BOJ April rate change bets collapse as inflation expectations steady

Japan households’ inflation expectations are holding steady as bets on a BOJ April rate change collapse. The probability of any rate adjustment at the April 28 meeting sits at 0.1% YES on Polymarket.

## Market reaction

The BOJ’s April 28 decision is priced as a non-event. The probability of a rate decrease is 0.1% YES across all sub-markets, unchanged from the past week. Traders have locked in a no-change scenario.

## Why it matters

BOJ statements have referenced oil-driven inflation pressures, and traders expect cautious policy normalization rather than aggressive hikes. The odds for any rate change after the April meeting are flat, pointing to strong conviction that the current 0.75% rate will hold. Middle East geopolitical tension adds a variable to oil price calculations, but it hasn’t moved BOJ rate expectations.

## Market depth

Trading volume is $8 in USDC over the past 24 hours. It takes just $114 to move the odds by 5 percentage points, a thin market where small trades can shift prices easily. The largest move in the last 24 hours was negligible, consistent with broad confidence in no rate change.

A YES share on a rate decrease is priced at 0.1¢. The payout if an unexpected shift occurs exists on paper, but nothing in current data points toward that outcome.

## What to watch

Any unexpected statements from BOJ Governor Ueda or board members that hint at a policy shift. An abrupt escalation in Middle East tensions affecting oil prices could also move the odds, though the market has so far treated that risk as marginal.

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