SMMT · Summit Therapeutics Inc.

Track SMMT — free Ask ALVIS about SMMT

$12.80 +0.25 (+1.99%) At close · Jul 29

Market Cap

$10.01B

797.75M

Options Chain

15-min delayed Underlying $12.80 · at close Jul 29, 2026 Options Calculator

Positioning

Jul 31, 2026 · 1 days to expiry · 92 contracts

Put / call OI

0.27

Call-heavy positioning

Open interest

4,003

contracts outstanding

Volume

3,057

traded today

Max pain

$14.00

$1.20 above spot

ATM implied vol

115%

market's expected move

Open interest by strike · near the money

Calls Puts

9.5

10.5

11.5

12.5

13.5

14.5

15.5

16.5

17.5

18.5

19.5

20.5

21.5

22.5

23.5

24.5

25.5

26.5

27.5

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Jul 31 1d Aug 7 8d Aug 14 15d Aug 21 22d Aug 28 29d Sep 4 36d Sep 18 50d Oct 16 78d Jan 15 169d Jan 21 540d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
28	10	—	—	$9.52		$0.13	—	—	1	21
Call · $3 In the money Last $9.52 Breakeven $12.52 Implied vol — Delta — Gamma — Theta — Vega — Open interest 28 Model this call Put · $3 Last $0.13 Breakeven $2.87 Implied vol — Delta — Gamma — Theta — Vega — Open interest 21 Model this put
23	8	—	—	$8.54		$0.05	—	—	18	28
Call · $4 In the money Last $8.54 Breakeven $12.54 Implied vol — Delta — Gamma — Theta — Vega — Open interest 23 Model this call Put · $4 Last $0.05 Breakeven $3.95 Implied vol — Delta — Gamma — Theta — Vega — Open interest 28 Model this put
5	33	—	—	$7.51		$0.05	—	—	12	39
Call · $5 In the money Last $7.51 Breakeven $12.51 Implied vol — Delta — Gamma — Theta — Vega — Open interest 5 Model this call Put · $5 Last $0.05 Breakeven $4.95 Implied vol — Delta — Gamma — Theta — Vega — Open interest 39 Model this put
35	10	656%	0.974	$6.64		$0.20	—	—	2	16
Call · $6 In the money Last $6.64 Breakeven $12.64 Implied vol 656% Delta 0.974 ≈97% ITM Gamma 0.011 Theta -0.105 Vega 0.001 Open interest 35 Model this call Put · $6 Last $0.20 Breakeven $5.80 Implied vol — Delta — Gamma — Theta — Vega — Open interest 16 Model this put
28	4	—	—	$5.67		$0.07	-0.123	1179.4%	4	12
Call · $7 In the money Last $5.67 Breakeven $12.67 Implied vol — Delta — Gamma — Theta — Vega — Open interest 28 Model this call Put · $7 Last $0.07 Breakeven $6.93 Implied vol 1179.4% Delta -0.123 ≈12% ITM Gamma 0.02 Theta -0.636 Vega 0.002 Open interest 12 Model this put
26	4	—	—	$4.60		$0.20	-0.112	711.9%	1	24
Call · $8 In the money Last $4.60 Breakeven $12.60 Implied vol — Delta — Gamma — Theta — Vega — Open interest 26 Model this call Put · $8 Last $0.20 Breakeven $7.80 Implied vol 711.9% Delta -0.112 ≈11% ITM Gamma 0.031 Theta -0.353 Vega 0.002 Open interest 24 Model this put
12	7	267%	0.98	$3.46		$0.10	-0.137	577.9%	4	8
Call · $9 In the money Last $3.46 Breakeven $12.46 Implied vol 267% Delta 0.98 ≈98% ITM Gamma 0.021 Theta -0.034 Vega 0 Open interest 12 Model this call Put · $9 Last $0.10 Breakeven $8.90 Implied vol 577.9% Delta -0.137 ≈14% ITM Gamma 0.044 Theta -0.331 Vega 0.002 Open interest 8 Model this put
5	1	—	—	$2.96		$0.10	-0.153	516.8%	2	19
Call · $9.5 In the money Last $2.96 Breakeven $12.46 Implied vol — Delta — Gamma — Theta — Vega — Open interest 5 Model this call Put · $9.5 Last $0.10 Breakeven $9.40 Implied vol 516.8% Delta -0.153 ≈15% ITM Gamma 0.053 Theta -0.319 Vega 0.002 Open interest 19 Model this put
11	1	380.9%	0.86	$2.64		$0.10	-0.094	298.9%	12	6
Call · $10 In the money Last $2.64 Breakeven $12.64 Implied vol 380.9% Delta 0.86 ≈86% ITM Gamma 0.068 Theta -0.221 Vega 0.002 Open interest 11 Model this call Put · $10 Last $0.10 Breakeven $9.90 Implied vol 298.9% Delta -0.094 ≈9% ITM Gamma 0.065 Theta -0.13 Vega 0.001 Open interest 6 Model this put
