Riyadh: The Saudi Stock Exchange main index ended trading lower today, losing 20.97 points to close at 11,658.53 points. The total value of trading reported was SAR7.3 billion. The Saudi Parallel Market Index (NOMU) ended the day by gaining 172.13 points to close at 26,317.89, with a valuation of SAR36,7 million. Source: Saudi Press Agency