STOK · Stoke Therapeutics, Inc.

Track STOK — free

$32.32 +0.92 (+2.93%) At close · Aug 21

Market Cap

$1.99B

64.53M

Options Chain

Underlying $32.32 · today Options Calculator

Positioning

Sep 18, 2026 · 27 days to expiry · 16 contracts · mixed snapshot sessions · Aug 7, 2026–Aug 21, 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

—

dated and unknown snapshot sessions

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Sep 18 27d Oct 16 55d Nov 20 90d Feb 19 181d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	153.8%	0.98	—		—	—	—	—	0
Call · $15 In the money Snapshot session Unknown Last — Breakeven — Implied vol 153.8% Delta 0.98 ≈98% ITM Gamma 0.004 Theta -0.013 Vega 0.006 Open interest 0 Model this call Put · $15 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
23	23	217.8%	0.908	$14.13		—	-0.056	163.7%	—	0
Call · $17.5 In the money Snapshot session Aug 20, 2026 Last $14.13 Breakeven $31.63 Implied vol 217.8% Delta 0.908 ≈91% ITM Gamma 0.009 Theta -0.06 Vega 0.017 Open interest 23 Model this call Put · $17.5 Snapshot session Unknown Last — Breakeven — Implied vol 163.7% Delta -0.056 ≈6% ITM Gamma 0.008 Theta -0.029 Vega 0.011 Open interest 0 Model this put
6	6	106%	0.964	$13.20		—	-0.068	133.7%	—	0
Call · $20 In the money Snapshot session Aug 10, 2026 Last $13.20 Breakeven $33.20 Implied vol 106% Delta 0.964 ≈96% ITM Gamma 0.008 Theta -0.015 Vega 0.007 Open interest 6 Model this call Put · $20 Snapshot session Unknown Last — Breakeven — Implied vol 133.7% Delta -0.068 ≈7% ITM Gamma 0.011 Theta -0.028 Vega 0.012 Open interest 0 Model this put
0	—	83.2%	0.956	—		—	-0.084	107.4%	—	0
Call · $22.5 In the money Snapshot session Unknown Last — Breakeven — Implied vol 83.2% Delta 0.956 ≈96% ITM Gamma 0.013 Theta -0.015 Vega 0.007 Open interest 0 Model this call Put · $22.5 Snapshot session Unknown Last — Breakeven — Implied vol 107.4% Delta -0.084 ≈8% ITM Gamma 0.016 Theta -0.026 Vega 0.013 Open interest 0 Model this put
0	—	63%	0.945	—		—	-0.113	86.7%	—	0
Call · $25 In the money Snapshot session Unknown Last — Breakeven — Implied vol 63% Delta 0.945 ≈95% ITM Gamma 0.02 Theta -0.014 Vega 0.008 Open interest 0 Model this call Put · $25 Snapshot session Unknown Last — Breakeven — Implied vol 86.7% Delta -0.113 ≈11% ITM Gamma 0.025 Theta -0.027 Vega 0.02 Open interest 0 Model this put
1	1	58%	0.711	$3.70		$1.15	-0.283	55.3%	1	15
Call · $30 In the money Snapshot session Aug 7, 2026 Last $3.70 Breakeven $33.70 Implied vol 58% Delta 0.711 ≈71% ITM Gamma 0.067 Theta -0.034 Vega 0.029 Open interest 1 Model this call Put · $30 Snapshot session Aug 21, 2026 Last $1.15 Breakeven $28.85 Implied vol 55.3% Delta -0.283 ≈28% ITM Gamma 0.07 Theta -0.029 Vega 0.029 Open interest 15 Model this put
Underlying $32.32
6	22	52.6%	0.322	$0.85		—	-0.652	60.3%	—	0
Call · $35 Snapshot session Aug 21, 2026 Last $0.85 Breakeven $35.85 Implied vol 52.6% Delta 0.322 ≈32% ITM Gamma 0.077 Theta -0.031 Vega 0.032 Open interest 6 Model this call Put · $35 In the money Snapshot session Unknown Last — Breakeven — Implied vol 60.3% Delta -0.652 ≈65% ITM Gamma 0.07 Theta -0.034 Vega 0.032 Open interest 0 Model this put
0	—	89.5%	0.232	—		$9.00	-0.758	93.4%	42	41
Call · $40 Snapshot session Unknown Last — Breakeven — Implied vol 89.5% Delta 0.232 ≈23% ITM Gamma 0.039 Theta -0.045 Vega 0.026 Open interest 0 Model this call Put · $40 In the money Snapshot session Aug 20, 2026 Last $9.00 Breakeven $31.00 Implied vol 93.4% Delta -0.758 ≈76% ITM Gamma 0.038 Theta -0.045 Vega 0.026 Open interest 41 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 · Aug 7, 2026–Aug 21, 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 1623526 CUSIP 86150R107 13F (30d) 188 filings 184 filers Visit website Investor relations