London Stock Exchange Group (LON:LSEG) Share Price Today, 21 November 2025 – Buyback RNS Fuels 3.6% Jump as FTSE 100 Slides

London Stock Exchange Group plc (LON: LSEG) ended Friday’s session sharply higher, defying a weak broader market as investors reacted to another “Transaction in Own Shares” announcement under the group’s ongoing £1 billion buyback programme. ^[1]

Below is a detailed look at today’s LSEG share price move, the fresh buyback news released on 21 November 2025, and the wider market context driving sentiment.

LSEG share price today: snapshot for 21 November 2025

As of the close on Friday, 21 November 2025, London Stock Exchange Group shares traded around:

Closing price: approximately 8,630p per share
Daily change: up about +300p, a gain of roughly +3.6% versus Thursday’s close of 8,330p ^[2]
Intraday range: roughly 8,322p (low) to 8,636p (high) after opening at 8,378p ^[3]
Volume: around 370,000 shares traded during the session ^[4]

On fundamental metrics, data from UK brokers shows: ^[5]

Market capitalisation: ~£44.2 billion
Price/earnings ratio (P/E): about 22.9x
Dividend yield: roughly 1.5%
52‑week range: about 8,096p – 12,185p

Despite today’s rally, LSEG shares remain well below their 52‑week peak and are still down by a little over 20% over the past year, according to historical performance data. ^[6]

In other words, Friday’s move looks more like a bounce within a wider correction than a full-blown trend reversal — at least for now.

Fresh “Transaction in Own Shares” RNS supports Friday’s rally

The main LSEG-specific news released today, 21 November 2025, is a new Regulatory News Service (RNS) filing titled “London Stock Exchange Group plc (‘LSEG’) – Transaction in Own Shares”. ^[7]

Key details from the announcement:

Date of purchase: 20 November 2025
Number of shares repurchased:207,500 ordinary shares
Price range:
- Lowest price:8,346.00p
- Highest price:8,500.00p
- Volume‑weighted average price:8,413.01p ^[8]
Broker executing the buyback: Citigroup Global Markets Limited (“Citi”)
Treatment of shares: LSEG intends to cancel all of the repurchased shares

After this latest cancellation, the group reports:

Shares in issue (excluding treasury):514,364,625
Treasury shares held:24,051,599
Total voting rights:514,364,625 ^[9]

This RNS is part of the £1 billion share buyback programme announced on 4 November 2025, itself a follow‑on from the strong Q3 trading update on 23 October. Under that programme, Citi has been mandated to buy LSEG shares in the market on a riskless principal basis up to an aggregate value of £1 billion, with purchases running until no later than 25 February 2026. All shares bought are then on‑sold to LSEG and cancelled. ^[10]

Buybacks reduce the number of shares in circulation and can support earnings per share (EPS) over time. The steady stream of daily “Transaction in Own Shares” notices — including today’s — reinforces to the market that the buyback is actually being executed, not just promised.

That visible buying support likely helped LSEG shares outperform on a difficult day for equities.

LSEG outperforms as FTSE 100 hits a one‑month low

Friday’s gain for LSEG came against a distinctly negative backdrop for UK stocks:

The FTSE 100 fell around 0.6% intraday, hitting a one‑month low near the 9,423–9,471 range. ^[11]
A live business blog from the Guardian described how concerns over an “AI bubble”, disappointing UK economic data and renewed global market jitters weighed on sentiment. ^[12]

Key macro headwinds today included:

AI and tech valuation fears: After a sharp reversal in US tech stocks, investors questioned whether AI‑related spending and valuations had run too far, too fast. ^[13]
UK data disappointments: October retail sales declined and public borrowing exceeded forecasts, squeezing the room for fiscal manoeuvre ahead of the Budget. ^[14]

Despite this, LSEG rallied more than 3%, comfortably outperforming the index, which finished the day still in the red. ^[15]

That divergence suggests investors are treating LSEG increasingly as a stock‑specific story driven by:

Capital returns via buybacks, and
Structural growth in data, analytics and clearing — more than by short‑term swings in UK macro sentiment.

The bigger story: Q3 stake sale, margin upgrade and buyback plan

To understand why today’s buyback‑linked RNS matters, it helps to look back to 23 October 2025, when LSEG published its Q3 2025 trading update and announced a significant reshaping of its clearing business. ^[16]

Highlights from that update:

Stake sale in Post Trade Solutions:
- A group of 11 banks agreed to buy 20% of LSEG’s Post Trade Solutions clearing unit for £170 million, valuing the business at about £850 million. ^[17]
Improved economics from SwapClear:
- The share of surplus income from the SwapClear interest‑rate swap clearing service going to banks will be cut from 30% to 15% in 2025, and further to 10% from 2026, boosting LSEG’s share of profits. ^[18]
Stronger‑than‑expected Q3 results:
- Total income (excluding recoveries) rose about 6.4% year‑on‑year, ahead of the 5.2% growth forecast in a company poll.
- Management raised margin guidance for 2025, underscoring operating leverage in the data and analytics franchise. ^[19]

Crucially for today’s price action, LSEG also coupled those numbers with a surprise £1 billion buyback, on top of earlier repurchase programmes completed with Morgan Stanley and Goldman Sachs earlier in 2025. ^[20]

Since then, the market has been watching the daily flow of Transaction in Own Shares RNS filings as a tangible sign that the promised capital return is indeed underway. Today’s notice — repurchasing 207,500 shares at an average of 8,413.01p — continues that pattern. ^[21]

AI and data strategy: Anthropic partnership keeps LSEG in the AI conversation

Another pillar of the LSEG equity story — and a source of recurring news flow in recent weeks — is its push deeper into AI‑powered analytics and data distribution.

