MIRM · Mirum Pharmaceuticals, Inc.

Track MIRM — free

$100.64 +1.87 (+1.89%) At close · Aug 14

Market Cap

$6.53B

64.93M

Options Chain

Underlying $100.64 · at close Aug 14, 2026 Options Calculator

Positioning

Aug 21, 2026 · 5 days to expiry · 50 contracts · mixed snapshot sessions · Jul 2, 2026–Aug 14, 2026; 29 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 Oct 16 61d 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	—	219.9%	0.992	—		$0.05	-0.029	287.3%	10	11
Call · $55 In the money Snapshot session Unknown Last — Breakeven — Implied vol 219.9% Delta 0.992 ≈99% ITM Gamma 0.001 Theta -0.059 Vega 0.002 Open interest 0 Model this call Put · $55 Snapshot session Jul 31, 2026 Last $0.05 Breakeven $54.95 Implied vol 287.3% Delta -0.029 ≈3% ITM Gamma 0.002 Theta -0.214 Vega 0.009 Open interest 11 Model this put
0	—	190.9%	0.991	—		—	-0.031	245.9%	—	0
Call · $60 In the money Snapshot session Unknown Last — Breakeven — Implied vol 190.9% Delta 0.991 ≈99% ITM Gamma 0.001 Theta -0.057 Vega 0.005 Open interest 0 Model this call Put · $60 Snapshot session Unknown Last — Breakeven — Implied vol 245.9% Delta -0.031 ≈3% ITM Gamma 0.002 Theta -0.192 Vega 0.01 Open interest 0 Model this put
0	—	162.6%	0.99	—		—	-0.036	212.8%	—	0
Call · $65 In the money Snapshot session Unknown Last — Breakeven — Implied vol 162.6% Delta 0.99 ≈99% ITM Gamma 0.001 Theta -0.055 Vega 0.005 Open interest 0 Model this call Put · $65 Snapshot session Unknown Last — Breakeven — Implied vol 212.8% Delta -0.036 ≈4% ITM Gamma 0.003 Theta -0.186 Vega 0.01 Open interest 0 Model this put
0	—	—	—	—		—	-0.041	182.3%	—	0
Call · $70 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $70 Snapshot session Unknown Last — Breakeven — Implied vol 182.3% Delta -0.041 ≈4% ITM Gamma 0.004 Theta -0.181 Vega 0.01 Open interest 0 Model this put
0	—	—	—	—		—	-0.056	163%	—	0
Call · $75 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $75 Snapshot session Unknown Last — Breakeven — Implied vol 163% Delta -0.056 ≈6% ITM Gamma 0.006 Theta -0.208 Vega 0.019 Open interest 0 Model this put
0	—	0.1%	1	—		—	-0.143	197.1%	—	0
Call · $80 In the money Snapshot session Unknown Last — Breakeven — Implied vol 0.1% Delta 1 ≈100% ITM Gamma 0 Theta -0.008 Vega 0 Open interest 0 Model this call Put · $80 Snapshot session Unknown Last — Breakeven — Implied vol 197.1% Delta -0.143 ≈14% ITM Gamma 0.009 Theta -0.498 Vega 0.029 Open interest 0 Model this put
0	—	—	—	—		$0.70	-0.075	100.1%	3	3
Call · $85 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $85 Snapshot session Aug 6, 2026 Last $0.70 Breakeven $84.30 Implied vol 100.1% Delta -0.075 ≈8% ITM Gamma 0.011 Theta -0.158 Vega 0.02 Open interest 3 Model this put
3	2	48.1%	0.974	$7.70		$1.20	-0.089	69.6%	26	11
Call · $90 In the money Snapshot session Aug 14, 2026 Last $7.70 Breakeven $97.70 Implied vol 48.1% Delta 0.974 ≈97% ITM Gamma 0.01 Theta -0.041 Vega 0.006 Open interest 3 Model this call Put · $90 Snapshot session Aug 6, 2026 Last $1.20 Breakeven $88.80 Implied vol 69.6% Delta -0.089 ≈9% ITM Gamma 0.019 Theta -0.124 Vega 0.021 Open interest 11 Model this put
0	—	43.2%	0.871	—		$0.40	-0.203	59.5%	5	5
