Let's check out the Yahoo Finance charts of the day. Microsoft (MSFT): Shares are up in early trade, at around .57%. The tech giant announced an agreement to acquire software developer platform GitHub for $7.5 billion in stock. Whirlpool (WHR): Shares rising here, at 3.4%. Credit Suisse upgrades Whirlpool Corporation to Outperform amid positive US Tailwinds. MGM Resorts (MGM): Shares down here, around .13%. A tentative agreement has been reached between casino-hotel workers and MGM Resorts, covering nearly half of the 50,000 employees threatening to strike in Las Vegas. For more on today's big stock movers check out the Final Round, live at 3:55 p.m. ET, right here on Yahoo Finance.