Cowen lowers its rating to market perform from outperform for Western Digital shares, predicting the storage provider will report profits below expectations next year.

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Wells Fargo Securities has a new message for investors: Hold on tight.

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China is "definitely a target" for Ripple, Jeremy Light, the firm's VP of EU strategic accounts, told CNBC.

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Wells Fargo Securities raises its rating two notches to outperform from underperform for Nvidia shares, citing the strength of its artificial intelligence and cloud computing markets.

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Emerging markets and banks are among the biggest casualties in the recent decline of the Turkish lira, but there will be some winners in the economic crisis as well. 

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Y Combinator President Sam Altman said China had been "an important missing piece of our puzzle."

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Stocks still rank low on the popularity list for Chinese investors, while private funds are playing a larger role in the country's asset management market — which many predict will soon become the world's second largest.

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See which stocks are posting big moves after the bell.

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Warren Buffett's Berkshire Hathaway increased its stake in Apple and Goldman Sachs, according to a regulatory filing Tuesday that discloses positions through the end of the second quarter.

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Bitcoin may be losing its spark as it cracks below $6,000, according to CNBC's Jim Cramer.

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In an email to employees, Pam Wasserstein, the CEO of New York Media, which owns New York magazine and several other websites, said her family "would be happy to continue owning" the business for years to come. 

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Bitcoin has had a tough week but it was other, lesser-known cryptocurrencies leading the selling spree Tuesday.

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Musk's offer is likely to include conditional financing from third parties, including Saudi Arabia's sovereign wealth fund, and may have requirements that a certain number of Tesla shareholders roll over their existing stakes into a private company.

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The "Fast Money" traders share their first moves for the market open.

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Morgan Stanley raises its price target for Salesforce shares, predicting a large increase in its sales due to its MuleSoft deal.

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