S&P 500 futures added 0.16%, Dow Jones Industrial Average futures were up 0.22%, and Nasdaq futures climbed 0.04%.
Alphabet breezed past analysts' earnings estimates and reported a double-digit increase in sales. The parent of Google earned $5.01 a share over its second quarter, 58 cents higher than consensus. Revenue surged 21% to $26.01 billion and exceeded targets by $410 million.
However, shares fell more than 2% in premarket trading after the company hinted that rising costs could slow profit margin improvements. The company's total traffic acquisition costs increased to $5.091 billion and now represent 22% of Google's advertising revenue.
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