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

• Advance Auto Parts Inc. (AAP) was downgraded due to concerns about its 2010 earnings outlook.
• Analogic Corp. (ALOG) received an analyst's downgrade after it reported weaker-than-expected earnings.
• AutoZone Inc. (AZO) strong Q1 results beat earnings expectations, but shares rose only a little.
• BWAY Holding Co. (BWY) received an analyst's upgrade following release of its Q4 results.
• Casey's General Stores Inc. (CASY) topped Q2 earnings estimates but lower revenue fell short.
• Ciena Corp. (CIEN) shares plummeted after it fell short of its earnings expectations for Q4.

National Beverage Corp. (FIZZ), whose brands include Shasta, Faygo, LaCroix, Everfresh and PowerBlast, posted its fiscal second quarter mid-year (six months) financial results Thursday morning.

For the three months that ended October 31, the Ft. Lauderdale-based bottler and distributor said it earned $8.3 million, or 18 cents per share. That compares with EPS of 14 cents in the year-ago period, as well as the 17 cents per share expected by analysts polled by Thomson Reuters. Revenue grew to $149.6 million from $144.4 million a year ago, but fell short of the $150.2 million forecast by analysts.