: Apple, Alphabet and Amazon stock selloff would reduce their market caps by more than $150 billion

The selloff in the shares of AAA technology behemoths — Apple Inc., Alphabet Inc. and Amazon.com Inc. — that reported quarterly results overnight are shaving off a combined $158.5 billion from the companies’ market capitalizations. But that loss would be just about 38% of what the $254.5 billion gained the day before earnings were reported. Apple stock AAPL fell 2.4% in premarket trading Friday after earnings were reported late Thursday. While that would cut Apple’s market cap by $57.6...