GH · Guardant Health, Inc.

Track GH — free Ask ALVIS about GH

$157.58 -5.60 (-3.43%) At close · Aug 6

Market Cap

$21.15B

134.20M

Options Chain

15-min delayed Underlying $157.58 · at close Aug 6, 2026 Options Calculator

Positioning

Aug 21, 2026 · 14 days to expiry · 60 contracts

Put / call OI

1.54

Put-heavy positioning

Open interest

9,191

contracts outstanding

Volume

338

traded today

Max pain

$155.00

$2.58 below spot

ATM implied vol

48.1%

market's expected move

Open interest by strike · near the money

Calls Puts

100

105

110

115

120

125

130

135

140

145

150

155

160

165

170

175

180

185

190

195

200

210

220

230

240

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 14d Sep 18 42d Oct 16 70d Jan 15 161d Mar 19 224d Jan 21 532d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
2	2	0.1%	1	$77.00		—	-0.017	194.2%	—	0
Call · $75 In the money Last $77.00 Breakeven $152.00 Implied vol 0.1% Delta 1 ≈100% ITM Gamma 0 Theta -0.007 Vega 0 Open interest 2 Model this call Put · $75 Last — Breakeven — Implied vol 194.2% Delta -0.017 ≈2% ITM Gamma 0.001 Theta -0.086 Vega 0.011 Open interest 0 Model this put
2	2	—	—	$72.00		—	-0.018	179.4%	—	0
Call · $80 In the money Last $72.00 Breakeven $152.00 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 Model this call Put · $80 Last — Breakeven — Implied vol 179.4% Delta -0.018 ≈2% ITM Gamma 0.001 Theta -0.086 Vega 0.011 Open interest 0 Model this put
1	1	0.1%	1	$74.00		—	-0.021	169.3%	—	0
Call · $85 In the money Last $74.00 Breakeven $159.00 Implied vol 0.1% Delta 1 ≈100% ITM Gamma 0 Theta -0.008 Vega 0 Open interest 1 Model this call Put · $85 Last — Breakeven — Implied vol 169.3% Delta -0.021 ≈2% ITM Gamma 0.001 Theta -0.093 Vega 0.023 Open interest 0 Model this put
0	—	101.5%	0.998	—		$0.05	-0.021	152.6%	10	10
Call · $90 In the money Last — Breakeven — Implied vol 101.5% Delta 0.998 ≈100% ITM Gamma 0 Theta -0.015 Vega 0.002 Open interest 0 Model this call Put · $90 Last $0.05 Breakeven $89.95 Implied vol 152.6% Delta -0.021 ≈2% ITM Gamma 0.001 Theta -0.084 Vega 0.012 Open interest 10 Model this put
0	—	0.1%	1	—		—	-0.023	139.4%	—	0
Call · $95 In the money Last — Breakeven — Implied vol 0.1% Delta 1 ≈100% ITM Gamma 0 Theta -0.009 Vega 0 Open interest 0 Model this call Put · $95 Last — Breakeven — Implied vol 139.4% Delta -0.023 ≈2% ITM Gamma 0.001 Theta -0.083 Vega 0.025 Open interest 0 Model this put
11	1	111.3%	0.985	$56.77		$0.04	-0.027	128.6%	4	70
Call · $100 In the money Last $56.77 Breakeven $156.77 Implied vol 111.3% Delta 0.985 ≈99% ITM Gamma 0.001 Theta -0.054 Vega 0.013 Open interest 11 Model this call Put · $100 Last $0.04 Breakeven $99.96 Implied vol 128.6% Delta -0.027 ≈3% ITM Gamma 0.002 Theta -0.087 Vega 0.025 Open interest 70 Model this put
2	2	—	—	$54.25		$0.25	-0.043	129%	3	97
