Last week, JA Solar Holdings Co. Ltd. (NASDAQ: JASO) posted a quarterly loss and lowered its guidance. But as interest in alternative energy continues to grow, analysts polled by Thomson Financial are still looking for good things from solar energy concerns scheduled to report earnings this week.

Strong growth at Trina Solar Ltd. (NYSE: TSL) in the third quarter prompted it to lift its guidance back in October. Analysts expect the Chinese company to post profits that are 76.3% higher than a year ago, or $1.18 per share on revenues of $268.4 million (+225.0%). Though Trina Solar missed estimates in the second quarter, analysts on average recommend buying TSL. Shares are down 81.4% from a year ago and trading near an all-time low.

Earnings of rival LDK Solar Co. Ltd. (NYSE: LDK) are expect to have risen 47.9% to $0.71 per share on revenues of $486.7 million (+206.6%). Also based in China, LDK has not missed estimates in recent quarters; in fact, it blew past expectations in the second quarter. Yet the consensus recommendation is to hold LDK. Like Trina Solar, LDK's shares are trading near an all-time low; the share price has fallen 50.0% in the past year.

Analysts anticipate third-quarter earnings for Canadian Solar Inc. (NASDAQ: CSIQ) to be a whopping 96.3% higher than a year ago, or $0.54 per share on revenues of $248.0 million (+154.5%). The company easily topped estimates in the previous quarter. ReneSola Ltd. (NYSE: SOL) and Suntech Power Holdings Co. Ltd. (NYSE: STP) are also expected to report earnings growth of 29.7% ($0.37 per share) and 23.8% ($0.42 per share), respectively. All three of these stocks reached 52-week lows last week, and all are considered buys.

If you were paying close attention to this column last week, you would have sidestepped some of the pain and misery investors in many of the stocks discussed have suffered lately. Of late, we have seen the general direction of the markets turn positive, even in the face of news to the contrary.

Perhaps it is because investors have an appetite for stocks, since there seems to be few investment alternatives. Real estate is off limits and the yield on bonds and other fixed-income investments is pathetically low.

The theme for the week ahead is SMOOTH SAILING. In this week's column, we delve into some stocks that will be announcing earnings, and that may benefit from the changing tide of investor sentiment. To be sure, there will be several areas of choppiness as we continue to be bombarded by the stormy realities of a turbulent economy.

Monday, May 19

The chart for Campbell Soup (NYSE: CPB) looks M'm M'm good. Sporting a smooth line with nary a ripple over the past 12 months, management has done a great job at keeping both company earnings and share price up, even in the face of significant food inflation. While shares have been condensing during the past few months, recently they have been rising with a series of higher highs and higher lows. Be on the outlook for earnings of 44 cents per share on revenue expectations of $1.89 billion. Now that I think of it. That's a lot of soup wrapped in tin-plated steel -- one of many materials that has seen its price almost double in the past six months.