This week's biggest % winners & losers (December 26 - 29, 2017)

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: INSY (9.62 +35.11%), ATRA (18.1 +16.03%), IMMU (16.16 +10.31%)
• Materials: MTL (5.26 +24.94%), FRTA (11.1 +10.89%)
• Consumer Discretionary: HOV (3.35 +19.64%)
• Information Technology: QIWI (17.33 +22.3%), SFUN (5.58 +20.52%), CMCM (12.08 +15.16%), TIVO (15.6 +11.03%)
• Financials: GCAP (10 +32.28%)
• Energy: CIEIQ (0.93 +25%), PES (3.05 +24.49%), SD (21.07 +16.28%), CRC (19.44 +13.82%), EPE (2.36 +12.92%), CVRR (16.55 +11.45%), AXAS (2.46 +11.31%), DNR (2.21 +9.95%)
• Telecommunication Services: NIHD (0.42 +14.68%)

This week's top 20 % losers

• Healthcare: PTLA (48.68 -11.27%), EVH (12.3 -9.56%), NK (4.49 -7.99%), AGEN (3.26 -7.91%), CHRS (8.8 -7.85%), GNMK (4.17 -7.74%), ITCI (14.48 -7.71%), ONVO (1.34 -7.59%), CERS (3.38 -7.14%)
• Consumer Discretionary: ENT (2.29 -8.76%), ELY (13.93 -7.99%), RH (86.21 -7.22%)
• Information Technology: ADTN (19.35 -14.19%), DDD (8.64 -9.24%), INFN (6.33 -8.26%), LITE (48.9 -7.39%), SYNT (22.99 -7.04%), CALX (5.95 -7.03%)
• Financials: PSEC (6.74 -7.16%)
• Energy: CLMT (7.7 -9.94%)