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Nikkei edges up as chip stocks steady, oil climbs on Hormuz attacks

Nikkei edges up as chip stocks steady, oil climbs on Hormuz attacks
Markets · 2026
Photo · Eleanor Whitfield for Daily Digest Invest
By Eleanor Whitfield Markets Editor-in-Chief Aug 4, 2026 3 min read

Japan's benchmark Nikkei 225 index closed 0.32% higher on Tuesday, as a rebound in semiconductor-related shares helped offset pressure from rising oil prices following new attacks near the Strait of Hormuz. The index settled at 63,957.53, with tech names providing the main lift.

Chip stocks steady after recent wobble

Semiconductor-linked stocks, which had been under pressure in recent sessions, found their footing as investors reassessed the outlook for the AI-driven demand cycle. Japan is home to major chip equipment makers and materials suppliers, so the sector carries heavy weight in the Nikkei. When US tech sentiment shifts, Tokyo trading often follows, and Tuesday's calm offered a respite after a period of volatility.

The steadiness in chip names comes as investors look ahead to a busy earnings week, with major Japanese companies including Toyota, Nintendo, and SoftBank set to report. As noted in our preview of the earnings week, these results could set the tone for the broader market in the coming days.

Oil climbs on Hormuz attacks

Crude oil prices moved higher after fresh attacks in the Strait of Hormuz raised doubts about a temporary US-Iran truce announced earlier in the week. The strait is a critical chokepoint for global oil shipments, and any disruption there can quickly ripple through energy markets. For Japan, which imports nearly all of its energy, higher oil prices translate into higher costs for businesses and consumers, potentially squeezing corporate margins and dampening spending.

The geopolitical tension adds another layer of uncertainty to an already complex global outlook. While the truce had offered some hope of de-escalation, the new attacks suggest that risks remain elevated. Investors will be watching for any further developments that could affect supply and, in turn, inflation expectations.

Toyota and Yamaha Motor post strong profits

Adding to the positive tone, Toyota and Yamaha Motor both reported sharp profit gains. Toyota, the world's largest automaker by sales, has benefited from a weaker yen, which boosts the value of its overseas earnings when converted back to yen. The company also recently raised its profit forecast and announced a share buyback, though its shares slipped on a weak quarterly performance, as we covered in our analysis of Toyota's results.

Yamaha Motor, known for motorcycles and marine products, also saw a significant jump in profits, reflecting robust demand in key markets. These results underscore the resilience of Japan's export-oriented manufacturers, even as they navigate currency fluctuations and supply chain challenges.

What it means for investors

For everyday investors, Tuesday's move is a reminder that markets are driven by a mix of forces. On one hand, the tech sector's stability suggests that the AI trade remains intact, at least for now. On the other, rising oil prices could feed into inflation, which might influence central bank policy decisions down the line.

For those with exposure to Japanese equities, the key takeaway is that the market is balancing optimism about corporate earnings with caution over geopolitical risks. The yen's recent rebound has also been a factor, as a stronger currency can weigh on exporter stocks. Our earlier piece on Asia stocks wobbling on yen strength highlighted how currency moves can affect regional markets.

Investors should also keep an eye on the upcoming earnings reports from major tech and auto companies, as they will provide clues about the health of global demand. While no one can predict short-term market movements, understanding the underlying drivers can help you make more informed decisions.

As always, it's important to remember that markets are volatile, and past performance is not a guarantee of future results. Diversification and a long-term perspective remain key principles for navigating uncertain times.

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