Call · $105 In the money Last $54.25 Breakeven $159.25 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 Model this call Put · $105 Last $0.25 Breakeven $104.75 Implied vol 129% Delta -0.043 ≈4% ITM Gamma 0.002 Theta -0.126 Vega 0.026 Open interest 97 Model this put
6	20	0.1%	1	$34.35		$0.01	-0.034	105.8%	21	518
Call · $110 In the money Last $34.35 Breakeven $144.35 Implied vol 0.1% Delta 1 ≈100% ITM Gamma 0 Theta -0.011 Vega 0 Open interest 6 Model this call Put · $110 Last $0.01 Breakeven $109.99 Implied vol 105.8% Delta -0.034 ≈3% ITM Gamma 0.002 Theta -0.086 Vega 0.027 Open interest 518 Model this put
1	1	0.1%	1	$39.67		$0.96	-0.034	91.9%	1	36
Call · $115 In the money Last $39.67 Breakeven $154.67 Implied vol 0.1% Delta 1 ≈100% ITM Gamma 0 Theta -0.011 Vega 0 Open interest 1 Model this call Put · $115 Last $0.96 Breakeven $114.04 Implied vol 91.9% Delta -0.034 ≈3% ITM Gamma 0.003 Theta -0.074 Vega 0.027 Open interest 36 Model this put
16	10	0.1%	1	$41.08		$2.00	-0.022	71.7%	2	49
Call · $120 In the money Last $41.08 Breakeven $161.08 Implied vol 0.1% Delta 1 ≈100% ITM Gamma 0 Theta -0.012 Vega 0 Open interest 16 Model this call Put · $120 Last $2.00 Breakeven $118.00 Implied vol 71.7% Delta -0.022 ≈2% ITM Gamma 0.002 Theta -0.041 Vega 0.014 Open interest 49 Model this put
31	10	45.6%	0.996	$29.38		$0.21	-0.091	94.6%	5	215
Call · $125 In the money Last $29.38 Breakeven $154.38 Implied vol 45.6% Delta 0.996 ≈100% ITM Gamma 0.001 Theta -0.018 Vega 0.006 Open interest 31 Model this call Put · $125 Last $0.21 Breakeven $124.79 Implied vol 94.6% Delta -0.091 ≈9% ITM Gamma 0.006 Theta -0.167 Vega 0.049 Open interest 215 Model this put
44	10	54.1%	0.97	$31.48		$0.19	-0.036	56.4%	6	2.8k
Call · $130 In the money Last $31.48 Breakeven $161.48 Implied vol 54.1% Delta 0.97 ≈97% ITM Gamma 0.004 Theta -0.052 Vega 0.029 Open interest 44 Model this call Put · $130 Last $0.19 Breakeven $129.81 Implied vol 56.4% Delta -0.036 ≈4% ITM Gamma 0.004 Theta -0.048 Vega 0.029 Open interest 2.8k Model this put
168	10	53.2%	0.94	$26.78		$0.80	-0.089	61.1%	1	317
Call · $135 In the money Last $26.78 Breakeven $161.78 Implied vol 53.2% Delta 0.94 ≈94% ITM Gamma 0.007 Theta -0.082 Vega 0.029 Open interest 168 Model this call Put · $135 Last $0.80 Breakeven $134.20 Implied vol 61.1% Delta -0.089 ≈9% ITM Gamma 0.008 Theta -0.105 Vega 0.051 Open interest 317 Model this put
63	11	60.2%	0.857	$23.78		$0.94	-0.131	57.3%	2	165
Call · $140 In the money Last $23.78 Breakeven $163.78 Implied vol 60.2% Delta 0.857 ≈86% ITM Gamma 0.012 Theta -0.159 Vega 0.078 Open interest 63 Model this call Put · $140 Last $0.94 Breakeven $139.06 Implied vol 57.3% Delta -0.131 ≈13% ITM Gamma 0.012 Theta -0.131 Vega 0.078 Open interest 165 Model this put
137	1	51.1%	0.815	$20.80		$1.83	-0.211	58.5%	18	159
