Indxx Aerospace & Defense ETF
Indxx Aerospace & Defense ETF (MISL) Historical Volatility
MISL 30-day historical volatility is 20%. This ranks in the 18th percentile of readings over the past year.
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Tracking MISL historical volatility helps you see how much Indxx Aerospace & Defense 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, Indxx Aerospace & Defense ETF's HV tells you what really happened. Use our scanner to monitor MISL 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 MISL 30 day historical volatility is one of the most widely watched readings because it balances responsiveness with stability. Comparing Indxx Aerospace & Defense 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 First Trust Indxx Aerospace & Defense ETF (the "Fund") seeks investment results that correspond generally to the price and yield, before fees and expenses, of an equity index called the Indxx US Aerospace & Defense Index (the "Index"). Under normal market conditions, the Fund will invest at least 80% of its net assets (plus any borrowings for investment purposes) in the common stocks that comprise the Index.
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 Indxx Aerospace & Defense ETF's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where MISL HV is running hot, cold, or in line. Make the MISL 30 day historical volatility — and every other window — work for your edge instead of against it.
As of September 17, 2026
As of September 17, 2026
See how volatility has moved over time
Track MISL historical volatility, spot where IV and realized volatility diverge, and find options that are priced in your favor right now.
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