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Amazon losses pile up; Starbucks stock cools down; Pandora sends mixed signals

Kathy Cherpelis
Hot Stock Minute

Here is a look at some of the stocks the Yahoo Finance team will be watching for you today.

Amazon (AMZN) shares tumbled in early trading after the e-commerce giant reported a wider-than-expected loss of $126 million in the second quarter. However, revenue rose 23%, matching estimates. The company also expects a bigger-than-expected operating loss of $410 million to $810 million in the current quarter. Amazon's losses reflect the big investments it has been making on new businesses and services. This year alone, it unveiled streaming services, and its first set-top box and smartphone.

Starbucks (SBUX) shares fell before the bell. Investors took some profits after the coffee-chain gave a cautious outlook for next year as it opens new stores, and rising prices for ingredients puts pressure on profit growth. However, earnings beat by a penny, jumping 23% from a year ago. Revenue also came in slightly better than estimates thanks to stronger sales and customer traffic. 

Pandora (P) stock was also lower in early trading after the Internet radio company provided a profit forecast for the current quarter that was below analysts' estimates. The company plans to reinvest money back in the business, and it reported listener growth slowed last quarter as it faces stiff competition from rivals such as Spotify and Apple's Beats. However, earnings topped estimates by a penny and revenue matched expectations, helped by strong mobile ad growth. The company also raised is sales outlook for the year. 

Visa (V) shares were down in the pre-market as the company lowered its revenue outlook for the year due to a slow-down in cross-border transactions and a strengthening U.S. dollar. That news over-shadowed earnings and revenue that topped analysts' estimates.