ruled in a 2001 securities fraud case
... that the U.S. Supreme Court ruled in a 2001 securities fraud case that secret plans to disregard an oral contract are illegal?
... that the <a href="./Supreme_Court_of_the_United_States" id="mwBWc" rel="mw:WikiLink" title="Supreme Court of the United States">U.S. Supreme Court</a> <b id="mwBWg"><a class="mw-redirect" href="./Wharf_(Holdings)_Ltd._v._United_Int'l_Holdings,_Inc." id="mwBWk" rel="mw:WikiLink" title="Wharf (Holdings) Ltd. v. United Int'l Holdings, Inc.">ruled in a 2001 securities fraud case</a></b> that secret plans to disregard an <a href="./Oral_contract" id="mwBWo" rel="mw:WikiLink" title="Oral contract">oral contract</a> are <a href="./Securities_Exchange_Act_of_1934" id="mwBWs" rel="mw:WikiLink" title="Securities Exchange Act of 1934">illegal</a>?