In the latest trading session, Teladoc (TDOC) closed at $152.87, marking a -0.29% move from the previous day. This move lagged the S&P 500's daily gain of 0.2%.Prior to today's trading, shares of the telehealth services provider had lost 4.47% over the past month. This has lagged the Medical sector's loss of 3.49% and the S&P 500's gain of 3.28% in that time.Investors will be hoping for strength from TDOC as it approaches its next earnings release, which is expected to be July 27, 2021. On that day, TDOC is projected to report earnings of -$0.59 per share, which would represent a year-over-year decline of 73.53%. Our most recent consensus estimate is calling for quarterly revenue of $500.97 million, up 107.85% from the year-ago period.Looking at the full year, our Zacks Consensus Estimates suggest analysts are expecting earnings of -$3.03 per share and revenue of $2.01 billion. These totals would mark changes of -168.14% and +83.76%, respectively, from last year.Investors should also note any recent changes to analyst estimates for TDOC. These recent revisions tend to reflect the evolving nature of short-term business trends. As such, positive estimate revisions reflect analyst optimism about the company's business and profitability.Our research shows that these estimate changes are directly correlated with near-term stock prices. Investors can capitalize on this by using the Zacks Rank. This model considers these estimate changes and provides a simple, actionable rating system.Ranging from #1 (Strong Buy) to #5 (Strong Sell), the Zacks Rank system has a proven, outside-audited track record of outperformance, with #1 stocks returning an average of +25% annually since 1988. The Zacks Consensus EPS estimate has moved 0.39% lower within the past month. TDOC is currently sporting a Zacks Rank of #4 (Sell).The Medical Services industry is part of the Medical sector. This group has a Zacks Industry Rank of 97, putting it in the top 39% of all 250+ industries.The Zacks Industry Rank gauges the strength of our individual industry groups by measuring the average Zacks Rank of the individual stocks within the groups. 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. Bitcoin, Like the Internet Itself, Could Change Everything Blockchain and cryptocurrency has sparked one of the most exciting discussion topics of a generation. Some call it the “Internet of Money” and predict it could change the way money works forever. If true, it could do to banks what Netflix did to Blockbuster and Amazon did to Sears. Experts agree we’re still in the early stages of this technology, and as it grows, it will create several investing opportunities. Zacks’ has just revealed 3 companies that can help investors capitalize on the explosive profit potential of Bitcoin and the other cryptocurrencies with significantly less volatility than buying them directly. See 3 crypto-related stocks 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.