Morning Brief Hosts Seana Smith and Brad Smith check in on some of the top trending tickers on Yahoo Finance. Shares of Accenture (ACN) are rising after the company reported better-than-expected fourth quarter revenue and announced a $4 billion share buyback plan. On the other hand, shares of Sonos (SONO) are falling after Morgan Stanley double-downgraded the stock to Underweight from Overweight, believing that the company's application redesign will negatively impact its top and bottom lines. Finally, shares of Starbucks (SBUX) are climbing higher after Bernstein upgraded the company to Outperform from Market Perform and lifted its price target to $115 from $92. For more expert insight and the latest market action, click here to watch this full episode of Morning Brief. This post was written by Melanie Riehl