Call · $95 In the money Snapshot session Unknown Last — Breakeven — Implied vol 43.2% Delta 0.871 ≈87% ITM Gamma 0.04 Theta -0.111 Vega 0.032 Open interest 0 Model this call Put · $95 Snapshot session Aug 7, 2026 Last $0.40 Breakeven $94.60 Implied vol 59.5% Delta -0.203 ≈20% ITM Gamma 0.039 Theta -0.188 Vega 0.032 Open interest 5 Model this put
2	3	15.8%	0.644	$1.00		$9.33	-0.448	57%	3	3
Call · $100 In the money Snapshot session Aug 13, 2026 Last $1.00 Breakeven $101.00 Implied vol 15.8% Delta 0.644 ≈64% ITM Gamma 0.194 Theta -0.073 Vega 0.049 Open interest 2 Model this call Put · $100 Snapshot session Aug 6, 2026 Last $9.33 Breakeven $90.67 Implied vol 57% Delta -0.448 ≈45% ITM Gamma 0.057 Theta -0.25 Vega 0.049 Open interest 3 Model this put
Underlying $100.64
23	20	69.5%	0.329	$0.40		$12.02	-0.774	44.2%	1	19
Call · $105 Snapshot session Aug 6, 2026 Last $0.40 Breakeven $105.40 Implied vol 69.5% Delta 0.329 ≈33% ITM Gamma 0.042 Theta -0.286 Vega 0.044 Open interest 23 Model this call Put · $105 In the money Snapshot session Aug 6, 2026 Last $12.02 Breakeven $92.98 Implied vol 44.2% Delta -0.774 ≈77% ITM Gamma 0.056 Theta -0.144 Vega 0.034 Open interest 19 Model this put
20	3	59.1%	0.12	$0.39		$6.28	-0.935	47.9%	12	15
Call · $110 Snapshot session Aug 6, 2026 Last $0.39 Breakeven $110.39 Implied vol 59.1% Delta 0.12 ≈12% ITM Gamma 0.027 Theta -0.133 Vega 0.023 Open interest 20 Model this call Put · $110 In the money Snapshot session Jul 29, 2026 Last $6.28 Breakeven $103.72 Implied vol 47.9% Delta -0.935 ≈93% ITM Gamma 0.023 Theta -0.063 Vega 0.013 Open interest 15 Model this put
14	1	118.1%	0.202	$2.39		$5.71	—	—	2	2
Call · $115 Snapshot session Aug 3, 2026 Last $2.39 Breakeven $117.39 Implied vol 118.1% Delta 0.202 ≈20% ITM Gamma 0.019 Theta -0.375 Vega 0.035 Open interest 14 Model this call Put · $115 In the money Snapshot session Jul 20, 2026 Last $5.71 Breakeven $109.29 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 Model this put
2	1	138%	0.171	$5.00		$7.27	—	—	3	2
Call · $120 Snapshot session Jul 24, 2026 Last $5.00 Breakeven $125.00 Implied vol 138% Delta 0.171 ≈17% ITM Gamma 0.015 Theta -0.396 Vega 0.036 Open interest 2 Model this call Put · $120 In the money Snapshot session Jul 10, 2026 Last $7.27 Breakeven $112.73 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 Model this put
6	4	137.2%	0.117	$0.75		$8.55	—	—	1	0
Call · $125 Snapshot session Aug 3, 2026 Last $0.75 Breakeven $125.75 Implied vol 137.2% Delta 0.117 ≈12% ITM Gamma 0.012 Theta -0.302 Vega 0.024 Open interest 6 Model this call Put · $125 In the money Snapshot session Jul 2, 2026 Last $8.55 Breakeven $116.45 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
77	1	139.6%	0.078	$2.25		—	-0.986	96.4%	—	0
Call · $130 Snapshot session Jul 21, 2026 Last $2.25 Breakeven $132.25 Implied vol 139.6% Delta 0.078 ≈8% ITM Gamma 0.009 Theta -0.231 Vega 0.014 Open interest 77 Model this call Put · $130 In the money Snapshot session Unknown Last — Breakeven — Implied vol 96.4% Delta -0.986 ≈99% ITM Gamma 0.004 Theta -0.034 Vega 0.006 Open interest 0 Model this put
73	3	163.3%	0.084	$3.83		—	-0.971	123.7%	—	0
Call · $135 Snapshot session Jul 8, 2026 Last $3.83 Breakeven $138.83 Implied vol 163.3% Delta 0.084 ≈8% ITM Gamma 0.008 Theta -0.286 Vega 0.025 Open interest 73 Model this call Put · $135 In the money Snapshot session Unknown Last — Breakeven — Implied vol 123.7% Delta -0.971 ≈97% ITM Gamma 0.005 Theta -0.085 Vega 0.007 Open interest 0 Model this put
