Invesco CurrencyShares British Pound Sterling Trust (FXB) 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.
Invesco CurrencyShares British Pound Sterling Trust (FXB) operates in the Financial Services sector, specifically the Asset Management industry, with a market capitalization near $84.5M, listed on AMEX, carrying a beta of 0.28 to the broader market. The Invesco CurrencyShares British Pound Sterling Trust (the "trust") is designed to track the price of the British pound sterling, and trades under the ticker symbol FXB. Led by Daniel Eugene Draper, public since 2006-06-26.
Snapshot as of May 14, 2026.
- Spot Price
- $128.83
- Net Gamma
- -$6.4M
- Net Delta
- $48.9M
- Net Vega
- -$169.5K
- Gamma Concentration
- 0.70
As of May 14, 2026, Invesco CurrencyShares British Pound Sterling Trust (FXB) has negative net gamma exposure of $6.4M under the standard dealer-hedging convention. Net delta exposure is $48.9M. Negative GEX means dealers are net short gamma: they must sell into weakness and buy into strength, amplifying realized volatility and accelerating directional moves.
FXB Strategy Sizing in the Current GEX Regime
Invesco CurrencyShares British Pound Sterling Trust is in a negative dealer-gamma regime ($6.4M). Net dealer delta of $48.9M 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 FXB gamma exposure (gex) & greeks questions
- What is the current FXB gamma exposure (GEX)?
- As of May 14, 2026, Invesco CurrencyShares British Pound Sterling Trust (FXB) net gamma exposure is negative at $6.4M under the standard dealer-hedging convention. Net dealer delta exposure is $48.9M. GEX aggregates the gamma sitting on dealer books across all listed strikes and expirations.
- Is FXB in positive or negative dealer gamma right now?
- FXB 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 FXB 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.