Today's noteworthy initiations include: 58.com (WUBA) initiated with a Hold at Summit Research... Aduro Biotech (ADRO) initiated with a Buy at Roth Capital... Alibaba (BABA) initiated with a Buy at Summit Research... Baidu (BIDU) initiated with a Buy at Summit Research... Callaway Golf (ELY) initiated with a Buy at Jefferies... Cellectis (CLLS) initiated with a Buy at Jefferies... Changyou.com (CYOU) initiated with a Buy at Summit Research... Cheetah Mobile (CMCM) initiated with a Buy at Summit Research... Ctrip.com (CTRP) initiated with a Hold at Summit Research... Dynegy (DYN) initiated with an Overweight at Morgan Stanley... FMC Corporation (FMC) initiated with a Neutral at Monness Crespi... Franklin Financial Network (FSB) initiated with a Buy at BofA/Merrill... Granite Construction (GVA) initiated with an Outperform at Cowen... Hershey (HSY) initiated with a Reduce at Nomura... JD.com (JD) initiated with a Hold at Summit Research... Jumei (JMEI) initiated with a Buy at Summit Research... McEwen Mining (MUX) initiated with a Buy at H.C. Wainwright... Natural Gas Services (NGS) initiated with a Neutral at Sidoti... New Residential (NRZ) initiated with a Buy at BofA/Merrill... Platform Specialty Products (PAH) initiated with an Outperform at Credit Suisse... Qihoo 360 (QIHU) initiated with a Buy at Summit Research... Qunar (QUNR) initiated with a Buy at Summit Research... SINA (SINA) initiated with a Hold at Summit Research... Smith & Wesson (SWHC) initiated with a Sector Perform at RBC Capital... Sohu.com (SOHU) initiated with a Hold at Summit Research... SolarEdge (SEDG) initiated with a Buy at Deutsche Bank... Splunk (SPLK) initiated with a Buy at Citigroup... Tableau (DATA) initiated with a Neutral at Citigroup... Team Health (TMH) initiated with an Outperform at Leerink... Tuniu (TOUR) initiated with a Buy at Summit Research... Vipshop (VIPS) initiated with a Buy at Summit Research... Vista Outdoor (VSTO) initiated with an Outperform at RBC Capital... Weibo (WB) initiated with a Buy at Summit Research... YY Inc. (YY) initiated with a Buy at Summit Research... Youku Tudou (YOKU) initiated with a Hold at Summit Research... Zhaopin (ZPIN) initiated with a Hold at Summit Research.

HSBC analyst Charlene Liu lowered the firm's price target on Baidu to $145 from $157 and keeps a Buy rating on the shares following the company's developer conference. The firm says Baidu's advertising outlook remains more challenging than it expected. It cut estimates on weaker a macro envinrment.

New option listings for April 23rd include Express Inc (EXPRQ). Option delistings effective April 23rd include PGT Innovations Inc (PGTI), NGM Biopharmaceuticals Inc (NGM), Karuna Therapeutics Inc (KRTX), KINNATE BIOPHARMA INC (KNTE), Daseke Inc (DSKE), Tritium Dcfc Ltd (DCFC), Xtrackers MSCI All China Equity ETF (CN), CymaBay Therapeutics Inc (CBAY), Alteryx Inc (AYX), XTRACKERS MSCI CHINA A INCLUSION EQUITY ETF (ASHX), Recro Pharma, Inc. (SCTL), Splunk Inc (SPLK), and Textainer Group Holdings Limited (TGH).