Image source: Getty Images Click here to claim your copy now — and we’ll tell you the name of this Top US Share… free of charge! “This Stock Could Be Like Buying Amazon in 1997” After sharp price rises in May and early June, there is a feeling that investors are starting to worry that the stock market is going to crash again. The FTSE 100 is only marginally below where it was at the beginning of March, when the Covid-19 rout began in earnest. The speed at which markets have recovered is unprecedented, only matched by the speed at which they sold off. Few predicted such a swift recovery, myself included.Have stock markets recovered a bit too quickly?Sure, there seems to be some positive momentum around declining virus cases. The gradual lifting of lockdowns also gives us some comfort and hope. But I think there’s still a pretty big risk that a second wave comes along, which could potentially cause the stock market to crash again.5G is here – and shares of this ‘sleeping giant’ could be a great way for you to potentially profit!According to one leading industry firm, the 5G boom could create a global industry worth US$12.3 TRILLION out of thin air…And if you click here we’ll show you something that could be key to unlocking 5G’s full potential…Beyond the risk of a second wave, there are also economic and social effects to consider. The virus-induced lockdown has pushed millions into unemployment. Ominously, there are still millions of furloughed workers, of which a high number will not have jobs to go back to. It all points to a weaker global economy. This means company earnings will be affected too. With this in mind, it makes no sense for stock markets to be anywhere near where they were before the pandemic hit.I think that investors, as they are so prone to do, have overreacted. I think they overreacted to the virus back in March, pushing share prices down too low. And now they have overreacted the opposite way. In the short term, this is how markets react to uncertainty. It’s these kinds of extremes that give ordinary investors opportunities to beat the market in the long term, by allowing us to buy when prices are unusually low.How I’m investing nowIf the stock market does crash again, then there are a whole host of companies that I’d like to invest in. This includes companies that I missed out on buying during the depths of the last crash. At the top of that list are Mondi and Redrow, two quality yet undervalued stocks. In fact, I’m actually secretly hoping that prices do drop a bit. So I can buy more great companies at bargain prices.For now, as well as continuing to invest in attractively priced companies, we should also be identifying stocks that we would like to own in the future. That way, if the stock market does crash again, we will be in the perfect position to quickly take advantage of the situation.I believe prices will come down more at some point in the not too distant future, but I might be wrong. The stock market might not crash again. Share prices often bear no resemblance to reality. This is especially the case when central banks have injected so much extra liquidity into the financial system. It needs to go somewhere after all. This means we shouldn’t stop investing. But we need to be mindful of valuation, which is the key determinant of future performance. Is the stock market going to crash again? I’m sure you’ll agree that’s quite the statement from Motley Fool Co-Founder Tom Gardner.But since our US analyst team first recommended shares in this unique tech stock back in 2016, the value has soared.What’s more, we firmly believe there’s still plenty of upside in its future. In fact, even throughout the current coronavirus crisis, its performance has been beating Wall St expectations.And right now, we’re giving you a chance to discover exactly what has got our analysts all fired up about this niche industry phenomenon, in our FREE special report, A Top US Share From The Motley Fool. See all posts by Thomas Carr Thomas has no position in any of the shares mentioned. The Motley Fool UK has no position in any of the shares mentioned. Views expressed on the companies mentioned in this article are those of the writer and therefore may differ from the official recommendations we make in our subscription services such as Share Advisor, Hidden Winners and Pro. Here at The Motley Fool we believe that considering a diverse range of insights makes us better investors. I would like to receive emails from you about product information and offers from The Fool and its business partners. Each of these emails will provide a link to unsubscribe from future emails. More information about how The Fool collects, stores, and handles personal data is available in its Privacy Statement. Our 6 ‘Best Buys Now’ Shares Thomas Carr | Wednesday, 10th June, 2020 Enter Your Email Address Renowned stock-picker Mark Rogers and his analyst team at The Motley Fool UK have named 6 shares that they believe UK investors should consider buying NOW.So if you’re looking for more stock ideas to try and best position your portfolio today, then it might be a good day for you. Because we’re offering a full 33% off your first year of membership to our flagship share-tipping service, backed by our ‘no quibbles’ 30-day subscription fee refund guarantee. 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