Metals Sink as China Exchange Told to Rip Out High-Speed Servers

Metals slumped at the end of a dramatic week, as news of a Chinese clampdown on high-frequency trading cooled sentiment after frenzied activity in Shanghai futures fueled global price gains.

Regulators have ordered bourses including the Shanghai Futures Exchange — the main metals platform — to remove servers operated by high-frequency traders from their data centers, according to people familiar with the matter. Copper, tin, zinc and aluminum benchmark futures on the London Metal Exchange all extended declines as night-trading session got under way in China.

Metals markets roared higher earlier this week — with copper and tin notching ...