Bank of Japan Decision in July?

Platform comparison

Market context

The Bank of Japan will release its July 2026 Monetary Policy Statement on 31 July, determining the change in basis points for the upper bound of its short-term policy rate. Current crowd-implied odds on best-prediction-markets.co.uk show a 0% probability for any increase, diverging sharply from the June 16 board’s 7-1 vote to raise rates to 1% and its explicit pledge to continue hiking as underlying CPI inflation approaches 2%[1][2].

Historical precedent suggests the market’s zero-probability stance is an outlier; the BOJ has raised rates in six of the last eight meetings since late 2024, including a 25bp hike in June that pushed rates to their highest since 1995[4][6]. A government panel member close to the dovish Prime Minister Sanae Takaichi recently advocated for two more moderate hikes at six-month intervals, targeting a neutral rate of 1.5%, which implies a 25bp increase by July 2026 if the pace holds[3].

Traders should monitor the July 29–30 meeting schedule and any pre-meeting commentary on Middle East tensions affecting Japan’s import prices, as the BOJ explicitly flagged these risks in its June outlook[1][10]. The key catalyst is the Statement on Monetary Policy itself, released 31 July, which will confirm whether the board maintains its June trajectory or pauses amid external volatility[2]. Any divergence between the 0% market odds and the BOJ’s stated intent to normalise rates will likely correct once the statement is published.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Best Prediction Markets UK, which mirrors the Polymarket order book directly.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

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How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

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On Polymarket directly, no — it's wallet-based. Intermediary brokers like Best Prediction Markets UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.