This week's biggest % winners & losers : April 9 - 13, 18 (wk 15)

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: AVXS (211.14 +82.16%), BLCM (8.98 +40.53%), SPPI (19.22 +34.31%), GEN (1.74 +27.94%), RGNX (34.6 +27.21%), ONCE (77.04 +24.14%), SAGE (170.58 +20.7%), NSTG (9.29 +19.87%), ADAP (12.45 +19.48%), AGIO (87.33 +19.27%)
• Industrials: AVAV (56.24 +24.76%)
• Information Technology: PAY (22.77 +50.1%), AAOI (30.19 +25.32%), SCWX (9.96 +24.5%)
• Energy: STNG (2.36 +25.53%), CRC (22.26 +23.94%), RIG (11.59 +19.24%)
• Telecommunication Services: I (7.08 +38.01%)

This week's top 20 % losers

• Healthcare: ALOG (83.5 -12.43%), ACAD (18.9 -12.22%), GKOS (27.62 -11.98%), ADRO (7.2 -10.56%)
• Materials: HMY (2.09 -13.99%)
• Industrials: BW (2.46 -35.43%), AGX (37.6 -12.86%), ALGT (151.05 -12.43%), GOL (12.38 -12.26%)
• Consumer Discretionary: BBBY (17.28 -17.71%), IBP (52.05 -12%), TUP (41.71 -11.89%), CWH (27.51 -11.06%)
• Information Technology: QIWI (15.83 -14.39%)
• Financials: NMIH (14.65 -17.23%), MTG (10.77 -15.99%), RDN (16.13 -15.73%), ESNT (36.75 -12.65%)
• Energy: BPT (22.2 -10.3%)
• Telecommunication Services: MBT (9.73 -11.55%)