GPCR · Structure Therapeutics Inc. · Options Chain

Track GPCR — free

$41.23 +0.85 (+2.11%) At close · Sep 9

Rebalance outlook locked

Market Cap

$3.17B

71.31M

Options Chain

Underlying $41.23 · at close Sep 9, 2026 Options Calculator

Pull option chains with greeks and open interest through the options chain API or MCP →

Positioning

Sep 18, 2026 · 8 days to expiry · 36 contracts · mixed daily-bar sessions · Jul 29, 2026–Sep 9, 2026; 12 unknown

Put / call OI

0.46

Call-heavy positioning

Open interest

1,914

as of Sep 8, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$45.00

$3.77 above spot

ATM implied vol

56.5%

market's expected move

Open interest by strike

Calls Puts

27.5

32.5

37.5

42.5

47.5

52.5

57.5

62.5

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Sep 18 8d Oct 16 36d Dec 18 99d Jan 15 127d Apr 16 218d Jan 21 498d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
—	—	—	—	$11.60	$15.90	—		—	$0.00	$2.20	—	—	—	—
Call · $27.5 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:58:21.999 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $27.5 Daily-bar session Unknown Quote as of 2026-09-09 13:32:08.483 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
6	20	—	—	$9.40	$13.50	$17.20		$0.05	$0.00	$2.25	—	—	10	10
Call · $30 In the money Daily-bar session Sep 3, 2026 Quote as of 2026-09-09 19:59:50.526 UTC Last $17.20 Breakeven $47.20 Implied vol — Delta — Gamma — Theta — Vega — Open interest 6 OI effective date Sep 8, 2026 Model this call Put · $30 Daily-bar session Sep 8, 2026 Quote as of 2026-09-09 19:58:21.111 UTC Last $0.05 Breakeven $29.95 Implied vol — Delta — Gamma — Theta — Vega — Open interest 10 OI effective date Sep 8, 2026 Model this put
—	—	—	—	$6.90	$11.10	—		$0.05	$0.00	$2.25	—	—	10	10
Call · $32.5 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:59:32.827 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $32.5 Daily-bar session Sep 8, 2026 Quote as of 2026-09-09 19:59:58.201 UTC Last $0.05 Breakeven $32.45 Implied vol — Delta — Gamma — Theta — Vega — Open interest 10 OI effective date Sep 8, 2026 Model this put
—	—	97.1%	0.888	$4.50	$8.70	—		$0.50	$0.05	$0.50	-0.099	91.1%	10	10
Call · $35 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:58:22.709 UTC Last — Breakeven — Implied vol 97.1% Delta 0.888 ≈89% ITM Gamma 0.032 Theta -0.074 Vega 0.012 Open interest — OI effective date — Model this call Put · $35 Daily-bar session Jul 29, 2026 Quote as of 2026-09-09 19:59:53.909 UTC Last $0.50 Breakeven $34.50 Implied vol 91.1% Delta -0.099 ≈10% ITM Gamma 0.031 Theta -0.06 Vega 0.011 Open interest 10 OI effective date Sep 8, 2026 Model this put
—	—	88%	0.788	$2.70	$6.20	—		$0.50	$0.00	$1.45	—	—	3	11
Call · $37.5 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:59:53.638 UTC Last — Breakeven — Implied vol 88% Delta 0.788 ≈79% ITM Gamma 0.054 Theta -0.1 Vega 0.018 Open interest — OI effective date — Model this call Put · $37.5 Daily-bar session Aug 28, 2026 Quote as of 2026-09-09 19:58:21.308 UTC Last $0.50 Breakeven $37.00 Implied vol — Delta — Gamma — Theta — Vega — Open interest 11 OI effective date Sep 8, 2026 Model this put
—	72	46.1%	0.688	$1.00	$2.70	$2.25		$1.25	$0.60	$1.50	-0.358	66.9%	21	24
