European Shares Decline as US-Iran Nuclear Talks Stall, Weighing on Oil Prices

European shares are set to open lower on June 19, 2026, as uncertainty surrounding US-Iran peace talks weighs on investor sentiment. Futures for major European indices indicated a weaker start, driven by stalled negotiations over the 2015 Iran nuclear deal. Pan-European STOXX 600 futures dropped 0.3%, with Germany's DAX futures and France's CAC 40 futures both down 0.4%. UK's FTSE 100 futures also fell 0.3%. The geopolitical uncertainty led to a 0.7% decline in Brent crude oil prices, trading at $73.45 per barrel. The stalled talks in Vienna aim to revive the nuclear agreement, which, if successful, could increase Iranian oil supply to global markets. This prospect, coupled with the current diplomatic impasse, is influencing broader market movements.