Call · $145 In the money Last $20.80 Breakeven $165.80 Implied vol 51.1% Delta 0.815 ≈81% ITM Gamma 0.017 Theta -0.16 Vega 0.079 Open interest 137 Model this call Put · $145 Last $1.83 Breakeven $143.17 Implied vol 58.5% Delta -0.211 ≈21% ITM Gamma 0.016 Theta -0.183 Vega 0.104 Open interest 159 Model this put
160	8	54.7%	0.703	$16.00		$2.77	-0.261	43.5%	10	158
Call · $150 In the money Last $16.00 Breakeven $166.00 Implied vol 54.7% Delta 0.703 ≈70% ITM Gamma 0.02 Theta -0.216 Vega 0.106 Open interest 160 Model this call Put · $150 Last $2.77 Breakeven $147.23 Implied vol 43.5% Delta -0.261 ≈26% ITM Gamma 0.024 Theta -0.149 Vega 0.106 Open interest 158 Model this put
231	4	52.7%	0.594	$12.25		$4.37	-0.404	50.4%	3	451
Call · $155 In the money Last $12.25 Breakeven $167.25 Implied vol 52.7% Delta 0.594 ≈59% ITM Gamma 0.023 Theta -0.23 Vega 0.124 Open interest 231 Model this call Put · $155 Last $4.37 Breakeven $150.63 Implied vol 50.4% Delta -0.404 ≈40% ITM Gamma 0.025 Theta -0.206 Vega 0.124 Open interest 451 Model this put
Underlying $157.58
241	23	49.3%	0.471	$5.91		$6.78	-0.534	47%	10	289
Call · $160 Last $5.91 Breakeven $165.91 Implied vol 49.3% Delta 0.471 ≈47% ITM Gamma 0.026 Theta -0.22 Vega 0.126 Open interest 241 Model this call Put · $160 In the money Last $6.78 Breakeven $153.22 Implied vol 47% Delta -0.534 ≈53% ITM Gamma 0.027 Theta -0.195 Vega 0.126 Open interest 289 Model this put
111	5	53.2%	0.363	$3.50		$9.80	-0.647	50.6%	4	16
Call · $165 Last $3.50 Breakeven $168.50 Implied vol 53.2% Delta 0.363 ≈36% ITM Gamma 0.023 Theta -0.224 Vega 0.113 Open interest 111 Model this call Put · $165 In the money Last $9.80 Breakeven $155.20 Implied vol 50.6% Delta -0.647 ≈65% ITM Gamma 0.024 Theta -0.196 Vega 0.113 Open interest 16 Model this put
212	8	49.9%	0.246	$2.20		$14.40	-0.773	46.5%	5	55
Call · $170 Last $2.20 Breakeven $172.20 Implied vol 49.9% Delta 0.246 ≈25% ITM Gamma 0.02 Theta -0.177 Vega 0.088 Open interest 212 Model this call Put · $170 In the money Last $14.40 Breakeven $155.60 Implied vol 46.5% Delta -0.773 ≈77% ITM Gamma 0.021 Theta -0.143 Vega 0.088 Open interest 55 Model this put
72	12	56.1%	0.199	$1.67		$14.53	-0.85	48.2%	1	122
Call · $175 Last $1.67 Breakeven $176.67 Implied vol 56.1% Delta 0.199 ≈20% ITM Gamma 0.016 Theta -0.173 Vega 0.089 Open interest 72 Model this call Put · $175 In the money Last $14.53 Breakeven $160.47 Implied vol 48.2% Delta -0.85 ≈85% ITM Gamma 0.016 Theta -0.112 Vega 0.086 Open interest 122 Model this put
209	8	57.6%	0.14	$2.05		$21.30	-0.883	53.2%	2	10
Call · $180 Last $2.05 Breakeven $182.05 Implied vol 57.6% Delta 0.14 ≈14% ITM Gamma 0.012 Theta -0.143 Vega 0.06 Open interest 209 Model this call Put · $180 In the money Last $21.30 Breakeven $158.70 Implied vol 53.2% Delta -0.883 ≈88% ITM Gamma 0.012 Theta -0.103 Vega 0.059 Open interest 10 Model this put
