This week's biggest % winners & losers (May 17 - 22, 2015)

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:SRPT (26.22 +72.39%),SGYP (4.35 +23.58%),ONCE (67.53 +18.77%),SAGE (68.98 +18.04%),BLUE (178.38 +15.52%),ADXS (23.16 +15.34%)
• Industrials:EHIC (15.99 +49.57%),DY (58.96 +24.86%)
• Consumer Discretionary:SHAK (92.86 +33.82%),CVC (24.98 +22.27%),ANN (46.97 +21.34%),RRGB (85.88 +17.87%),CTRP (84.63 +17.59%),DANG (10.71 +16.03%),SGMS (14.97 +14.94%)
• Information Technology:MOMO (17.9 +44.47%),DSKY (10.54 +25.93%),RENN (3.7 +24.58%),HDP (26.52 +14.71%)
• Energy:ERN (7.85 +43.25%)

This week's top 20 % losers

• Healthcare:OTIC (24.86 -21.3%),UNIS (2.47 -17.39%),ICPT (261.46 -14.62%),DRNA (16.76 -14.14%),RIGL (3.56 -12.96%)
• Materials:BAK (8.54 -12.59%)
• Industrials:UAL (53.69 -12.84%)
• Consumer Discretionary:EVLV (3.69 -35.04%),LL (21.04 -19.88%),DL (16.3 -18.62%),ETSY (17.17 -14.36%)
• Information Technology:VHC (5.04 -16.97%),JASO (8.71 -13.85%),CSIQ(33.71 -13.23%)
• Financials:CISG (8.5 -17.87%),EJ (5.74 -14.58%),BBD (9.4 -12.56%)
• Energy:BTU (3.63 -15.38%),CHKR (7.44 -12.88%),ARP (7.51 -12.57%)