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Singapore Stocks Rise as Oil Posts Steepest Quarterly Drop Since 2020 on US-Iran Ceasefire

Singapore Stocks Rise as Oil Posts Steepest Quarterly Drop Since 2020 on US-Iran Ceasefire
Markets · 2026
Photo · Marcus Devlin for Daily Digest Invest
By Marcus Devlin Equities Correspondent Jul 1, 2026 4 min read

Singapore's Straits Times Index (STI) edged up about 0.3% at the open on Tuesday, tracking gains across parts of Asia as a sharp drop in oil prices boosted market sentiment. The move came as Brent crude, the global benchmark, settled at $72.92 a barrel, down nearly 21% in June and 38% in the second quarter — its biggest quarterly fall since the first quarter of 2020. The US benchmark West Texas Intermediate (WTI) ended near $69.50 after similar declines.

What drove oil's plunge?

The steep decline in oil prices was fueled by two key developments. First, a ceasefire between the United States and Iran eased fears of supply disruptions in the Middle East, a region that accounts for about a third of the world's seaborne oil trade. Second, shipping through the Strait of Hormuz — a narrow waterway between the Persian Gulf and the Gulf of Oman through which roughly 20% of global oil passes — resumed more normally after earlier tensions had raised the risk of blockages.

Together, these factors helped push Brent down nearly 21% in June alone, making it the worst month for oil since the early days of the COVID-19 pandemic in 2020. The quarterly drop of 38% is the largest since the first quarter of 2020, when demand collapsed amid global lockdowns.

Why this time is different from 2020

While the scale of the decline echoes the pandemic-era rout, the underlying cause is different. In 2020, oil prices crashed because lockdowns destroyed demand. This time, the drop is driven by a reduction in supply risk — a ceasefire and smoother shipping — rather than a slump in global economic activity. That distinction matters for investors: a supply-driven price fall can be positive for importing economies like Singapore, which rely heavily on imported energy, without necessarily signaling a broader economic downturn.

Cheaper oil reduces input costs for businesses, from airlines to manufacturers, and can ease inflationary pressures. For everyday investors, lower energy prices often translate into lower fuel costs and potentially higher disposable income, which can support consumer spending and corporate profits.

What it means for Singapore stocks

The STI's modest rise reflects a broader relief rally across Asian markets, as cheaper energy lifted sentiment. Sectors that benefit from lower oil prices, such as airlines and shipping companies, may see a tailwind. However, energy-related stocks — including oil and gas producers — could face headwinds as lower crude prices squeeze margins.

Investors should note that the STI had dipped 0.7% earlier this month as Middle East tensions weighed on sentiment, as we reported in Singapore STI Dips 0.7% as Middle East Tensions Weigh on Sentiment. The ceasefire has reversed some of that pressure, but the broader outlook remains uncertain.

Broader market context

The oil price drop comes amid a mixed picture for global markets. European stocks, as measured by the STOXX 600, surged 10% in the second quarter — their best quarter since 2020 — driven by AI and tech stocks, as we covered in STOXX 600 Surges 10% in Best Quarter Since 2020, AI Tech Stocks Lead Rally. Meanwhile, US chip stocks powered the Nasdaq higher as oil prices slipped, as noted in Chip Stocks Power Nasdaq Higher as Oil Prices Slip.

In the Middle East, UAE stocks dipped earlier this month as conflicting signals from US-Iran talks in Doha fueled caution, as we reported in UAE Stocks Dip as Conflicting US-Iran Signals on Doha Talks Fuel Caution. The ceasefire now appears to have eased those concerns, at least for now.

What investors should watch next

With oil prices at their lowest in months, the key question is whether the ceasefire holds and whether shipping through the Strait of Hormuz remains smooth. Any renewed tensions could quickly reverse the price decline. Additionally, investors will be watching for signs of demand weakness — if the global economy slows, oil could fall further, but that would also hurt corporate earnings more broadly.

For Singapore investors, the immediate takeaway is that lower oil prices are a net positive for the import-dependent economy, but the sustainability of the rally in stocks depends on broader economic fundamentals. As always, diversification and a long-term perspective remain prudent.

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