LSEG to Buy Octus for $3.54B in Its Biggest Deal Since Refinitiv

What Octus is

Octus, formerly known as Reorg, is a credit intelligence, data, and workflows provider founded in 2013 by Kent Collier and headquartered in New York. It covers the hardest-to-see corners of the credit market: private, illiquid, and distressed credit, from leveraged loans to insolvencies. The company has more than 900 employees, 750 customers, and 40,000 individual users across buy-side firms, investment banks, law firms, and advisory shops. Expected 2026 revenue tops $300M with double-digit growth and roughly 40% adjusted EBITDA margin. That is a very healthy business, and it is the target of the LSEG Octus acquisition.

The LSEG Octus acquisition, announced on October 22, will see the London Stock Exchange Group acquire Octus from Permira-advised funds and Octus management for $3.54B in cash. The deal is expected to close in 2027, and Collier will keep running the business inside LSEG's data and analytics division.

Why LSEG is paying up

This is LSEG's biggest acquisition since the $27B Refinitiv purchase in 2019. The strategic logic is straightforward: credit markets are where the growth is, and private credit is where the data is scarcest. LSEG says the deal will "transform its presence in credit and private market data," and alongside Tradeweb's acquisition of Trumid, it positions the group as a global leader in fixed income data and trading across public and private credit.

Citi's take is worth quoting: Octus's client base is 80% investment managers and law firms with 70% based in the US, which complements LSEG's bank-heavy, Europe-skewed base. That is a cross-selling story. And the data itself is largely private, which makes it hard to replicate, which is exactly the kind of moat that justifies a premium.

There is also a defensive angle. LSEG has spent roughly 15 months defending its data business against AI disruption, in UBS's phrasing. Buying a fast-growing, high-margin credit data business with proprietary private data is a way to go on offense. UBS called the strategic logic sound and suggested the shift to an offensive posture could be positive for the shares.

The LSEG Octus acquisition: market reaction

The market liked it. LSEG shares rose about 3.8% to 91.22 pounds on Thursday, and the company paired the announcement with strong Q3 results: gross profit up 9.5% to 2.2B pounds, total income including recoveries up 8.4% to 2.50B pounds, led by the markets division.

Full-year guidance went up across the board: organic constant-currency total income growth of at least 8.0% (previously 7.0 to 7.5%), EBITDA margin expansion of 100 to 120 basis points, and equity free cash flow of at least 2.8B pounds (previously 2.7B). CEO David Schwimmer said LSEG is on track for its strongest annual growth since 2018, and cited work with financial institutions integrating AI across their organizations.

The activist elephant in the room

Elliott Management disclosed a stake in LSEG in February 2026 and has been pushing for improved performance. Big deals announced under activist pressure always invite the same question: is this strategy, or is this a headline to quiet the agitators?

The honest answer is that it can be both. The strategic case for Octus is genuinely strong: high margins, proprietary data, complementary customers, growth in exactly the segment LSEG wants to own. The timing, days after deal talks leaked and alongside a guidance raise, is also genuinely convenient. Activists do not create good deals, but they do accelerate the announcement of them.

Zoom out and this is part of 2026's consolidation wave in data and software. Salesforce paid $5.66B for Braze to put real-time marketing into its AI CRM, and Proofpoint bought Varonis for $6.3B. The pattern is consistent: incumbents buying growth and proprietary data while they still can. LSEG just wrote the biggest check of the season in European fintech.