Netflix (NFLX) shares rose Wednesday on an otherwise down day for the stock market, driven by continued speculation that it's an acquisition target and a new report showing its dominance in online video streaming. Netflix was put in play by billionaire investor Carl Icahn, who has acquired nearly a 10% stake in the company. Icahn says Netflix stock is undervalued and that the company would make a good acquisition for Amazon.com (AMZN), Microsoft