323	1	54.5%	0.079	$0.90		$37.90	-0.92	55.7%	2	6
Call · $185 Last $0.90 Breakeven $185.90 Implied vol 54.5% Delta 0.079 ≈8% ITM Gamma 0.009 Theta -0.089 Vega 0.062 Open interest 323 Model this call Put · $185 In the money Last $37.90 Breakeven $147.10 Implied vol 55.7% Delta -0.92 ≈92% ITM Gamma 0.009 Theta -0.08 Vega 0.057 Open interest 6 Model this put
624	5	63.6%	0.08	$1.37		—	-0.981	47.5%	—	0
Call · $190 Last $1.37 Breakeven $191.37 Implied vol 63.6% Delta 0.08 ≈8% ITM Gamma 0.007 Theta -0.105 Vega 0.062 Open interest 624 Model this call Put · $190 In the money Last — Breakeven — Implied vol 47.5% Delta -0.981 ≈98% ITM Gamma 0.005 Theta -0.018 Vega 0.014 Open interest 0 Model this put
823	21	61%	0.048	$0.40		$33.32	—	—	1	1
Call · $195 Last $0.40 Breakeven $195.40 Implied vol 61% Delta 0.048 ≈5% ITM Gamma 0.005 Theta -0.066 Vega 0.037 Open interest 823 Model this call Put · $195 In the money Last $33.32 Breakeven $161.68 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this put
18	2	65%	0.038	$0.55		—	-0.964	66.3%	—	0
Call · $200 Last $0.55 Breakeven $200.55 Implied vol 65% Delta 0.038 ≈4% ITM Gamma 0.004 Theta -0.059 Vega 0.037 Open interest 18 Model this call Put · $200 In the money Last — Breakeven — Implied vol 66.3% Delta -0.964 ≈96% ITM Gamma 0.005 Theta -0.048 Vega 0.031 Open interest 0 Model this put
17	1	81.2%	0.046	$0.22		—	—	—	—	0
Call · $210 Last $0.22 Breakeven $210.22 Implied vol 81.2% Delta 0.046 ≈5% ITM Gamma 0.004 Theta -0.086 Vega 0.038 Open interest 17 Model this call Put · $210 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
63	16	96.6%	0.053	$0.08		$59.70	-0.963	91.9%	2	0
Call · $220 Last $0.08 Breakeven $220.08 Implied vol 96.6% Delta 0.053 ≈5% ITM Gamma 0.004 Theta -0.113 Vega 0.039 Open interest 63 Model this call Put · $220 In the money Last $59.70 Breakeven $160.30 Implied vol 91.9% Delta -0.963 ≈96% ITM Gamma 0.003 Theta -0.071 Vega 0.034 Open interest 0 Model this put
4	1	99.9%	0.036	$0.20		$58.00	-0.966	102%	2	0
Call · $230 Last $0.20 Breakeven $230.20 Implied vol 99.9% Delta 0.036 ≈4% ITM Gamma 0.002 Theta -0.086 Vega 0.02 Open interest 4 Model this call Put · $230 In the money Last $58.00 Breakeven $172.00 Implied vol 102% Delta -0.966 ≈97% ITM Gamma 0.003 Theta -0.074 Vega 0.018 Open interest 0 Model this put
24	24	108.4%	0.033	$0.10		$68.00	-0.984	99.2%	3	0
Call · $240 Last $0.10 Breakeven $240.10 Implied vol 108.4% Delta 0.033 ≈3% ITM Gamma 0.002 Theta -0.087 Vega 0.02 Open interest 24 Model this call Put · $240 In the money Last $68.00 Breakeven $172.00 Implied vol 99.2% Delta -0.984 ≈98% ITM Gamma 0.002 Theta -0.035 Vega 0.015 Open interest 0 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 30" 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 1576280 CUSIP 40131M109 13F (30d) 219 filings 194 filers Visit website Investor relations