Shares of (NASDAQ: ROKU) charged out of the gate Friday, jumping as much as 14.2%. As of 12:34 p.m. ET, the stock was still up 12.3%.

The catalyst that propelled the streaming video pioneer higher was an upgrade and bullish commentary from a Wall Street analyst.

Guggenheim analyst Michael Morris upgraded Roku stock to a buy from neutral (hold) while raising his price target to $75. For investors keeping track at home, that represents potential upside of 21% for investors compared to Thursday's closing price.

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Source Fool.com