RIYADH: Saudi Arabia’s Tadawul All Share Index edged up on Thursday, gaining 70.56 points, or 0.57 percent, to close at 12,388.15.  The total trading turnover of the benchmark index was SR5.95 billion ($1.58 billion), as 95 of the listed stocks advanced, while 137 retreated.     The MSCI Tadawul Index increased by 13.19 points, or 0.86 percent, to close at 1,551.49.  The Kingdom’s parallel market Nomu rose, gaining 44.37 points, or 0.14 percent, to close at 31,474.69. This came as 40 of the listed stocks advanced, while 47 retreated.