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

• Adobe Systems Inc. (NASDAQ: ADBE) Q2 earnings were in line with expectations but sales beat.
• Best Buy Inc. (NYSE: BBY) beat earnings estimates for Q1, but on horrible metrics, sending shares lower.
• Carnival Corp. (NYSE: CCL) lower Q2 earnings beat expectations and previous guidance, boosting shares.
• CarMax Inc. (NYSE: KMX) Q1 profit and sales dropped, but still beat expectations, sending shares higher.
• Discover Financial Services (NYSE: DFS) posted a smaller-than-expected Q2 net loss and shares rose.

Analyst Ugrades

• Stephens upgraded Old Dominion Freight (NASDAQ: ODFL) to Overweight from Equal Weight to reflect the financial problems at YRC Worldwide (NASDAQ: YRCW), which the firm believes could lead to market share gains. Stephens raised its target on Old Dominion Freight to $40 from $22.
• UBS expects SunPower (NASDAQ: SPWRA) to benefit from the U.S. residential solar segment as investment tax credits come available. The firm upgraded shares to Buy from Neutral and raised its target to $38 from $26.
• KeyBanc upgraded DPL (NYSE: DPL) to Buy from Hold based on valuation and potential upside from the Ohio approval of the rate settlement, 2010 guidance, and potential to use cash flow for accretive purposes.
• Microsoft (NASDAQ: MSFT) was upgraded to Conviction Buy from Buy at Goldman.
• Carnival (NYSE: CCL) was raised to Equal Weight from Underweight at Barclays.
• South Financial Group (NASDAQ: TSFG) was upgraded at SunTrust to Buy from Neutral.

Analyst upgrades:

• Banc of America/Merrill upgraded DPL Inc (NYSE: DPL) to Neutral from Underperform following the settlement agreement with staff of the Public Utilities Commission of Ohio on Electric Security Plan.
  
• Friedman Billings upgraded SeaBright Insurance (NYSE: SBX) to Outperform from Market Perform on valuation as they believe shares are oversold at current levels. Despite upgrading, the firm lowered its target price to $14 from $16.
  
• JP Morgan upgraded AT&T (T) to Overweight from Neutral as it believes upside earnings revisions are likely in 2009 due to the company's conservative wireline margin outlook. The firm finds the stock's valuation attractive at current levels and raised their target on shares to $28 from $24.
• Chubb (NYSE: CB) was upgraded to buy from Neutral at UBS.
  
• Cascal B.V. (NYSE: HOO) was raised to Outperform from Neutral at Credit Suisse.
  
• Healthcare Realty Trust (NYSE: HR) was upgraded at Keefe Bruyette to Outperform from Market Perform.

MOST NOTEWORTHY: DPL Inc, IAC/InterActiveCorp, F5 Networks, Community Health and Parametric Technology were today's noteworthy upgrades:

• Baird upgraded DPL Inc (NYSE: DPL) to Outperform from Neutral following better-than-expected guidance.
  
• Citigroup upgraded IAC/InterActiveCorp (NASDAQ: IACI) to Buy from Hold as they believe HSN's turnaround, Lending Tree's stabilization and Ask's profitability ramp should drive EBITDA growth acceleration in 2008. The company was also upgraded to Overweight from Equal Weight at Lehman following IAC's better-than-expected Q3 report.
  
• Citigroup upgraded shares of F5 Networks Inc (NASDAQ: FFIV) to Buy from Hold, as they believe now is the time to buy the stock with sentiment at a low-point heading into an attractive 2008 product cycle.
  
• Stifel raised its rating on Community Health Systems Inc (NYSE: CYH) to Buy from Hold based on improved visibility from detailed 2008 guidance.
  
• Kaufman upgraded Parametric Technology Corporation (NASDAQ: PMTC) to Buy from Hold based on an impressive quarter and favorable industry trends.

OTHER UPGRADES:

• China Life Insurance Company Limited (NYSE: LFC) was upgraded to Peer Perform from Underperform at Bear.
  
• The Pep Boys - Manny, Moe & Jack (NYSE: PBY) was upgraded to Neutral from Sell at Goldman.
  
• JP Morgan added Nalco Holding Company (NYSE: NLC) to its Focus List.
  
• RBC upgraded Newmont Mining Corporation (NYSE: NEM) to Sector Perform from Underperform.