Madrid\'s stock market slipped 0.36 percent at the start of trading on Monday after the conservative Popular Party won a huge election victory on promises to fix an economic and financial crisis. The IBEX 35 stock index was 0.36 percent lower at 8,280.2 points. The party\'s leader Mariano Rajoy is under pressure to reassure markets after Spain\'s cost of borrowing rose to dangerous levels last week.