Here are two stocks with buy rank and strong momentum characteristics for investors to consider today, January 20th:Westlake Chemical WLK: This vertically integrated international producer and supplier of petrochemicals, polymers and building products has a Zacks Rank #1 (Strong Buy) and witnessed the Zacks Consensus Estimate for its next year earnings increasing 7.7% over the last 60 days.Westlake Chemical Corporation Price and Consensus Westlake Chemical Corporation price-consensus-chart | Westlake Chemical Corporation QuoteWestlake Chemical’s shares gained 5.3% over the last three month compared with the S&P 500’s decline of 0.8%. The company possesses a Momentum Score of A.Westlake Chemical Corporation Price Westlake Chemical Corporation price | Westlake Chemical Corporation QuoteGerdau GGB: This largest long steel producer in Latin America has a Zacks Rank #1 and witnessed the Zacks Consensus Estimate for its next year earnings increasing 17.6% over the last 90 days.Gerdau S.A. Price and Consensus Gerdau S.A. price-consensus-chart | Gerdau S.A. QuoteGerdau’s shares gained 13.9% over the last three month compared with the S&P 500’s decline of 0.8%. The company possesses a Momentum Score of A.Gerdau S.A. Price Gerdau S.A. price | Gerdau S.A. QuoteSee the full list of top ranked stocks hereLearn more about the Momentum score and how it is calculated here. Zacks Names "Single Best Pick to Double" From thousands of stocks, 5 Zacks experts each have chosen their favorite to skyrocket +100% or more in months to come. From those 5, Director of Research Sheraz Mian hand-picks one to have the most explosive upside of all. As one investor put it, “curing and preventing hundreds of diseases…what should that market be worth?” This company could rival or surpass other recent Zacks’ Stocks Set to Double like Boston Beer Company which shot up +143.0% in little more than 9 months and NVIDIA which boomed +175.9% in one year.Free: See Our Top Stock and 4 Runners Up >>Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report Westlake Chemical Corporation (WLK): Free Stock Analysis Report Gerdau S.A. (GGB): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research