Saudi stock exchange market index recorded a slight decline in the first trading of the week as it closed down 0.24 points at 6542.40 points, and trade worth more than 3.1 billion riyals. The number of shares traded for the day amounted to more than 184 million shares through more than 70,000 transactions in which the shares of 107 companies registered rise in value today, while shares of 52 companies closed lower.