The Stockholm Stock Exchange posted a sudden and sharp rally on Monday, driven by unconfirmed reports circulating on social media that mediators have proposed a 10-day ceasefire between the United States and Iran.

The OMX Stockholm 30 index climbed significantly in early trading, reflecting a rapid repricing of geopolitical risk.

Swedish financial media noted the abrupt shift in market tone, highlighting how quickly speculative news can alter trading dynamics when geopolitical tensions are high.

Investors appeared to bid up equities on the prospect of de-escalation in the Middle East, which has long weighed on global risk sentiment and energy markets.

The catalyst for the move was not an official diplomatic announcement but rather rumors spreading across social platforms.

Swedish financial media noted the abrupt shift in market tone, highlighting how quickly speculative news can alter trading dynamics when geopolitical tensions are high.

Traders should approach the rally with caution.