The FTSE 100 index fell 17.0 points to 4875.4, weighed down by ex-dividends in Antofagasta, down 53p at 1102p, BP, off 9½p at 537p, Shell, 6½p cheaper at 471p, and GlaxoSmithKline, 7p lower at 1328p. Housebuilder Bovis slumped 8p to 619½p after warning shareholders that first-half profits will be down on the £67.2m made last year.