Shares of Enphase Energy, Inc. ENPH gained 1.5% after S&P and Dow announced that the technology company will replace Tiffany’s in the S&P 500 benchmark from Jan 7.Celsius Holdings, Inc.’s CELH shares jumped 13.3% after the S&P Dow Jones Indices said that the beverage company would enter the S&P SmallCap 600 benchmark as of Jan 7.Shares of Exxon Mobil Corporation XOM declined 0.9% after the company announced that it is expecting to write down $18 billion to $20 billion of upstream assets.Tribune Publishing Company’s TPCO shares gained 7.1% after a securities filing revealed Alden Global Capital made a $14.25-PER-SHARE non-binding shares it doesn’t own in the company. 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 Exxon Mobil Corporation (XOM): Free Stock Analysis Report Enphase Energy, Inc. (ENPH): Free Stock Analysis Report Celsius Holdings Inc. (CELH): Free Stock Analysis Report TRIBUNE PUBLISHING CO (TPCO): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research