Saudi Stock Exchange's main index ended trading lower here today, losing 12.83 points to close at 11,975.14 points. The total value of the trading reported was SAR 5.1 billion, while the toll of shares traded was over 152 million, divided into over 310,000 deals. The Saudi Parallel Market Index (NOMU) ended the day gaining 95.38 points, to close at 21,056.03 points, with a valuation of SAR 27.2 million and an overall tally of more than 520,000 stocks traded and divided into as many as 2,517 deals.