DocuSign (NASDAQ: DOCU ) managed to beat top and bottom-line estimates for its first fiscal quarter on Thursday, but nonetheless, shares of the e-Signature leader dropped 17% in after-hours trading, mainly because of lower billings. I believe the market is massively overreacting to DocuSign’s earnings reportAnalyst’s Disclosure:I/we have no stock, option or similar derivative position in any of the companies mentioned, but may initiate a beneficial Long position through a purchase of the stock, or the purch ...