Two Citigroup Global Markets Inc. traders settled CFTC charges that they engaged in spoofing in U.S. Treasury futures markets.

Four Democratic Senators urged SEC Inspector General Carl W. Hoecker to investigate SEC Acting Chair Michael Piwowar's actions during his transitional appointment in order to "determine whether they are legally permissible and in keeping with the SEC's core mission."

CFTC Acting Chair J. Christopher Giancarlo outlined a regulatory approach that would change the priorities of the CFTC. He also announced the appointment of a new CFTC Director of Enforcement.

FINRA released podcasts that highlight operational risks and market integrity issues outlined in FINRA's 2017 Regulatory and Examination Priorities Letter.

SIFMA requested comments on draft municipal security issue price model documents in order to help industry market participants comply with the "new Treasury Department issue price rules for municipal securities."