Who Knew? The Iran Ceasefire Was Priced In Hours Before It Was Announced

At 6:32 PM Eastern on April 7, 2026, President Trump posted on Truth Social announcing a two-week ceasefire with Iran. Oil futures would plunge 16%. Stock futures would surge. It was the biggest geopolitical development in months. By then, it was old news on Polymarket.

The “US x Iran ceasefire by April 7?” contract had been climbing for over three hours. The catalyst was Pakistani PM Sharif's 3:16 PM tweet — a diplomatic plea to extend Trump's strike deadline and reopen Hormuz. That tweet was a public signal. What happened next was not a normal reaction to a diplomatic plea.

The market didn't nudge from 5% to 8%. It exploded to 30% within two hours. By the time Trump confirmed the deal at 6:32 PM, the market was already at 40.2% — nearly half the total move to 98%. A PM asking for an extension doesn't justify an 8x repricing. The money was trading as if the deal was already done.

One wallet — an 8-day-old account that had only ever traded ceasefire markets — placed a probe buy two hours before Sharif's tweet, then scaled into a massive position and cashed out $179K. Another wallet started buying the same minute the tweet went live. A third flipped from short to long on a $59K trade 38 minutes before Trump posted.

We pulled every trade on the ceasefire markets from our database. 29,176 trades. $11.4 million in volume. Here's what the timeline, the wallets, and the money actually show.

What Was Announced

Trump's Truth Social post announced a two-week “double sided CEASEFIRE” brokered through Pakistan. Iran agreed to the “COMPLETE, IMMEDIATE, and SAFE OPENING” of the Strait of Hormuz. Peace talks would begin Friday, April 10, in Islamabad. Iran's Supreme National Security Council confirmed the agreement shortly after, though it emphasized: “This does not signify the termination of the war.”

The timeline on April 7:

Sharif's tweet was a public diplomatic plea — not a confirmation that a deal was done. No verifiable public rumor or leak of the specific ceasefire terms circulated before Trump's post. Major outlets described the pivot as sudden, coming less than 90 minutes before Trump's self-imposed strike deadline. The prediction market, however, had been climbing since before Sharif's tweet even went up.

The Price Curve

“US x Iran ceasefire by April 7?” — YES token price, April 7, 2026. All times Eastern.

Three Wallets Under the Microscope

These accounts show patterns most consistent with foreknowledge. All data is from public Polygon blockchain transactions and the Polymarket API.

The Erasmus. Trade in Detail

The account is eight days old. Its first trade ever was a ceasefire buy. It has only traded three markets, all of them ceasefire contracts. No oil, no invasion, no regime change, no sports, no politics. Just ceasefire.

At 1:00 PM ET on April 7 — when the market was at 3% and Sharif hadn't tweeted yet — Erasmus. bought 10,362 YES shares at 3.0¢. A $310 probe. Sold it for a small profit at 3.6¢ forty-nine minutes later. Then, at 4:31 PM — now post-Sharif — started loading up: $1,232 at 13.7¢, $5,145 at 14.6¢, $5,108 at 16.6¢. The price wasn't moving randomly — Erasmus. was bidding it up.

After the Trump post, Erasmus. waited. The market hit 80%, then 90%. At 7:16 PM, Erasmus. placed a single trade: $94,955 at 95.0¢. The second-largest YES buy of the entire day. Four minutes later, sold 100,000 shares at 99.6¢ for $99,600. Then sold another 80,000 shares for $79,680.

Total realized profit from what we can see in the data: approximately $170,000. Eight days old. Three ceasefire markets. $170K realized. Bio: “Prediction markets are the future, if there is one.” Make of that what you will.

The Account That Appeared During the Dispute

sidechair1 is simpler and arguably more interesting. The account's first trade in our database was at 9:49 PM ET on April 7 — after the ceasefire was announced but while the market was still trading at 55-64¢. Why not 99¢? Because the outcome was actively disputed. Israel continued bombing during the initial hours. Iran's own statement said the ceasefire “does not signify the termination of the war.” Polymarket uses UMA's optimistic oracle for resolution, and traders were genuinely uncertain whether “ceasefire” would meet the contract's settlement criteria.

Into that ambiguity, sidechair1 placed 8 trades over 34 minutes, all in the same direction: buy YES on “Ceasefire by April 15.” Total: $75,814. The account has never traded any other market. There is no prior trade history. It appeared, placed $75K in bets, and went quiet.

If the April 15 ceasefire resolves YES — which at 99%+ appears near-certain — sidechair1's shares are worth approximately $125,000 on a ~$50K profit. That's a 66% return in hours, made possible because the resolution dispute created a pricing gap between “the ceasefire happened” and “the contract will pay out.”

The $59K Flip

MisTKy is not a new account. With $1.28M in total volume across 16 markets and 158 trades, this is one of the most active Iran-focused traders on Polymarket.

Through April 6, MisTKy was heavily short ceasefire. Over $34,000 in ceasefire NO positions at 92-95¢ on April 2 and April 6. Plus $79,800 in “US forces enter Iran by April 30” YES at 99.5¢ — a bet that the war would continue.

