Analyst Upgrades

• Applied Materials (AMAT) to overweight from neutral at Piper Jaffray.
• Air Products (APD) to buy from hold at Citigroup.
• Youku.com (YOKU) and Pinnacle West (PNW) to buy from neutral at Goldman.
• Stryker (SYK) and Zimmer (ZMH) to buy from neutral at UBS.
• Zions Bancorp (ZION) to outperform from neutral at Macquarie.
• Alnylam (ALNY) to buy from hold at Needham.
• AK Steel (AKS) to buy from hold at KeyBanc.

This post is part of a special report, A Dozen Ways to Play an Obama Building Boom.

"Project management firm Hill International (NYSE: HIL) is one of the best ways to profit from the public works projects planned in government stimulus packages," says Dave Dyer.

In his The Dave Dyer Newsletter, he explains, "HIL is a consulting company that provides expertise in the project management area. Their business is a people business, not a business that requires them to invest in a lot of heavy construction equipment.

"I think this gives them three advantages: first, they do not have the long marketing cycle that can last for years on a large project, second, they have greater flexibility to expand or contract as business opportunities change, and third, their fee-based revenue structure is less risky than other compensation models used in the construction industry.

"HIL has two divisions. Its original business, founded in 1976, was a construction litigation support company that supplied expert witnesses and other expertise to construction companies involved in contract disputes.

"They saw early in their history that they could also provide value as a dispute preventer rather than just an after the fact resolver, so they started a project management division.

MOST NOTEWORTHY: Analog Semiconductors, Hill International and Varian Semi were today's noteworthy upgrades:

• Lehman upgraded Analog Devices (NYSE: ADI), Fairchild Semi (NYSE: FCS), and Intersil Corp (NASDAQ: ISIL) to Overweight from Equal Weight. The firm believes Analog semis have one of the most attractive risk/reward profiles in technology and expects the group to outperform in 2008.
  
• B. Riley raised Hill International (NYSE: HIL) to Buy from Neutral following the company's Q4 results which they believe continued to reflect strong growth across both segments of the business.
  
• ThinkEquity upgraded Varian Semi (NASDAQ: VSEA) to Accumulate from Source of Funds citing valuation and expectations that the company will end up with over 70% of the overall implant market past 2008. The firm adds that scale and pricing power should drive upside to margins.

OTHER UPGRADES:

• Collective Brands (NYSE: PSS) was raised to Buy from Hold at Soleil.
• JP Morgan upgraded Rockwell Collins (NYSE: COL) to Overweight from Neutral.
  
• UBS upgraded Cigna (NYSE: CI) to Buy from Neutral.