"Advertising Giant Interpublic Could Pop 20%" by Jack Hough makes a case that a successful melding of traditional and digital advertising is giving

(NYSE:

) a leg-up on rivals. "When you have a fragmented media environment, companies need someone to make sense of it, and they want that someone to be agnostic," says the firm's chief executive. In "Joint Manufacturer Could Gain 25%," Robin Goldwyn Blumenthal takes a closer look at

(NYSE:

). The nation's leading hip- and knee-replacement maker is trading at a steep discount to its peers, and it recently authorized a $1 billion share buyback. The aging of the baby boomer generation should help the company as well. David Englander's "Two Stocks That Look Like Buys" examines why

(NASDAQ:

) and

look like buys now. The former is an acquisition-oriented company, backed by investor Sam Zell. The latter recently reported good earnings for the first time since the merger with Gtech. See also:

Closed-end funds run by two hedge fund pros offer a backdoor way to invest in hedge funds, according to "How to Buy Bill Ackman, Dan Loeb on the Cheap" by Andrew Bary. Check out the article on alternative investments to see why that gives investors access the acumen of these pros cheaply. Other options include reinsurance companies from Loeb and David Einhorn. Also in this week's Barron's:

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