Vanguard Mid-Cap ETF (VO) Volatility Skew
Implied volatility skew shows how IV varies across strike prices for a given expiration. Steeper skews indicate higher demand for downside protection relative to upside speculation.
Vanguard Mid-Cap ETF (VO) operates in the Financial Services sector, specifically the Asset Management industry, with a market capitalization near $197.84B, listed on AMEX, carrying a beta of 1.02 to the broader market. Seeks to track the performance of the CRSP US Mid Cap Index, which measures the investment return of mid-capitalization stocks. public since 2004-01-30.
Snapshot as of May 15, 2026.
- Spot Price
- $76.63
- ATM IV
- 18.7%
- IV Skew 25Δ
- 0.083
- IV Rank
- 3.1%
- IV Percentile
- 81.7%
- Term Structure Slope
- -0.005
As of May 15, 2026, Vanguard Mid-Cap ETF (VO) at-the-money implied volatility is 18.7%. IV rank is 3.1% (where 0% is the 52-week low and 100% is the 52-week high). IV percentile is 81.7%. The 25-delta skew is +0.083: calls carry premium over puts, indicating upside speculation or squeeze risk. High IV rank typically favors premium-selling strategies; low IV rank favors premium-buying.
VO Strategy Selection at Current Volatility Levels
For Vanguard Mid-Cap ETF options at 18.7% ATM IV, low IV rank (3.1%) favors premium-buying or long-vol structures: long calls or puts, debit spreads, calendar spreads, long straddles. The risk: low-rank regimes can persist for months while time decay eats premium-buyers alive. The 25-delta skew tilts to calls, so call-credit spreads or covered-call writes harvest more premium than put-credit spreads of the same width. Pair the vol-rank read with the dealer-gamma view and the upcoming-events calendar to confirm the strategy fits both the structural regime and the path-dependent risk. The variance risk premium - the persistent gap between implied and subsequently realized vol - is positive in equity markets on average; high IV rank typically reflects a stretch where the premium is wider than usual.
Learn how volatility skew is reported and how to read the data →
Frequently asked VO volatility skew questions
- What is the current VO ATM implied volatility?
- As of May 15, 2026, Vanguard Mid-Cap ETF (VO) at-the-money implied volatility is 18.7%. IV rank is 3.1% on a 0-100% scale anchored to the 1-year IV range. ATM IV is the volatility input that makes a Black-Scholes-equivalent model reproduce the listed at-the-money option prices.
- Is VO IV high or low historically?
- IV is subdued relative to its 1-year history, conditions that typically favor premium-buying strategies (long calls, long puts, debit spreads, calendar spreads).
- What does VO volatility skew tell options traders?
- Volatility skew is the pattern by which IV varies across strikes for a given expiration. Vanguard Mid-Cap ETF shows upside-skewed pricing: 25-delta calls trade richer than 25-delta puts, often reflecting upside speculation or squeeze risk. Skew matters for risk-defined strategy selection: when downside puts are rich, put-credit spreads capture more premium; when upside calls are rich, call-credit spreads or covered-call writes harvest more.