There's never a dull week on Wall Street. Let's go over some of the news that will shape the week to come.

Monday
The first trading day of the week kicks off with McDonald's (MCD 0.47%) reporting quarterly results in the morning. After a decade of smooth and consistent store-level growth, monthly comps have been mixed since last October. The world's largest restaurant operator probably hopes that pushing up its Monopoly promotion to summer instead of autumn will help drive sales in the coming weeks, but we'll see what the Big Mac daddy is willing to share on Monday.

Tuesday
Exact Sciences (EXAS 1.80%) steps up in the morning with fresh financials, but don't hold out for a profit. This is a molecular diagnostics company that's still early in the process of tackling colorectal cancer. If investors are eager for more information, Exact Sciences is hosting its annual shareholder meeting two days later.

Wednesday
8x8 (EGHT 5.46%) reports on Wednesday. The provider of PBX telephony, video conferencing, and other Web-based communication services has been getting corporations to ditch their old-school telecommunications services for 8x8's more cost effective Web-based offerings. It's been an easy sell, and customer churn is at a historic low.

Thursday
Cliffs Natural Resources (CLF -11.03%) checks in on Thursday afternoon with its latest numbers, and they won't be pretty. The producer of iron ore and metallurgical coal is expected to post a double-digit percentage decline in revenue, and earnings are coming under even more pressure.

This hasn't been coal's finest hour, and Cliffs investors have already seen their shares lose more than half of their value so far this year.

Friday
Things are usually quiet on Fridays, but that won't stop Digital Realty Trust (DLR 1.97%) from reporting.

The REIT specializing in data center properties came under attack two months ago, when Highfields Capital Management argued that Digital Realty's model and its dividends aren't sustainable. The REIT fought back, but the shares continue to trade for less than they did at the time of the bearish comments from the hedge fund.

We may get a clearer glimpse at who's right on Friday.