Doug Peterson
President, CEO & Executive Director at S&P Global
Thank you, Mark. S&P Global delivered an incredible first half in 2024 as the second quarter saw accelerated revenue growth, significant margin expansion and the highest quarterly adjusted EPS in our company's history. Total revenue increased 16%, excluding the divestiture of Engineering Solutions. Transaction revenue in our Ratings division continues to drive significant outperformance at more than 60% growth. But revenue from all our subscription products across the company also increased 8% year-over-year in the second quarter, despite some of the market headwinds that are common across our industry this year.
We delivered 450 basis points of margin expansion year-over-year and 30% growth in EPS as we captured market demand and contained our expense growth. As you saw last month, we also announced our CEO succession plan, which I'll discuss in a moment.
We've been cultivating more than just our leaders at S&P Global, and we're pleased with the product innovation coming to the market in the second quarter. The June release of Cap IQ Pro included significant enhancements, and we launched new benchmarks in Commodity Insights. We continue to accelerate our deployment of generative Al and launched new capabilities, both at the division and enterprise level. We also continue to optimize our portfolio of businesses and products with Visible Alpha closing in the second quarter and the recent signing of an agreement to divest Fincentric, which we expect to close in the third quarter.
We're excited that we get to cover key developments in each of our 5 strategic pillars this quarter, beginning with our customers. S&P Global rated more than $1 trillion of billed issuance in the second quarter. Growth was diversified across public and private markets, as private market participants increasingly turn to S&P Global for expertise in assessing credit risk, Revenue from rating services in the private markets increased more than 70% year-over-year in the second quarter. We continue to create new products from the combined data sets and solutions of S&P Global and IHS Markit to create incremental value for our customers.
In the second quarter, we achieved nearly $200 million of annualized run rate revenue synergies. As Chris will discuss in a moment, this puts us ahead of the pace to achieve the $350 million in revenue synergies we're targeting in 2026. It's remarkable that we're able to deliver these strong results, despite the well-known market headwinds that continue to impact pockets of our business. Our diverse customer base and broad product portfolio provide for more stable financial performance for the company overall as headwinds can often be offset by tailwinds.
As an example, while renewal rates were slightly lower than last year in Market Intelligence this quarter, renewal rates were slightly higher than last year in Commodity Insights. These market dynamics are not unexpected, and the financial impact was largely included in our initial guidance. Despite macroeconomic cyclicality, we continue to find ways to help our customers achieve their goals using our differentiated data and product offerings. This ability to align our product innovation and investment with customer needs was further demonstrated in the second quarter by the acceleration in revenue growth from our Private Market Solutions and our Sustainability & Energy Transition offerings.
Turning back to billed issuance. It increased 54% year-over-year in the second quarter. We continue to see tight credit spreads contributing to favorable market conditions. We also saw modest improvement in some of the important macroeconomic indicators, particularly in North America, that have lent strength to the issuance environment. We continue to see particular strength in bank loans and structured finance, along with robust growth in high-yield investment-grade bonds.
Refinancing activity was very strong in the quarter as we saw a pull forward of issuance from investment-grade issuers refinancing 2024 maturities as well as speculative grade issuers refinancing 2024 and future year maturities. This leaves some uncertainty around the back half as we wait to see how much of the out -- year refinancings get pulled into 2024. This continues to inform our view that the second half will be softer than the first half in terms of billed issuance and transaction revenue in our Ratings business. With the timing and likelihood of any rate cuts in the U.S. market still uncertain, our base case still assumes a modest year-over-year decline in issuance in the fourth quarter.
Turning to Vitality. Newer enhanced products generated $375 million in the second quarter. This represents 11% of our total revenue and an improvement from the 10% we reported last quarter. Key contributors to our Vitality Index are unchanged from last quarter as we see strong demand for CARFAX listings and the CARFAX Banking & Insurance Group. We also see strong growth in energy transition and climate products from our Commodity Insights division and sustainable bonds from Ratings.
As you'll recall from last quarter, key contributors from our pricing valuations and reference data as well as several thematic-and factor-based indices matured out of the Vitality Index at the end of the year. We're encouraged by the continued acceleration of the pace of innovation of S&P Global and look forward to maintaining our Vitality Index at or above the 10% target. As we look to examples of that innovation, a common thread running through many of the products we're bringing to market is our enterprise expertise in generative Al.
In the second quarter, we launched ChatAl on Platts Connect. Launched as a new platform combining Platts Dimensions Pro with IHS Connect, the Platts Connect platform provides access to a truly massive amount of data, research and insights to power the global commodity markets. With the depth and breadth of information in the platform, we knew users would need an intuitive way to navigate and find the information that would be critical to their daily workflows. ChatAl is a powerful customer tool developed through a partnership of Kensho and Commodity Insights that uses generative Al models to provide real-time responses to conversational user queries to help them quickly find the necessary data to make informed, faster decisions.
