Here are some highlights from this past week's earnings coverage from BloggingStocks:

• Applied Materials Inc. (NASDAQ: AMAT) posted a Q1 loss and announced a workforce reduction.
• ArcelorMittal (NYSE: MT) swung to it's first ever quarterly loss due to lower demand and a big write-down.
• Buffalo Wild Wings Inc. (NASDAQ: BWLD) shares surged after it posted strong Q4 results.
• Chipotle Mexican Grill Inc. (NYSE: CMG) posted better-than-expected Q4 earnings as revenue surged.
• Genzyme Corp. (NASDAQ: GENZ) topped Q4 earnings estimates, sending shares higher.
• Global Traffic Network Inc. (NASDAQ: GNET) weaker-than-expected Q2 results led to a downgrade.
• Level 3 Communications Inc. (NASDAQ: LVLT) shares fell despite its upside surprise for Q4.
• Lions Gate Entertainment (NYSE: LGF) posted a bigger-than-expected Q3 loss despite revenue growth.

MOST NOTEWORTHY: HealthSpring (HS), CoPart (CPRT), Multi Fineline Electronix (MFLX) and Global Traffic Network (GNET) were today's noteworthy initiations:

• HealthSpring (NYSE: HS) was initiated with a Neutral rating and $20 target at Banc of America, as the firm doesn't expect earnings growth to recover until 2009.

• Rochdale Research started CoPark (NASDAQ: CPRT) with a Buy and $36 target yesterday. The firm said CoPark is in an excellent competitive position and expects growth to re-accelerate as the company integrates and expands its non-U.S. platform.

• Needham reinstated shares of Multi Fineline Electronix (NASDAQ: MFLX) with a Buy rating and $13 target, as the firm believes the current valuation overly discounts the company's opportunities with Sony-Ericsson (SNE/ERIC), Apple (AAPL), and the likelihood of stability at Motorola (MOT).

• Oppenheimer initiated shares of Global Traffic Network (NASDAQ: GNET) with a Buy rating and $9.50 target as the firm believes the company's expansion into new territories such as Canada and the UK should enable double-digit revenue and cash flow growth for the long term.

OTHER INITIATIONS:

• Goldman Sachs reinstated shares of Qiagen (NASDAQ: QGEN) with a Neutral rating.

• Raymond James initiated shares of Research in Motion (NASDAQ: RIMM) with an Outperform rating and $275 target.

• NexCen Brands (NASDAQ: NEXC) was started at Lazard with a Buy rating.

• BMO Capital initiated shares of INVESTools (NASDAQ: SWIM) with an Outperform rating.

Analyst summaries provided by TheFlyOnTheWall.com (subscription required).