About a-team Marketing Services
The knowledge platform for the financial technology industry
The knowledge platform for the financial technology industry

A-Team Insight Blogs

QuantHouse adds Jane Street Financial’s SI to API Ecosystem

Subscribe to our newsletter

QuantHouse continues to build out its qh API Ecosystem with the addition of Jane Street Financial’s systematic internaliser (SI). Through its SI, Jane Street offers liquidity for more than 2,000 single stocks from the Cboe Europe universe, with a focus on small and mid-cap names.

Jane Street adds to SIs already connected into the qh API Ecosystem, including Sun Trading and Virtu Financial, and its SI can be accessed via a single API built and maintained by QuantHouse.

Slawomir Rzeszotko, head of institutional sales and trading, Europe at Jane Street, notes that the qh API Ecosystem link will offer clients seamless and cost-efficient connectivity to the company’s liquidity through the QuantHouse QuantFeed and QuantLink mechanisms. He adds: “As MiFID II has brought in sweeping changes industry-wide, the continued growth in our trading volumes is a testament to the execution quality offered by our SI.”

Reflecting the changes made by MiFID II, Stephane Leroy, co-founder and chief revenue officer at QuantHouse, says: “MiFID II has changed the liquidity landscape dramatically. To make it easier for clients to access this fragmented liquidity, QuantHouse offers simple, easy access through one API to the Jane Street SI, regardless of the trading system or what country that client operates in.”

The QuantHouse API Ecosystem is a global initiative with the objective to provide a framework within which capital markets participants can quickly and easily gain access to multiple trading venues, technologies or applications through standard APIs. It houses buy- and sell-side participants, exchanges, prime brokers, trading venues, hedge funds, market makers and other financial services partners and vendors.

Subscribe to our newsletter

Related content

WEBINAR

Recorded Webinar: Data platform modernisation: Best practice approaches for unifying data, real time data and automated processing

Financial institutions are evolving their data platform modernisation programmes, moving beyond data-for-cloud capabilities and increasingly towards artificial intelligence-readiness. This has shifted the data management focus in the direction of data unification, real-time delivery and automated governance. The drivers of this transition are improved operational efficiency as manual processes are replaced by faster, more accurate automated...

BLOG

ESMA’s “Data Day” and Regulatory Digitalisation

When ESMA convened its first ‘Data Day’ on 2 December 2025, the agenda title – “Burden reduction in the digitalisation era” – captured a shift that has been building across Europe’s regulatory landscape for several years. While markets been advancing shared data models and machine-executable reporting logic through initiatives such as the Common Domain Model...

EVENT

TEST Event page 2

Now in its 15th year the TradingTech Summit London brings together the European trading technology capital markets industry and examines the latest changes and innovations in trading technology and explores how technology is being deployed to create an edge in sell side and buy side capital markets financial institutions.

GUIDE

Preparing For Primetime – How to Benefit from the Global LEI

They say time flies when you’re enjoying yourself, and so it seems the industry have been having a blast with its preparations for the introduction of the global legal entity identifier (LEI) next month. But now it’s time to get serious. To date, much of the industry debate has centred on the identifier itself: its...