MIAX · Miami International Holdings, Inc.

Track MIAX — free

$43.52 -0.38 (-0.87%) At close · Aug 14

Market Cap

$4.32B

99.23M

Options Chain

Underlying $43.52 · at close Aug 14, 2026 Options Calculator

Positioning

Aug 21, 2026 · 4 days to expiry · 22 contracts · mixed snapshot sessions · Jun 24, 2026–Aug 14, 2026; 9 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 4d Sep 18 32d Oct 16 60d Dec 18 123d Jan 15 151d Jun 17 304d Dec 17 487d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	—	—	—		—	—	—	—	0
Call · $20 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — 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	—	—	—	—		—	—	—	—	0
Call · $22.5 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — 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	—	—	—	—		$0.15	-0.064	369.8%	1	24
Call · $25 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $25 Snapshot session Aug 6, 2026 Last $0.15 Breakeven $24.85 Implied vol 369.8% Delta -0.064 ≈6% ITM Gamma 0.007 Theta -0.241 Vega 0.007 Open interest 24 Model this put
2	5	269.3%	0.914	$8.18		$0.10	-0.05	216.3%	3	31
Call · $30 In the money Snapshot session Jun 24, 2026 Last $8.18 Breakeven $38.18 Implied vol 269.3% Delta 0.914 ≈91% ITM Gamma 0.012 Theta -0.225 Vega 0.007 Open interest 2 Model this call Put · $30 Snapshot session Aug 13, 2026 Last $0.10 Breakeven $29.90 Implied vol 216.3% Delta -0.05 ≈5% ITM Gamma 0.01 Theta -0.117 Vega 0.004 Open interest 31 Model this put
8	2	—	—	$4.84		$0.10	-0.113	174.3%	1	102
Call · $35 In the money Snapshot session Jun 26, 2026 Last $4.84 Breakeven $39.84 Implied vol — Delta — Gamma — Theta — Vega — Open interest 8 Model this call Put · $35 Snapshot session Aug 6, 2026 Last $0.10 Breakeven $34.90 Implied vol 174.3% Delta -0.113 ≈11% ITM Gamma 0.023 Theta -0.177 Vega 0.012 Open interest 102 Model this put
136	10	64.1%	0.885	$4.09		$0.16	-0.216	103.1%	1	52
Call · $40 In the money Snapshot session Aug 13, 2026 Last $4.09 Breakeven $44.09 Implied vol 64.1% Delta 0.885 ≈89% ITM Gamma 0.062 Theta -0.069 Vega 0.008 Open interest 136 Model this call Put · $40 Snapshot session Aug 14, 2026 Last $0.16 Breakeven $39.84 Implied vol 103.1% Delta -0.216 ≈22% ITM Gamma 0.058 Theta -0.16 Vega 0.016 Open interest 52 Model this put
Underlying $43.52
372	29	42.8%	0.257	$0.39		$2.17	-0.718	47.8%	16	59
Call · $45 Snapshot session Aug 14, 2026 Last $0.39 Breakeven $45.39 Implied vol 42.8% Delta 0.257 ≈26% ITM Gamma 0.153 Theta -0.074 Vega 0.018 Open interest 372 Model this call Put · $45 In the money Snapshot session Aug 14, 2026 Last $2.17 Breakeven $42.83 Implied vol 47.8% Delta -0.718 ≈72% ITM Gamma 0.143 Theta -0.082 Vega 0.018 Open interest 59 Model this put
368	7	81.1%	0.071	$0.10		$5.50	-0.947	73.8%	20	2
Call · $50 Snapshot session Aug 13, 2026 Last $0.10 Breakeven $50.10 Implied vol 81.1% Delta 0.071 ≈7% ITM Gamma 0.034 Theta -0.059 Vega 0.006 Open interest 368 Model this call Put · $50 In the money Snapshot session Aug 7, 2026 Last $5.50 Breakeven $44.50 Implied vol 73.8% Delta -0.947 ≈95% ITM Gamma 0.031 Theta -0.038 Vega 0.005 Open interest 2 Model this put
14	5	156.2%	0.112	$0.25		—	—	—	—	0
Call · $55 Snapshot session Jul 29, 2026 Last $0.25 Breakeven $55.25 Implied vol 156.2% Delta 0.112 ≈11% ITM Gamma 0.024 Theta -0.155 Vega 0.01 Open interest 14 Model this call Put · $55 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	185.3%	0.077	—		—	-0.945	166.6%	—	0
Call · $60 Snapshot session Unknown Last — Breakeven — Implied vol 185.3% Delta 0.077 ≈8% ITM Gamma 0.016 Theta -0.142 Vega 0.006 Open interest 0 Model this call Put · $60 In the money Snapshot session Unknown Last — Breakeven — Implied vol 166.6% Delta -0.945 ≈95% ITM Gamma 0.014 Theta -0.092 Vega 0.006 Open interest 0 Model this put
3	3	—	—	$0.05		—	—	—	—	0
Call · $65 Snapshot session Aug 5, 2026 Last $0.05 Breakeven $65.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 Model this call Put · $65 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 · Jun 24, 2026–Aug 14, 2026; 9 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 1438472 CUSIP 59356Q108 13F (30d) 200 filings 197 filers Visit website Investor relations