Shares in communications electronics group Intelek fall after it reported a drop in first half profits but said it remains confident in the future of the group. Curiously though, the technology hardware and equipment sector is one of today's heaviest falling sectors, with Pace, the set-top box maker, one of the companies posting significant losses.With shares generally falling off, defensive stocks such as the electricity provider Scottish and Southern Energy and the water group Pennon are in demand. Top performing sectors so far todayElectricity 6,313.04 +1.54%Gas, Water & Multiutilities 3,859.78 +1.15%Automobiles & Parts 2,768.27 +0.77%Mobile Telecommunications 3,225.26 +0.75%Aerospace and Defence 2,961.50 +0.61%Bottom performing sectors so far todayIndustrial Metals 4,575.69 -2.16%Technology Hardware & Equipment 343.41 -1.79%Electronic & Electrical Equipment 1,574.86 -1.56%Chemicals 4,603.44 -1.53%Industrial Engineering 3,998.80 -1.40%