On its first trading day of this week, the Saudi Arabian Tadawul market dived 5% to close at 5,950.64 points. Uncertainty over the outcome of the civil war in Libya, with the opposition’s objective to oust Colonel Ghadafi as head of state, weighed on the market on Sunday. The day before on Saturday, the Tadawul bourse remained closed in honour of the return of HH King Abdullah Bin Abdulaziz, Custodian of the Two Holy Mosques, after three months of medical treatment in the US and Morocco. Market bellwether SABIC plunged 3.38%, ending at SR93.00. Out of 145 traded securities, National Metal Manufacturing and Casting Co. was the sole gainer, closing 2.70% higher at SR34.20.