The Australian Securities Exchange (ASX) is expected to open lower following heightened tensions between the United States and Iran. Despite ongoing diplomatic talks in Switzerland involving Vice President Mike Pence and Iranian officials, US President Donald Trump has continued to issue threats towards Iran. This ongoing uncertainty is prompting investor caution and is likely to impact the Australian market. Analysts predict a shaky start to the week as investors react to the volatile geopolitical situation. The situation remains fluid, with market reactions closely tied to further developments in US-Iran relations and the outcome of the diplomatic discussions. The ASX’s performance will be closely watched as a barometer of regional investor sentiment.