Here are three stocks with buy rank and strong momentum characteristics for investors to consider today, Nov. 6:Roku, Inc. (ROKU) : This operator of a TV streaming platform has a Zacks Rank #1 and witnessed the Zacks Consensus Estimate for its current year earnings increasing 83.3% over the last 60 days.Roku’s shares gained 27.2% over the last three months compared with the S&P 500’s advance of 6.8%. The company possesses a Momentum Score  of A.Fox Corporation (FOXA) : This news, sports, and entertainment c ...