Then at 5:54 PM ET on April 7 — 2.5 hours after Sharif's tweet and 38 minutes before Trump's post — MisTKy sold $59,161 of “US forces enter Iran” YES shares at 99.0¢. That is the single largest risk-off trade in the pre-confirmation window. Sharif's plea was public by then, but this trade doesn't say “maybe there's a deal.” It says “the deal is done.” One of the biggest Iran-focused traders on the platform went from invasion bull to ceasefire buyer 38 minutes before Trump. That's not random-walk behavior.

MisTKy then bought ceasefire YES starting at 11.4¢, averaging 17.8¢ across 5 trades totaling $13,253.

The Rest of the Pre-Confirmation Buyers

Top YES buyers on “Ceasefire by April 7” before Trump's 6:32 PM post. Sorted by total spend.

After the Post: The Feeding Frenzy

Largest trades in the first 2.5 hours after Trump's 6:32 PM Truth Social post.

Within 3 seconds of Trump's post, Kickstand7 placed a $79K buy at 64¢. bbbbbbbbbbb6686 sold $137K of invasion bets and rotated $48K into ceasefire YES at 90¢. steeplejack was the biggest post-announcement player — approximately $290K in ceasefire YES buys plus a $271K sell of “Forces enter Iran” shares. ChinaBoomPow, a 6-day-old account that had been betting NO ($5,869 at 87¢), cashed out $35.3K at 99.1¢ at 8:01 PM. The first minute after the post saw more volume than the previous hour.

Total Volume: $11.4 Million in One Day

The “Ceasefire by April 7” contract alone did $8.6M — more than many stock IPOs trade on their first day. The parent event (“US x Iran ceasefire by…”) has done $150.8M in total volume since its creation on February 28.

The Days Before: April 5-6

The April 7 ceasefire market was not entirely flat before the 7th. On April 5, the price tripled from 0.95¢ to 3.35¢ with no obvious news catalyst. On April 6, it briefly spiked to 7.7¢ at 4:03 AM ET before fading back to 2%.

The biggest pre-positioning buyer on April 5-6 was an account called NOTHINGEVERFRICKINGHAPPENS, who accumulated $4,933 of YES at an average of 4.7¢. If they held through resolution, that position is worth approximately $105,000.

Whether these early moves reflect informed trading or heightened speculation around Trump's escalating rhetoric is impossible to determine from trade data alone. What is clear is that the prediction market was moving toward “ceasefire” days before any public signal.

The Resolution Dispute

As of publication, the “Ceasefire by April 7” market has not fully resolved. Polymarket uses UMA's optimistic oracle for resolution, and this market has gone through multiple rounds of proposal and dispute. Some traders argue that the ceasefire doesn't count because Israel continued bombing during the initial hours, or because Iran's statement explicitly said the ceasefire “does not signify the termination of the war.”

The YES token is trading at 99.55¢ as of April 8, 2026, 2:00 AM ET, indicating the market expects YES resolution. But the dispute explains why post-announcement trades were still being placed at 55-65¢ rather than 99¢ — and why sidechair1's $75K position, bought in the dispute window, could be worth $125K. The resolution risk was real, and pricing it correctly was its own edge.

What the Data Shows

Let's be clear about what we know and what we don't.

Sharif's 3:16 PM tweet was a public signal. Anyone could have read it and decided to buy. Much of the volume after 3:16 PM could be explained by smart traders reading between the lines of a diplomatic plea during a live crisis with a strike deadline hours away. That's not insider trading — that's market efficiency.

But the degree of the reaction is what doesn't add up. A Pakistani PM asking for a deadline extension moved this market from 5% to 40%. That's not “maybe there's a deal” pricing — that's “the deal is done” pricing, three hours before it was confirmed. And some of the wallet-level evidence is hard to explain away:

1. At least one account was built for this trade. Erasmus. — 8 days old, only ceasefire markets, probe buy two hours before Sharif's tweet — then scaled into a massive position and cashed out $179K. That's not a retail trader reacting to news.
2. A sophisticated trader flipped direction 38 minutes before Trump's post. MisTKy sold $59K of “Forces enter Iran” YES at 5:54 PM — the largest risk-off trade in the pre-confirmation window. Sharif's tweet was three hours old by then. This trade priced in the deal itself.
3. The early money made 33x. Post-announcement buyers made 2.5x. Trump's post moved the price 22 points in three minutes, but the market had already moved 36 points before he posted. Whoever drove the pre-confirmation move captured most of the value.
4. $11.4M in volume and 29,176 trades on a market that was at 3.8% that morning. On any exchange, this kind of volume spike on a low-liquidity contract hours before a major announcement would trigger a review.

Prediction markets live in a legal gray area. The definition of “insider trading” on prediction contracts is largely untested. We don't know who these wallets belong to, and we're not alleging anyone broke the law.

But this is what on-chain markets give you that traditional finance doesn't: every trade, every wallet, every timestamp, fully public. If the same thing happened in oil futures or options, you'd never see the data. On Polymarket, the receipts are on the blockchain. Draw your own conclusions.