This week's biggest % winners & losers : April 16 - 20, 18 (wk 16)

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: TLGT (3.53 +23.43%), ADMS (28.09 +16.51%), INSY (7.03 +15.63%), RGNX (39.65 +14.6%)
• Materials: VHI (8.35 +22.61%)
• Information Technology: ERIC (7.78 +24.28%), SPWR (9.69 +18.17%), VDSI (15.15 +16.99%)
• Energy: SDLP (3.31 +20.8%), EPE (1.74 +16.78%), BTE (3.83 +16.06%), OSG (3.98 +14.7%), OAS (10.16 +14.54%)
• Consumer Staples: BRFS (7.42 +16.85%)
• Telecommunication Services: I (9.31 +31.5%)

This week's top 20 % losers

• Healthcare: ACET (2.51 -64.3%), PRTK (11.00 -20.86%), AGEN (3.78 -18.71%), CLVS (50.17 -17.27%), BPMC (81.96 -17.2%), BLCM (7.52 -16.26%), NKTR (86.21 -14.22%), SAGE (148.01 -13.23%), BMY (51.17 -12.75%), GEN (1.53 -12.07%)
• Industrials: VLRS (7.01 -19.89%), MAN (101.47 -12.57%)
• Consumer Discretionary: SKX (30.7 -26.87%), PIR (2.64 -21.66%)
• Information Technology: ACIA (27.56 -31.15%), ICHR (22.48 -12.5%), OCLR (8.26 -12.31%)
• Energy: SN (3.17 -13.62%)
• Consumer Staples: PM (84.27 -17.26%)