Caredx Inc
Caredx Inc (CDNA) Historical Volatility
CDNA 30-day historical volatility is 53%. This ranks in the 42th percentile of readings over the past year.
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Tracking CDNA historical volatility helps you see how much Caredx 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, Caredx Inc's HV tells you what really happened. Use our scanner to monitor CDNA 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 CDNA 30 day historical volatility is one of the most widely watched readings because it balances responsiveness with stability. Comparing Caredx 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.
CareDx, Inc. discovers, develops, and commercializes diagnostic solutions for transplant patients and caregivers worldwide. It provides AlloSure Kidney, a donor-derived cell-free DNA (dd-cfDNA) solution for kidney transplant patients; AlloMap Heart, a gene expression solution for heart transplant patients; AlloSure Heart, a dd-cfDNA solution for heart transplant patients; and AlloSure Lung, a dd-cfDNA solution for lung transplant patients. The company also offers TruSight HLA, a next generation sequencing (NGS) based high resolution typing solution; Olerup SSP, which is used to type human leukocyte antigen (HLA) alleles based on sequence specific primer technology; QTYPE that enables precision in HLA typing; and Ottr, a transplant patient management software.
In addition, it provides AlloSeq Tx, a high-resolution HLA typing solution; AlloSeq cfDNA, a surveillance solution to measure dd-cfDNA in blood; AlloSeq HCT, a solution for chimerism testing for stem cell transplant recipients; and XynQAPI transplant quality tracking and waitlist management solutions, as well as AlloCare, a mobile app that offers a patient-centric resource for transplant recipients. The company offers its products directly to customers, as well as through third-party distributors and sub-distributors. It has a license agreement with Illumina, Inc. for the distribution, development, and commercialization of NGS products and technologies; and Cibiltech SAS to commercialize iBox, a software for the predictive analysis of post-transplantation kidney allograft loss. The company was formerly known as XDx, Inc. and changed its name to CareDx, Inc. in March 2014. The company was incorporated in 1998 and is headquartered in South San Francisco, 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 Caredx Inc's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where CDNA HV is running hot, cold, or in line. Make the CDNA 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 CDNA historical volatility, spot where IV and realized volatility diverge, and find options that are priced in your favor right now.
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