WisdomTree U.S. MidCap Fund

EZMAMEX · USD
71.80USD-0.39 (-0.55%)

WisdomTree U.S. MidCap Fund (EZM) Historical Volatility

EZM 30-day historical volatility is 9%. This ranks in the 3th percentile of readings over the past year.

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Tracking EZM historical volatility helps you see how much WisdomTree U.S. MidCap Fund'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, WisdomTree U.S. MidCap Fund's HV tells you what really happened. Use our scanner to monitor EZM 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 EZM 30 day historical volatility is one of the most widely watched readings because it balances responsiveness with stability. Comparing WisdomTree U.S. MidCap Fund'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.

Under normal circumstances, at least 95% of the fund's total assets (exclusive of collateral held from securities lending) will be invested in component securities of the index and investments that have economic characteristics that are substantially identical to the economic characteristics of such component securities. The index is a fundamentally weighted index that is comprised of earnings-generating companies within the mid-capitalization segment of the U.S. stock market. The fund is non-diversified.

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 WisdomTree U.S. MidCap Fund's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where EZM HV is running hot, cold, or in line. Make the EZM 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 29, 2026

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

As of September 29, 2026

See how volatility has moved over time

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

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