Saudi Arabian shares rose the most in almost three weeks on bets third-quarter earnings will beat estimates and amid speculation European policy makers are examining measures to shield banks from the debt crisis. Saudi Arabian Fertilizer Co., a unit of Saudi Basic Industries Corp., rose 3.2 percent. Jarir Marketing Co. rallied to the highest since July as profit at the kingdom's biggest retailer of books and personal electronics beat expectations. The Tadawul All Share Index gained 0.62 percent, the most since Sept. 17, to 6,002.09 at close Wednesday. The measure lost 1.8 percent this week. “Local markets are being impacted by changes in sentiment and global markets are looking healthy,” said Paul Cooper, Dubai-based managing director at Sarasin-Alpen & Partners Ltd.