About a-team Marketing Services
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

Upcoming Webinar: From Monolith to Modular: Architecting Equity Trading Platforms for 24/5 and Beyond

Date: 14 October 2026 Time: 10:00am ET / 3:00pm London / 4:00pm CET Duration: 50 minutes Equities markets are entering a more distributed, always-on phase. Liquidity is fragmenting across venues and geographies, trading hours are extending toward 24/5 and beyond, and market data volumes, investor expectations and competitive pressure are all rising at once. Many...

BLOG

FCA Proposes FRAME Reporting Reform Within £128m Asset Management Savings Package

The Financial Conduct Authority (FCA) has proposed three reforms to UK asset management rules that it estimates would save firms £128 million a year. New fund reporting requirements account for most of the projected benefit, although their introduction would require technology and change projects across a sector managing £16.5 trillion. Fund Reporting for Asset Management...

EVENT

AI in Data Management Summit New York City

Following the success of the 15th Data Management Summit NYC, A-Team Group are excited to announce our new event: AI in Data Management Summit NYC!

GUIDE

Regulatory Data Handbook 2026 – Fourteenth Edition

Welcome to the fourteenth edition of A-Team Group’s Regulatory Data Handbook. Supervisors increasingly expect firms to demonstrate which rules apply, which data supports each obligation, who owns the control and how exceptions are identified and resolved. Policies and implementation programmes must now be supported by records that can withstand regulatory scrutiny. This edition examines material...