An index of mining stocks declined 0.4%. Luxury-goods maker Richemont [ JSE:CFR ] slipped 1%, despite analyst rating upgrades from HSBC Holdings and Exane BNP Paribas. Bank stocks were weaker as the rand retreated against the dollar. An index of lenders slid for a third day, with FirstRand [ JSE:FSR ] down 1% and Standard Bank [ JSE:SBK ] falling 0.7%. Still, the main South African stock index is up 0.6% since Monday, heading for a third successive weekly gain for the first time since August.