RIYADH: Saudi Arabia’s Tadawul All Share Index closed at 12,261.18 points on Monday, losing 1.46 points, or 0.01 percent.      MSCI Tadawul 30 Index lost 0.40 points or 0.03 percent to finish at 1,536.44.      The parallel market, Nomu, also fell 256.47 points, or 0.96 percent, to conclude the day at 26,433.91.      The main index posted a trading value of SR9 billion ($2.4 billion), with 85 stocks advancing and 137 declining. On the other hand, Nomu has 26 gainers and 40 losers, reporting a trade volume of SR35.9 million.