RIYADH: The Tadawul All Share Index on Sunday closed marginally lower by 38.74 points — or 0.38 percent — to close at 10,251.68 points after touching a peak of 10,316.61 at 10:44 a.m. Saudi time, riding on the uncertainty that has clouded investor sentiment in the past few months. The advance-decline ratio reflected the sentiment, with 104 stocks of the listed 220 heading north, and 99 turning south. The total trading turnover was SR2.86 billion ($760 million), significantly lower than Thursday’s SR6.7 billion or Wednesday’s SR5.2 billion.