VanEck Short Muni ETF (SMB) Gamma Exposure (GEX) & Greeks
Gamma exposure (GEX) analysis shows how options positioning creates dealer hedging pressure across strikes. Includes delta, vanna, charm, vomma, and vega exposure by strike price.
VanEck Short Muni ETF (SMB) operates in the Financial Services sector, specifically the Asset Management - Leveraged industry, with a market capitalization near $304.0M, listed on CBOE, carrying a beta of 0.34 to the broader market. The VanEck Short Muni ETF (SMB) seeks to replicate as closely as possible, before fees and expenses, the price and yield performance of the ICE Short AMT-Free Broad National Municipal Index (MBNS), which is intended to track the overall performance of the U. public since 2008-02-28.
Snapshot as of May 15, 2026.
- Spot Price
- $17.23
- Net Gamma
- -$3
- Net Delta
- $1.7K
- Net Vega
- $0
- Gamma Concentration
- 1.00
As of May 15, 2026, VanEck Short Muni ETF (SMB) has negative net gamma exposure of $3 under the standard dealer-hedging convention. Net delta exposure is $1.7K. Negative GEX means dealers are net short gamma: they must sell into weakness and buy into strength, amplifying realized volatility and accelerating directional moves.
SMB Strategy Sizing in the Current GEX Regime
VanEck Short Muni ETF is in a negative dealer-gamma regime ($3). Net dealer delta of $1.7K sets the size of the directional hedging flow that fires as spot moves. In this regime, momentum and breakout strategies fit the regime: long calls or puts, ratio backspreads, calendar spreads positioned for vol expansion. Realized volatility tends to overshoot implied during negative-gamma stretches, hurting indiscriminate short-vol exposure. The gamma-flip level - the spot price at which net dealer gamma changes sign - is the most actionable anchor for sizing: through-flip moves trigger qualitatively different hedging behavior than within-regime moves, so risk-defined structures sized to the current spot may not stay sized correctly if a flip is near.
Learn how gamma exposure is reported and how to read the data →
Frequently asked SMB gamma exposure (gex) & greeks questions
- What is the current SMB gamma exposure (GEX)?
- As of May 15, 2026, VanEck Short Muni ETF (SMB) net gamma exposure is negative at $3 under the standard dealer-hedging convention. Net dealer delta exposure is $1.7K. GEX aggregates the gamma sitting on dealer books across all listed strikes and expirations.
- Is SMB in positive or negative dealer gamma right now?
- SMB is currently in negative dealer gamma. Dealers net short gamma must sell into weakness and buy into strength to maintain delta-neutrality, which amplifies realized volatility and tends to accelerate directional moves.
- What does SMB GEX tell options traders?
- GEX is a regime indicator: positive-gamma regimes favor mean-reverting strategies (premium-selling near established ranges); negative-gamma regimes favor momentum and breakout strategies. The same options-strategy structure can be appropriate or inappropriate depending on the dealer-gamma regime, so reading the sign and magnitude of net GEX before sizing positions is standard practice.