Those concerns turned out to be overblown, and the Nasdaq recovered to a new all-time closing high of 8,120.82 on April 23, 2019, just four months after it hit that cyclical bottom.

Microsoft (NASDAQ: MSFT) hit a new all-time high early on Wednesday -- making it the only company at the moment valued at a market cap over $3.5 trillion. Investors wondering which "Magnificent ...