Andrew Left throws in the towel on his bearish call on a subprime lending stock that he now says is poised to rally

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• Andrew Left has changed his tune on a subprime auto lender he had criticized.
• His firm recently published a report on Credit Acceptance Corp, which Left now says is mispriced.
• The famed short-seller is optimistic about its growth prospects as regulatory headwinds ease.

Andrew Left has correctly called some famous market blowups, but this week, he's reversed course on a stock and is turning bullish.

The short-seller...