Donald Trump's abrupt reversal on the Iran deal during a weekend announcement has traders scrambling as markets operate in darkness. The former president's moves, occurring outside regular trading hours, force investors to react without immediate liquidity or price discovery. This pattern of late-night gambits creates volatility that spills into Monday sessions, catching institutions off guard. The Iran deal reversal demonstrates how non-market-hour announcements can destabilize portfolios before official trading resumes. Market impact is immediate but muted until liquidity returns, leaving traders to navigate uncertainty with limited tools. Weekend gambits like this highlight the growing disconnect between political maneuvers and traditional market mechanics, demanding new risk management strategies. Traders brace for continued unpredictability as Trump's post-presidency influence persists beyond conventional timelines.