This week's biggest % gainers/losers (May 27 - 31, 2013)

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

• Technology: SONS (3.19 +34.02%), CLWR (4.47 +33.14%), WFR (8.11 +28.26%), PWRD (15.43 +23.26%), CSIQ (8.5 +21.81%), GAME (4.13 +21.22%)
• Services: STEI (13.02 +44.4%), RUE (41.95 +22.74%), BWS (20.96 +21.28%)
• Industrial Goods: CPST (1.16 +37.08%)
• Healthcare: INFI (26.93 +25.35%), IMMU (3.88 +24.84%), ACRX (8.87 +23.28%), VRX (91.65 +21.63%), DYAX (3.15 +21.34%)
• Consumer Goods: SFD (32.94 +28.29%), TSLA (98.29 +20.3%)
• Basic Materials: TRX (3.17 +28.35%), HCLP (22.41 +22.18%), SA (11.92 +20.87%)

This week's top 20 % losers

• Technology: VIPS (29.81 -12.44%), OIBR (1.87 -11.26%)
• Services: ENOC (13.48 -21.75%), SHLD (48.8 -17.15%), ARO (14.69 -12.19%), DRYS (1.86 -11.48%), GLP (33.1 -11.12%)
• Industrial Goods: MRC (28.36 -17.22%)
• Financial: NBG (7.18 -46.84%), HGSH (9.63 -16.84%), NMR (7.82 -12.39%), WPC (67.56 -11.99%), HCP (47.34 -11.61%), MTU (5.95 -10.96%), NNN (36.03 -10.89%)
• Basic Materials: IVAN (1.22 -12.77%), CLF (18.19 -12.48%), MMLP (41.02 -11.08%), HK (5.29 -10.73%)