While it may not be enough for some shareholders, we think it is good to see the Teladoc Health, Inc. (NYSE:TDOC) share price up 26% in a single quarter. But that doesn't change the fact that the returns over the last three years have been stomach churning. In that time the share price has melted like a snowball in the desert, down 88%. Arguably, the recent bounce is to be expected after such a bad drop. But the more important question is whether the underlying business can justify a higher price still. We really hope anyone holding through that price crash has a diversified portfolio. Even when you lose money, you don't have to lose the lesson.

Since Teladoc Health has shed US$102m from its value in the past 7 days, let's see if the longer term decline has been driven by the business' economics.

Check out our latest analysis for Teladoc Health

Because Teladoc Health made a loss in the last twelve months, we think the market is probably more focussed on revenue and revenue growth, at least for now. Shareholders of unprofitable companies usually desire strong revenue growth. That's because it's hard to be confident a company will be sustainable if revenue growth is negligible, and it never makes a profit.

In the last three years, Teladoc Health saw its revenue grow by 10% per year, compound. That's a fairly respectable growth rate. So it's hard to believe the share price decline of 23% per year is due to the revenue. More likely, the market was spooked by the cost of that revenue. If you buy into companies that lose money then you always risk losing money yourself. Just don't lose the lesson.

The company's revenue and earnings (over time) are depicted in the image below (click to see the exact numbers).

We like that insiders have been buying shares in the last twelve months. Having said that, most people consider earnings and revenue growth trends to be a more meaningful guide to the business. You can see what analysts are predicting for Teladoc Health in this interactive graph of future profit estimates.

A Different Perspective

Investors in Teladoc Health had a tough year, with a total loss of 52%, against a market gain of about 30%. However, keep in mind that even the best stocks will sometimes underperform the market over a twelve month period. Regrettably, last year's performance caps off a bad run, with the shareholders facing a total loss of 13% per year over five years. We realise that Baron Rothschild has said investors should "buy when there is blood on the streets", but we caution that investors should first be sure they are buying a high quality business. While it is well worth considering the different impacts that market conditions can have on the share price, there are other factors that are even more important. Even so, be aware that Teladoc Health is showing 2 warning signs in our investment analysis , you should know about...

Teladoc Health is not the only stock insiders are buying. So take a peek at this free list of small cap companies at attractive valuations which insiders have been buying.

Please note, the market returns quoted in this article reflect the market weighted average returns of stocks that currently trade on American exchanges.

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.