Check out this morning's top movers from around Wall Street, compiled by The Fly. 

HIGHER - 

• Waddell & Reed (WDR) up 49% after announcing it has entered into a merger agreement with Macquarie Asset Management, the asset management division of Macquarie Group (MQBKY), under which Macquarie would acquire all of the outstanding shares of the company for $25.00 per share in cash representing total consideration of $1.7B

UP AFTER EARNINGS - 

• Michaels (MIK) up 5%
• Signet Jewelers (SIG) up 9%
• Build-A-Bear (BBW) up 14%
• Kirkland's (KIRK) up 3%
• Azek (AZEK) up 1%
• MEI Pharma (MEI) up 3%

DOWN AFTER EARNINGS - 

• Kroger (KR) down 4%
• Dollar General (DG) down 1%
• Express (EXPR) down 25%
  
• Splunk (SPLK) down 22%

LOWER -

• Codexis (CDXS) down 4% after 4.289M share spot secondary priced at $17.50
• Stitch Fix (SFIX) down 3% after Wells Fargo analyst Ike Boruchow downgraded shares to Underweight from Equal Weight with a price target of $27, up from $18