This week's biggest % gainers/losers (August 12 - August 16, 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: VLTR (22.8 +55.64%), UBNT (29.47 +33.16%), FENG (8.91 +23.33%), OLED (35.46 +23.05%)
• Services: DGIT (12.32 +23.96%)
• Healthcare: OSIR (19.48 +90.37%), NPSP (23.7 +27.18%), ANAC (10.61 +26.21%)
• Financial: EJ (6.07 +41.29%), NOAH (18.37 +35.31%)
• Basic Materials: EXK (5.25 +36.32%), MUX (2.52 +31.96%), FSM (4.34 +31.83%), RBY (1.76 +30.3%), SVM (3.77 +29.45%), IAG (6.31 +29.2%), WG (9.47 +27.42%), AG (14.78 +24.65%), SSRI (9.13 +24.2%), CDE (15.92 +22.42%)

This week's top 20 % losers

• Technology: SSNI (23.65 -22.84%), CREE (57.12 -22.78%), CSIQ (11.47 -19.21%), YOKU (21.24 -15.59%)
• Services: MM (6.93 -25.2%), OWW (9.68 -24.25%), VIPS (39.9 -18.87%), LCC (16.01 -17.18%), NDLS (41.25 -15.78%), GTN (6.69 -14.23%), UAL (30.86 -13.53%), ONE (8.83 -12.84%)
• Industrial Goods: CPST (1.16 -18.38%), PGEM (15.78 -16.97%)
• Healthcare: DNDN (3.18 -31.37%), SNTA (5.76 -14.24%), SRPT (33.08 -13.05%)
• Basic Materials: ALDW (15.73 -18.84%), MCP (6.17 -15.11%), IOC (71.7 -14.47%)