Vanguard Long-Term Treasury ETF
Vanguard Long-Term Treasury ETF (VGLT) Historical Volatility
VGLT 30-day historical volatility is 11%. This ranks in the 92th percentile of readings over the past year.
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Tracking VGLT historical volatility helps you see how much Vanguard Long-Term Treasury 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, Vanguard Long-Term Treasury ETF's HV tells you what really happened. Use our scanner to monitor VGLT 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 VGLT 30 day historical volatility is one of the most widely watched readings because it balances responsiveness with stability. Comparing Vanguard Long-Term Treasury 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.
Seeks to provide a high and sustainable level of current income. Invests primarily in U.S. Treasury bonds. Maintains a dollar-weighted average maturity of 10 to 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 Vanguard Long-Term Treasury ETF's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where VGLT HV is running hot, cold, or in line. Make the VGLT 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 VGLT historical volatility, spot where IV and realized volatility diverge, and find options that are priced in your favor right now.
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