Gainers:
• $Macy's (M.US)$ +13.2% (Macy's posts strong sales growth and raises earnings outlook)
• $Dollar Tree (DLTR.US)$ +12.7% (In reaction to earnings)
• $Dollar General (DG.US)$ +11.1% (Dollar Gen beat estimated earnings by 3.88%, reporting an EPS of $2.41 versus an estimate of $2.32.)
• $Williams-Sonoma (WSM.US)$ +8.4% (In reaction to earnings)
• $Akoustis Technologies (AKTS.US)$ +6.1% (suspended sales under its previously-announced "...