% ITM Gamma 0.006 Theta -0.125 Vega 0.008 Open interest 36 Model this put
10	2	139.1%	0.929	$15.49		$0.05	-0.122	184%	6	12
Call · $55 In the money Snapshot session Aug 12, 2026 Last $15.49 Breakeven $70.49 Implied vol 139.1% Delta 0.929 ≈93% ITM Gamma 0.011 Theta -0.145 Vega 0.014 Open interest 10 Model this call Put · $55 Snapshot session Aug 14, 2026 Last $0.05 Breakeven $54.95 Implied vol 184% Delta -0.122 ≈12% ITM Gamma 0.012 Theta -0.283 Vega 0.021 Open interest 12 Model this put
19	23	109.3%	0.887	$10.61		$0.15	-0.069	86.8%	9	29
Call · $60 In the money Snapshot session Aug 12, 2026 Last $10.61 Breakeven $70.61 Implied vol 109.3% Delta 0.887 ≈89% ITM Gamma 0.02 Theta -0.164 Vega 0.015 Open interest 19 Model this call Put · $60 Snapshot session Aug 14, 2026 Last $0.15 Breakeven $59.85 Implied vol 86.8% Delta -0.069 ≈7% ITM Gamma 0.017 Theta -0.087 Vega 0.015 Open interest 29 Model this put
321	10	81.7%	0.789	$5.60		$0.45	-0.127	55.4%	1	76
Call · $65 In the money Snapshot session Aug 14, 2026 Last $5.60 Breakeven $70.60 Implied vol 81.7% Delta 0.789 ≈79% ITM Gamma 0.04 Theta -0.185 Vega 0.023 Open interest 321 Model this call Put · $65 Snapshot session Aug 14, 2026 Last $0.45 Breakeven $64.55 Implied vol 55.4% Delta -0.127 ≈13% ITM Gamma 0.043 Theta -0.088 Vega 0.023 Open interest 76 Model this put
288	29	52%	0.533	$4.50		$0.76	-0.466	43.6%	14	23
Call · $70 In the money Snapshot session Aug 13, 2026 Last $4.50 Breakeven $74.50 Implied vol 52% Delta 0.533 ≈53% ITM Gamma 0.087 Theta -0.16 Vega 0.035 Open interest 288 Model this call Put · $70 Snapshot session Aug 13, 2026 Last $0.76 Breakeven $69.24 Implied vol 43.6% Delta -0.466 ≈47% ITM Gamma 0.103 Theta -0.13 Vega 0.035 Open interest 23 Model this put
Underlying $71.06
78	18	74.5%	0.258	$1.93		$5.00	—	—	2	1
Call · $75 Snapshot session Aug 13, 2026 Last $1.93 Breakeven $76.93 Implied vol 74.5% Delta 0.258 ≈26% ITM Gamma 0.049 Theta -0.185 Vega 0.032 Open interest 78 Model this call Put · $75 In the money Snapshot session Aug 14, 2026 Last $5.00 Breakeven $70.00 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this put
20	25	87.3%	0.132	$0.46		—	—	—	—	0
Call · $80 Snapshot session Aug 13, 2026 Last $0.46 Breakeven $80.46 Implied vol 87.3% Delta 0.132 ≈13% ITM Gamma 0.028 Theta -0.142 Vega 0.017 Open interest 20 Model this call Put · $80 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
2	1	109.1%	0.096	$0.38		—	—	—	—	0
Call · $85 Snapshot session Jul 29, 2026 Last $0.38 Breakeven $85.38 Implied vol 109.1% Delta 0.096 ≈10% ITM Gamma 0.017 Theta -0.14 Vega 0.017 Open interest 2 Model this call Put · $85 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
30	2	110.5%	0.044	$0.05		$16.80	—	—	5	0
Call · $90 Snapshot session Aug 13, 2026 Last $0.05 Breakeven $90.05 Implied vol 110.5% Delta 0.044 ≈4% ITM Gamma 0.009 Theta -0.078 Vega 0.01 Open interest 30 Model this call Put · $90 In the money Snapshot session Aug 13, 2026 Last $16.80 Breakeven $73.20 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		$21.80	—	—	5	0
Call · $95 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $95 In the money Snapshot session Aug 13, 2026 Last $21.80 Breakeven $73.20 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 · Jun 29, 2026–Aug 14, 2026; 7 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 1997464 CUSIP G5T40M104 13F (30d) 219 filings 212 filers Visit website Investor relations