As the American government falls into partial paralysis, crypto prediction platforms Polymarket and Kalshi find themselves at the heart of a troubling controversy. Their contracts, supposed to allow traders to bet on this event, reveal major flaws in their formulations.
In brief
- The US government enters a partial shutdown this weekend following the delay in the House of Representatives vote.
- Contracts on Polymarket and Kalshi have a 99% probability of closure, but their rules lack clarity.
- Confusion reigns over the exact definition of a “government shutdown” according to these platforms.
When crypto betting contracts are confusing
The US Senate approved a crucial funding bill on Friday evening. Problem: the House of Representatives, on parliamentary recess, will only be able to vote from Monday. This unprecedented situation places the government in a state of partial paralysis throughout the weekend.
On Polymarket, a contract called “US government shutdown on Saturday? » displays a probability of 99%. But by reading the fine print, we discover a disturbing subtlety. The contract is not based on the actual closure, but on an announcement from the Office of Personnel Management (OPM).
In other words, without official communication from OPM, the contract could say “no” even if services are truly paralyzed.
Kalshi does not escape this ambiguity. His contract “Government shutdown today? » requires a notice to appear on the OPM website on January 31 at 11 a.m. Eastern Time.
This dependence on a web display, rather than on administrative reality, perfectly illustrates the current limits of these decentralized platforms. Traders find themselves betting not on an event, but on its numerical representation.
The puzzle of counting the days
The confusion reaches its peak with contracts relating to the duration of the closure. A Polymarket contract allowed betting on periods of 1+, 2+ or 3+ days, all showing scores above 99%. But what does “three days” really mean? The discussions are igniting the specialized forums.
If President Trump signs the funding bill on Monday, will that constitute three full days? Some traders argue that it takes a full 72 hours to validate this option.
Others believe that any signature before midnight Monday would automatically invalidate the third day. This legal uncertainty transforms what should be a simple calculation into a real mathematical and temporal puzzle.
On Kalshi, the contract “How many days will the federal government be paralyzed before March?” » displays more than 98% chance for the “more than two days” option. But here again, the modalities remain unclear.
These platforms, although in full expansion, struggle to precisely define the events on which their contracts relate. A troubling paradox for services supposed to offer transparency and certainty to users.
This case comes at a time when prediction markets are experiencing spectacular growth. Kalshi recorded $466 million in transactions on January 12, accounting for 66% of the total industry volume. But without standardizing rules and clear definitions, these crypto platforms risk losing the trust of the institutional traders they ardently court.
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