London’s Top Investors Warn on Post-Brexit Easing of IPO Rules

  • Asset managers caution against eroding investors’ rights
  • Government is weighing rule revamp to lure tech, science firms

The London Stock Exchange Group Plc's offices in London.

Photographer: Simon Dawson/Bloomberg
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Some of the biggest buyers of U.K. shares have a warning for officials weighing one of the most radical shakeups of the London stock market’s rules in years: not so fast.

Asset managers are urging caution as the government considers easing the path to public markets for startups to help post-Brexit London compete with rival financial hubs like Amsterdam and New York. The industry, which oversees about 1 trillion pounds ($1.4 trillion) in U.K. equities, wants to ensure that investor rights aren’t eroded in the push to attract the next Tesla Inc.