Among the stock activity stories for Tuesday, Nov. 20, from AP Business News:
— Krispy Kreme Doughnuts Inc.'s stock jumped to its highest level in more than a year as the chain's third-quarter results topped analysts' estimates. It also provided a fiscal 2013 adjusted earnings forecast above Wall Street's view.
— Shares of The Medicines Co. rose after an analyst highlighted the commercial potential for two experimental drugs in the company's pipeline.
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