Government Shutdown Odds: How Prediction Markets Price a Shutdown

TL;DR

• Federal funding runs through December 11, 2026 under H.R. 6500, signed September 2, 2026. If Congress passes neither full-year bills nor another stopgap by then, a funding gap could begin December 12.
• A government shutdown contract prices one question: will funding lapse? Each price is the market's implied probability, and the contract usually pays out only on a lapse that meets its own rules.
• Polymarket and Kalshi can price the same deadline a few points apart, and Limitless, Predict.Fun and Opinion each decide which shutdown contracts they list. Check every board before comparing.
• A shutdown price jumps when the deadline changes. The House passed a December 4 date before the Senate's December 11 version became law, which is a reminder that the date itself can move.

Wondering about the odds of a government shutdown before the next funding deadline? Federal funding is set to run through December 11, 2026, and prediction markets turn the chance that it lapses into a price you can read.

Polymarket and Kalshi have both listed shutdown contracts, and the number you see depends on which deadline the contract names. This guide shows how to read it, how the platforms differ, and what to check before you quote one. The numbers come from prediction market data across the five platforms PredictionHero tracks.

What Are the Odds of a Government Shutdown at the December 11 Deadline?

The market currently prices a shutdown at the December 11 deadline at 33%.

The deadline comes from H.R. 6500, the Continuing Appropriations and Extensions Act, 2027, which the President signed on September 2, 2026. It funds agencies at current levels through December 11. If Congress has not passed regular appropriations bills or another stopgap by then, the Congressional Research Service notes a funding gap could begin December 12.

Until that date, agencies are funded and there is no shutdown to price. The contracts are pricing what happens next.

How Does a Government Shutdown Contract Work?

Each outcome trades between $0 and $1, and the price is the market's implied probability. A shutdown contract at $0.25 means the market gives a shutdown a 25% chance. Traders with money on the line set that number.

What counts as a shutdown is the part worth reading. A lapse in appropriations means agencies must begin shutting down most activities that lack funding, according to the Congressional Research Service. A contract can define that moment in its own way, including how long a lapse must last to count.

That is why the contract's rules matter as much as its price. Our guide to how to read the rules covers what to look for before you rely on a number.

Why Does the Deadline Date Matter So Much for the Odds?

A shutdown can only start when funding runs out, so the price clusters around the deadline. As the date gets closer, the market reprices every time a vote count, a negotiation or a headline changes how likely a lapse looks.

The date itself can also move. The House passed a version of the stopgap that ended on December 4, and the Senate version moved it to December 11, according to the Congressional Research Service. The law that was signed uses the later date.

That is a useful habit for anyone reading these markets. Check which deadline a contract names, because a contract tied to an old date answers a different question than one tied to December 11.

What Do Polymarket Government Shutdown Markets Show Compared With the Other Platforms?

Polymarket government shutdown markets show the same deadline through a different crowd. On the current deadline, Polymarket prices a shutdown with Democrats winning the house at 92%0.

Kalshi is a CFTC-regulated exchange, and its Kalshi government shutdown contract prices the same question at 33%-2.

If those two numbers differ, that is normal. It does not mean one platform is wrong. Each venue has its own traders and liquidity, and its own settlement rules. That is the subject of our piece on why odds disagree across platforms.

Opinion is built around macro contracts, so its board is worth a look for the same deadline. Limitless and Predict.Fun round out the five platforms PredictionHero tracks.

Which shutdown contracts each one lists changes as a deadline gets closer, so check each board directly. PredictionHero lines up prediction market data from all five platforms on one screen, so the spread between platforms is visible without opening five tabs.

How Do You Read a Shutdown Price Close to the Deadline?

Run through five checks, in this order.

1. Timestamp. Shutdown prices move with every headline. A number from this morning may be stale by tonight.
2. Which deadline. A December 11 contract and a contract for a later date answer different questions.
3. The definition. Read how the contract defines a shutdown and how long it must last.
4. Depth. Check volume and spread alongside the last trade. A thin market is closer to a few opinions than a consensus. Our look at how liquidity differs across platforms shows why.
5. A second platform. One venue can lag. Two venues that agree are harder to dismiss.

A price is a probability, not a verdict. A contract at 10% still resolves yes about one time in ten.

What Happens to a Shutdown Contract if Congress Passes Another Stopgap?

The contract for that deadline resolves no, and the market moves to the next deadline. Shutdown contracts are usually written around a specific funding date, so the price you see next is a new contract with a new date.

That structure is covered in our guide to recurring contracts, which explains how to read a chain of contracts instead of a single one.

For anyone tracking this over months, follow the sequence. The price of each new contract tells you how the market's view of the next deadline compares with the last.

Sources

• The White House. "Congressional Bill H.R. 6500 Signed into Law." September 2026. whitehouse.gov
• Congressional Research Service. "Overview of Continuing Appropriations for FY2027 (Division A of P.L. 119-103)." Report R49353. everycrsreport.com

PredictionHero aggregates publicly available prediction market data for informational purposes only. This is not financial advice. Prediction markets may not be available in all jurisdictions.