Asian Market Rally and Key Drivers

Asian equity markets rose on Friday, anchored by a sharp rebound in South Korea’s KOSPI, which closed 18% higher after three consecutive session losses. The rally was led by heavyweight chipmakers Samsung Electronics (KS:005930) and SK Hynix (KS:000660), both posting strong gains after upbeat quarterly results from U.S. tech giants Microsoft and Amazon renewed confidence in AI‑related spending. Despite the Friday surge, the KOSPI remained on track for a 22% monthly decline, reflecting profit‑taking and lingering AI‑valuation concerns.

Bank of Japan Monetary Decision

The Bank of Japan (BOJ) kept its short‑term policy rate unchanged at 1.0%, voting 8‑1 to maintain the uncollateralized overnight call rate. Board member Hajime Takata dissented, advocating a rise to 1.25% due to perceived upside inflation risks from overseas demand shocks and shifting global financial conditions. The BOJ warned that inflation risks remain skewed to the upside and highlighted the need to monitor Middle‑East developments, foreign‑exchange movements, and global AI demand. Investors awaited remarks from Governor Kazuo Ueda following recent Japanese authority intervention in the currency market to curb the yen’s slide to four‑decade lows.

Japanese Economic Data

Japan’s Nikkei 225 climbed nearly 4%, supported by gains in semiconductor‑related stocks. Data released on the same day showed capital‑city inflation accelerating beyond expectations, while industrial production rose 1.3% in June month‑on‑month, beating a 1.0% forecast. Retail sales, however, increased only 0.5% year‑on‑year in June, well below the 3.1% consensus, indicating weak consumer spending.

Regional Index Movements

In addition to South Korea, other Asian indices moved as follows: Japan’s JP225 rose 3.86%; Hong Kong’s Hang Seng slipped 0.06% while its Hang Seng TECH sub‑index edged higher; Shanghai Composite gained 1% and the CSI 300 added 1.3%; Australia’s S&P/ASX 200 edged up 0.1%; Singapore’s Straits Times Index fell 0.8%; India’s Nifty 50 was up 0.2% by midday. Specific stock moves included Samsung Electronics up 26.81%, SK Hynix up 29.95%, and the broader KOSPI (KS11) up 17.91%.

U.S. Earnings Impact

U.S. markets posted strong gains, with Microsoft shares jumping 15.51% and Amazon rising 3.90% after earnings reports that reinforced optimism about sustained AI investment. The Nasdaq index advanced 2.78%, lifting broader technology sentiment across the region.

China PMI Contraction

China’s manufacturing Purchasing Managers’ Index (PMI) slipped back into contraction in July, while the non‑manufacturing PMI also weakened, underscoring persistent headwinds for the world’s second‑largest economy. Market participants continued to watch for additional policy support from Beijing.

Geopolitical and Commodity Context

Geopolitical tensions heightened as hostilities between the United States and Iran raised concerns over potential energy‑supply disruptions, adding a layer of risk to the broader market outlook.