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Asia Opening Brief

Asia mixed as KOSPI rips on chips, yen firms on BOJ talk; US eyes ISM, NFP looms

Thursday, September 3, 2026 · what the overnight Asia session hands the US open · bias: mixed

Asia closed mixed overnight as a chip-driven KOSPI surge offset a softer Hang Seng, while yen strength on hawkish BOJ signals bleeds into a cautious US futures open ahead of today's ISM services print and tomorrow's payrolls report.

Nikkei held near record levels, up about 0.8% near 67,500, tracking Wall Street's yield-relief rally into Wednesday's close. Hang Seng slipped roughly 0.8% on profit-taking while CSI 300 ticked up near 4,690. KOSPI was the standout, ripping about 3.7% to 6,579 on Samsung and SK Hynix strength. USD/JPY unwound sharply toward 157 after BOJ's Takata floated an outsized or back-to-back hike and Ueda flagged upside inflation risk, with a soft US ADP print adding dollar-negative fuel; USD/CNH held just above 6.73.

US futures sit flat-to-firmer, Nasdaq lagging after Broadcom's soft guidance hit semis, following Wednesday's rally when the S&P added 1.1% and the Dow gained over 600 points on Fed Governor Waller saying a hike isn't warranted if inflation keeps cooling. Today's ISM services (consensus 54.5), jobless claims and trade balance set the stage for tomorrow's payrolls, with rate swaps still near coin-flip odds on a September hike.

The risk: a hot ISM services beat or a hawkish claims surprise reignites the hike trade, snapping USD/JPY back toward 160 and unwinding the tech relief rally into Friday's jobs report - watch whether Broadcom-led semis weakness spreads into the broader Nasdaq complex.

Levels that framed this session

WatchUSD/JPY 157 handle on BOJ hike odds; KOSPI chip-momentum spillover
CatalystISM Services 10:00ET (cons. 54.5), jobless claims, trade balance; NFP Friday
SPY flip≈765, today's premarket reference — reclaim keeps dip-buyers engaged into NFP
QQQ support≈705-708, semis weakness (AVGO guidance) the swing factor
SPY call wall≈770 round-number resistance, capped by AVGO-led chip drag

This note is written from live dealer positioning.

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