Citigroup Sued by Loomis Sayles Over $70 Million in Trade Losses

  • Firm says Citigroup’s trade execution impacted market prices
  • Citigroup brokers were allegedly told not to disrupt market

The Citigroup headquarters in New York.

Photographer: Juan Cristobal Cobo/Bloomberg
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Loomis, Sayles & Co. sued Citigroup Inc., alleging the bank caused more than $70 million in losses while executing two separate trading orders that swamped the market.

The Boston-based investment firm says Citigroup’s global markets unit was serving as its broker in the purchase of almost 800,000 shares of Shopify Inc and sale of more than 5 million shares of Colgate-Palmolive Co. Despite being instructed to execute the trades in a manner that wouldn’t impact daily market prices, the bank allegedly placed the orders into an illiquid closing auction at the end of the day, on March 18.