Saudi Stock Exchange's main index ended trading lower today, losing 53.47 points to close, at 10,365.51 points. The total value of the trading reported was 8 billion, while the toll of shares traded was more than 321 million, divided into over 341,000 deals. The Saudi Parallel Equity Market Index (NOMU) ended the day losing 534.16 points, to close, at 23,674.95 points, with a valuation of more than SR 10 million and an overall tally of more than 192,000 stocks traded and divided into as many as 550 deals.