Winterflood Securities Limited - Electronic Platform

Winterflood Securities Limited - Electronic Platform is the electronic market-making and liquidity-provision arm of Winterflood Securities, a UK equity market maker that operates as a division of Marex. The platform is dedicated to making two-way prices in a wide range of instruments even in extreme adverse market conditions, connecting a diverse client network that spans institutional investors, retail brokers, wealth managers, platforms, share plan administrators, registrars, hedge funds and third-party providers. Its stated purpose is to deliver cost-effective, flexible execution services across the entire trade lifecycle, from pre-trade through to settlement. The electronic platform covers equities (pan-European and North American), investment trusts, gilts and bonds, and exchange traded products (ETPs). According to Winterflood's own published figures for FY 2025 and proprietary data, the business serves over 400 clients, including more than 250 institutional clients and more than 200 retail brokers, and handles an average of 50,000 trades per day. It connects to 70+ trading venues, offers access to over 19,000 tradable instruments (with a separate figure of over 18,300 tradable instruments cited for the platform's coverage), and trades across 20 countries. Winterflood reports over 349 billion shares traded in the UK and a team of 70+ experienced traders supported by 89 technology-focused people. As a registered market maker operating an electronic platform, Winterflood provides liquidity that helps retail brokers, platforms and institutional clients execute orders efficiently. The firm emphasises technology-led innovation, client-centric service and long-term trusted relationships, and it has articulated its culture and conduct expectations in a code called "Our Way." Recent activity highlighted by the company includes bringing UK retail investors into the Jersey Mike's IPO and a partnership with Curation to strengthen retail investor engagement, illustrating its role in bridging global capital markets and retail distribution. Because Winterflood Securities is a division of Marex, the electronic platform sits within a larger, publicly listed commodities and financial services group. The platform itself is not a separately listed entity; it is a business line and registered market-making operation within Winterflood Securities Limited.

Winterflood Securities is a UK-based equity market maker that has grown into a leading liquidity provider for retail brokers, platforms and institutional investors. The electronic platform is the technology-driven core of that business, delivering two-way prices and execution services across a broad range of instruments. The company operates as a division of Marex, a publicly listed financial services group, and its platform is registered as a market maker. Over time, Winterflood has expanded its coverage from UK equities into pan-European and North American equities, investment trusts, gilts and bonds, and exchange traded products. Its electronic platform now connects to more than 70 trading venues and offers access to over 18,300 tradable instruments, with trading across 20 countries. The firm reports serving over 400 clients, including more than 250 institutional clients and more than 200 retail brokers, and handling an average of 50,000 trades per day. It also reports over 349 billion shares traded in the UK, supported by 70+ experienced traders and 89 technology-focused people. Winterflood emphasises technology-led innovation and client-centric service, aiming to provide flexible, high-quality execution from pre-trade through settlement. Its culture and conduct expectations are codified in "Our Way," which guides recruitment, development and reward. Recent initiatives include bringing UK retail investors into the Jersey Mike's IPO and partnering with Curation to strengthen retail investor engagement, reflecting its role in connecting global capital markets with retail distribution networks.

• Winterflood operates as a division of Marex, providing electronic market making and liquidity.

• Platform reports over 400 clients, 50,000 average daily trades, 70+ trading venues and over 19,000 tradable instruments (FY 2025 figures).

• Winterflood brings UK retail investors into the Jersey Mike's IPO (July 2026).

• Winterflood and Curation partner to strengthen retail investor engagement (July 2026).

A leading equity market maker and liquidity provider offering transparent, technology-led, client-centric execution across the full trade lifecycle, operating as a division of Marex.

• Electronic market-making platform

  Provides two-way prices and liquidity in equities, investment trusts, gilts, bonds and ETPs.

• Execution services

  Flexible execution from pre-trade through settlement for institutional and retail clients.

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