Call · $40 In the money Daily-bar session Sep 9, 2026 Quote as of 2026-09-09 19:59:58.201 UTC Last $2.25 Breakeven $42.25 Implied vol 46.1% Delta 0.688 ≈69% ITM Gamma 0.126 Theta -0.065 Vega 0.022 Open interest — OI effective date — Model this call Put · $40 Daily-bar session Sep 8, 2026 Quote as of 2026-09-09 19:59:52.986 UTC Last $1.25 Breakeven $38.75 Implied vol 66.9% Delta -0.358 ≈36% ITM Gamma 0.092 Theta -0.094 Vega 0.023 Open interest 24 OI effective date Sep 8, 2026 Model this put
Underlying $41.23
128	29	—	—	$0.00	$2.35	$2.40		$2.50	$1.00	$2.90	-0.641	50%	10	286
Call · $42.5 Daily-bar session Sep 9, 2026 Quote as of 2026-09-09 19:59:59.188 UTC Last $2.40 Breakeven $44.90 Implied vol — Delta — Gamma — Theta — Vega — Open interest 128 OI effective date Sep 8, 2026 Model this call Put · $42.5 In the money Daily-bar session Sep 9, 2026 Quote as of 2026-09-09 19:59:40.077 UTC Last $2.50 Breakeven $40.00 Implied vol 50% Delta -0.641 ≈64% ITM Gamma 0.122 Theta -0.068 Vega 0.023 Open interest 286 OI effective date Sep 8, 2026 Model this put
28	36	—	—	$0.00	$1.00	$1.47		$3.69	$3.10	$4.80	-0.861	52.1%	1	136
Call · $45 Daily-bar session Sep 9, 2026 Quote as of 2026-09-09 19:59:56.057 UTC Last $1.47 Breakeven $46.47 Implied vol — Delta — Gamma — Theta — Vega — Open interest 28 OI effective date Sep 8, 2026 Model this call Put · $45 In the money Daily-bar session Sep 9, 2026 Quote as of 2026-09-09 19:59:48.390 UTC Last $3.69 Breakeven $41.31 Implied vol 52.1% Delta -0.861 ≈86% ITM Gamma 0.07 Theta -0.04 Vega 0.014 Open interest 136 OI effective date Sep 8, 2026 Model this put
38	11	—	—	$0.00	$1.35	$2.00		$4.00	$5.10	$7.00	—	—	50	86
Call · $47.5 Daily-bar session Sep 8, 2026 Quote as of 2026-09-09 19:59:59.191 UTC Last $2.00 Breakeven $49.50 Implied vol — Delta — Gamma — Theta — Vega — Open interest 38 OI effective date Sep 8, 2026 Model this call Put · $47.5 In the money Daily-bar session Sep 8, 2026 Quote as of 2026-09-09 19:59:53.909 UTC Last $4.00 Breakeven $43.50 Implied vol — Delta — Gamma — Theta — Vega — Open interest 86 OI effective date Sep 8, 2026 Model this put
38	7	—	—	$0.00	$0.55	$0.19		$4.40	$7.60	$9.40	—	—	2	18
Call · $50 Daily-bar session Sep 9, 2026 Quote as of 2026-09-09 19:58:26.641 UTC Last $0.19 Breakeven $50.19 Implied vol — Delta — Gamma — Theta — Vega — Open interest 38 OI effective date Sep 8, 2026 Model this call Put · $50 In the money Daily-bar session Sep 8, 2026 Quote as of 2026-09-09 19:59:53.639 UTC Last $4.40 Breakeven $45.60 Implied vol — Delta — Gamma — Theta — Vega — Open interest 18 OI effective date Sep 8, 2026 Model this put
59	3	—	—	$0.00	$0.40	$0.20		$9.50	$10.00	$13.30	—	—	32	14
Call · $52.5 Daily-bar session Sep 9, 2026 Quote as of 2026-09-09 19:59:52.986 UTC Last $0.20 Breakeven $52.70 Implied vol — Delta — Gamma — Theta — Vega — Open interest 59 OI effective date Sep 8, 2026 Model this call Put · $52.5 In the money Daily-bar session Sep 9, 2026 Quote as of 2026-09-09 19:58:21.996 UTC Last $9.50 Breakeven $43.00 Implied vol — Delta — Gamma — Theta — Vega — Open interest 14 OI effective date Sep 8, 2026 Model this put
187	1	—	—	$0.00	$1.95	$0.20		$11.60	$12.50	$14.40	—	—	26	—
Call · $55 Daily-bar session Sep 9, 2026 Quote as of 2026-09-09 19:59:59.173 UTC Last $0.20 Breakeven $55.20 Implied vol — Delta — Gamma — Theta — Vega — Open interest 187 OI effective date Sep 8, 2026 Model this call Put · $55 In the money Daily-bar session Sep 9, 2026 Quote as of 2026-09-09 19:55:12.832 UTC Last $11.60 Breakeven $43.40 Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
