Notable tech decliners: GPRO, FIT, FEYE, AMBA, YNDX, MXWL, FUEL

• The Nasdaq is down 2.4%, and the S&P down 2%, as investors continue fleeing to safety amid ongoing Chinese worries. Not surprisingly, many high-beta tech names are seeing much steeper losses.
• 5%+ decliners include action camera leader GoPro (GPRO -7.9%), fitness band leader Fitbit (FIT -7.6%), threat-protection hardware/software provider FireEye (FEYE -7.2%), video processor developer/GoPro supplier Ambarella (AMBA -8.6%), flash storage array vendor Violin Memory (VMEM -12.7%), capacitor maker Kemet (KEM -14.6%), and cloud healthcare software firms Castlight (CSLT -8.3%) and Veeva (VEEV -6.4%).
• Others include Russian search leader Yandex (YNDX -5.9%), 3D measurement/scanning hardware firm FARO Technologies (FARO -7.5%), ultracapacitor maker Maxwell (MXWL -9.1%), car-buying site TrueCar (TRUE -8.8%), analog/mixed-signal chipmaker ON Semi (ON -5.4%), online ad platform Rocket Fuel (FUEL -6.3%), and LED/chip equipment maker Aixtron (AIXG -6.8%).
• Previously covered: Chinese tech stocks, solar stocks, Everyday Health, SunEdison, Atmel