Oil Drops Nearly 20% in a Month on Iran Peace Hopes — but 4 Datasets Disagree

The oil price fell sharply again on Friday as US President Donald Trump said a settlement with Iran awaits only final paperwork. Brent traded near $86.30, its weakest level in almost two months.

Yet futures curve, prediction market, and derivatives data tell a more complicated story. Four datasets now disagree on how fast, and how completely, peace gets priced into crude.

Why the Oil Price Is Falling Today

Brent crude oil dropped 4.5% on Friday and has now lost almost 20% in a month. The slide accelerated after Trump told reporters the US had “made a great settlement of the war with Iran” that is “subject to finalization of documents.”

.@POTUS: "We just made a great settlement of the war with Iran, and we're going to be subject to finalization of documents, which should get done over the next few days. We'll probably have a signing, maybe in Europe — and it's a great thing." pic.twitter.com/ysy3F2WmyR

— Rapid Response 47 (@RapidResponse47) June 11, 2026

Traders sold because a signed agreement would reopen the Strait of Hormuz, the chokepoint that carried roughly 20% of global crude before the war. Restored flows would unwind the supply premium that built up during the conflict.

However, no document has been signed. Iran’s semi-official Fars agency reported Tehran would likely accept, but neither side has approved a final text. The market is therefore selling a promise, not a treaty.

Fars News Agency, close to Iran's Revolutionary Guard, reported no initial U.S.-Iran memorandum of understanding has been approved, but said Washington accepted Iran's proposed text after dropping its own clauses following Qatari mediation in Tehran.More: https://t.co/200aWwJKnb pic.twitter.com/UlItF6DGZl

— IranWire (@IranWireEnglish) June 12, 2026

The futures curve shows exactly how much peace traders have already paid for.

The Brent Prompt Spread Has Collapsed 89%

The Brent prompt spread measures the gap between the front-month and second-month oil futures contracts. A positive spread means backwardation, where buyers pay extra for immediate barrels because physical supply is tight.

Want more insights like this? Sign up for Editor Harsh Notariya’s Daily Newsletter here.

That spread peaked at $10.27 in early April, an extreme wartime scramble for prompt crude. It has since collapsed roughly 89% to $1.11, including a 12.6% drop on Friday alone.

This collapse is a bearish signal for the oil price. Physical buyers no longer pay up for immediate delivery, which means the supply panic that powered the rally is draining out of the market. The curve is effectively voting for Trump’s version of events, a deal that reopens the Strait of Hormuz and restores flows, rather than Tehran’s denial.

However, the spread has not finished the journey. The pre-war level sits near $0.24, and crossing below zero into contango would signal outright surplus. At $1.11, the curve has priced most of the peace but not all of it, leaving a sliver of doubt that matches Iran’s refusal to confirm.

That residual doubt matters because of inventories. The International Energy Agency has warned global stockpiles are depleting at a record pace. If the signing slips, a tight physical market with near-record-low inventories could snap the spread violently higher, and spot prices with it. The bearish curve signal therefore holds only as long as the deal track does.

Global oil stocks are depleting at record pace as supply losses linked to the near-closure of the Strait of Hormuz continue to mountObserved global inventories, including oil on water, declined by 250 million barrels (mb) over March & April, or 4 mb/day: https://t.co/hQNZ0TtjuZ pic.twitter.com/mc0O6CPBQe

— International Energy Agency (@IEA) May 18, 2026

So the curve backs peace while leaving the delay scenario live, and prediction markets put a number on exactly that delay.

Polymarket Says the Paperwork Is Months Away

Polymarket odds on a permanent US and Iran peace deal, backed by $293 million in volume, undercut the urgency in crude. Traders give a signed deal just 14% odds by June 15 and 33% by June 30.

Meanwhile, probability is migrating later, not closer. July 31 odds fell 10 points to 41%, while August 31 jumped 15 points to 56%. October sits at 70% and December at 75%. This could be because Trump has previously claimed something similar “deal is close” thing, close to 40 times.

WATCH: 39 times Trump has claimed a deal with Iran is "close" since the war began, per CNN.Iran has rejected all 39 of those deal-close claims, saying yesterday "all of Trump's words should be disregarded like his previous deal-imminent announcements." pic.twitter.com/Np6QAYVfj0

— The Hormuz Letter (@HormuzLetter) June 12, 2026

The two markets can both be right because they resolve on different things. Crude only needs tankers moving, and JPMorgan analysts noted surprising volumes still transit the strait. Polymarket needs a signed permanent document, a far higher bar.

Leveraged traders, meanwhile, have already chosen a side.

Options Agree With Polymarket, Hyperliquid Trades the Confusion

The United States Brent Oil Fund (BNO), an exchange-traded fund that tracks Brent futures, shows the doubt first. Its put to call ratio, which compares bearish put volume against bullish call volume, fell from 0.11 on June 8 to 0.04 on June 11. A reading that low means calls dominated the session by a wide margin.

However, the same ratio measured by open interest, the total of unsettled contracts, held at 0.10. New call buying did not stick in the standing book. The data therefore suggests traders may be purchasing cheap upside insurance against the deal collapsing rather than turning bullish outright. That is the same outcome Polymarket assigns real probability to, so the two markets are pricing one shared fear.

Hyperliquid perps play the opposite game. Nansen, an analytics platform that tracks labeled wallets, shows whales net short $16.9 million and historically profitable smart traders net short $3.4 million on the venue’s Brent contract.

Net short means these traders profit as the oil price falls, so their selling adds fuel to the very decline the headlines started. Net taker flow hit negative $58.2 million in 24 hours, confirming aggressive selling.

The funding rate runs at 17.4% annualized with longs paying. Shorts therefore earn income simply for holding, which keeps them pressing the trend while the confusion lasts.

With options hedging doubt and perps chasing momentum, the next move belongs to the negotiators rather than the traders.

A signed memorandum this weekend would validate the selling and reward the shorts. Another denial from Tehran, aligning with Polymarket odds, would leave a crowded short market exposed to a sharp snap higher in the oil price.