Yahoo Finance Special Reporter Rachelle Akuffo breaks down the top market stories of the day.

Bloom Energy (BE) secured a new deal with American Electric Power (AEP) to power data centers using its fuel cells. Following the announcement, the company's stock has been trending upward.

Meanwhile, Baird upgraded Roku's (ROKU) stock to Outperform from Neutral, citing "meaningful changes in the business" and optimistic long-term growth prospects.

Finally, in response to an E. coli outbreak that impacted foot traffic and sales, McDonald's (MCD) is investing over $100 million to reinvigorate its business and attract customers back to its restaurants.

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This post was written by Angel Smith