6	2	167.2%	0.067	$3.80		—	-0.973	135.7%	—	0
Call · $140 Snapshot session Jul 7, 2026 Last $3.80 Breakeven $143.80 Implied vol 167.2% Delta 0.067 ≈7% ITM Gamma 0.006 Theta -0.243 Vega 0.015 Open interest 6 Model this call Put · $140 In the money Snapshot session Unknown Last — Breakeven — Implied vol 135.7% Delta -0.973 ≈97% ITM Gamma 0.004 Theta -0.087 Vega 0.007 Open interest 0 Model this put
30	4	173.7%	0.055	$0.48		—	-0.981	140.4%	—	0
Call · $145 Snapshot session Aug 5, 2026 Last $0.48 Breakeven $145.48 Implied vol 173.7% Delta 0.055 ≈5% ITM Gamma 0.005 Theta -0.215 Vega 0.015 Open interest 30 Model this call Put · $145 In the money Snapshot session Unknown Last — Breakeven — Implied vol 140.4% Delta -0.981 ≈98% ITM Gamma 0.003 Theta -0.065 Vega 0.007 Open interest 0 Model this put
0	—	183.2%	0.048	—		—	-0.982	151.7%	—	0
Call · $150 Snapshot session Unknown Last — Breakeven — Implied vol 183.2% Delta 0.048 ≈5% ITM Gamma 0.004 Theta -0.204 Vega 0.015 Open interest 0 Model this call Put · $150 In the money Snapshot session Unknown Last — Breakeven — Implied vol 151.7% Delta -0.982 ≈98% ITM Gamma 0.003 Theta -0.067 Vega 0.007 Open interest 0 Model this put
0	—	202%	0.053	—		—	-0.977	169.4%	—	0
Call · $155 Snapshot session Unknown Last — Breakeven — Implied vol 202% Delta 0.053 ≈5% ITM Gamma 0.004 Theta -0.243 Vega 0.016 Open interest 0 Model this call Put · $155 In the money Snapshot session Unknown Last — Breakeven — Implied vol 169.4% Delta -0.977 ≈98% ITM Gamma 0.003 Theta -0.093 Vega 0.008 Open interest 0 Model this put
0	—	210.8%	0.047	—		—	-0.984	173.1%	—	0
Call · $160 Snapshot session Unknown Last — Breakeven — Implied vol 210.8% Delta 0.047 ≈5% ITM Gamma 0.004 Theta -0.232 Vega 0.016 Open interest 0 Model this call Put · $160 In the money Snapshot session Unknown Last — Breakeven — Implied vol 173.1% Delta -0.984 ≈98% ITM Gamma 0.002 Theta -0.07 Vega 0.007 Open interest 0 Model this put
0	—	219.3%	0.042	—		—	-0.985	183.3%	—	0
Call · $165 Snapshot session Unknown Last — Breakeven — Implied vol 219.3% Delta 0.042 ≈4% ITM Gamma 0.003 Theta -0.221 Vega 0.016 Open interest 0 Model this call Put · $165 In the money Snapshot session Unknown Last — Breakeven — Implied vol 183.3% Delta -0.985 ≈98% ITM Gamma 0.002 Theta -0.072 Vega 0.007 Open interest 0 Model this put
0	—	236.7%	0.047	—		—	-0.985	192.9%	—	0
Call · $170 Snapshot session Unknown Last — Breakeven — Implied vol 236.7% Delta 0.047 ≈5% ITM Gamma 0.003 Theta -0.261 Vega 0.016 Open interest 0 Model this call Put · $170 In the money Snapshot session Unknown Last — Breakeven — Implied vol 192.9% Delta -0.985 ≈99% ITM Gamma 0.002 Theta -0.073 Vega 0.003 Open interest 0 Model this put
0	—	—	—	—		—	-0.981	209.5%	—	0
Call · $175 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $175 In the money Snapshot session Unknown Last — Breakeven — Implied vol 209.5% Delta -0.981 ≈98% ITM Gamma 0.002 Theta -0.101 Vega 0.008 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 2, 2026–Aug 14, 2026; 29 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 1759425 CUSIP 604749101 13F (30d) 318 filings 312 filers Visit website Investor relations