Sterling slides on energy costs as UK leadership contest lifts volatility, fiscal rules underpin outlook

    by VT Markets
    /
    May 22, 2026

    Sterling has weakened against the US Dollar, moving in line with the Euro, with energy prices cited as a main driver. UK political uncertainty is expected to raise short-term volatility in Sterling and gilt markets, especially if there is a leadership contest.

    This volatility is expected to be brief. Continuity in government policy, including Rachel Reeves remaining as chancellor, is linked to maintaining existing fiscal rules.

    Fiscal Rules Support Market Stability

    Fiscal rules are described as supporting market stability. Under political change, policies are not expected to worsen the UK’s financial position.

    New leadership could lead to higher government spending while still following the fiscal rules. This combination is presented as a factor that could support the Pound.

    The article states it was produced with the help of an Artificial Intelligence tool and reviewed by an editor.

    Sterling has been weakening against the US dollar, much like the euro, largely due to rising energy prices. We are seeing the pound trade near 1.2450 amid news that the Prime Minister will step down, triggering a leadership contest within the Labour party. This political uncertainty is what traders should be focused on right now.

    Trading Strategy For Short Dated Volatility

    This uncertainty has caused a noticeable jump in market nervousness. For instance, one-month implied volatility for GBP/USD options has risen from around 6.5% to over 8.5% in the past two weeks. However, we anticipate this period of instability will be brief and represents an opportunity.

    The key reason for our view is the likely continuity in fiscal policy under Chancellor Rachel Reeves. Her commitment to the existing fiscal rules has been a source of stability for markets, a stark contrast to the volatility seen during the brief Truss premiership back in 2022. We believe this foundation will remain in place regardless of who leads the party.

    Looking back, the relative calm in the gilt markets throughout 2025 was built on this perceived stability. While UK 10-year gilt yields have ticked up to 4.35% on the recent political news, we don’t expect a major sell-off. The more pressing issue for the pound’s direction remains the broader economic picture, including recent UK natural gas futures climbing 12% last month.

    Therefore, the spike in implied volatility looks overdone and presents a trading opportunity. We suggest traders consider selling short-dated sterling volatility, such as through selling strangles or puts. This strategy would profit from the expected decline in volatility once the leadership situation clarifies and the market refocuses on the stable fiscal outlook.

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