This week's biggest % winners & losers : March 19 - 23, 18 (wk 13)

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: GERN (5.64 +67.36%), ARNA (41.88 +32.91%), HRTX (28.2 +31.16%), OMER (14.09 +26.71%), AKAO (12.88 +12%)
• Materials: KLDX (2.35 +63.19%), NG (4.61 +12.99%), NGD (2.55 +10.87%), GFI (4.1 +9.92%)
• Industrials: DXPE (39.29 +21.53%), RUN (8.43 +10.05%)
• Consumer Discretionary: GES (20.36 +36.74%), LE (21.45 +32.82%), NWY (3.50 +2.35%)
• Energy: CRC (17.24 +15.78%), SN (3.31 +12.59%), AAV (3.2 +10.34%)
• Telecommunication Services: NIHD (2.2 +20.22%)

This week's top 20 % losers

• Healthcare: ALDR (11.25 -20.49%), MACK (8.29 -19.83%), OTIC (4.05 -19.8%), ENDP (5.86 -16.41%), EXAS (4.12 -16.07%), PGNX (7.54  -10.66%)
• Materials: GSM (11.09 -31.15%), CENX (16.67 -20%), CMC (20.39 -17.21%), EGO (0.9 -15.89%),
• Industrials: RRTS (3.25 -21.5%), MLHR (30.7 -18.68%)
• Consumer Discretionary: GPRO (4.58 -17.33%), EVC (4.35 -15.53%)
• Information Technology: CARB (27.75 -16.92%), BDC (64.55 -16.35%), MTSI (17.72 -16.22%)
• Energy: DM (16.25 -24.77%)
• Telecommunication Services: IDT (10.08 -15.37%)