United Airlines Holdings Inc.'s UAL shares tumbled 5.7% after reporting fourth-quarter 2020 adjusted loss per share of $7, wider-than the Zacks Consensus Estimate of $6.56 loss per share.Shares of Alcoa Corp. AA plummeted 12.4% after the company expressed concerns that future performance may be affected if its markets fail to recover from pandemic-led devastations.PacWest Bancorp's PACW shares gained 1.1% after the company posted fourth-quarter 2020 adjusted earnings per share of $1.02, surpassing the Zacks Consensus Estimate of $0.67.Shares of The Travelers Companies Inc. TRV surged 2.6% after posting fourth-quarter 2020 adjusted earnings per share of $4.91, outpacing the Zacks Consensus Estimate of $3.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 Travelers Companies, Inc. (TRV): Free Stock Analysis Report Alcoa Corp. (AA): Free Stock Analysis Report United Airlines Holdings Inc (UAL): Free Stock Analysis Report PacWest Bancorp (PACW): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research