While the release of economic data doesn't stop next week (see economic schedule highlights below), the earnings season does wind down dramatically. Most of the S&P 500 companies already have reported on the past quarter, which means dismal earnings news is largely behind us, at least for a while. About the only companies of note expected by analysts surveyed by Thomson Reuters to report falling earnings this week are Costco Wholesale Corp. (NASDAQ: COST), Wendy's/Arby's Group Inc. (NYSE: WEN), Foot Locker Inc. (NYSE: FL), Bank of Montreal (NYSE: BMO), and Steinway Musical Instruments Inc. (NYSE: LVB).

While PetSmart Inc. (NASDAQ: PETM) and Big Lots Inc. (NYSE: BIG) quarterly profits are expected to be about the same as a year ago, Liz Claiborne Inc. (NYSE: LIZ), Kenneth Cole Productions Inc. (NYSE: KCP), Ciena Corp. (NASDAQ: CIEN), and Trina Solar Ltd. (NYSE: TSL) are expected to have swung to losses in the most recent quarter.

MOST NOTEWORTHY: Greatbatch and Blue Coat Systems were today's noteworthy initiations:

• Piper assumed coverage of Greatbatch (NYSE: GB) with a Neutral rating and $19.50 target as they believe acquisition-related expenses will weigh on near-term bottom-line results.
  
• Collins Stewart believes shares of Blue Coat Systems (NASDAQ: BCSI) are highly attractive at current levels. The firm started shares with a Buy rating and $29 target.

OTHER INITIATIONS:

• Ultra Petroleum (NYSE: UPL) was initiated at Credit Suisse with an Outperform rating and $82 target.
  
• Lehman assumed Dana Holding (NYSE: DAN) with an Overweight rating and $15 target.

Stock screeners are tools that let investors filter through a large number of stocks according to chosen criteria. It is important to remember that a stock screener is just a tool and every investment should be analyzed on its own merits to make sure it fits with your personal portfolio and risk characteristics. My weekly column finds interesting investment opportunities with the help of our Stock Screener.

Since two of the stocks I covered in the Stock Screener section had such wild movements in such a short time, I've decided to quickly take a look at all the stocks I've covered here, see what major news recently affected them and how they reacted. All returns are as of May 2nd close.

Solar Energy Stocks

On March 27th, I went over some solar energy stocks. I looked at Trina Solar Ltd. (NYSE: TSL) and Suntech Power Holdings Co., Ltd. (NYSE: STP), concluding with: "I think it may not be too late to jump on the Trina bandwagon. Suntech could prove a long-term solid player as well."

Since then, TSL returned over 24% and STP returned 5.8%.
The main catalyst in the solar energy stock was a court ruling that could pave the way to more regulations and have a positive impact on alternative energy stocks.