Compass Therapeutics Inc

CMPXNASDAQ · USD
0.77USD0.00 (-5.64%)
122

Compass Therapeutics Inc (CMPX) Historical Volatility

CMPX's 30 day historical volatility is 81.06%, in the 75th percentile of readings over the past year. This is a high percentile, meaning Compass Therapeutics Inc shares have swung far more than usual. CMPX's 30 day implied volatility sits at 181.67%, with an IV Rank of 55.16%, leaving IV 100.61 points above historical volatility. This means options are pricing in more movement than the stock has actually delivered, as of Nov 13, 2026.

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Tracking CMPX historical volatility helps you see how much Compass Therapeutics Inc's stock price has actually moved, giving you a baseline for whether option premiums look fair, cheap, or expensive. While implied volatility shows what the market expects, CMPX's HV, also known as realized volatility, shows what actually happened. Use our scanner to monitor CMPX 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 a stock's past returns, typically measured over rolling windows like 10, 20, 30, or 60 days. CMPX's 30 day historical volatility, or CMPX HV, is one of the most widely watched readings because it balances responsiveness with stability. Comparing CMPX's HV to its implied volatility reveals the volatility risk premium. When IV sits well above HV, options are pricing in more movement than the stock has actually delivered, giving option sellers an edge. When HV runs hot relative to IV, options are pricing in less movement than the stock has delivered, and buyers may be underpaying for it.

Compass Therapeutics, Inc., a clinical-stage oncology-focused biopharmaceutical company, engages in developing antibody-based therapeutics to treat various human diseases. The company's product candidates in the clinical stage of development include CTX-009, an investigational bispecific antibody that blocks Delta-like ligand 4/Notch and vascular endothelial growth factor A signaling pathways, which are critical to angiogenesis and tumor vascularization; and CTX-471, an IgG4 monoclonal antibody that is an agonist of CD137. Its product candidates also comprise CTX-8371, a bispecific inhibitor that targets PD-1 and PD-L1.

Historical Volatility

HV Percentile
75thHV Percentile
High

Historical movement is elevated versus the past year. The stock has been unusually active.

Historical Volatility (30d)81.06%

HV Percentile75th

Implied Volatility (30d)181.67%

IV Rank55.16%

IV Minus HV+100.61%

As of Nov 13, 2026

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

As of Nov 13, 2026

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

As of Nov 13, 2026

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