SDI Productions/E+ via Getty Images DocuSign (NASDAQ:DOCU) is down around -8.7% year-to-date and I see this as an opportunity to buy at a fair valuation with a strong cash flow and balance sheet. Second quarter earnings coming soon DocuSign is slated to report its second-quarter earnings on September 5 and this is a good time to analyze the potential for stock gains. The company reported its first-quarter eamings on June 6 and the stock suffered due to concerns over its gross margins and guidance. For the q ...