4	1	—	—	$2.05		—	-0.193	402.7%	—	0
Call · $10.5 In the money Last $2.05 Breakeven $12.55 Implied vol — Delta — Gamma — Theta — Vega — Open interest 4 Model this call Put · $10.5 Last — Breakeven — Implied vol 402.7% Delta -0.193 ≈19% ITM Gamma 0.08 Theta -0.292 Vega 0.003 Open interest 0 Model this put
5	3	207.2%	0.876	$3.05		$0.10	-0.128	210.4%	1	33
Call · $11 In the money Last $3.05 Breakeven $14.05 Implied vol 207.2% Delta 0.876 ≈88% ITM Gamma 0.116 Theta -0.113 Vega 0.002 Open interest 5 Model this call Put · $11 Last $0.10 Breakeven $10.90 Implied vol 210.4% Delta -0.128 ≈13% ITM Gamma 0.117 Theta -0.115 Vega 0.002 Open interest 33 Model this put
0	—	288.3%	0.739	—		$0.10	-0.157	164.2%	6	0
Call · $11.5 In the money Last — Breakeven — Implied vol 288.3% Delta 0.739 ≈74% ITM Gamma 0.131 Theta -0.245 Vega 0.003 Open interest 0 Model this call Put · $11.5 Last $0.10 Breakeven $11.40 Implied vol 164.2% Delta -0.157 ≈16% ITM Gamma 0.17 Theta -0.103 Vega 0.002 Open interest 0 Model this put
2	3	145.3%	0.756	$0.85		$0.15	-0.247	147.7%	65	67
Call · $12 In the money Last $0.85 Breakeven $12.85 Implied vol 145.3% Delta 0.756 ≈76% ITM Gamma 0.252 Theta -0.12 Vega 0.003 Open interest 2 Model this call Put · $12 Last $0.15 Breakeven $11.85 Implied vol 147.7% Delta -0.247 ≈25% ITM Gamma 0.25 Theta -0.122 Vega 0.003 Open interest 67 Model this put
12	12	76.1%	0.677	$0.60		$0.20	-0.388	139.1%	10	51
Call · $12.5 In the money Last $0.60 Breakeven $13.10 Implied vol 76.1% Delta 0.677 ≈68% ITM Gamma 0.554 Theta -0.073 Vega 0.003 Open interest 12 Model this call Put · $12.5 Last $0.20 Breakeven $12.30 Implied vol 139.1% Delta -0.388 ≈39% ITM Gamma 0.322 Theta -0.139 Vega 0.003 Open interest 51 Model this put
Underlying $12.80
6	368	99.5%	0.414	$0.25		$0.45	-0.558	130.5%	15	85
Call · $13 Last $0.25 Breakeven $13.25 Implied vol 99.5% Delta 0.414 ≈41% ITM Gamma 0.457 Theta -0.102 Vega 0.003 Open interest 6 Model this call Put · $13 In the money Last $0.45 Breakeven $12.55 Implied vol 130.5% Delta -0.558 ≈56% ITM Gamma 0.353 Theta -0.134 Vega 0.003 Open interest 85 Model this put
16	3	87%	0.185	$0.10		$0.52	-0.639	192.4%	210	212
Call · $13.5 Last $0.10 Breakeven $13.60 Implied vol 87% Delta 0.185 ≈18% ITM Gamma 0.356 Theta -0.061 Vega 0.002 Open interest 16 Model this call Put · $13.5 In the money Last $0.52 Breakeven $12.98 Implied vol 192.4% Delta -0.639 ≈64% ITM Gamma 0.229 Theta -0.189 Vega 0.003 Open interest 212 Model this put
61	10	164.9%	0.223	$0.20		$1.25	-0.851	126.1%	1	67
Call · $14 Last $0.20 Breakeven $14.20 Implied vol 164.9% Delta 0.223 ≈22% ITM Gamma 0.212 Theta -0.129 Vega 0.002 Open interest 61 Model this call Put · $14 In the money Last $1.25 Breakeven $12.75 Implied vol 126.1% Delta -0.851 ≈85% ITM Gamma 0.217 Theta -0.076 Vega 0.002 Open interest 67 Model this put
1.1k	1.1k	178.6%	0.16	$0.10		$1.80	-0.835	181.4%	2	10
Call · $14.5 Last $0.10 Breakeven $14.60 Implied vol 178.6% Delta 0.16 ≈16% ITM Gamma 0.16 Theta -0.114 Vega 0.002 Open interest 1.1k Model this call Put · $14.5 In the money Last $1.80 Breakeven $12.70 Implied vol 181.4% Delta -0.835 ≈83% ITM Gamma 0.16 Theta -0.117 Vega 0.002 Open interest 10 Model this put
192	4	179.7%	0.104	$0.01		$2.50	-0.684	387.7%	4	30
Call · $15 Last $0.01 Breakeven $15.01 Implied vol 179.7% Delta 0.104 ≈10% ITM Gamma 0.117 Theta -0.084 Vega 0.002 Open interest 192 Model this call Put · $15 In the money Last $2.50 Breakeven $12.50 Implied vol 387.7% Delta -0.684 ≈68% ITM Gamma 0.107 Theta -0.359 Vega 0.003 Open interest 30 Model this put
