Crude oil just had its worst stretch in months, and for once, the reason is good news. The prospect of an interim US-Iran agreement designed to cool hostilities and reopen the Strait of Hormuz, arguably the most strategically important chokepoint for global energy trade, has sent oil prices tumbling and lifted risk assets across the board.

Between June 12 and June 15, West Texas Intermediate crude settled at roughly $84.88 per barrel, a 3.2% decline. Brent crude fared slightly worse, dropping 3.4% to around $87.33. Both benchmarks hit multimonth lows after flirting with $100 during the height of the conflict earlier this year.

The geopolitical risk premium is deflating

Oil prices surged more than 20% following late February 2026 escalations in the US-Iran conflict. That rally wasn’t driven by fundamentals alone. It was driven by the very real possibility that the Strait of Hormuz, through which roughly a fifth of the world’s oil passes daily, could become a flashpoint for direct military confrontation.

Now that diplomatic channels appear to be producing results, that fear premium is unwinding. From peak to trough, crude has given back more than 20% of its conflict-driven gains, essentially erasing the war premium that had built up over several months of escalation.

Prediction markets are betting on peace

On Polymarket, the implied probability of a permanent US-Iran peace deal by the end of June 2026 has climbed to 46%. The trading volume behind that number is $178 million.

Meanwhile, on May 30, authorities reported seizing approximately $1 billion in digital assets linked to Iranian connections as part of ongoing sanctions enforcement.

Bitcoin benefits from the macro thaw

Bitcoin’s price climbed roughly 2% to about $65,800 following news of the interim agreement, marking its highest level in nearly two weeks.

When oil prices spike, they ripple through supply chains, raise transportation costs, and push consumer prices higher. Central banks respond by keeping monetary policy tighter for longer, which generally suppresses risk assets, including crypto. Falling crude eases inflationary pressure, which gives central banks more room to consider rate cuts or at least pause further tightening.

There are no major energy-specific tokens directly tied to these developments, which means Bitcoin remains the primary crypto beneficiary of the shifting macro landscape.

What this means for investors

A 46% chance of a permanent deal means there’s still a 54% chance it falls apart. If negotiations stall or collapse, oil could rip back toward triple digits, dragging risk assets down with it.

The $1 billion digital asset seizure also introduces a wrinkle worth watching. Aggressive sanctions enforcement targeting crypto-linked assets could increase regulatory scrutiny on exchanges and DeFi platforms that handle cross-border flows.

The $178 million in volume around the US-Iran deal odds on Polymarket represents a maturing prediction market ecosystem that can offer both hedging opportunities and alpha for traders willing to take directional views on diplomatic outcomes.