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Trading ended on Mar 31, 2026. The prices below are the last ones before it closed and no longer update. Browse open markets
Consensus blends each venue’s last price, weighted by how much has traded there. Best Yes price is the cheapest ask across venues, and the payout is what a winning $100 stake returns before fees. Open a row for each venue’s contract name, bid and ask, and how closely their rules match.
Prices come from our regular polls of each venue, the oldest 175 days ago. Ages are as of when this page was built.
The leading outcome on both venues, with the consensus between them. Hover for exact values.
Each venue’s resting orders for the selected outcome’s Yes contract, side by side. Top of book streams live; depth refreshes every 15 seconds.
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Enter a stake to see where it buys the most after fees, using each venue’s live order book.
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Buys at the asks resting now (taker orders), cheapest after fees first, from order-book snapshots up to 15 seconds old. Fees: Kalshi 0.07 × price × (1 − price) per share, rounded up to the cent; Polymarket 0.05 × price × (1 − price) per share (other / general rate). Fee calculator. Estimates only, not advice.
Final prediction market prices for "Saudi Arabia military action against Yemen by...?". April 30 last traded at 0.4%. $66K has traded across 1 outcome on Polymarket. The market closed on Mar 31, 2026.
This market will resolve to "Yes" if Saudi Arabia initiates a drone, missile, or air strike on Yemeni soil or any official Yemen embassy or consulate by the listed date, 11:59 PM Arabian Standard Time (GMT+3). Otherwise, this market will resolve to "No". For the purposes of this market, a qualifying "military action" is defined as the use of aerial bombs, drones or missiles (including cruise or ballistic missiles) launched by Saudi Arabia's military forces that impact Yemen ground territory or any official Yemen embassy or consulate (e.g., if a weapons depot on Yemen soil is hit by an Saudi Arabian missile, this market will resolve to "Yes"). Missiles or drones that are intercepted and surface-to-air missile strikes will not be sufficient for a "Yes" resolution, regardless of whether they land on Yemen territory or cause damage. Actions such as artillery fire, small arms fire, FPV or ATGM strikes directly, ground incursions, naval shelling, cyberattacks, or other operations conducted by Saudi Arabian ground operatives will not qualify. The resolution source will be a consensus of credible reporting. If no qualifying strike is confirmed by the resolution date, this market will remain open until the end of the second day after the resolution time. If the date/time of a qualifying strike cannot be confirmed by a consensus of credible reporting by that time, it will resolve to "No" regardless of whether a strike was later confirmed to have taken place.
It is the price of a Yes contract that pays $1 if the outcome happens. A 14¢ price means traders put the chance near 14%. Where two venues list the same outcome, we blend their last prices, weighting the venue with more trading volume more heavily (neither counts for less than a quarter). When only one outcome can win, each venue’s prices add up to a little over 100% (its margin); the fair chance removes that margin so the outcomes add up to exactly 100%.
A Yes contract pays $1 if it wins, so at the best ask a $100 stake buys 100 ÷ ask contracts. At 18¢ that is about 555 contracts, paying $556 (5.56x) if Yes happens. Venue fees and price slippage on larger orders are not included.
Each venue has its own traders, fees and order book. Contracts can also settle on slightly different terms, which is why each row lists how closely the rules match.
Only when you can buy Yes on one venue below what someone pays for Yes on the other, after fees, and both contracts settle the same way. We show the executable bid and ask so you can check.
Venue prices refresh every few minutes, and the order book and live quotes stream continuously. Each venue’s card shows when we last observed it.