A Reversed Ceasefire Sent the Dow Down Nearly 600 Points

Major indexes fell and oil prices jumped after President Trump said the ceasefire between the US and Iran was “over” and threatened further strikes, reversing what had briefly looked like a stabilising geopolitical picture. The Dow’s near-600-point decline reflected how quickly markets can reprice when a de-escalation narrative that investors had started to rely on suddenly reverses.

Sessions like this highlight a genuine challenge with geopolitical risk specifically: unlike economic data, which arrives on a predictable schedule and can at least be modeled in advance, geopolitical developments can shift entirely within a single social media post or press statement, with no advance warning built into market pricing. That unpredictability is part of why geopolitical shocks tend to produce sharper, faster market moves than most economic releases.

It’s also why building portfolios resilient to this kind of headline risk matters more than trying to anticipate any specific geopolitical outcome. Nobody can reliably predict when a ceasefire will hold or break, or how markets will react in the moment it does either. A diversified, long-term allocation doesn’t need to get that call right — it’s built to absorb the volatility either way while remaining positioned for the years-long trend underneath the day-to-day noise.