iShares 25+ Year Treasury STRIPS Bond ETF

GOVZCBOE · USD
32.12USD0.00 (-0.47%)

iShares 25+ Year Treasury STRIPS Bond ETF (GOVZ) Historical Volatility

GOVZ 30-day historical volatility is 19%. This ranks in the 87th percentile of readings over the past year.

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Tracking GOVZ historical volatility helps you see how much iShares 25+ Year Treasury STRIPS Bond 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, iShares 25+ Year Treasury STRIPS Bond ETF's HV tells you what really happened. Use our scanner to monitor GOVZ 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 GOVZ 30 day historical volatility is one of the most widely watched readings because it balances responsiveness with stability. Comparing iShares 25+ Year Treasury STRIPS Bond 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 iShares 25+ Year Treasury STRIPS Bond ETF seeks to track the investment results of an index composed of the principal payments of U.S. Treasury bonds (specifically principal “STRIPS”, also known as “Separate Trading of Registered Interest and Principal Securities”) with remaining maturities of at least 25 years.

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 iShares 25+ Year Treasury STRIPS Bond ETF's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where GOVZ HV is running hot, cold, or in line. Make the GOVZ 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 25, 2026

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

As of September 25, 2026

See how volatility has moved over time

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

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