A Wall Street analysis sent these cable giants' stocks tumbling

The bull market for cable stocks is over, one Wall Street analyst said on Tuesday -- pushing two large pay-TV providers' shares off their high perch. Shares of Comcast dipped 3.4 percent, to $40.39, after Craig Moffett of MoffettNathanson said the multiyear run-up for the shares had made them fairly priced. Moffett reduced his rating...