At the tippy top of the greatest bubble ever, all kinds of stuff can happen….

DocuSign, Worth $46 billion at 4 p.m., Plunges 30% Afterhours as “the Environment Shifted More Quickly than We Anticipated”

Shares of DocuSign [DOCU], purveyor of eSignature services, collapsed by 30% in afterhours trading, from $233.82 a share to $164.50 a share in no time, taking its $46 billion in market capitalization down by about $14 billion. Since their peak in August, shares have plunged by 47%: