Common Questions

What does LSEG do and what does it own?

LSEG (London Stock Exchange Group) operates the London Stock Exchange, the Refinitiv data platform, FTSE Russell indices, and LCH clearing. It is one of the world's largest financial markets infrastructure companies with around £8 billion in revenue.Source: https://www.lseg.com/en/about-lseg

What is Refinitiv and how does it relate to LSEG?

Refinitiv is LSEG's financial data and analytics division, acquired from Thomson Reuters in 2021 for $27 billion. It provides the Eikon/Workspace terminal, vessel-tracking data, news feeds, and commodity analytics used by traders and compliance teams globally.Source: https://www.lseg.com/en/data-analytics

How did LSEG data track Iranian tanker movements during the Hormuz blockade?

LSEG's Refinitiv vessel-tracking service was one of three platforms confirming that US-sanctioned tankers Rich Starry and Murlikishan transited the Strait of Hormuz unchallenged on 13-14 April 2026, showing legitimate traffic falling 86% on day one of the CENTCOM blockade.Source: /t/iran-conflict-2026/68/sanctioned-tankers-slip-hormuz-on-day-one

Background

LSEG (London Stock Exchange Group) is a British financial markets infrastructure company headquartered in London, with revenues of approximately £8 billion. It operates the London Stock Exchange, the Refinitiv financial data and analytics platform (acquired from Thomson Reuters for $27 billion in 2021), the FTSE Russell index business, and LCH, one of the world's largest central clearing houses. LSEG ranks alongside Intercontinental Exchange and CME Group as a top-tier global market infrastructure provider.

Refinitiv's Eikon terminal and Workspace platform supply real-time pricing, news, and commodity data to financial institutions worldwide. Refinitiv's vessel-tracking intelligence, sourced from AIS feeds and commercial port data, is a component of the broader commodity and energy analytics suite used by oil traders, shipping banks, and sanctions compliance teams alongside specialist platforms such as Kpler and MarineTraffic. At London Tech Week in June 2026, LSEG was named as one of the Coalition partners co-designing Lumen Sovereign, the UK sovereign frontier AI model being developed by Cosine under the government's £500m Sovereign AI programme.

In the 2026 Iran blockade, LSEG's tanker-tracking data was cited as one of three independent sources confirming the transit of US-sanctioned Chinese tankers Rich Starry and Murlikishan through the Strait of Hormuz on 13-14 April, on the first day of CENTCOM enforcement. The 86% single-day drop in legitimate Hormuz traffic on 14 April was visible across all three platforms.