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STX Fixed Income

Dutch-based sales trading firm specializing in illiquid debt, credit opportunities and fixed-income liquidity solutions across primary, secondary and money markets.

Last updated September 29, 2026

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Overview

STX Fixed Income, which operates under the brand SFI Markets, is a Dutch-based sales trading firm founded in 2013 and headquartered in Amsterdam. The company positions itself as a specialist in illiquid debt and unique credit opportunities, serving borrowers and lenders across primary markets, secondary trading, market making and money markets. Its stated mission is to go beyond traditional liquidity services by delivering bespoke, agile and forward-thinking fixed-income solutions tailored to clients' financial objectives. The firm's product range spans bonds, loans and cash management deals, with capabilities that include overnight liquidity through to 50-year tenors, bullet and amortizing structures, and instruments such as deposits, commercial paper, NSV, SSD, EMTN and stand-alone bonds. Capital deployment ranges from EUR 50 million to EUR 500 million, catering to both rated and non-rated entities. STX Fixed Income emphasizes unsecured and covenant-light solutions, providing simplified access to funding without excessive restrictions. STX Fixed Income serves a diverse client base that includes regional governments, public utilities, educational institutions and social housing organizations, alongside corporate borrowers seeking customized funding strategies. The company works closely with top European institutional investors to provide competitive pricing and customized solutions. Its international team operates across Europe, the Americas, Africa, the Middle East and Asia, with country teams active in primary, secondary and money markets in their respective regions. The company describes its core values as Dedication, Performance, Client Focus and Work Hard Play Hard. Its service model combines structuring and securing optimal funding, navigating market volatility and optimizing portfolio returns. STX Fixed Income presents itself as a bridge between ambitious lenders and exceptional borrowers, offering seamless, tailored solutions that meet unique financial needs. Since its founding, STX Fixed Income has expanded its global reach, particularly between 2019 and 2020, when it broadened operations across multiple continents. In 2021 and 2022, the firm focused on strengthening its expertise and diversifying its offerings. The company remains privately held and continues to operate from its Amsterdam headquarters, serving clients and counterparties worldwide.

History

STX Fixed Income, operating as SFI Markets, was founded in 2013 with a vision to specialize in illiquid debt and unique credit opportunities. The company established its footprint in the financial sector as a Dutch-based sales trading firm headquartered in Amsterdam. From its inception, the firm focused on serving clients and counterparties across the world, working out of its Amsterdam headquarters with country teams active in primary, secondary and money markets in their respective countries. The company's early years were marked by a focus on building deep market and product knowledge in illiquid debt and credit opportunities. It developed expertise across bonds, loans and cash management deals, and expanded its product range to include instruments such as deposits, commercial paper, NSV, SSD, EMTN and stand-alone bonds. The firm also built capabilities in structuring bullet and amortizing structures with tenors ranging from overnight liquidity to 50 years. Between 2019 and 2020, STX Fixed Income broadened its operations significantly, expanding its global reach to cover Europe, the Americas, Africa, the Middle East and Asia. This period solidified its position as a trusted international player in the fixed-income market. The expansion allowed the firm to serve a more diverse client base and to leverage its expertise across multiple regions. In 2021 and 2022, the company focused on strengthening its expertise and diversifying its offerings. It continued to develop its service model across primary markets and DCM, secondary trading, market making and money markets. The firm also deepened its relationships with top European institutional investors, enabling it to provide competitive pricing and customized solutions to clients. Throughout its history, STX Fixed Income has emphasized its core values of Dedication, Performance, Client Focus and Work Hard Play Hard. The company has positioned itself as a bridge between ambitious lenders and exceptional borrowers, offering tailored solutions that meet unique financial needs. It has also developed specialized financing options for public sector entities, including regional governments, public utilities, educational institutions and social housing organizations. As of its latest public communications, STX Fixed Income remains a privately held company operating from its Amsterdam headquarters. It continues to serve clients and counterparties worldwide, with a focus on illiquid debt and credit opportunities across primary, secondary and money markets.

  • 2022

    Continued strengthening of expertise and diversification of services.

  • 2021

    Company focuses on strengthening expertise and diversifying offerings.

  • 2020

    Global expansion continues, solidifying position as a trusted international player.

  • 2019

    Company begins broadening operations globally, expanding reach across Europe, the Americas, Africa, the Middle East and Asia.

  • 2013

    STX Fixed Income (SFI Markets) founded in Amsterdam, Netherlands.

Products and positioning

Specialist in illiquid debt and unique credit opportunities, providing bespoke fixed-income and liquidity solutions with global reach and local expertise.

  • Bonds

    Standardized and stand-alone bonds, including EMTN and NSV formats.

  • Loans

    Standardized loans and tailored debt structures.

  • Cash deposits

    Cash management deals and deposit solutions.

  • Commercial paper

    Short-term unsecured debt instruments.

  • SSD

    Structured deposit instrument.

  • EMTN

    Euro Medium Term Note programme.

Sources5 sources

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