US July CPI came in soft and PPI printed flat at 0.0% MoM against a +0.2% expectation, driving Federal Reserve September hike odds materially lower and lifting risk appetite across Wall Street. The tame inflation backdrop supported the S&P 500 to fresh records near 7,799 and propelled Nasdaq higher by 0.81%, with Communication Services and Technology leading US sector gains. Against this dovish US pivot, Japan's July PPI surged 7.2% YoY, reinforcing Bank of Japan tightening expectations and keeping the yen under pressure near 159.5 per dollar. Geopolitical risk remained an undercurrent, with reported Houthi drone incidents near Saudi facilities and Hormuz Strait concerns lending residual support to crude oil despite inventory builds and softer demand signals.
The US inflation relief drove a broadly constructive risk tone heading into the Asia-Pacific session, though the picture is uneven across regional markets. The Nikkei VIX spiked 28.29% — a significant volatility signal for Japanese equities — even as the Nikkei 225 itself gained 0.83%, suggesting options markets are pricing elevated near-term uncertainty around BoJ policy. The ASX 200 closed the prior session down 0.45% with REITs, Consumer Discretionary and Financials the main drags, and the domestic calendar today features RBA Governor Bullock speaking at 09:30 AEST, which will be closely watched for any shift in tone following the RBA's second consecutive hold at 4.35%. With the AUD/USD flat at 0.7064 and iron ore holding around US$95 per tonne, commodity-exposed names will take their cue from overnight US sentiment and any Bullock commentary on the rate outlook.