248	1	—	—	$0.00	$1.50	$0.28		—	$14.40	$17.00	—	—	—	—
Call · $57.5 Daily-bar session Sep 9, 2026 Quote as of 2026-09-09 19:59:59.202 UTC Last $0.28 Breakeven $57.78 Implied vol — Delta — Gamma — Theta — Vega — Open interest 248 OI effective date Sep 8, 2026 Model this call Put · $57.5 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:55:10.974 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
281	6	—	—	$0.00	$0.50	$0.07		—	$17.30	$20.00	—	—	—	—
Call · $60 Daily-bar session Sep 9, 2026 Quote as of 2026-09-09 19:59:59.192 UTC Last $0.07 Breakeven $60.07 Implied vol — Delta — Gamma — Theta — Vega — Open interest 281 OI effective date Sep 8, 2026 Model this call Put · $60 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:55:10.975 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.05	$2.35	—		—	$19.40	$22.60	—	—	—	—
Call · $62.5 Daily-bar session Unknown Quote as of 2026-09-09 19:59:59.173 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $62.5 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:55:10.978 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
36	3	—	—	$0.00	$0.50	$0.95		—	$21.60	$26.00	—	—	—	—
Call · $65 Daily-bar session Sep 8, 2026 Quote as of 2026-09-09 19:59:59.151 UTC Last $0.95 Breakeven $65.95 Implied vol — Delta — Gamma — Theta — Vega — Open interest 36 OI effective date Sep 8, 2026 Model this call Put · $65 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:59:34.992 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
67	5	—	—	$0.00	$0.55	$0.55		—	$26.90	$30.20	—	—	—	—
Call · $70 Daily-bar session Aug 26, 2026 Quote as of 2026-09-09 19:59:59.147 UTC Last $0.55 Breakeven $70.55 Implied vol — Delta — Gamma — Theta — Vega — Open interest 67 OI effective date Sep 8, 2026 Model this call Put · $70 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:55:10.975 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
193	1	—	—	$0.00	$0.10	$0.20		—	$31.90	$35.10	—	—	—	—
Call · $75 Daily-bar session Sep 9, 2026 Quote as of 2026-09-09 17:15:10.373 UTC Last $0.20 Breakeven $75.20 Implied vol — Delta — Gamma — Theta — Vega — Open interest 193 OI effective date Sep 8, 2026 Model this call Put · $75 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:55:10.975 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put

About this data

Each contract's last price, day range and volume belong to the daily-bar session shown in its details; unknown means the source omitted that timestamp. Open interest has its own effective date shown separately; implied volatility and greeks are model values computed when fetched. This chain has mixed daily-bar sessions · Jul 29, 2026–Sep 9, 2026; 12 unknown. Positioning totals are shown only when every returned open-interest value has the same known effective date. Bid and ask are real-time consolidated OPRA readings.

In-the-money strikes are tinted, deepening toward the money, and the bar beside each open-interest figure scales to the heaviest strike shown. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.

Key facts CIK 1888886 CUSIP 86366E106 13F (30d) 134 filings 134 filers Visit website Investor relations