WASHINGTON—Authorities are investigating whether traders at JPMorgan Chase & Co. manipulated the market for Treasury securities and futures contracts, according to regulatory disclosures and people familiar with the matter. The investigation shows that federal prosecutors and regulators continue to expand a campaign against an illicit practice known as spoofing, which has mainly focused on wily trading in derivatives. A move to scrutinize whether similar practices have affected the $17 trillion market for Treasury securities...

Source: Wall Street Journal March 17, 2020 12:00 UTC