Semiconductors bounced back from a bear market; now inflation is back - what’s next?
How to Trade Semiconductor Stocks in Australia
* CFD trading involves risk and may not be suitable for all investors.
The US semiconductor sector just staged one of Wall Street’s fastest reversals. After falling more than 20% from its late-June record high and entering a bear market in July, the Philadelphia Semiconductor Index recovered more than 20% from its 29 July low by Monday, officially returning to bull-market territory.
That rebound put memory and AI-infrastructure stocks such as SanDisk, Micron and Coherent back at the centre of the technology trade. Their latest pullback has now raised a more difficult question: can the chip recovery continue if oil, inflation expectations and long-term Treasury yields keep rising together?
Brent crude has climbed from around US$80 a barrel in early August to above US$91 as the US-Iran diplomatic outlook has deteriorated and uncertainty around the Strait of Hormuz has returned. At the same time, 30-year US Treasury yields have reached their highest level since 2007.
For Australian traders, this is a broader market test. The semiconductor recovery is colliding with the same macro pressures that can compress technology valuations, raise funding costs and shift capital toward energy and defensive sectors
Chip stocks led a broad US technology selloff
This week has shown how quickly risk appetite can shift when higher oil prices and bond yields challenge elevated technology valuations.
Contracts for Difference (CFDs) allow traders to take a view on selected US shares, indices and commodities without owning the underlying instrument. A short CFD position may suit a view that higher yields and oil prices will keep pressure on technology valuations, while a long position may suit a view that the chip selloff has created an oversold rebound opportunity.
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High valuations made rising yields a chip-stock problem
Semiconductor and AI-related shares have delivered some of the market’s strongest gains this year. That performance has also made the sector more sensitive to changes in interest-rate expectations.
Higher long-term Treasury yields raise the discount rate investors apply to future earnings. That can have a greater effect on companies where much of the expected value rests on growth several years ahead, including memory-chip producers, AI infrastructure suppliers and data-centre technology businesses.
The selloff was particularly severe in the memory and networking parts of the market:
SanDisk and Micron have benefited from expectations that AI data centres will require more high-performance memory and storage.
Coherent supplies optical components used in high-speed networking, placing it close to the infrastructure spending that supports AI expansion.
Nvidia, AMD and Broadcom also declined, showing that the pressure extended beyond the three sharpest movers.
Long-term yields climbed as investors absorbed higher oil prices, fiscal concerns and the possibility that inflation stays elevated for longer.
The price action shows that investors are demanding clearer evidence that AI-related spending can continue to support earnings at current valuations.
Oil above US$91 has broadened the market risk
Brent crude’s move above US$91 was driven by renewed uncertainty around Middle East supply routes and the fading prospect of a near-term US-Iran diplomatic breakthrough.
US President Donald Trump said there were no planned talks with Iran, while Tehran maintained that the Strait of Hormuz remained closed. The conflicting signals matter because the waterway is a major route for global oil shipments, and further disruption could sustain a higher risk premium in crude prices.
For equity markets, higher oil affects more than energy companies.
It can lift fuel and transport costs, add to consumer inflation and make central banks more cautious about cutting interest rates. That combination can support energy shares while weighing on high-growth technology companies and consumer-facing businesses.
The latest session reflected that divide. Energy stocks advanced as oil rose, while semiconductors and other AI-linked names absorbed the largest losses.
The chip selloff is testing the AI spending story
The market is still weighing two competing forces.
AI infrastructure spending has remained substantial, supporting demand for advanced memory, chips, networking equipment and data-centre capacity. Yet every earnings season also brings a harder question: how quickly will that spending translate into sustainable revenue and profit growth?
The recent decline in memory and networking shares shows that investors are becoming less willing to pay any price for exposure to that theme.
Traders may watch whether the weakest shares stabilise around key technical levels or whether the selloff spreads into broader mega-cap technology. A sharp fall in SanDisk, Micron or Coherent can attract bargain hunters, but it can also signal that expectations for AI-related demand are being reset across the supply chain.
The next major company results, guidance updates and capital-expenditure plans will determine whether the selloff becomes a short-term valuation adjustment or a broader reassessment of the sector.
Why the oil-yield-tech connection matters from Australia
The current market move combines three different instruments: US technology shares, US Treasury yields and Brent crude. Following only one of them can leave traders reacting after the broader market has already changed direction.
A rise in Brent can support energy stocks while putting pressure on inflation expectations. Higher inflation expectations can lift long-term yields. Higher yields can weigh more heavily on growth shares than on sectors with nearer-term cash flows.
That creates several possible scenarios:
Brent keeps rising, yields remain elevated and pressure spreads through technology shares.
Oil eases after a credible diplomatic development, reducing inflation concerns and helping growth stocks stabilise.
Chip shares recover while oil remains firm, showing that investors still see AI demand as strong enough to offset the macro headwinds.
A further rise in yields produces another round of selling in the Nasdaq and semiconductor stocks.
The connection between these markets is now a key part of the US equity outlook.
What could move US technology shares next?
The semiconductor selloff has put several near-term catalysts back into focus:
US-Iran developments: A credible return to negotiations could reduce oil’s geopolitical risk premium, while further escalation could push it higher.
Brent crude and Treasury yields: These remain the clearest daily measures of inflation and valuation pressure.
Federal Reserve communication: Markets will watch whether policymakers signal concern about energy-driven inflation.
Nvidia and other technology earnings: Guidance on AI demand, data-centre spending and capital expenditure will influence sentiment across the chip supply chain.
Chip-stock price action: Whether SanDisk, Micron and Coherent hold or break key levels may shape the sector’s short-term direction.
Broader Nasdaq performance: Further weakness in large technology names would show that selling is spreading beyond semiconductors.
Technology shares have powered much of Wall Street’s recent strength. Brent crude, bond yields and the next round of AI spending data will now help determine whether that leadership can resume.
How Mitrade helps traders respond to US tech and oil volatility
Mitrade gives Australian traders access to selected US share, index and commodity CFDs, allowing them to follow the same market forces shaping the Nasdaq and semiconductor sector.
Key tools include:
Long and short CFD positions on selected US technology shares, indices and oil markets.
Real-time charts for tracking whether a chip-stock decline is holding, accelerating or reversing.
Stop-loss and take-profit orders to define risk before entering a volatile market.
Pending orders around important support, resistance or breakout levels.
Australian-dollar account funding and margin management.
Mobile access for monitoring US-market moves and oil-price developments.
CFDs are leveraged products. With 5:1 leverage, an A$1,000 position may require around A$200 in initial margin. Leverage can increase exposure from a smaller upfront amount, while also magnifying losses as well as gains. Defined risk limits are particularly important when chip stocks, bond yields and crude oil can all move sharply on the same headline.
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1. Why did rising oil prices affect semiconductor stocks?
Higher oil prices can lift inflation expectations and push long-term Treasury yields higher. Higher yields can reduce the value investors place on future earnings, which can weigh on high-growth technology and semiconductor shares.
2. Does a fall in Micron or SanDisk mean AI demand is weakening?
Their share prices can react to demand expectations, valuations, interest rates and broader market positioning at the same time. Company guidance, memory pricing and data-centre spending plans remain important for assessing the outlook.
3. Can traders take a view if US chip shares continue to fall?
CFDs allow traders to take a short position on selected shares or indices if they expect further downside. Losses can occur if the market rises instead.
Disclaimer: The content presented above, whether from a third party or not, is considered as general advice only. CFD trading involves significant risk of loss. Past performance does not guarantee future results. This article serves informational purposes only and does not constitute financial advice. Consider your risk tolerance before trading.
