This week's biggest % winners & losers : May 22 - 26, 17 (wk 21)

The following are this week's top 20 percentage gainers and top 20 percentage losers, categorized by sectors (over $300 mln market cap and 100K average daily volume).

This week's top 20 % gainers

• Healthcare: PBYI (79.75 +110.98%), AERI (55.9 +36.18%), MNKD (1.52 +34.51%), CO (9.09 +16.99%)
• Materials: RYAM (16.05 +21.87%), GSM (10.76 +16.83%)
• Industrials: TGI (33.25 +44.88%), TITN (17.39 +14.79%)
• Consumer Discretionary: MOD (15.2 +22.58%), GES (11.67 +18.6%), TLYS (10.15 +18.57%), BBY (58.97 +14.88%)
• Information Technology: PSTG (12.74 +28.17%), NTNX (19.59 +22.44%), STMP (141.5 +17.09%), CMCM (12.24 +16.02%)
• Financials: AFSI (14 +15.42%)
• Consumer Staples: BG (82.17 +17.92%), BRFS (14.19 +15.18%)
• Telecommunication Services: NIHD (0.74 +39.63%)

This week's top 20 % losers

• Healthcare: ARDX (4.6 -24.28%), CERS (2.35 -21.67%), LJPC (29.02 -14.65%), ALXN (97.7 -14.18%), SRPT (30.01 -13.37%)
• Materials: FRTA (7.98 -24.29%)
• Industrials: DY (82.75 -22.36%)
• Consumer Discretionary: GCO (36.75 -18.42%), CHS (9.37 -16.56%), ASNA (1.73 -16.02%), SIG (49.31 -15.92%), BZH (12.9 -13.94%), IGT (18.22 -13.24%)
• Energy: ANW (5.1 -50.49%), BRS (7.36 -48.1%), SND (10 -21.26%), NBR (8.75 -16.83%), NAT (5.97 -15.08%), FMSA (5.03 -14.89%)
• Consumer Staples: SPTN (30.82 -13.72%)