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

• Aeropostale Inc. (NYSE: ARO) strong Q2 results were in line with analysts' expectations.
• BHP Billiton Ltd. (NYSE: BHP) reported a record annual profit on demands for commodities in China.
• Burger King Holdings Inc. (NYSE: BKC) beat Q4 expectations despite struggling with commodities costs.
• Foot Locker Inc. (NYSE: FL) reported that it easily beat earnings expectations for the second quarter.
• GameStop Corp. (NYSE: GME) reported strong Q2 results despite a decline in gross margins.
• Hershey Co. (NYSE: HSY) narrowed its 2008 guidance due to rising costs of commodities.
• HJ Heinz Co. (NYSE: HNZ) Q1 results topped analysts' estimates and raised its full-year guidance.
• JDS Uniphase Corp. (NASDAQ: JDSU) offered disappointing quarterly results and Q1 guidance.
• Limited Brands Inc. (NYSE: LTD) reported better-than-expected Q2 results and boosted its forecast.
• Novatel Wireless Inc. (NASDAQ: NVTL) fell short of estimates, leading to a new 52-week low.
• Saks Inc. (NYSE: SKS) reported a smaller-than-expected Q2 loss and forecast lower operating margins.
• Staples Inc. (NASDAQ: SPLS) warned of lower profits due to continued challenging market conditions.
• Zumiez Inc. (NASDAQ: ZUMZ) warmed of weakness in the second half, including lower same-store sales.

For more earnings highlights from this week, see: Home Depot, Lehman, Hewlett-Packard, Gap, BJ's and others

Upcoming quarterly reports include Big Lots (NYSE: BIG), Borders (NYSE: BGP), Rio Tinto (NYSE: RTP), Tivo (NASDAQ: TIVO), Novell (NASDAQ: NOVL), Dell (NASDAQ: DELL), Sears (NASDAQ: SHLD), and Tiffany (NYSE: TIF).

Visit AOL Money & Finance for more earnings coverage.

Rival home improvement chains Home Depot Inc. (NYSE: HD) and Lowe's Companies Inc. (NYSE: LOW) are scheduled to report quarterly results this week. Not surprisingly, given the ongoing housing slump, analysts surveyed by Thomson Financial on average expect both companies to post earnings lower than in the same period a year ago. For Home Depot, that's 61 cents per share, down 20.8%, and for Lowe's, 56 cents per share, down 16.4%. Meanwhile, cabinet maker American Woodmark Corp. (NASDAQ: AMWD), for whom Home Depot and Lowe's are major distributors, is also expected to report lower earnings: 11 cents per share, down 67.6%.

The presidential campaigns have prompted much discussion of energy policy and alternative energy sources. Some solar-energy-related concerns are scheduled to report this week, and expectations seem to be high. Trina Solar Ltd. (NYSE: TSL) is expected to report 81 cents per share earnings, up 67.9%; ReneSola Ltd. (NYSE: SOL) is expected to post earnings of 32 cents per share, up 62.5%; and Suntech Power Holdings Co. (NYSE: STP) is expected to have earnings of 32 cents per share, up 21.9%. Even China Sunergy Co. Ltd. (NASDAQ: CSUN) is expected to have swung to a profit of 3 cents per share, from a per-share loss of 14 cents a year ago.

MOST NOTEWORTHY: Sunoco, Valero Energy, UBS AG, Lehman Brothers and Supertex were today's noteworthy upgrades:

• Citigroup upgraded both Sunoco (NYSE: SUN) and Valero (NYSE: VLO) to Buy from Hold, as they believe both companies will benefit from the collapse of ethanol prices since refiners are mainly supplied under term contracts struck above current levels.
  
• Merrill upgraded shares of UBS (NYSE: UBS) to Buy from Neutral to reflect the company's lack of exposure to fixed income.
  
• Credit Suisse upgraded shares of Lehman Brothers (NYSE: LEH) to Outperform from Neutral citing improved performance prospects.
  
• Supertex (NASDAQ: SUPX) was raised to Buy from Neutral at Oppenheimer. The firm expects a rebound in all business segments, Medical is entering a seasonally strong September quarter, and notes Motorola (NYSE: MOT) shipments are growing.

OTHER UPGRADES:

• CIBC upgraded Novatel Wireless (NASDAQ: NVTL) to Sector Outperformer from Sector Performer.
  
• Suntrust upgraded American Reprographics (NYSE: ARP) to Buy from Neutral.
  
• Taiwan Semiconductor (NYSE: TSM) was upgraded to Overweight from Neutral at JP Morgan.
  
• Jefferies upgraded Dover Downs (NYSE: DDE) to Buy from Hold.