Improving Trust

All-in-one compliance, reporting, and analytics.

S3 is a full service compliance and trade analytics software company providing simple and elegant solutions to address client needs for regulatory reporting, trade surveillance, and best execution analytics, across multiple asset classes. S3’s robust product suite offers exceptional trading analytics technology, and all-in-one regulatory reporting solutions for U.S. and International financial markets.

Who We Serve

S3 products are used today by many of the world’s largest financial institutions including retail broker-dealers, exchanges, bulge bracket and retail banks, as well as mutual funds.

Our Offering

S3 provides simple and elegant solutions to address our clients’ regulatory needs in trade surveillance, execution quality, and reporting, across multiple asset classes,  all in one location. 

Regulatory Reporting Suite

S3’s all-in-one compliance solutions are designed to increase efficiency and ease in meeting regulatory guidelines for trading practices.

Best Execution Trade Analytics

S3 provides exemplary execution analysis through technical innovation

Trade Surveillance

The information collected by S3 provides insights into where orders are being sent so that any potential conflicts or missteps can be illuminated. Additionally, S3 provides tools to track and report fees and rebates.

Products & Services

SEC Rule 606 Reporting

SEC Rule 606 ReportingEasily and effectively comply with the 2019 SEC 606 order routing disclosure regulations. The Securities and Exchange Commission (“SEC”) announced updates to Rule 606 in an effort to ensure that broker-dealers are acting in the best interest of...

Best Execution Analytics

Best Execution Analytics Reporting and trade exception management solutions that optimize trade execution, streamline the search for price improvement and simplify regulatory compliance. S3’s proprietary Best Execution Analytics software provides on-the-spot reporting...

Trade Surveillance Suite

Trade Surveillance Suite Monitor trading for a variety of restricted behaviors across multiple asset classes, including market manipulation and other trade-based violations. S3’s Trade Surveillance Suite (TSS) simplifies monitoring for a variety of restricted...

Regulatory Reporting Suite

Advanced analytics tools for SEC Rules 605, 606, 611 and Regulation SHO. Read more about S3's Regulatory Reporting Suite

Transaction Cost Analysis (TCA)

Transaction Cost Analysis (TCA)   Advanced trading analytics functionality, order execution transparency and Transaction Cost Analysis (TCA) specifically for institutional clients. S3’s Transaction Cost Analysis Suite offers advanced trading analytics...

Canadian Best Execution Quality Suite

Given varying conditions between the U.S. and Canadian markets, execution considerations become more complicated and change in real time for dual-listed stocks.  S3’s Canadian Best Execution Quality Suite keeps traders informed of these shifting circumstances by...

Fixed Income Execution Quality Suite

Order execution transparency and compliance tools for corporate, municipal, and TRACE eligible agency bond trades. Read More About S3's Fixed Income Execution Quality Suite.

Complex Option Spread Best Execution

S3's Execution Quality for Complex Spreads allows clients to determine and prove how well their complex spreads are being executed. By developing an execution quality system that understands complex orders, S3 is able to show the execution quality of the complete...

Options TCA

Options TCA Unmatched Transaction Cost Analysis and Best Execution Insight for the Options Market S3’s proprietary Options TCA platform enables users to better identify, and achieve, best execution and price improvement on their options orders by analyzing a multitude...

Bespoke Solutions

S3 is a software company, and got its start in enterprise software. Our software engineers have extensive experience implementing and integrating with complex products, including everything from OMS and EMS platforms to automated high speed trading systems. We can...


S3 Certified for CAT Production by FINRA

Press Release FINRA grants S3 CAT Reporting Agent status augmenting S3’s CAT reporting technology already utilized by several major financial institutions.   Austin, TX, 27 April 2020 S3, a leading provider of all-in-one compliance solutions, announced today that...

Traders Magazine: S3’s Davies on SEC Rule 606 Delay

John D'Antona, Editor of Traders Magazine speaks exclusively to S3 CEO Mark Davies on the delay of SEC Rule 606 by John D'Antona 1 April 2020 The current COVID-19 pandemic has forced a change in the amended Rule 606 timeframe. Last week the Securities and Exchange...

Finops Report: New Trade Execution Transparency Tests Data Exchange

S3 CEO Mark Davies discusses the new SEC Rule 606 reporting format and what asset managers can glean from these reports by Chris Kentouris 18 March 2020 Complying with a new US regulatory requirement for brokers to give investors more information on trade routing...

S3 Offers SEC CAT Solution Ahead of April Reporting Deadline

A-Team Insight features S3's all-in-once compliance offering, including S3's latest product launch, CAT Reporting by Sarah Underwood 04 February 2020   As reporting to the SEC Consolidated Audit Trail (CAT) fast approaches, with large industry participants and...

S3 Launches CAT Reporting Solution

Press Release S3 launches reporting technology for SEC’s Consolidated Audit Trail System (CAT), major exchange to utilize for their brokers.   Austin, Texas, 15 January 2020 – S3, a leading provider of regulatory reporting technology, trade surveillance, and...

Finops Report: Regulatory Ops 2020: Handling Tower of Acronyms

S3 CEO Mark Davies offers his expertise on SEC Rule 606 in the latest Finops Report article by Chris Kentouris 09 January 2020 Compliance, operations, and IT managers will be teaming up in newly created regulatory operations departments to do data aggregation,...