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Asia Opening Brief

KOSPI melts up 3.6% on chip-stake report, Nikkei follows; yen pinned near 159.50 into US PPI

Thursday, August 13, 2026 · what the overnight Asia session hands the US open · bias: mixed

Asia closed split down the tech axis: Korea ripped, China lagged, Japan firm, dollar-yen sticky at the highs.

The KOSPI was the story, up roughly 3.6% to a fresh high as Samsung and SK Hynix surged on reports Temasek is taking stakes in both, dragging the AI-hardware trade higher across the region. The Nikkei added about 1.2% to 68,300, Topix up 0.9%, both riding the same semis-and-AI-capex bid plus a wholesale inflation print. The mainland lagged the region again — CSI 300 down roughly 0.6%, Shanghai Composite off 0.5% — while the Hang Seng slipped modestly into the close, an underperformance that keeps the China-reopening trade on ice. USD/JPY held near 159.4-159.5, having clawed back roughly half of the drop from Tokyo and Washington's record coordinated intervention two weeks ago; USD/CNH continues to trade as a beta play on the yen, drifting with it rather than on its own fundamentals.

Read-through to the US open is constructive but data-dependent. July CPI landed in line Wednesday, and futures are pointing to a modestly firmer open — S&P and Nasdaq both green — with the focus now on this morning's PPI print and jobless claims for confirmation the disinflation trend holds. Brent near 88 and WTI near 83 on unresolved Hormuz tension keep an energy bid embedded under the tape.

The risk: a hot PPI surprise reverses the in-line CPI relief and reprices September hike odds higher, while 159-160 on yen is the line where fresh MOF/Fed intervention chatter could whip both JPY and CNH violently.

Levels that framed this session

WatchUSD/JPY 159.5-160 intervention line; Hang Seng/CSI 300 lag vs KOSPI melt-up; Hormuz oil risk premium
CatalystJuly PPI + initial jobless claims, 8:30am ET
SPY flip~788 indicative (no live GEX — reason from tape, CPI-in-line/PPI-pending backdrop)
QQQ support~615 indicative, tied to semis/AI-capex leadership holding
SPY call wall~798 indicative, record-high magnet zone

This note is written from live dealer positioning.

The same gamma data behind it — the flip, the call and put walls, and where price sits between them — is on the terminal for any ticker, updated through the session. Every setup we publish carries its entry, stop and target before the trade, and gets graded in the open afterwards.

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