1k	1k	221.4%	0.112	$0.07		$3.10	-0.948	170.3%	2	4
Call · $15.5 Last $0.07 Breakeven $15.57 Implied vol 221.4% Delta 0.112 ≈11% ITM Gamma 0.1 Theta -0.11 Vega 0.002 Open interest 1k Model this call Put · $15.5 In the money Last $3.10 Breakeven $12.40 Implied vol 170.3% Delta -0.948 ≈95% ITM Gamma 0.073 Theta -0.046 Vega 0.001 Open interest 4 Model this put
210	5	291.2%	0.146	$0.03		$3.41	—	—	2	4
Call · $16 Last $0.03 Breakeven $16.03 Implied vol 291.2% Delta 0.146 ≈15% ITM Gamma 0.092 Theta -0.175 Vega 0.002 Open interest 210 Model this call Put · $16 In the money Last $3.41 Breakeven $12.59 Implied vol — Delta — Gamma — Theta — Vega — Open interest 4 Model this put
0	—	460.9%	0.253	—		$4.05	-0.838	347.3%	3	2
Call · $16.5 Last — Breakeven — Implied vol 460.9% Delta 0.253 ≈25% ITM Gamma 0.081 Theta -0.386 Vega 0.003 Open interest 0 Model this call Put · $16.5 In the money Last $4.05 Breakeven $12.45 Implied vol 347.3% Delta -0.838 ≈84% ITM Gamma 0.083 Theta -0.223 Vega 0.003 Open interest 2 Model this put
101	3	517%	0.26	$0.03		$4.17	—	—	2	1
Call · $17 Last $0.03 Breakeven $17.03 Implied vol 517% Delta 0.26 ≈26% ITM Gamma 0.073 Theta -0.44 Vega 0.003 Open interest 101 Model this call Put · $17 In the money Last $4.17 Breakeven $12.83 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this put
0	—	524.3%	0.24	—		$4.75	—	—	7	8
Call · $17.5 Last — Breakeven — Implied vol 524.3% Delta 0.24 ≈24% ITM Gamma 0.069 Theta -0.425 Vega 0.003 Open interest 0 Model this call Put · $17.5 In the money Last $4.75 Breakeven $12.75 Implied vol — Delta — Gamma — Theta — Vega — Open interest 8 Model this put
34	20	412.3%	0.138	$0.25		$5.30	—	—	2	3
Call · $18 Last $0.25 Breakeven $18.25 Implied vol 412.3% Delta 0.138 ≈14% ITM Gamma 0.062 Theta -0.236 Vega 0.002 Open interest 34 Model this call Put · $18 In the money Last $5.30 Breakeven $12.70 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 Model this put
1	1	529%	0.194	$0.10		$5.75	—	—	4	0
Call · $18.5 Last $0.10 Breakeven $18.60 Implied vol 529% Delta 0.194 ≈19% ITM Gamma 0.061 Theta -0.381 Vega 0.003 Open interest 1 Model this call Put · $18.5 In the money Last $5.75 Breakeven $12.75 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	554%	0.189	—		$6.20	—	—	7	3
Call · $19 Last — Breakeven — Implied vol 554% Delta 0.189 ≈19% ITM Gamma 0.057 Theta -0.393 Vega 0.003 Open interest 0 Model this call Put · $19 In the money Last $6.20 Breakeven $12.80 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 Model this put
0	—	—	—	—		$6.83	—	—	2	5
Call · $19.5 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $19.5 In the money Last $6.83 Breakeven $12.67 Implied vol — Delta — Gamma — Theta — Vega — Open interest 5 Model this put
223	1	455%	0.092	$0.10		$7.25	—	—	1	24
Call · $20 Last $0.10 Breakeven $20.10 Implied vol 455% Delta 0.092 ≈9% ITM Gamma 0.042 Theta -0.197 Vega 0.002 Open interest 223 Model this call Put · $20 In the money Last $7.25 Breakeven $12.75 Implied vol — Delta — Gamma — Theta — Vega — Open interest 24 Model this put
0	—	—	—	—		$7.95	—	—	3	3
Call · $20.5 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $20.5 In the money Last $7.95 Breakeven $12.55 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 Model this put
0	—	683%	0.195	—		$8.38	—	—	10	3
Call · $21 Last — Breakeven — Implied vol 683% Delta 0.195 ≈20% ITM Gamma 0.047 Theta -0.496 Vega 0.003 Open interest 0 Model this call Put · $21 In the money Last $8.38 Breakeven $12.62 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 Model this put
