In the latest close session, Teladoc (TDOC) was down 3.97% at $7.49. The stock's performance was behind the S&P 500's daily gain of 0.3%. At the same time, the Dow lost 0.48%, and the tech-heavy Nasdaq gained 0.03%. Shares of the telehealth services provider have appreciated by 13.54% over the course of the past month, outperforming the Medical sector's gain of 7.07%, and the S&P 500's gain of 2.09%.The upcoming earnings release of Teladoc will be of great interest to investors. The company's earnings per s ...