Stock Markets May 18, 2026 12:09 PM

U.K. Equities Close Higher as Utilities and Energy Names Lead Gains

Investing.com United Kingdom 100 advances after strength in Gas, Water & Multiutilities, Electrical and Oil & Gas Producers sectors

By Sofia Navarro WPP CNA NG III

London shares finished higher on Monday, with the Investing.com United Kingdom 100 up 1.36% as stocks in the Gas, Water & Multiutilities, Electrical and Oil & Gas Producers sectors pushed the market higher. WPP, Centrica and National Grid were among the session leaders, while 3I Group, Vistry Group and Airtel Africa registered the largest declines. Market breadth was positive, and key commodity and currency benchmarks moved modestly.

U.K. Equities Close Higher as Utilities and Energy Names Lead Gains
WPP CNA NG III

Key Points

  • Investing.com United Kingdom 100 closed up 1.36%, supported by gains in Gas, Water & Multiutilities, Electrical and Oil & Gas Producers sectors.
  • WPP, Centrica and National Grid were among the top performers, while 3I Group, Vistry Group and Airtel Africa were the largest decliners.
  • Market breadth was positive with 940 advancers, 822 decliners and 521 unchanged; 3I hit 52-week lows and Vistry reached 5-year lows.

Market close overview

U.K. equities ended Mondays session in positive territory, led by gains in the Gas, Water & Multiutilities, Electrical and Oil & Gas Producers sectors. At the London close, the Investing.com United Kingdom 100 index had risen 1.36%.

Top and bottom movers

The sessions strongest performer on the Investing.com United Kingdom 100 was WPP PLC (LON:WPP), which climbed 4.93% - gaining 12.90 points to finish at 274.80. Centrica PLC (LON:CNA) also posted notable strength, adding 4.07% or 7.70 points to close at 196.95. National Grid PLC (LON:NG) rose 3.66%, up 43.50 points to 1,231.50 by the end of trading.

On the downside, 3I Group PLC (LON:III) was the weakest stock on the index, sliding 5.79% or 128.00 points to close at 2,082.00. Vistry Group PLC (LON:VTYV) fell 4.82%, down 13.40 points to 264.60, while Airtel Africa Plc (LON:AAF) dropped 4.75% or 15.60 points to finish at 312.80.

Breadth and notable lows

Advancers outnumbered decliners on the London Stock Exchange by 940 to 822, with 521 shares unchanged at the close. Shares of 3I Group PLC fell to 52-week lows, while Vistry Group PLC declined to 5-year lows during the session.

Commodities and currencies

In commodities trading, June delivery Gold Futures declined 0.32% or 14.39 to $4,547.51 a troy ounce. Crude oil for July delivery moved higher, rising 1.96% or 1.98 to $103.00 a barrel, and the July Brent contract increased 1.67% or 1.82 to $111.08 a barrel.

On the currency front, GBP/USD was up 0.80% to 1.34, while EUR/GBP fell 0.58% to 0.87. The US Dollar Index Futures was down 0.26% at 98.95.

Session data snapshot

Key individual stock moves and index indicators cited in this report include CNA +4.07%, III -5.79%, WPP +4.93%, VTYV -4.82%, NG +3.66%, DX -0.24%, GC -0.45%, UK100 +1.57%, CL +2.31%, and AAF -4.75%.


Note: This report summarizes market action at the close in London and the movements of selected securities and benchmarks mentioned above.

Risks

  • Concentration of gains in utilities and energy sectors may leave the index vulnerable if those sector-specific drivers reverse - impacts Gas, Water & Multiutilities, Electrical and Oil & Gas Producers sectors.
  • Significant individual stock declines, including 3I Group and Vistry Group, highlight company-level downside risk that could affect shareholder returns in their respective industries.
  • Movements in commodities and currencies, such as higher crude oil and shifts in GBP and the US Dollar Index Futures, could introduce volatility across energy-linked names and export-sensitive sectors.

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