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Economic and event calendar in Asia Friday, September 18, 2026 - BoJ and RBA
Plenty of big events to come during the Asian timezone today. I'll get previews posted of all of these separately, just a few brief notes for now. Japanese inflation data for August. We have already seen Augusy CPI data for the Tokyo area:Tokyo core CPI rose 1.8% y/y in August, beating forecast
Why it matters
USD/JPY (US Dollar / Japanese Yen) · Why linked: The Bank of Japan (BoJ) policy decision is the single most important event on the Asian calendar and directly drives USD/JPY Market context: Volatile — a BoJ rate decision or policy shift can trigger large moves in USD/JPY depending on hawkishness/dovishness
AUD/USD (Australian Dollar / US Dollar) · Why linked: The Reserve Bank of Australia (RBA) rate decision directly drives AUD/USD Market context: Volatile — an RBA rate decision or guidance shift can cause significant AUD/USD repricing
EWJ (Japan ETF) · Why linked: EWJ tracks Japanese equities which are highly sensitive to BoJ policy and domestic inflation data Market context: Bullish if BoJ turns hawkish (yen weakness boosts exporters) but bearish if BoJ surprises dovishly
How EWJ usually react
This story is too recent for its own reaction record — we score each asset against the actual price move 24h after publication. These are the long-run figures across every event we have tracked for them.
| Asset | Events | Avg max move | Closed lower |
|---|---|---|---|
| EWJ | 4 | +0.91% | 50% |
Curated by Newsig — News in. Signal out.
How the reaction data is measured · Editorial policy