Traders on the prediction market platform Kalshi now assign a 21% implied probability to the United States Treasury completing a Bitcoin (BTC) purchase by January 1, 2028, according to a report from COINOTAG. The shift in the contract's pricing stands in contrast to an otherwise flat market: Bitcoin's price sits near $79,800, down 0.3% over the past 24 hours, making the move in the odds a policy story rather than a spot-flow one. In practical terms, traders are treating the outcome as roughly a one-in-five chance — a notable but minority expectation rather than a consensus call.

Kalshi operates as a regulated event-contract exchange in the United States under the oversight of the Commodity Futures Trading Commission (CFTC). Its binary contracts trade in a range of 1 to 99 cents, with each cent corresponding to one percentage point of implied probability. A price of 21 cents therefore reflects a market-implied 21% chance that the referenced event — a US Treasury purchase of Bitcoin before January 1, 2028 — takes place by the deadline. The contract settles at $1 if the event occurs and $0 if it does not. That structure turns the contract into a continuously updating gauge: as new information about the policy reaches traders, the price adjusts and the implied probability moves with it, offering a running read on how the market weighs each development. The COINOTAG report noted that the ask on the 2028 contract was flagged, with further detail available in the full article.

The contract is tied to a policy question that has run through Washington's digital-asset discussions: whether the US government should acquire Bitcoin beyond the holdings it has accumulated through law-enforcement forfeitures. In March 2025, an executive order established a Strategic Bitcoin Reserve capitalized with Bitcoin already in federal possession and tasked the Treasury Department with custody and management of the assets. The order also contemplated acquiring additional Bitcoin through budget-neutral methods that would not impose costs on taxpayers. Because the reserve was built from coins the government already held, a purchase on the open market would take the Treasury from passive custody of forfeited assets into active acquisition — the specific scenario the contract is pricing. Whether the government should make outright market purchases has remained an open question among policymakers, and event contracts such as this one allow traders to price that prospect directly. In the run-up to the January 1, 2028 deadline, the contract's price offers a way to observe how that debate evolves as news on the reserve and its funding emerges.

This article is based on reporting first published on COINOTAG: https://en.coinotag.com/kalshi-21-percent-odds-us-treasury-buying-bitcoin-btc-2028