Shares of Monster Worldwide Inc., operator of job Web site Monster.com., fell to their lowest level since 2003 Monday, as the broader market declined and an analyst lowered her price target on the stock.

By Scott Malone

U.S. staffing and jobs services companies' shares were little changed on Thursday, after a government report showed employers cut jobs for the sixth straight month, but unemployment held steady.

Though the U.S. markets are closed Friday for the Fourth of July holiday, investors this week will have several economic and earnings reports to watch to determine how healthy the economy is.

Earnings season is in full gear. How can you game the market and play the disappointing earnings before they're reported reported? Jon Najarian, co-founder of optionmonster.com, and Andrew Wilkinson, senior market analyst at Interactive Brokers, both say the key is watching options trading.