Saudi Stock Exchange's main index ended trading lower here today, losing 58.55 points to close at 12,530.34 points. The total value of the trading reported was SAR 7 billion, while the toll of shares traded was over 167 million, divided into over 380,000 deals. The Saudi Parallel Market Index (NOMU) ended the day gaining 252.01 points, to close at 22,272.02 points, with a valuation of SAR 22 million and an overall tally of more than 297 million stocks traded and divided into as many as 1,981 deals.