You could say that Apple Computer ( AAPL) has been hit by an anxiety attack -- the market's. Since the beginning of the year, fears of one kind or another have been weighing on the company's stock. Investors have fretted about a lofty valuation, disappointing guidance, disruptions in the company's computer sales and slowing sales and potential delays in new releases of its iPod digital music players. The most recent worry is that Apple will get caught up in the stock options backdating scandal that's plaguing the tech industry. Accordingly, after two years of outsized returns, Apple's stock has taken a tumble. In the year to date, the shares are off 26%, but they've fallen 39% since hitting an all-time high in January. Industry analysts suggest that investors may have gotten a bit too pessimistic about the company's prospects. At least as far as Apple's operations go, the signs are still positive on the whole, they claim. "How many quarters has it been that everyone's been saying, 'This quarter there's a huge MP3 slowdown, and the iPod numbers are going to be way down,' then Apple announces, and lo and behold they're not?" says Chris Crotty, a senior analyst who covers the consumer electronics industry at market researcher iSuppli. "It's almost like people want to see Apple fail for some reason." Industry analysts insist that Apple is doing anything but that. The company is maintaining its dominance in the MP3 player market, they say. And, they add, Apple is poised to gain share in the market for notebook computers, the fastest-growing segment of the PC industry. Analysts and investors will get a clearer idea of how Apple is performing late Wednesday when the company reports its fiscal third-quarter earnings. For their part, Wall Street analysts have remained relatively bullish on the company. Despite the selloff, the average analyst has a buy recommendation on the stock and expects the company to continue posting strong earnings gains, according to Thomson First Call.