Saudi Arabian shares rose to the highest in more than five months, led by banks, as manufacturing reports bolstered global economic optimism before the release of earnings in the Arab world\'s biggest economy. The Tadawul All Share Index increased 0.7 per cent to 6,452.38, the highest level since August 1. Al Rajhi Bank rose the most since March 20. Halwani Brothers Co. gained the most since December 25 after announcing plans to increase meat processing capacity in Egypt.