Riyadh, August 31, 2023, The main index of the Saudi Stock Exchange closed today's trading lower, down 83.55 points to 11491.20 points. The overall reported trading volume was SAR 8.7 billion, with 306 million shares changing hands. The Saudi Parallel Market Index (NOMU) lost 1.90 points to finish the day at 2364.33 points, worth SAR 60.6 million.