Polymarket end-May Hormuz normalisation odds fell to 12.5% from 35.5% after Trump rejected Iran's proposal. WTI crude's 42% rally since late February sets up a test of $102.54 resistance.
President Trump's rejection of Iran's latest proposal on Sunday removed the near-term prospect of a second round of US-Iran peace talks. The immediate consequence is an extended closure of the Strait of Hormuz, now in its third month, and a higher probability that crude supply disruptions persist through at least mid-year. The diplomatic reset forces traders to price a prolonged blockade rather than a quick resolution, setting up a test of the $102.54 resistance level on WTI crude oil futures.
From the pre-war baseline of 27 February 2026 through 8 May 2026, WTI crude surged 42%, making oil the top-performing asset class over that period. The rally reflects persistent supply disruption concerns and an elevated geopolitical risk premium that has overwhelmed any demand-side worries. The rejection of Tehran's response removes the primary headwind that had capped crude below $102.54 in early May.
The core obstacle remains the transfer of Iran's enriched uranium. Without an agreed framework for that transfer, no dates for peace talks are on the horizon. The US-Iran ceasefire that has held since 8 April 2026 has not translated into any easing of the Hormuz blockade. Shipping traffic remains severely restricted, and the global energy supply chain is absorbing the cumulative loss of flows.
The uranium transfer is not a technical footnote. It is the central confidence-building measure that would unlock broader negotiations. Without it, the US administration lacks domestic political cover to pursue talks, and Iran has no incentive to ease the blockade. The rejection of Tehran's latest response on Sunday signals that the gap remains wide, and the timeline for any resolution has been pushed out indefinitely.
The ceasefire has prevented a wider military escalation, however it has done nothing to restore oil flows. The market is now forced to price a scenario where the blockade extends through the summer, tightening physical supply balances each week. The diplomatic path that had offered a potential off-ramp is closed for the foreseeable future.
Polymarket data shows a rapid unwinding of the optimism that had been built into crude prices last week. On 7 May, markets assigned a 35.5% probability that Strait of Hormuz traffic would return to normal by the end of May. By 12 May, that figure had been slashed to 12.5%. The June probability fell even more sharply, from 60.5% to 37.5% over the same five-day window.
The 23-percentage-point drop in the May contract is not marginal repricing. It represents a wholesale abandonment of the diplomatic-deal thesis. Traders who had bet on a quick resolution are being forced to cover, adding upward pressure to crude prices.
The June probability collapse from above 60% to below 40% signals that even a mid-year resolution is now viewed as unlikely. The market is pricing a blockade that lasts at least through the second quarter, with the risk that it extends further.
The daily chart shows WTI crude consolidating near the top of its March/April 2026 medium-term range. The $95.00 level is the key short-term pivotal support. A sustained move above $102.54 would confirm a volatility bullish breakout, with the next resistance levels at $108.20 and $112.84.
The rejection of the diplomatic path removes the primary headwind that had kept crude below $102.54. If the blockade extends into June, the supply-demand balance tightens further, and the technical breakout becomes a higher-probability event. The chart pattern shows a series of higher lows since late March, with the $95.00 floor holding on every pullback.
A daily close above $102.54 would confirm the breakout and open the path to $108.20, the next significant resistance from the March spike. Beyond that, $112.84 marks the 2026 high. The speed of the move would depend on whether the breakout attracts fresh momentum buying or triggers stop-loss orders from remaining shorts.
With the market now priced for a prolonged blockade, any hint of renewed diplomacy would have a disproportionate impact. The asymmetry is that good news is now more disruptive than bad news.
A credible announcement of a date for US-Iran talks, or a breakthrough on the uranium transfer, would be the fastest path to lower crude prices. Even a partial easing of the blockade, such as allowing humanitarian or limited energy shipments, could take the extreme tail risk off the table. The Polymarket probabilities would need to recover above 50% for the June window to signal a genuine shift in market expectations.
Any escalation beyond the current blockade, such as a direct military incident in the Gulf, or a breakdown of the existing ceasefire, would send crude through the resistance levels rapidly. A further collapse in Polymarket odds below 10% for May and below 30% for June would indicate that the market has fully priced out any diplomatic solution in the first half of 2026. In that scenario, the $108.20 and $112.84 targets become the base case, not the bull case.
Beyond the headlines, the structure of the oil futures market is amplifying the move. The 42% rally has been driven by a combination of short covering and fresh long positioning, as funds that had bet on a quick diplomatic resolution have been forced to reverse. The speed of the Polymarket repricing suggests that the speculative community is now net long and underweight any downside hedges.
While the latest Commitment of Traders data is not yet available for this week, prior reports showed managed money increasing net long positions in WTI crude. The rejection of the peace talks likely accelerated that trend. The risk is that positioning becomes one-sided, creating the conditions for a sharp breakout or an equally sharp reversal if a diplomatic surprise emerges. The weekly COT data will be a critical check on how extended positioning has become.
Liquidity on the offer side above $102.54 could be thin, amplifying any breakout. The combination of elevated net longs and limited selling interest above resistance means that a move through that level could accelerate quickly. The dollar has been range-bound, as noted in recent forex market analysis, and has not provided a strong headwind or tailwind for crude. The US inflation print later this week could shift rate expectations, however the dominant driver for crude remains the physical supply disruption, not the dollar.
The oil market has moved from pricing a potential peace dividend to pricing a protracted supply crisis. The technical levels are clear, and the probability data confirms the shift. The next 1-3 days are a binary setup: a daily close above $102.54 confirms the breakout and opens the path to $108.20, while failure at that level, combined with any hint of renewed diplomacy, would keep crude range-bound between $95.00 and $102.54. The Polymarket odds for end-May and end-June are the real-time sentiment gauge. A move back above 20% for May would be the first sign that the diplomatic path is being reconsidered.
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