Janux Therapeutics Inc

JANXNASDAQ · USD
17.01USD+0.42 (+2.54%)
437

Janux Therapeutics Inc (JANX) Historical Volatility

JANX 30-day historical volatility is 52%. This ranks in the 65th percentile of readings over the past year.

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

Janux Therapeutics, Inc., a biopharmaceutical company, develops therapeutics based on proprietary Tumor Activated T Cell Engager (TRACTr) platform technology to treat patients suffering from cancer. The company's lead TRACTr product candidates that are in preclinical or discovery stage target prostate-specific membrane antigen, epidermal growth factor receptor, and trophoblast cell surface antigen 2. Janux Therapeutics, Inc. is also developing a Tumor Activated Immunomodulator (TRACIr) costimulatory bispecific product candidate against programmed death-ligand 1 and CD28 designed to improve the anti-tumor activity of T cells.

In addition, its EGFR-TRACTr is designed to target EGFR in many cancer types with multiple approved monoclonal antibodies. The company was incorporated in 2017 and is headquartered in La Jolla, 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 Janux Therapeutics Inc's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where JANX HV is running hot, cold, or in line. Make the JANX 30 day historical volatility — and every other window — work for your edge instead of against it.

IV vs HV
Implied Volatility (IV) vs Historical Volatility (HV) over the past month.

As of September 18, 2026

IV - HV Difference
Difference between IV and HV over time. Positive values indicate IV > HV.

As of September 18, 2026

See how volatility has moved over time

Track JANX historical volatility, spot where IV and realized volatility diverge, and find options that are priced in your favor right now.

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