Saudi Stock Exchange's main index ended trading lower here today, losing 225.02 points to close at 12,689.87 points. The total value of the trading reported was SAR 9.9 billion, while the toll of shares traded was over 204 million, divided into over 451,000 deals. The Saudi Parallel Equity Market Index (NOMU) ended the day gaining 146.60 points, to close at 22,687.47 points, with a valuation of SAR 23 million and an overall tally of more than 384,000 stocks traded and divided into as many as 1,410 deals.