The above button links to Coinbase. Yahoo Finance is not a broker-dealer or investment adviser and does not offer securities or cryptocurrencies for sale or facilitate trading. Coinbase pays us for ...

Monolithic Power Systems (MPWR) fell nearly 3% in premarket trading on Friday even after the semiconductor company reported quarterly results and guidance that were above Wall Street's forecast. For ...

Plug Power (NASDAQ:PLUG) -7.1% in Thursday's trading as Citi downgraded the stock to Neutral from Buy with a $5 price target, slashed from $12.50, saying management's "subpar execution has led the ...

Plug Power Inc (NASDAQ:PLUG) reported third-quarter financial results before the market opened on Tuesday. Here’s a look at the key metrics from the quarter. Plug Power said its results were driven by ...