Castle Biosciences Inc (CSTL) Historical Volatility

Tracking CSTL historical volatility helps you see how much Castle Biosciences 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, Castle Biosciences Inc's HV tells you what really happened. Use our scanner to monitor CSTL 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 CSTL 30 day historical volatility is one of the most widely watched readings because it balances responsiveness with stability. Comparing Castle Biosciences 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.

Castle Biosciences, Inc., a commercial-stage diagnostics company, focuses to provide diagnostic and prognostic testing services for dermatological cancers. Its lead product is DecisionDx-Melanoma, a multi-gene expression profile (GEP) test to identify the risk of metastasis for patients diagnosed with invasive cutaneous melanoma. The company also offers DecisionDx-UM test, a proprietary GEP test that predicts the risk of metastasis for patients with uveal melanoma, a rare eye cancer; DecisionDx-SCC, a proprietary 40-gene expression profile test that uses an individual patient's tumor biology to predict individual risk of squamous cell carcinoma metastasis for patients with one or more risk factors; and DecisionDx DiffDx-Melanoma and myPath Melanoma, a proprietary GEP test to diagnose suspicious pigmented lesions.

It offers test services through physicians and their patients. The company was founded in 2007 and is headquartered in Friendswood, Texas.

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 Castle Biosciences Inc's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where CSTL HV is running hot, cold, or in line. Make the CSTL 30 day historical volatility — and every other window — work for your edge instead of against it.