BlackRock Inc.’s BLK shares gained 2.3% after the company reported fourth-quarter 2019 adjusted earnings per share of $8.34, surpassing the Zacks Consensus Estimate of $7.67.Alcoa Corp. AA dropped 0.9% after the company posted fourth-quarter 2019 adjusted loss per share of $0.31, missing the Zacks Consensus Estimate of a loss per share of $0.22.Shares of UnitedHealth Group Inc. UNH advanced 2.8% after reporting fourth-quarter 2019 adjusted earnings per share of $3.90, outpacing the Zacks Consensus Estimate of $3.77.The Goldman Sachs Group Inc. GS lost 0.2% after posting adjusted earnings per share of $4.69, lagging the Zacks Consensus Estimate of $5.20.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 The Goldman Sachs Group, Inc. (GS): Free Stock Analysis Report BlackRock, Inc. (BLK): Free Stock Analysis Report UnitedHealth Group Incorporated (UNH): Free Stock Analysis Report ALCOA CORP (AA): Free Stock Analysis Report To read this article on Zacks.com click here.