A ceremonial button that starts the trading for the day is pictured in the central atrium at the London Stock Exchange Group (LSEG) offices in London on April 28, 2026. (Photo by Justin TALLIS / AFP via Getty Images)

The central atrium is pictured at the London Stock Exchange Group (LSEG) offices in London on April 28, 2026. (Photo by Justin TALLIS / AFP via Getty Images)

The central atrium is pictured at the London Stock Exchange Group (LSEG) offices in London on April 28, 2026. (Photo by Justin TALLIS / AFP via Getty Images)

The central atrium is pictured at the London Stock Exchange Group (LSEG) offices in London on April 28, 2026. (Photo by Justin TALLIS / AFP via Getty Images)

The central atrium is pictured at the London Stock Exchange Group (LSEG) offices in London on April 28, 2026. (Photo by Justin TALLIS / AFP via Getty Images)

The central atrium is pictured at the London Stock Exchange Group (LSEG) offices in London on April 28, 2026. (Photo by Justin TALLIS / AFP via Getty Images)

The central atrium is pictured at the London Stock Exchange Group (LSEG) offices in London on April 28, 2026. (Photo by Justin TALLIS / AFP via Getty Images)

The central atrium is pictured at the London Stock Exchange Group (LSEG) offices in London on April 28, 2026. (Photo by Justin TALLIS / AFP via Getty Images)