"Canadian energy giants Suncor Energy (NYSE: SU) and PetroCanada (NYSE: PCZ) announced their intention to merge; Suncor, a holding in our 'Wildcatters Portfolio' will be the surviving entity," says Elliott Gue.

In his The Energy Strategist, he explains, "The combined firm will be the fifth-largest energy company in North America and the largest in Canada." Here, he explains why the new stock remains a buy.

"The combined firm will have more financial flexibility than Suncor did on its own. Debt ratios will be healthier, and the combined firm will also be able to redirect certain planned capital expenditures to higher return potential projects.

MOST NOTEWORTHY: Credit Suisse, Masimo and Marvell Tech were today's noteworthy upgrades:

• Bear upgraded Credit Suisse Group (NYSE: CS) to Peer Perform from Underperform as they believe the company's balance sheet will stabilize and the company's Private Banking business is holding up well in difficult conditions. Goldman, which raised shares to Neutral from Sell, believes the worst is over regarding the market downturn.
• Citigroup upgraded Masimo Corporation (NASDAQ: MASI) to Buy from Hold citing expectations of a strong Q1 report, expected FDA approval for hemoglobin monitoring in 2H08, and valuation.
• Marvell Technology Group Ltd (NASDAQ: MRVL) was raised at Friedman Billings to Outperform from Market Perform based on valuation and improved business conditions.

OTHER UPGRADES:

• Goldman raised LM Ericsson Telephone Company (NASDAQ: ERIC) to Neutral from Sell.
• JP Morgan upgraded Big Lots Inc (NYSE: BIG) to Overweight from Neutral.
• Petro-Canada (NYSE: PCZ) was upgraded at CIBC to Sector Outperformer from Sector Performer.