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GH — Guardant Health, Inc. Common Stock

Nasdaq

Guardant Health, Inc. Common Stock

CompareBack to Screener
$177.80
+3.05(+1.75%)
O
173.32
H
179.17
L
172.00
V
1.65M
⏱️ End-of-day dataAs of Oct 2, 2026
Underlying Price$177.80
Implied Volatility (IV)0.6%
Put / Call Ratio0.36
Total Options Volume75
Total Open Interest12.3K
Selected Expiration2026-10-16
Expiration
CALLSSTRIKEPUTS
CalculatorLastChg% ChgBidAskVolOIIVStrikeLastChg% ChgBidAskVolOIIVCalculator
$18.50+0.00-$17.50$21.40-2170.6%$160.00$1.70+0.00-$0.80$2.60-2260.5%
$17.00+0.00-$13.30$17.20-170.5%$165.00$1.88-0.89-$0.35$3.6061700.5%
$12.45+0.00-$9.70$13.50-1310.5%$170.00$3.11-0.29-$1.05$4.70113860.5%
$6.60+0.00-$6.20$10.30-1790.5%$175.00$6.30+0.00-$2.75$6.60-1990.5%
$4.95-0.51-$5.00$7.4011.8K0.5%$180.00ATM$8.20-1.70-$5.30$9.4032040.4%
$3.80+0.40-$3.00$4.60101460.5%$185.00$12.00+0.00-$8.30$12.20-280.4%
$2.60+0.25-$1.75$2.60299250.4%$190.00$16.45+0.00-$11.90$15.70-20.4%
$1.49+0.10-$0.05$3.6014840.5%$195.00$42.00+0.00-$16.10$20.10-20.4%

Open Interest & Max Pain

2026-10-16
Max Pain$160.00-10.0% vs price
Call Open Interest5.8K
Put Open Interest6.4K
Put / Call (Open Interest)1.10
CallsPutsPrice $177.80Max painTop of chart = 1.8K contracts
145
155
Max pain $160
165
175
185
195
210

Max pain is the strike where the open options would be worth the least at expiration, i.e. where option buyers as a group would lose the most. The chart shows strikes within 20% of the price. Open interest is from the last end-of-day update.