Asian Markets Today August 21, 2026: Nikkei Falls 0.33%, Hang Seng Gains 0.76%, KOSPI Rises 1.05% Amid Mixed Global Cues

Asian Markets Today: Performance at a Glance

Index	LTP	Change	Change %
Nikkei 225	66,000.00	-216.79	-0.33%
Straits Times	5,664.12	-7.79	-0.14%
Hang Seng	25,895.00	+196.51	+0.76%
Taiwan Weighted	45,146.41	+212.67	+0.47%
KOSPI	6,924.70	+72.12	+1.05%
Jakarta Composite	6,524.65	+23.06	+0.35%
Shanghai Composite	3,908.29	+4.57	+0.12%

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Why Are Asian Markets Mixed Today?

US Bond Yield Stress Continues

US Treasury yields resumed their climb after Wednesday's US Treasury buyback intervention provided only a temporary one-day relief from the selloff. The resumption of yield pressure is negative for rate-sensitive sectors across Asia, particularly real estate and technology, which explains the Nikkei's weakness.

Gulf Diplomatic Deadlock Lifts Oil to 1-Month High

A diplomatic deadlock in the Gulf lifted oil prices to one-month highs, raising inflation concerns. The US-Iran war continuing to disrupt supply from key Middle East producing regions means Brent crude is at $93.82 per barrel — a 1-month high — creating an inflationary overhang for oil-importing Asian economies including India, Japan, and South Korea.

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Impact on Indian Markets: What to Expect Today

The mixed Asian cue — with Japan down and China/Hong Kong slightly positive — is a broadly neutral global backdrop for the Nifty 50 today. The more significant headwinds for India are the US yield stress and rising oil prices. Brent crude at $93.82 per barrel is a near-term negative for India's current account and for oil marketing companies. Monitor pre-market Gift Nifty for the earliest indication of Indian market direction today.

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Frequently Asked Questions

How are Asian markets performing today on August 21, 2026?

Ans. Asian markets today are mixed. The Nikkei fell 0.33% to 66,000 and the Straits Times fell 0.14% to 5,664. Gainers include KOSPI (+1.05% to 6,924.70), Hang Seng (+0.76% to 25,895), Taiwan Weighted (+0.47%), Jakarta Composite (+0.35%), and Shanghai Composite (+0.12%).

Why is Nikkei falling today?

Ans. The Nikkei is falling 0.33% today as US Treasury yields resumed their climb after a brief one-day relief from Wednesday's Treasury intervention. Rising yields pressure rate-sensitive technology and real estate stocks in Japan. Oil prices at one-month highs also weigh on Japan's import-dependent economy.

Why is KOSPI rising today?

Ans. The KOSPI gained 1.05% to 6,924.70 on August 21, 2026. South Korea's export-heavy economy benefits from improving China demand signals reflected in the Hang Seng and Shanghai gains today. The semiconductor and technology component of the KOSPI tends to trade on different drivers than Japan's export stocks.

What is the impact of oil prices on Asian markets today?

Ans. Oil prices rose to one-month highs at Brent $93.82 per barrel on Gulf diplomatic deadlock related to the US-Iran war. This is a net negative for oil-importing Asian economies including India, Japan, South Korea, and Taiwan, as it raises import costs and fanning inflation concerns.

How will Asian market cues affect the Nifty today?

Ans. Mixed Asian cues — Japan down, China/Hong Kong up — provide a broadly neutral backdrop for Nifty 50 today. The bigger headwinds are US yield stress and $93.82 Brent crude. Monitor Gift Nifty futures for the pre-market Indian market direction signal before the NSE open.