Teladoc (TDOC) closed at $139.29 in the latest trading session, marking a -1.96% move from the prior day. This change lagged the S&P 500's 0.23% gain on the day.Coming into today, shares of the telehealth services provider had lost 1.34% in the past month. In that same time, the Medical sector gained 0.02%, while the S&P 500 gained 0.65%.TDOC will be looking to display strength as it nears its next earnings release. On that day, TDOC is projected to report earnings of -$0.63 per share, which would represent a year-over-year decline of 384.62%. Meanwhile, our latest consensus estimate is calling for revenue of $517.06 million, up 79.03% from the prior-year quarter.Looking at the full year, our Zacks Consensus Estimates suggest analysts are expecting earnings of -$3.53 per share and revenue of $2.02 billion. These totals would mark changes of -212.39% and +84.35%, respectively, from last year.Investors should also note any recent changes to analyst estimates for TDOC. Recent revisions tend to reflect the latest near-term business trends. As a result, we can interpret positive estimate revisions as a good sign for the company's business outlook.Based on our research, we believe these estimate revisions are directly related to near-team stock moves. Investors can capitalize on this by using the Zacks Rank. This model considers these estimate changes and provides a simple, actionable rating system.The Zacks Rank system, which ranges from #1 (Strong Buy) to #5 (Strong Sell), has an impressive outside-audited track record of outperformance, with #1 stocks generating an average annual return of +25% since 1988. The Zacks Consensus EPS estimate remained stagnant within the past month. TDOC is holding a Zacks Rank of #4 (Sell) right now.The Medical Services industry is part of the Medical sector. This industry currently has a Zacks Industry Rank of 186, which puts it in the bottom 27% of all 250+ industries.The Zacks Industry Rank includes is listed in order from best to worst in terms of the average Zacks Rank of the individual companies within each of these sectors. Our research shows that the top 50% rated industries outperform the bottom half by a factor of 2 to 1.Be sure to follow all of these stock-moving metrics, and many more, on Zacks.com. Tech IPOs With Massive Profit Potential: Last years top IPOs surged as much as 299% within the first two months. With record amounts of cash flooding into IPOs and a record-setting stock market, this year could be even more lucrative. See Zacks’ Hottest Tech IPOs Now >>Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report Teladoc Health, Inc. (TDOC): Free Stock Analysis Report To read this article on Zacks.com click here.