Janus Henderson Mortgage-Backed Securities ETF
Janus Henderson Mortgage-Backed Securities ETF (JMBS) Historical Volatility
JMBS 30-day historical volatility is 7%. This ranks in the 100th percentile of readings over the past year.
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Tracking JMBS historical volatility helps you see how much Janus Henderson Mortgage-Backed Securities ETF'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, Janus Henderson Mortgage-Backed Securities ETF's HV tells you what really happened. Use our scanner to monitor JMBS 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 JMBS 30 day historical volatility is one of the most widely watched readings because it balances responsiveness with stability. Comparing Janus Henderson Mortgage-Backed Securities ETF'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.
The fund seeks to achieve its investment objective by investing mainly in mortgage-related instruments. Under normal circumstances, it will invest at least 80%, and often times substantially all, of its net assets (plus any borrowings for investment purposes) in a portfolio of mortgage-related fixed income instruments of varying maturities. Additionally, the fund may invest in derivatives.
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 Janus Henderson Mortgage-Backed Securities ETF's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where JMBS HV is running hot, cold, or in line. Make the JMBS 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 JMBS historical volatility, spot where IV and realized volatility diverge, and find options that are priced in your favor right now.
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