Just before President Trump postponed strikes on Tehran’s energy infrastructure, a sudden spike in oil futures trading rattled the market. In minutes, more than $800 million of U.S. and international oil futures changed hands after the executive’s March 23 tweet. The volume surge pushed U.S. crude prices down as much as 13%, leaving traders scrambling for direction.

At least five firms recorded gains exceeding $5 million on the day, according to LSEG‑adjusted volume data. London‑based Qube Research & Technologies logged roughly $5 million in profit, while Forza Fund Ltd. netted about $10 million. Totsa, the trading arm of TotalEnergies, added a modest $200,000 as prices fell.

The Commodity Futures Trading Commission has opened a probe to determine whether an insider leveraged foreknowledge of Trump’s post or leaked the information to other traders. While no wrongdoing has been alleged, regulators are delving into algorithm‑driven trades that blur skill and luck. The investigation underscores the need for tighter surveillance in high‑frequency oil markets.

Market participants watch the inquiry closely, as the findings could prompt stricter oversight of futures desks and algorithmic strategies. If regulators confirm insider trading, penalties could ripple across the industry, affecting liquidity and pricing models. Until now, the firms involved have maintained compliance, but the case highlights how political events can swiftly translate into massive trading volumes.