How did Alphabet, Amazon, Microsoft fare in a surging cloud market in Q4?

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The latest earnings releases from Microsoft (NASDAQ:MSFT), Alphabet (NASDAQ:GOOG) (NASDAQ:GOOGL), and Amazon (NASDAQ:AMZN) share a common theme: disappointing cloud businesses in a surging market.
Shares of Alphabet (NASDAQ:GOOG) (NASDAQ:GOOGL) and Amazon (NASDAQ:AMZN) came under pressure