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US-Iran Peace Boosts Singapore Markets to 52-Week High

6/20/2026

48 4 Full Breakdown

Summary

Story summary

Singapore markets rallied after the United States and Iran signed a peace agreement on June 18.
The Straits Times Index closed at 5,212.84 on June 18, a 52-week high, up from 4,988 a week earlier.
Brent crude fell below US$80 per barrel on June 18, marking the first sub-$80 price in three months.
Japan’s Nikkei index rose nearly 8 % over the week to reach 71,250 on June 19.
South Korea’s Kospi index jumped 5 % over the week.

History

Historical Context

Signed on July 14 2015, the Joint Comprehensive Plan of Action lifted sanctions on Iran, prompting a sharp fall in Brent crude and a rally in Asian equities. The June 18 2024 U.S.–Iran peace pact has produced a comparable market reaction, again lowering oil prices and boosting the Singapore Straits Times Index, underscoring how diplomatic breakthroughs repeatedly influence regional finance.

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Story summary

Singapore markets rallied after the United States and Iran signed a peace agreement on June 18.
The Straits Times Index closed at 5,212.84 on June 18, a 52-week high, up from 4,988 a week earlier.
Brent crude fell below US$80 per barrel on June 18, marking the first sub-$80 price in three months.
Japan’s Nikkei index rose nearly 8 % over the week to reach 71,250 on June 19.
South Korea’s Kospi index jumped 5 % over the week.

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