On 27 October 2025, LSEG announced a collaboration with AI firm Anthropic to bring LSEG Workspace and financial analytics directly into the Claude for Financial Services offering. ^[22]

According to the joint announcement and Reuters coverage: ^[23]

Claude users in financial institutions will be able to access licensed LSEG data and analytics.
The integration aims to let customers summarise earnings calls, scan due‑diligence materials, trigger workflows and surface market signals with enterprise‑grade controls.
LSEG shares rose up to 1.7% on the day of the announcement, reflecting investor interest in AI‑enabled use‑cases.

This partnership dovetails with CEO David Schwimmer’s Q3 comments, where he argued that generic AI scraping public web data cannot easily replicate LSEG’s proprietary, permissioned datasets, and that there is “more to come” in terms of private markets data and analytics offerings. ^[24]

For shareholders, the Anthropic deal reinforces the “data and platforms” narrative that has underpinned LSEG’s transformation since the Refinitiv acquisition — and helps keep the stock on radars even as investors debate whether AI valuations elsewhere have run too hot.

Regulatory and political cross‑currents investors can’t ignore

While buybacks and AI partnerships are supportive, recent headlines also highlight risks and scrutiny around LSEG’s role in UK markets.

1. Pensions pushback on “invest in Britain” campaign

On 13 November 2025, Reuters reported that UK pension industry groups had criticised proposals led by LSEG and more than 100 executives that would encourage defined contribution schemes to allocate at least 25% of default funds to UK assets. ^[25]

The proposals — signed by LSEG’s chair Don Robert and CEO David Schwimmer — argue that such a shift could drive £76–95 billion of extra investment into UK equities by 2030, reversing the long‑term decline in domestic holdings. Pension representatives, however, cautioned that mandating a UK quota could increase risk for savers and undermine the principle that asset allocation should be made in members’ best interests. ^[26]

For LSEG, the episode is a reminder that its advocacy role in UK capital markets carries reputational and policy risk if its initiatives are perceived as misaligned with saver outcomes.

2. Competition concerns over “fast‑lane” rooftop access

Separate reporting this month has also spotlighted a dispute over a 25,000‑square‑foot rooftop on an LSEG data centre near Canary Wharf. The rooftop hosts ultra‑fast radio links used by high‑frequency trading firms, making it one of the most valuable pieces of real estate in British finance. ^[27]

The UK’s Financial Conduct Authority (FCA) previously ruled that LSEG’s tight control of the rooftop unfairly restricted rival connectivity providers. LSEG has since agreed to open access to all qualified firms, but the saga illustrates how the group’s infrastructure assets can fall under competition and conduct scrutiny — another factor investors are likely to watch as regulators globally tighten oversight of market data and trading infrastructure. ^[28]

How today fits into the medium‑term picture for LSEG

Putting all the pieces together, today’s 3.6% share price rise looks to be driven by a combination of technical and fundamental dynamics:

Technical support from buybacks
- The £1 billion buyback — now visibly underway through repeated RNS disclosures — provides a consistent source of demand for the shares, especially on weak market days. ^[29]
Improved profitability profile from clearing deal
- By cutting the revenue share paid to banks in SwapClear from 30% to 15% (then 10% from 2026), LSEG has effectively improved the economics of one of its most strategically important businesses without surrendering operational control. ^[30]
Structural growth in data and analytics
- The Anthropic partnership underscores LSEG’s ambition to monetise its data across new AI‑enabled channels, helping justify a premium multiple despite recent share price weakness. ^[31]
Macro headwinds and volatility
- At the same time, investors are dealing with AI bubble fears, weak UK data and choppy global markets, as highlighted by today’s FTSE 100 slide to a one‑month low. ^[32]

That mix leaves LSEG in an interesting spot: company‑specific fundamentals are improving, yet the share price is still below recent highs and down year‑on‑year, indicating that sentiment remains fragile and valuation debates are far from settled. ^[33]

What to watch next for LSEG investors

While today’s article focuses on 21 November 2025, there are several forward‑looking themes that may influence LSEG’s share price in the coming weeks and months:

Pace of buybacks:
- Continued daily RNS updates will show how quickly Citi is executing the buyback, and at what price points. Faster execution at current levels could provide further support.
Regulatory follow‑through:
- Any additional guidance from the FCA or other regulators on trading infrastructure, market data pricing or competition could affect perceived risk around LSEG’s platforms. ^[34]
Macro and AI sentiment:
- If concerns over an AI bubble and tech valuations ease, sentiment could improve towards data and analytics providers like LSEG. Conversely, a deeper risk‑off phase could overshadow company‑specific positives. ^[35]
Next set of financial results:
- Markets will want to see whether the Q3 momentum in income growth and margins is sustained into year‑end and 2026, especially as capital is deployed into AI, private markets data and clearing infrastructure. ^[36]

Important disclaimer

This article is based on publicly available information as of 21 November 2025 and is intended for general information and news purposes only. It does not constitute investment advice, a recommendation to buy or sell any security, or a substitute for independent financial research. Always consider your own financial situation and, if necessary, consult a qualified adviser before making investment decisions.