OneChronos

OneChronos

OneChronos is a venture-backed fintech company based in New York, specializing in advanced electronic trading systems and operating a U.S. equities Alternative Trading System (ATS) that employs Nobel prize-winning auction techniques and AI to enhance market operations.

Company Overview

OneChronos is an independent, venture-backed fintech company operating out of New York, NY, USA. With a team of 20, it focuses on the banking and exchange sub-sector. OneChronos specializes in leveraging advanced technological paradigms, including Nobel prize-winning combinatorial auction techniques and artificial intelligence, to innovate the next generation of electronic trading.

Alternative Trading System (ATS)

OneChronos operates a U.S. equities Alternative Trading System (ATS) designed to bridge the gap between traditional trading venues and modern trading needs. Utilizing a Smart Market approach, the platform employs mathematical optimization for order matching, which aims to enhance price improvement, liquidity, and fairness. The ATS supports NMS securities, including single stocks, ETFs, and ADRs, and conducts periodic auctions approximately every 100 milliseconds.

Technology and Matching Engine

The OneChronos matching engine is located at Equinix NY5 and does not route orders externally. It constructs a view of the National Best Bid and Offer (NBBO) using data from SIP (NYSE CTA feeds & Nasdaq UTP) and supports a variety of order types, including Limit Orders, Peg Orders, and Expressive Orders. The platform enables Expressive Bidding, allowing participants to specify detailed execution instructions that enhance trading algorithms.

Connectivity and Market Hours

Subscribers access OneChronos via a standard FIX (4.2) connection, either through cross-connect or extranet. Standard market hours (Eastern Time) are as follows: 8:00am for initiating FIX connections/sessions, 9:15am for beginning to accept orders, 9:30am for order executions, 4:00pm for stopping order executions, and 5:00pm for all FIX sessions to be disconnected. OneChronos allows brokers and their clients to enhance their existing algorithms through this simple connection mechanism.

Regulatory Compliance

OneChronos Markets LLC is a wholly-owned broker-dealer subsidiary of OCX Group Inc. The company is a member of FINRA/SIPC and adheres to regulatory standards. A copy of OneChronos Markets LLC’s ATS-N is available on the SEC website. Executions are printed to the FINRA NYSE Trade Reporting Facility (TRF), and the company publicly disseminates the execution price and total volume matched for each security in each auction. OneChronos maintains a fully non-displayed order book and does not provide any data feeds.

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