Guardant Health Inc
Guardant Health Inc (GH) Historical Volatility
GH 30-day historical volatility is 42%. This ranks in the 17th percentile of readings over the past year.
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Tracking GH historical volatility helps you see how much Guardant Health Inc's stock price has actually moved over past periods, giving you a baseline to judge whether current option premiums are fair, cheap, or expensive. While implied volatility tells you what the market expects, Guardant Health Inc's HV tells you what really happened. Use our scanner to monitor GH 30 day historical volatility alongside longer lookback windows and spot the moments when realized and implied diverge.
Historical volatility is the annualized standard deviation of an underlying's past returns, typically measured over rolling windows like 10, 20, 30, or 60 days. The GH 30 day historical volatility is one of the most widely watched readings because it balances responsiveness with stability. Comparing Guardant Health Inc's HV to its implied volatility reveals the volatility risk premium — when IV sits well above HV, option sellers tend to have an edge; when HV runs hot relative to IV, buyers may be underpaying for movement.
Guardant Health, Inc., a precision oncology company, provides blood tests, data sets, and analytics in the United States and internationally. The company offers Guardant360, Guardant360 LDT, Guardant360 CDx, and GuardantOMNI liquid biopsy-based tests for advanced stage cancer; and GuardantINFORM, an in-silico research platform that comprise a clinical-genomic liquid biopsy dataset of advanced cancer patients. It is also developing LUNAR-2 test for the early detection of colorectal cancer in asymptomatic individuals eligible; and GuardantConnect, an integrated software-based solution for clinical and biopharmaceutical customers seeking to connect patients tested with the Guardant360 assay with actionable alterations with potentially relevant clinical trials.
In addition, the company offers Guardant Reveal Test for neoadjuvant and adjuvant treatment selection in early-stage cancer patients; Guardant360 tissue genotyping product; and Guardant-19 for use in the detection of the novel coronavirus. Further, it offers development services, including companion diagnostic development and regulatory approval, clinical study setup, monitoring and maintenance, testing development and support, and kits fulfillment related services to biopharmaceutical companies and medical institutions. The company was incorporated in 2011 and is headquartered in Redwood City, California.
Sizing a long premium trade, modeling a covered call, or hunting volatility arbitrage all come back to one question: how much has the stock actually moved? Our scanner puts Guardant Health Inc's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where GH HV is running hot, cold, or in line. Make the GH 30 day historical volatility — and every other window — work for your edge instead of against it.
As of September 25, 2026
As of September 25, 2026
See how volatility has moved over time
Track GH historical volatility, spot where IV and realized volatility diverge, and find options that are priced in your favor right now.
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