Here's how top Wall Street analysts reacted to Alphabet's first-quarter earnings report

The logos of Google and several of its applications are displayed on a computer screen.
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Alphabet's first-quarter results led to rising optimism among Wall Street analysts about the rest of the year, earning the company several price-target hikes on Wednesday morning.

Google's parent company easily topped expectations for earnings and revenue in the quarter, and YouTube's advertising business was strong.

The company's shares were up about 5% in premarket trading to around $2,405. Here's what top Wall Street analysts had to say.