Dimensional - US Small Cap ETF (DFAS) IV/HV History
Comparing implied volatility to historical (realized) volatility reveals whether options are priced rich or cheap relative to actual price movement. Persistent gaps can signal trading opportunities.
Dimensional - US Small Cap ETF (DFAS) operates in the Financial Services sector, specifically the Asset Management industry, with a market capitalization near $13.78B, listed on AMEX, carrying a beta of 1.14 to the broader market. The fund, using a market capitalization weighted approach, is designed to generally purchase a broad and diverse group of securities of U. public since 2021-06-14.
Snapshot as of May 15, 2026.
- Spot Price
- $75.75
- ATM IV
- 20.8%
- HV 20-Day
- 14.0%
- HV 60-Day
- 18.8%
- IV Rank
- 28.2%
- IV Percentile
- 48.8%
As of May 15, 2026, Dimensional - US Small Cap ETF (DFAS) ATM implied volatility is 20.8%. 20-day realized volatility is 14.0%, producing an IV-HV spread of +6.8 vol points. Options are pricing in more volatility than the stock has recently delivered, the volatility risk premium. IV rank is 28.2%.
How DFAS iv/hv history Data Feeds Strategy Selection
Strategy selection on Dimensional - US Small Cap ETF options does not derive from any single metric in isolation. The iv/hv history view above sits inside a broader read: ATM IV currently sits at 20.8% and dealer gamma exposure is negative, so dealer hedging amplifies directional moves. Combine the iv/hv history data here with the volatility-skew surface, dealer-gamma exposure, max-pain level, and upcoming-events calendar to build a positioning thesis. Risk-defined structures (credit spreads, debit spreads, iron condors) are usually safer than naked positions while the regime is uncertain; the data on this page anchors the inputs but does not by itself constitute a trade thesis.
Learn how implied vs realized volatility is reported and how to read the data →
Frequently asked DFAS iv/hv history questions
- Is DFAS options pricing rich or cheap right now?
- As of May 15, 2026, Dimensional - US Small Cap ETF (DFAS) ATM IV is 20.8% against 20-day realized volatility of 14.0%. IV rank is 28.2%. DFAS options are pricing in more volatility than the stock has recently realized: a positive variance risk premium worth 6.8 vol points.
- What is the DFAS variance risk premium?
- The variance risk premium is the persistent gap between implied and subsequently realized volatility. In equity markets it averages positive because option sellers demand compensation for bearing variance shocks. DFAS is currently priced consistently with this premium, which is one input to whether short-vol or long-vol structures carry their typical edge.
- What does DFAS IV rank mean for strategy selection?
- IV rank normalizes the current ATM IV to its 1-year range: 0% is the low, 100% is the high. DFAS's current rank of 28.2% signals where current pricing sits in its own 1-year history. High-rank regimes typically favor premium-selling structures (credit spreads, condors, covered calls); low-rank regimes typically favor premium-buying or long-volatility structures.