This week's biggest % winners & losers : Sept 18 - 22, 17 (wk 38)

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: ALNY (113.8 +49.32%), QDEL (43.1 +20.36%), LJPC (37.21 +18.2%), AXON (24.99 +17.1%), MCRB (16.75 +14.18%)
• Materials: CCC (21.4 +60.9%)
• Industrials: OA (132.64 +20.54%), AJRD (33.89 +19.63%), MTOR (26.4 +16.92%), CUB (51.6 +16.35%), HTZ (23.55 +14.49%)
• Information Technology: SSNI (16.18 +24.46%)
• Energy: SDRL (0.39 +64.84%), PGH (0.94 +50.62%), FMSA (4.19 +21.45%), CRC (10.18 +19.62%), EMES (9.17 +15.64%), TGS (20 +14.88%), CVE (10.28 +13.72%)
• Consumer Staples: REV (19.9 +23.99%)

This week's top 20 % losers

• Healthcare: ICPT (61.59 -35.09%), SUPN (39 -20.49%), KND (6.25 -13.79%), MNKD (1.98 -13.54%), IONS (51.32 -13.35%), NLNK (10.99 -13.26%), AERI (50.95 -12.61%)
• Materials: MUX (2.06 -20.16%), SBGL (4.69 -15.04%), CMP (60.1 -13.71%), HMY (1.86 -13.08%), KGC (4.25 -11.83%)
• Industrials: RUN (5.59 -16.82%), HDSN (7.94 -13.32%)
• Consumer Discretionary: BBBY (22.51 -21.49%), PIR (4.15 -20.19%), MMYT (28.45 -16.2%), RCII (10.8 -13.88%)
• Information Technology: SNCR (9.2 -42.89%), GOGO (12.45 -11.76%)