Innovating Global Trading
We provide liquidity to ensure institutions and retail investors can trade what they want, when they want—in all market conditions around the world.
Only at Citadel Securities
We constantly look to improve how markets work. Determined to drive change, we envision and execute a range of ambitious initiatives that could only happen here.
MEMX: Building an Equities
Exchange from the Ground Up
As we assessed public exchanges in the U.S., we asked: How can we create an exchange today that leverages the most modern technology available? We believed a new kind of exchange could increase competition, drive operational transparency and enable lower costs for investors. We were confident we could create it.
Convening leading financial services firms, including major banks, broker-dealers and even other market makers, we led the creation of an exchange founded and run by its members. An all-electronic exchange leveraging industry-leading technology, MEMX enables its members to provide even more liquidity to the market.
In just over two years, MEMX went from being an idea on a whiteboard to the fastest growing US equities exchange. Today, MEMX is at 6.5% market share excluding TRF, with an average daily notional volume of $18.7 billion in May 2022—up from $6.7 billion in May 2021.
Expertise Across
Asset Classes
We meet clients’ liquidity needs across a range of asset classes. For more than two decades we’ve been a trusted partner to the world’s most important financial institutions, from public pension programs to central banks and broker-dealers.
Equities
The largest provider of equities liquidity across global capital markets.
Options
The largest U.S. options market maker for all major options classes.
Fixed Income & FX
Firm prices, fast quotes and consistent liquidity in fixed income and currencies in over 50 markets.
Our Competitive
Advantage
Exceptional Talent
The brightest minds in finance, mathematics and technology solve consequential problems here. Our people drive operational excellence and help create more dependable global markets.
Industry-Leading Analytics
We build and deploy powerful, industry-leading predictive models. We continuously price hundreds of thousands of securities simultaneously across markets and geographies, while effectively absorbing risk on behalf of our clients.
Scalable, Resilient Platform
Our platform is built to scale, meeting client needs with virtually unmatched speed. We pay special attention to systems design, so we can manage and minimize complexity and adapt to evolving market dynamics.
What Is a
Market Maker?
One of the functions we perform is market making. A market maker participates in the market at all times, providing liquidity to investors by buying securities from sellers and selling securities to buyers.
We innovate and compete with other market makers to deliver better outcomes for investors. By providing dependable liquidity, market makers build confidence in market integrity.