Japan core inflation rises as Iran war impacts energy prices

Japan’s core inflation accelerated on the back of the Iran war’s impact on energy prices. The odds of the Bank of Japan decreasing interest rates after its April 2026 meeting sit at 0.1% YES.

Market reaction

The market barely moved, with volume at just $15 in USDC traded over the last 24 hours. The odds went from 0% to 0.1% in the past week. The Iran conflict’s effect on energy prices is a bearish signal for the Bank of Japan rate decision, but traders are skeptical about any immediate BOJ rate change.

Why it matters

The face value of trades is $9,987, but only $78 is needed to move the price 5 points, so this market is thin. The Iran war’s escalation has increased energy costs and put pressure on Japan’s inflation numbers, but traders aren’t betting on a BOJ policy shift. Rising inflation from energy costs would normally argue against rate cuts, not for them, and the market reflects that logic.

What to watch

A YES share at 0.1¢ pays $1 if the BOJ decreases rates. That’s a long shot with a massive payout if it hits, and the bet implies confidence that geopolitical tensions will force the BOJ’s hand.

Watch for statements from BOJ Governor Ueda and any developments in Middle East stability. The BOJ’s policy decision is anticipated by April 28, leaving little time for traders to reposition.

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