July 13, 2026
The Iran board on Polymarket keeps producing the most interesting divergences on the platform right now, and today's snapshot shows three markets moving in directions that don't quite line up with each other. A blockade market that gained 18.5 points on the week just gave back 11 points in a single day. Meanwhile, US invasion odds keep drifting up. And a Kharg Island territorial market is quietly ticking higher on tiny liquidity.
None of this is a trade recommendation — it's a research prompt. Let me walk through what I'm watching.
The "Will the US announce a blockade on Iran by July 31?" market is currently pricing 30.0% Yes. That number alone isn't especially remarkable — but the path to get here is.
Over the last 7 days, this market has climbed +18.5 points. In the last 24 hours, it dropped 11.0 points. That kind of two-way volatility on a $1.43M total-volume market with only $75,429 in liquidity is exactly the setup where prediction market odds can whip around on relatively modest flow.
When a binary market with thin liquidity moves 30 points net over a week, two things are usually happening: real news catalysts are hitting the tape, and positioning is thin enough that even mid-sized orders shift the mark. The 7-day gain suggests something concrete drove a re-rating higher; the 24-hour reversal suggests either a headline faded or a large holder took profit. Either way, this is a market where liquidity depth deserves a closer look before assuming the current 30% is a stable equilibrium.
The "Will the U.S. invade Iran before 2027?" market is now at 17.5% Yes, up +1.0 in the last 24 hours and +6.0 over the week. This is a heavyweight market — $40.8M in total volume — with far more depth than the blockade contract. When a market this size grinds up 6 points in a week without a single dramatic candle, that's the kind of move that tends to reflect a broader repricing rather than a single headline.
The interesting thing in my polymarket analysis here is the relationship between these two contracts. A blockade is a much lower-intensity action than an invasion, so you'd expect blockade odds to sit meaningfully above invasion odds if both are trading rationally. Blockade at 30% vs invasion at 17.5% respects that ordering, but the gap has compressed as invasion odds climbed. Worth tracking whether that spread widens or narrows further.
The "Kharg Island no longer under Iranian control by July 31?" market sits at 2.5% Yes, up +1.9 on the week. Small absolute number, but that's roughly a doubling from where it was a week ago.
Long-shot markets like this one need to be read carefully. A move from ~0.6% to 2.5% is mathematically a 4x, but in absolute terms it's noise-level. What makes it worth flagging is the direction — it's moving up alongside invasion and blockade odds. When multiple related Iran escalation markets trend the same way, that's a signal to add the cluster to a watchlist and monitor for confirmation.
The "Strait of Hormuz traffic returns to normal by July 31?" market is at 3.0% Yes, down -12.4 points on the week. In other words, the market's confidence that shipping normalizes by month-end has collapsed. That's directionally consistent with the escalation cluster above — if a blockade is more likely and invasion odds are drifting up, Hormuz normalization by July 31 gets less plausible.
Cross-market coherence like this is one of the more useful things prediction market odds give you. Individual markets can be noisy; a whole cluster telling the same story is harder to dismiss.
Two things I always double-check before treating any of these numbers as signal:
I track these Iran markets daily and post the snapshots in the free Telegram channel — no picks, no execution, just the numbers and what changed since the previous reading. If you want the cluster view rather than one market at a time, that's where it lives: @PolymarketView.
The format is simple. Each entry records the price, the 24-hour change, the 7-day change, and the liquidity figure at the time of observation. Over a few weeks that builds a picture of which markets are re-rating on substance and which are just bouncing around thin books. The blockade contract is a good example of why the journal matters: a single snapshot showing 30.0% tells you almost nothing, while the sequence — up 18.5 on the week, down 11.0 on the day — tells you the market has no settled view yet.
Three things, in order of how much they'd change my read on the cluster.
First, whether the blockade market stabilizes or keeps oscillating. If it holds near current levels for several consecutive days on similar volume, that's a sign the re-rating has been absorbed. If it keeps swinging in double-digit increments, the thin liquidity is still doing most of the work and the price is closer to noise than to a forecast.
Second, the spread between blockade and invasion. The logical ordering — a lower-intensity action pricing above a higher-intensity one — currently holds. If that gap compresses much further, or inverts, one of the two markets is mispriced relative to the other, and the question becomes which. Compression driven by the invasion market rising is a different story than compression driven by the blockade market falling.
Third, the resolution language. This is the part people skip. "Announce a blockade" is not the same as naval activity that looks like a blockade; "no longer under Iranian control" needs a definition of control and a source that confirms it; "traffic returns to normal" needs a baseline for normal. Before treating any of these prices as a probability estimate, read the resolution criteria on the market page itself. More disputes come from ambiguous wording than from surprising events.
None of the above is a recommendation to enter any position. It's a catalyst check and a set of research prompts — the markets are listed, the numbers are as observed on July 13, 2026, and the rest is your own homework.
Because the order book doesn't have enough resting depth to absorb sizeable flow without the price walking. The blockade market showed $176K in 24h volume against roughly $75K of liquidity — that means turnover is real, but a mid-sized order can still shift the mark several points. On a deeper market like the invasion contract, with $40.8M in total volume, the same order would barely register. That's why I read a move in a thick market differently from an identical-sized move in a thin one.
Sometimes, but rarely on its own. The Kharg Island market going from well under one percent to 2.5% is a large relative change and a tiny absolute one. In isolation I'd treat it as noise. What makes it worth logging is that it moved in the same direction as the blockade, invasion, and Hormuz markets over the same window. Cluster coherence is the signal; a single long shot ticking up is not.
Dated markets carry time decay in the sense that the remaining window for a qualifying event shrinks every day. With roughly two and a half weeks left from this snapshot, a "Yes" on the July 31 contracts requires a specific, verifiable action inside that window — not just continued escalation. The invasion market runs to a much later horizon, which is one reason its price behaviour looks calmer. Always check the deadline and the resolution source before comparing two markets side by side.