Vanguard S&P 500 ETF

VOOAMEX · USD
707.60USD0.00 (-0.73%)

Vanguard S&P 500 ETF (VOO) Historical Volatility

VOO 30-day historical volatility is 10%. This ranks in the 14th percentile of readings over the past year.

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Tracking VOO historical volatility helps you see how much Vanguard S&P 500 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 S&P 500 ETF's HV tells you what really happened. Use our scanner to monitor VOO 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 VOO 30 day historical volatility is one of the most widely watched readings because it balances responsiveness with stability. Comparing Vanguard S&P 500 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.

Invests in stocks in the S&P 500 Index, representing 500 of the largest U.S. companies.Goal is to closely track the index’s return, which is considered a gauge of overall U.S. stock returns.Offers high potential for investment growth; share value rises and falls more sharply than that of funds holding bonds.More appropriate for long-term goals where your money’s growth is essential.With respect to 75% of its total assets, the fund may not: (1) purchase more than 10% of the outstanding voting securities of any one issuer or (2) purchase securities of any issuer if, as a result, more than 5% of the fund’s total assets would be invested in that issuer’s securities; except as may be necessary to approximate the composition of its target index.

This limitation does not apply to obligations of the U.S. government or its agencies or instrumentalities.

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 S&P 500 ETF's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where VOO HV is running hot, cold, or in line. Make the VOO 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 22, 2026

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

As of September 22, 2026

See how volatility has moved over time

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

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