RIYADH: Saudi Arabia’s Tadawul All Share Index edged up on Monday, gaining 142.16 points, or 1.19 percent, to close at 12,097.40.    The total trading turnover of the benchmark index was SR6.81 billion ($1.81 billion), as 126 of the listed stocks advanced, while 96 retreated.     The MSCI Tadawul Index decreased by 19.11 points, or 1.28 percent, to close at 1,516.60.  The Kingdom’s parallel market Nomu surged, gaining 287.58 points, or 0.92 percent, to close at 31,502.85. This comes as 45 of the listed stocks advanced, while 34 retreated.