Asian stocks surge powers Hang Seng, Kospi, Nikkei 225 amid US-Iran deal hopes

Asian stocks surge powers Hang Seng, Kospi, Nikkei 225 amid US-Iran deal hopes
Crispus Nyaga
29 May 2026, 05:17 AM

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Nikkei 225 (buy)

Buy Nikkei 225 exposure (e.g., iShares Nikkei 225 ETF, EWJ). The article flags a record-high Nikkei on risk-on US-Iran deal hopes plus falling oil and yields—exactly the combo that lifts Japanese cyclicals and reduces discount-rate pressure. AI momentum (Nikkei tech leadership) adds follow-through as earnings expectations stay bid.

Key Risk: The US-Iran deal collapses or Strait of Hormuz reopening fails, sending oil back up and forcing Japan yields higher.

KOSPI / Samsung & SK Hynix (buy)

Buy KOSPI exposure (e.g., iShares MSCI South Korea ETF, EWY) with a tilt to semis (Samsung Electronics, SK Hynix). Lower crude/oil and easing bond yields support Korea’s rate-sensitive growth. The AI boom is already lifting the biggest winners (Samsung, SK Hynix), so the next leg is multiple expansion plus continued capex optimism.

Key Risk: AI/semis demand disappoints (or export restrictions tighten), breaking the earnings narrative even if rates stay easy.

  • Top Asian indices continued their uptrend amid hopes of a US-Iran deal.
  • Crude oil prices continued falling, with the West Texas Intermediate falling to $87.
  • The indices are also being boosted by the ongoing AI boom.

Asian stocks continued their uptrend today, May 19, as investors adopted a risk-on sentiment amid hopes of a deal between the US and Iran. In Japan, the blue-chip Nikkei 225 Index soared by 2.30% to a record high of ¥66,120. It has soared by 31% this year.

In Hong Kong, the Hang Seng Index rose to H$25,275, up from this week’s low of H$24,722. South Korea’s Kospi Index continued its bull run, reaching a record high of KRW 8,400, up by 100% this year and 210% in the last 12 months. 

Nikkei 225, Hang Seng, Kospi jump amid peace deal hopes

Asian stock indices like the Nikkei 225, Hang Seng, and Kospi jumped as investors cheered a potential deal between the US and Iran. 

This deal will see Iran reopen the Strait of Hormuz and the US end its blockade against its ports. It will then lead to a surge in crude oil shipments, benefiting top Asian countries that depend on the region. It will also lead to a surge in fertilizer and helium shipments. 

The hopes for a deal have pushed crude oil prices lower, with Brent moving to $91 and the West Texas Intermediate (WTI) falling to $87. Natural gas prices have also continued to move downwards amid hopes of more supplies. 

Lower crude oil prices and increased supplies will solve one of the biggest challenges facing Asian markets this year. It will ensure that central banks don’t move to aggressively hike interest rates to combat inflation.

Indeed, data shows that bond yields in select Asian countries have continued moving downwards this week. For example, South Korea’s ten-year bond yield dropped to 4.078% from the year-to-date high of 4.3%.

The same happened in Hong Kong, where the ten-year yield dropped to 3.25% from the year-to-date high of 3.31%. In Japan, the ten-year fell to 2.64% from this month’s high of 2.8%.

AI boom is boosting Asian stocks

The Nikkei 225 and Kospi indices are also being boosted by the ongoing artificial intelligence boom. Indeed, some of the biggest gainers are in the technology industry.

In South Korea, Samsung and SK Hynix have soared and moved into the trillion-dollar club. Only the US, Taiwan, and South Korea have companies valued at over $1 trillion. 

LG Electronics stock jumped by over 23% after the company inked several automotive deals with Google. It said:

“The solution supports automakers to significantly reduce the cost of deploying multi-display in-cabin systems.”

Similarly, in Japan, Softbank's stock price has soared to a record high this year, helped by its investments in companies like SB Energy and OpenAI. It has jumped by over 297% in the last 12 months, with its Vision Fund powering its profit engine.

The only place left behind in the AI boom is Hong Kong, where top technology companies have pulled back substantially. For example, Alibaba stock price has retreated by 34% from its highest point last year. Tencent has also plunged by over 35%, while JD is down by 21%.