Apple's stock rebounded today from a several-day slump, gaining $29.57 to $609.70 by the market's close, up 5.1% from its Tuesday opening price.

Shares had been on the slide since April 10, when they dropped $7.79 from the closing of the day before. In the stretch April 10-16, Apple's share price plummeted a cumulative $56.10, or nearly 9%.

Apple's share price has not yet returned to its 52-week high, however, which was set at $644 a week ago today.

Yesterday, one Wall Street analyst said there was no clear explanation for Apple's share price dip.

"We are not hearing anything new or incremental for the weakness in Apple stock," said Brian Marshall of International Strategy & Investment Group (ISI), in a note to clients on Monday. "We believe this could be a simple 'collapsing' on its own weight given the year-to-date move of Apple up approximately 45%, while the S&P 500 has been up about 10%."

Apple's uptick came alongside general gains in the market Tuesday, when the NASDAQ gained 2% and the Dow was up 1.5% at today's close.

Gregg Keizer covers Microsoft, security issues, Apple, Web browsers and general technology breaking news for Computerworld. Follow Gregg on Twitter at @gkeizer, on Google+ or subscribe to Gregg's RSS feed. His email address is [email protected].

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