Mako Surgical soared $13.29, or 82 percent, to $29.46 after medical technology company Stryker said it would buy Mako for $1.65 billion, or $30 per share.
Ascena Retail Group shares jumped $2.74, or 16 percent, to $20.06. The parent company of Lane Bryant, Dressbarn and Maurices, reported results that were significantly better than financial analysts expected in its most recent quarter.
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