Chopper Trading LLC v. Allston Trading LLC

IN THE UNITED STATES DISTRICT COURT FOR THE NORTHERN DISTRICT OF ILLINOIS EASTERN DIVISION CHOPPER TRADING LLC, ) ) Plaintiff, ) No. 19-cv-1674 ) v. ) Judge Jeffrey I. Cummings ) ALLSTON TRADING LLC, ) ) Defendant. ) MEMORANDUM OPINION AND ORDER Plaintiff Chopper Trading LLC (“Chopper”) filed this lawsuit on March 9, 2019, (Dckt. #1), against defendant Allston Trading LLC (“Allston”) alleging that Allston violated (1) Section 10(b) of the Securities Exchange Act of 1934 (“SEA”), (2) Securities and Exchange Commission Rule 10b-5 (“Rule 10b-5”), and (3) the Illinois Consumer Fraud Act (“ICFA”)…