In addition to this Al-powered interface, Commodity Insights continues to bring new benchmark price assessments to market. Our Platts team introduced 5 daily price assessments for beef and 4 daily price assessments for poultry as well as a new report with up-to-date coverage of the proteins market. These continue to broaden and strengthen our position in agriculture commodities. We also continue to scale new functionality in our differentiated energy transition offerings. We significantly enhanced our global integrated energy model in the second quarter, which now enables modeling and scenario building for energy demand in over 140 countries using deep datasets going back more than 30 years.
With our enterprise focus on artificial intelligence, we've continued to develop internal tools, including new functionality in the S&P Spark Assist platform we introduced earlier this year. Approximately 14,000 of our people are using Spark Assist internally after just a few short months. As we shared with you last quarter, this platform is designed to be cost effective, vendor-agnostic, highly scalable and secure by design. By encouraging collaboration across the enterprise, we're able to quickly iterate on time-saving use cases and share those developments across the company. We're already seeing users leverage S&P Spark Assist to optimize code, rewrite configuration files for software migrations and summarize complex documents. We've also used it to aggregate and digest feedback and ideas that we received through our employee engagement surveys and town halls, empowering leadership to more effectively act on what matters the most to our people.
We believe this crowd-sourced approach to developing tools shortens the time to discover and develop new applications using gen Al models. Leveraging LLMs from multiple sources allows us to benefit from the rapid innovation taking place across the technology ecosystem without being locked into a single vendor. Lastly, the June release of Cap IQ Pro brought powerful enhancements to the platform that we believe will strengthen our competitive position and create meaningful value for our customers. We fully integrated the fixed income data from IHS Markit, which brings data more than 19 million government agency and corporate fixed income securities and makes it readily available through the Cap IQ platform. This was a tremendous undertaking made possible through the merger that will benefit our existing customers and help potential customers more easily see the incredible value in Cap IQ Pro. The June release also included a complete reimagining of the charting and visualization capabilities within Cap IQ Pro, deploying the technology and expertise that came to us through the ChartIQ acquisition.
Back to the theme of generative Al. We also introduced transcript summarization within Cap IQ Pro. This new tool was built organically and not only provides a quick summary of earnings calls, it also organizes topics and sentiment and empowers the user to immediately click through and find the direct quotes behind the summaries. And it's built on a foundation of Scribe developed by Kensho 4 years ago.
I want to take a moment to discuss an important acquisition that closed in the second quarter. Visible Alpha is well known and highly respected among both our customers and our investors, and we're excited to see the progress the Market Intelligence team has already made since closing the deal in May. Visible Alpha compiles highly detailed financial models via direct feed from over 200 contributing brokers. With over 6,000 contributing analysts, including most of the analysts joining us on this call, Visible Alpha has the most detailed and comprehensive consensus estimates available anywhere in the world. We frequently hear from customers that they could not do their jobs without it.
S&P Global's position as a trusted partner across the financial markets is opening doors for Visible Alpha and private equity, banking and consulting and driving further penetration in asset management and research. Leveraging the strength of S&P Global's relationships, brand and commercial teams, we've already seen a 5% increase in the number of contributing brokers in just the last 3 months. In addition, we've generated over 150 sales leads and closed 10 deals already. We see numerous opportunities to leverage the Visible Alpha platform in conjunction with the differentiated datasets throughout S&P Global to create unique deep sector content. We look forward to sharing new developments in the coming quarters.
Now turning to a very exciting announcement we made in the second quarter that fittingly comes under our 4 strategic pillar, Lead and Inspire. In June, we announced that I will be retiring from my role as President and CEO of S&P Global effective November 1. Martina Cheung, the President of Ratings and Sponsor of Sustainable1, will become the 11th CEO of S&P Global since we were listed on the New York Stock Exchange over 90 years ago. We are very pleased to see our succession plan work the way it was designed, with development of strong internal leaders resulting in a unanimous decision from our Board of Directors.
I'm focused on delivering strong results over the next few months as I work with Martina on a comprehensive transition plan before she takes over November. As you might have seen, I'll stay on the Board until the next shareholders meeting and on as an adviser until the end of 2025. Martina has already joined the Board of Directors and is working hard to get ready for November. We will have more to say on the transition next quarter, but it's been wonderful to see the outpouring of support and appreciation for Martina from customers, employees and shareholders.
Turning to our financial results. With strong growth across every division, we continue to meet increasing market demand, while maintaining expense discipline. We saw accelerating revenue growth in the quarter. And on a trailing 12-month basis, we have expanded our operating margin by 300 basis points. Now let me turn to Chris Craig, our interim CFO, to review the financial results.
Chris, over to you.