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AI and Oil Shape Market Leadership in the First Nine Months of 2026
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Key Takeaways
Technology is expected to post 42.1% earnings growth in Q3 2026, led by an 85.5% semiconductor surge.
NVIDIA and Micron highlight the earnings leverage from AI spending and infrastructure-driven memory demand.
Energy earnings are expected to surge 111.8% as Middle East disruptions push Brent above $100.
Nine months into 2026, investors have had to observe a rare combination of accelerating AI investment, renewed monetary tightening, elevated Treasury yields and a sharp energy-price shock. Yet these crosscurrents have not translated into a uniform market response.
Technology has remained at the center of the equity story as hyperscalers and enterprises continue to commit enormous sums to AI infrastructure. Energy has benefited from a dramatic rise in crude prices amid geopolitical disruptions. At the same time, higher borrowing costs and persistent inflation have complicated the valuation outlook, particularly for growth stocks whose future cash flows are more sensitive to interest rates.
Equity Gains Defy a Challenging Environment
The resilience of equities despite these pressures makes the nine-month review particularly relevant as the fourth quarter begins. From January to September, the S&P 500 gained 11.4%, while the Nasdaq Composite was up 15.6%. Reuters reported that global equity indexes were only about 2% below record highs. However, the strong headline performance came against a challenging macro backdrop, with the 10-year Treasury yield moving above 5% and Brent crude gaining about 40% in the third quarter.
Jan-Sept. 2026 Price Performance
Image Source: Zacks Investment Research
The headline gains, however, do not tell the entire story. Market leadership remained concentrated in areas benefiting from the AI investment boom, while energy stocks gained from the sharp rise in crude prices and changing geopolitical dynamics. Meanwhile, elevated yields and persistent inflation continued to raise the bar for equity valuations.
Against this backdrop, technology and energy emerged as two of the most consequential sector stories of the first nine months, albeit for very different fundamental reasons.
Technology: AI Turns Capital Spending Into an Earnings Engine
Technology's dominance in 2026 has increasingly been supported by earnings rather than AI enthusiasm alone. According to the Zacks Earnings Trend report (Sept. 30 update), the tech sector is expected to post 42.1% earnings growth in the third quarter of 2026, with semiconductor earnings projected to surge 85.5% on 62.8% revenue growth.
The concentration of growth is notable. Per Zacks estimates, Tech earnings growth would moderate to 29.6% excluding semiconductors and to 20.6% excluding NVIDIA, Micron and Alphabet. This highlights the significant earnings leverage from AI spending, while also showing the outsized contribution of a handful of companies.
NVIDIA (NVDA - Free Report) exemplifies this trend, with fiscal second-quarter 2027 revenues rising 106% year over year and Data Center revenues jumping 117%. Micron Technology (MU - Free Report) offers another direct play on AI infrastructure. Yesterday, the company reported fiscal fourth-quarter 2026 revenue surge of 379.3% year over year, beating the Zacks Consensus Estimate by 6.33%, while EPS of $33.42 topped the Zacks Consensus Estimate by 5.73%. The results reflect strong demand for memory products tied to AI infrastructure.
Energy: Geopolitics Creates a Second Earnings Engine
Energy's earnings story is being driven by a different force. Middle East disruptions pushed Brent above $100 per barrel during September. Going by the trend report, Zacks expects Energy earnings to surge 111.8% in the third quarter, while the sector received the most pronounced upgrade to its earnings outlook since the quarter began.
Chevron (CVX - Free Report) reported $12 billion in second-quarter 2026 adjusted earnings, its highest quarterly profit in six years, with upstream earnings rising 200% to $8.2 billion and U.S. production reaching a record nearly 2.1 million barrels of oil equivalent per day. Exxon Mobil (XOM - Free Report) reported $14.7 billion in second-quarter adjusted earnings, $23.6 billion in operating cash flow and $17.2 billion in free cash flow.
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Image: Shutterstock
AI and Oil Shape Market Leadership in the First Nine Months of 2026
Key Takeaways
Nine months into 2026, investors have had to observe a rare combination of accelerating AI investment, renewed monetary tightening, elevated Treasury yields and a sharp energy-price shock. Yet these crosscurrents have not translated into a uniform market response.
Technology has remained at the center of the equity story as hyperscalers and enterprises continue to commit enormous sums to AI infrastructure. Energy has benefited from a dramatic rise in crude prices amid geopolitical disruptions. At the same time, higher borrowing costs and persistent inflation have complicated the valuation outlook, particularly for growth stocks whose future cash flows are more sensitive to interest rates.
Equity Gains Defy a Challenging Environment
The resilience of equities despite these pressures makes the nine-month review particularly relevant as the fourth quarter begins. From January to September, the S&P 500 gained 11.4%, while the Nasdaq Composite was up 15.6%. Reuters reported that global equity indexes were only about 2% below record highs. However, the strong headline performance came against a challenging macro backdrop, with the 10-year Treasury yield moving above 5% and Brent crude gaining about 40% in the third quarter.
Jan-Sept. 2026 Price Performance
Image Source: Zacks Investment Research
The headline gains, however, do not tell the entire story. Market leadership remained concentrated in areas benefiting from the AI investment boom, while energy stocks gained from the sharp rise in crude prices and changing geopolitical dynamics. Meanwhile, elevated yields and persistent inflation continued to raise the bar for equity valuations.
Against this backdrop, technology and energy emerged as two of the most consequential sector stories of the first nine months, albeit for very different fundamental reasons.
Technology: AI Turns Capital Spending Into an Earnings Engine
Technology's dominance in 2026 has increasingly been supported by earnings rather than AI enthusiasm alone. According to the Zacks Earnings Trend report (Sept. 30 update), the tech sector is expected to post 42.1% earnings growth in the third quarter of 2026, with semiconductor earnings projected to surge 85.5% on 62.8% revenue growth.
The concentration of growth is notable. Per Zacks estimates, Tech earnings growth would moderate to 29.6% excluding semiconductors and to 20.6% excluding NVIDIA, Micron and Alphabet. This highlights the significant earnings leverage from AI spending, while also showing the outsized contribution of a handful of companies.
NVIDIA (NVDA - Free Report) exemplifies this trend, with fiscal second-quarter 2027 revenues rising 106% year over year and Data Center revenues jumping 117%. Micron Technology (MU - Free Report) offers another direct play on AI infrastructure. Yesterday, the company reported fiscal fourth-quarter 2026 revenue surge of 379.3% year over year, beating the Zacks Consensus Estimate by 6.33%, while EPS of $33.42 topped the Zacks Consensus Estimate by 5.73%. The results reflect strong demand for memory products tied to AI infrastructure.
Energy: Geopolitics Creates a Second Earnings Engine
Energy's earnings story is being driven by a different force. Middle East disruptions pushed Brent above $100 per barrel during September. Going by the trend report, Zacks expects Energy earnings to surge 111.8% in the third quarter, while the sector received the most pronounced upgrade to its earnings outlook since the quarter began.
Chevron (CVX - Free Report) reported $12 billion in second-quarter 2026 adjusted earnings, its highest quarterly profit in six years, with upstream earnings rising 200% to $8.2 billion and U.S. production reaching a record nearly 2.1 million barrels of oil equivalent per day. Exxon Mobil (XOM - Free Report) reported $14.7 billion in second-quarter adjusted earnings, $23.6 billion in operating cash flow and $17.2 billion in free cash flow.