Chris Concannon
Chief Executive Officer and Interim Chief Financial Officer at MarketAxess
Good morning, and thank you for joining us to review our first quarter results. Turning to slide three of my strategic update. We delivered 4% total revenue growth, including the benefit of our Pragma acquisition and earnings per share was $1.92. While we are not happy with recent trends in our estimated market share in U.S. credit, we recognize the importance of being equally strong in the faster-growing areas of the market and we have a quick strategy to return to higher levels of share growth. We are attacking these faster-growing areas of the market while maintaining and building on our leadership in the institutional investor RFQ market. Our strength in this segment of the market is underpinned by our leading global client franchise and the largest single source of liquidity in the credit markets, Open Trading. First, in the quarter, our global client franchise continued to expand. We had a record 2,100 active client firms. Next, we delivered record commission revenues across several credit product areas. U.S. high-grade commission revenue grew 8%, and we delivered record levels of commission revenue in emerging markets, Eurobonds and municipal bonds, helping to offset the impact of lower U.S. high-yield activity. The benefits of our geographic and product diversification continue to pay dividends. Non-U.S. credit revenue was a record $92 million in the quarter, representing a record 44% of total revenue. Last, we continue to be disciplined around our expense management with total operating expenses increasing only 9%, including the impact of Pragma. We delivered these results against a market backdrop of historically low levels of credit spread volatility, which has created the ideal conditions for growth of portfolio trading and dealer-centered protocols.
These low levels of volatility have also impacted ETF market participants and hedge funds, decreasing activity in our U.S. high-yield business. We believe, however, that our estimated share will recover with more normal levels of spread volatility due to the diversified liquidity on our platform. We were pleased to see an improvement in estimated high-yield share in the back half of April. We are encouraged by the strong new issuance calendar to the start of the year as well as the increase in trading velocity. Strong new issuance is an indicator of healthy growth in our market and increased trading velocity means that dealers are trading more with much smaller balance sheets. This trend should only continue with significantly higher bond yields making fixed income a very attractive asset class. This is a key attribute of our market today. All our clients need to do more with less, and we are very well positioned to address this need. Slide four illustrates how portfolio trading and dealer-initiated trading significantly expanded the overall market in April. Since 2019, portfolio trading and dealer-initiated flow have grown at four-year CAGRs of 38% and 10%, respectively, compared to 2% for client initiated flow. The growth of these segments is closely linked because dealers typically recycle the risk from a portfolio trade in the interdealer market. For portfolio trading, we have made substantial investments in our PT solution and the share gains we saw at the end of April indicate that we have designed a very competitive trading solution for our clients. We will continue to rapidly deploy enhancements to our platform as we are still in the early stages of PT innovation. For dealer-initiated flow, we are now delivering the same trading automation tools to dealers seeking liquidity that have been rapidly growing with investor clients. These tools improve dealers' trading efficiency and help solve their need to rapidly exit inventory risk.
Approximately 30% of the liquidity we provide to dealers comes from our investor client firms. Accompanying the electronification of larger-sized portfolio trades is the explosion in ticket count as shown on the right-hand side of this slide. X-Pro, our new platform designed to make trading more efficient, is now handling 55% of U.S. credit trade count for our 22 largest clients. Slide five illustrates key trends in portfolio trading. The growth of PT is a very important step in the evolution of the market. Portfolio trading is a protocol of immediacy, which has helped accelerate the electronification of larger-size trades, representing approximately 10% of the high-grade and high-yield TRACE market in April. Portfolio trading has also allowed traders to do more, more efficiently and with a streamlined workflow. The impressive growth of portfolio trading shows us the sizable demand our clients have for immediacy and efficiency, with the average notional per line item of a PT trending lower. We believe we must address that demand for immediacy and efficiency in all products and across all types of market environments. This is a great trend for the market overall, and it is a strong indicator of future e-trading demand for trades of all sizes. But we do believe that historically low credit spread volatility has created very supportive market conditions for the recent growth in portfolio trading. Slide six frames the U.S. high-grade market opportunity. While portfolio trading and dealer-initiated trading have been growing faster, we are also continuing our investments in higher-margin, high-quality areas of the market. Our launch of credit algorithms and block training solutions on X-Pro are targeting the more challenging parts of the market that have not migrated to electronic trading solutions.
The client-initiated segment of the market excluding PT is an estimated $620 million revenue opportunity, representing approximately 58% of the total estimated e-trading opportunity in U.S. high grade. And as trade sizes greater than $5 million are broken down into smaller trades, we believe that the higher fee per million, combined with an increase in velocity can drive this revenue opportunity significantly higher. We believe that the market opportunity over the long term is actually moving into our sweet spot, not away from it. In summary, we are attacking the higher growth areas like portfolio trading and dealer-initiated execution while we are keeping our focus on building solutions for the largest, most attractive parts of the credit markets. Slide seven, we highlight the client toolkit we are building for the future. MarketAxess is a global network with a privileged position in the credit markets. The unique tools that we are building for traders are being delivered by X-Pro, getting traders a portal to access our powerful data and analytics, our automation and algorithmic trading tools and the single largest source of liquidity in the credit markets. We are an increasingly integrated ecosystem focused on making life easier for traders while solving for our clients' need to do more with less.
Now let me turn the call over to Rich to provide you with an update on our markets.