AbbVie Inc.’s ABBV shares plummeted 16.3% after the company announced that it had entered into an agreement to buy Allergan plc AGN in a $63 billion dealLennar Corporation’s LEN shares lost 6.2% after the company reported second quarter fiscal 2019 earnings per share of $1.30, lower than the year-ago quarter of $1.58 a shareShares of Xencor, Inc. XNCR gained 13.9% after the company announced that it would replace HFF, Inc. HF in the S&P SmallCap 600Shares of USANA Health Sciences, Inc. USNA gained 7.6% after the company announced that it would replace Fidelity Southern LION in the S&P SmallCap 600 on Jul 1, 2019Want 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 AbbVie Inc. (ABBV): Free Stock Analysis Report Allergan plc (AGN): Free Stock Analysis Report Fidelity Southern Corporation (LION): Free Stock Analysis Report Lennar Corporation (LEN): Free Stock Analysis Report Xencor, Inc. (XNCR): Free Stock Analysis Report USANA Health Sciences, Inc. (USNA): Free Stock Analysis Report HFF, Inc. (HF): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research