Stocks finished the second quarter on a lower note Monday, despite compelling data that show the housing market may be getting back on its feet once again. Pending home sales in May soared 6.1% from April, the largest month-over-month gain since April 2010. The good news apparently wasn't enough to send the Dow Jones Industrial Average (DJINDICES:^DJI) into positive territory; the index lost 25 points, or 0.2% today, ending at 16,826.

McDonald's (NYSE:MCD) was one blue chip stock that didn't help the index escape from the red on Monday, as shares lost 0.7%. The famed fast-food burger behemoth faces a number of obstacles as it tries to reignite growth and fend of relentless competition. In what's been dubbed the "breakfast wars," Yum! Brands' Taco Bell is the latest fast food chain to launch a breakfast menu and advertise it heavily. Desperate for ways to grow sales, McDonald's has now even launched its own app that allows users to order before they arrive. In some locations, they've launched kiosks and multiple drive-through windows to speed up service. What's next, delivery?

Ameresco (NYSE:AMRC), which consults, designs, develops and installs energy-efficient systems primarily for commercial, industrial, and governmental clients, saw shares fall 3% in the stock market today. Fellow Motley Fool contributor Jason Hall highlights several concerning issues that Ameresco investors should be aware of, from declining revenues, to stiff competition, to a reliance on government spending in a time where "government spending" is an ugly phrase. And I must agree that any public company that logged fewer sales in 2013 ($574 MM) than it did in 2010 ($618 MM) has earned itself some skepticism.

Addictive and colorful, "Candy Crush Saga" is King Digital's crown jewel. Image source: King Digital

Lastly, shares of King Digital Entertainment (UNKNOWN:KING.DL) were kings of the market on Monday, soaring 15.1%. The mobile game developer, best known for its highly addictive and colorful Candy Crush Saga game, saw its stock upgraded by two Wall Street analysts today ahead of upcoming game launches. As I wrote on Friday after King Digital shares tacked on more than 5% and unusual options activity caught people's attention, "there seems to be something going on behind the scenes here." Who knows if the well-timed options purchases last week were the result of a leak about today's analyst upgrades or simply a random surge in activity, but the whole ordeal smells a little fishy.

John Divine has no position in any stocks mentioned. You can follow him on Twitter, @divinebizkid, and on Motley Fool CAPS, @TMFDivine.

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