More than a dozen lawyers, many from Big Law firms, appeared on Tuesday to defend Robinhood and others in class actions brought over the Jan. 28 halt in trading of GameStop and others.

Appearing before the U.S. Judicial Panel on Multidistrict Litigation, which will hear arguments on March 25 about whether to coordinate nearly 50 class actions over the trading scandal, were Kevin Orsini, a partner at New York-based Cravath, Swaine & Moore, for Robinhood, an online trading platform, and Adam Hoeflich, a partner at Bartlit Beck in Chicago, for hedge fund Citadel.