0	—	—	—	—		$8.91	—	—	4	0
Call · $21.5 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $21.5 In the money Last $8.91 Breakeven $12.59 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	697.3%	0.177	—		$9.29	—	—	3	0
Call · $22 Last — Breakeven — Implied vol 697.3% Delta 0.177 ≈18% ITM Gamma 0.043 Theta -0.475 Vega 0.002 Open interest 0 Model this call Put · $22 In the money Last $9.29 Breakeven $12.71 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		$9.81	—	—	1	0
Call · $22.5 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $22.5 In the money Last $9.81 Breakeven $12.69 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		$10.04	—	—	2	2
Call · $23 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $23 In the money Last $10.04 Breakeven $12.96 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 Model this put
0	—	—	—	—		$10.46	—	—	2	1
Call · $23.5 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $23.5 In the money Last $10.46 Breakeven $13.04 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this put
0	—	—	—	—		$11.40	—	—	1	1
Call · $24 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $24 In the money Last $11.40 Breakeven $12.60 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this put
0	—	—	—	—		$11.95	—	—	1	3
Call · $24.5 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $24.5 In the money Last $11.95 Breakeven $12.55 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 Model this put
0	—	—	—	—		$12.44	—	—	2	16
Call · $25 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $25 In the money Last $12.44 Breakeven $12.56 Implied vol — Delta — Gamma — Theta — Vega — Open interest 16 Model this put
0	—	—	—	—		$12.95	—	—	1	31
Call · $25.5 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $25.5 In the money Last $12.95 Breakeven $12.55 Implied vol — Delta — Gamma — Theta — Vega — Open interest 31 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $26 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $26 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		$13.71	-0.955	582.8%	6	4
Call · $26.5 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $26.5 In the money Last $13.71 Breakeven $12.79 Implied vol 582.8% Delta -0.955 ≈96% ITM Gamma 0.019 Theta -0.143 Vega 0.001 Open interest 4 Model this put
0	—	—	—	—		$14.22	—	—	7	6
Call · $27 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $27 In the money Last $14.22 Breakeven $12.78 Implied vol — Delta — Gamma — Theta — Vega — Open interest 6 Model this put
0	—	—	—	—		$14.67	—	—	1	1
Call · $27.5 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $27.5 In the money Last $14.67 Breakeven $12.83 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this put
0	—	—	—	—		$15.10	—	—	2	0
Call · $28 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $28 In the money Last $15.10 Breakeven $12.90 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
1	1	—	—	$0.20		$14.90	—	—	4	1
Call · $30 Last $0.20 Breakeven $30.20 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $30 In the money Last $14.90 Breakeven $15.10 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this put

About this data

Greeks, implied volatility, open interest and the last price come from the latest daily snapshot and are 15-minute delayed. 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. The 25 strikes around the money are shown by default — switch to "All 46" for the wings. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.

Key facts CIK 1599298 CUSIP 86627T108 13F (30d) 35 filings 35 filers Visit website Investor relations