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

• Allegiant Travel Co. (NASDAQ: ALGT) beat estimates with soaring Q1 revenues, bucking the airline trend.
• Apache Corp. (NYSE: APA) Q1 profits doubled but fell short of expectations.
• Avon Products Inc. (NYSE: AVP) posted solid Q1 results despite negative operational cash flow.
• Centex Corp. (NYSE: CTX) posted a Q4 loss well below analyst estimates.
• Cigna Corp. (NYSE: CI) profits plunged in the first quarter on litigation charges.
• Countrywide Financial Corp. (NYSE: CFC) posted another big loss, way off estimates of a small profit.
• Deutsche Bank AG (NYSE: DB) posted its first quarterly loss since 2003 on write-downs.
• Gardner Denver Inc. (NYSE: GDI) beat Q1 expectations and raised its outlook for the year.
• International Paper Co. (NYSE: IP) fell short of Wall Street's Q1 earnings estimates.
• Jacobs Engineering Group Inc. (NYSE: JEC) beat Q1 estimates and offered fully-year guidance.
• KBR Inc. (NYSE: KBR) Q1 profit more than doubled on arbitration benefit.
• MasterCard Inc. (NYSE: MA) topped analysts' expectations as Q1 profits more than doubled.
• Office Depot Inc. (NYSE: ODP) Q1 profits tumbled 55% but still beat analysts' estimates.

MOST NOTEWORTHY: Wright Medical, Atlas America and Delta Air Lines were today's noteworthy upgrades:

• JP Morgan upgraded Wright Medical (NASDAQ: WMGI) to overweight from neutral citing company specific momentum and the increasingly favorable orthopedic industry backdrop.
• Atlas America (NASDAQ: ATLS) was raised to outperform from market perform at Friedman Billings citing valuation and outlook for its upstream MLP.
  
• Credit Suisse upgraded Delta Air Lines (NYSE: DAL) to Outperform from Neutral citing valuation and capacity cuts. The firm also upgraded Northwest Airlines (NYSE: NWA) to outperform from neutral.

OTHER UPGRADES:

• Broadpoint raised Aventine Renewable (NYSE: AVR) to neutral from underperform.
  
• Crown Castle (NYSE: CCI) and SBA Comm (NASDAQ: SBAC) were upgraded to buy from hold at Soleil.