Escalating conflicts in the Middle East and spreading political unrest across Europe are weighing on global investment sentiment, leaving Thailand's stock market vulnerable to further volatility in the near term, according to Globlex Securities. Wilasinee Boonmasungsong, research director at Globlex, expects the Stock Exchange of Thailand (SET) index to move between 1,530 and 1,580 points this week, with the domestic market likely to track weakness in overseas equities.