Mobile phone satellite operator Inmarsat is leading the mobile telecommunications sector higher after first half profits surged forward as earthquakes in Haiti and Chile boosted the use of its broadband service.For the second day in a row, investors have no appetite for food stocks in a week in which soaring wheat prices have been causing concerns. Hovis bread maker Premier Foods and Unilever, the household goods group whose brands include Flora spread and Hellman's mayonnaise, both of which posted results this week, are lower.Top performing sectors so far todayMobile Telecommunications 3,502.85 +0.86%Electronic & Electrical Equipment 2,140.55 +0.65%Software & Computer Services 640.27 +0.39%Oil & Gas Producers 7,133.87 +0.36%Construction & Materials 3,398.97 +0.17%Bottom performing sectors so far todayFood Producers & Processors 4,527.84 -2.58%Beverages 8,292.81 -2.51%Household Goods & Home Construction 5,794.62 -1.88%Insurance (non-life) 1,493.25 -1.54%Automobiles & Parts 3,483.72 -1.39%