Tech and Energy Lead 2026 Gains as AI Spending and Oil Prices Surge

Technology and energy sectors have driven market leadership in the first nine months of 2026, supported by a 42.1% projected earnings growth in tech and an 111.8% surge in energy profits. These gains have kept major equity indexes near record highs despite a macro environment characterized by rising interest rates and inflation.

From January to September, the S&P 500 gained 11.4% and the Nasdaq Composite rose 15.6%. Reuters reported that global equity indexes remain only about 2% below their record highs. This performance occurred while the 10-year Treasury yield moved above 5% and Brent crude prices increased by approximately 40% in the third quarter. The divergence between strong equity returns and a challenging monetary backdrop has made the current market structure distinct.

The strength in technology stocks is rooted in substantial earnings growth rather than speculative sentiment alone. According to the Zacks Earnings Trend report updated on Sept. 30, the tech sector is expected to post 42.1% earnings growth in the third quarter of 2026. Semiconductor earnings are projected to surge 85.5%, driven by 62.8% revenue growth. This concentration of growth is significant; excluding semiconductors, tech earnings growth would moderate to 29.6%. Excluding NVIDIA, Micron, and Alphabet, the figure drops further to 20.6%, highlighting the outsized contribution of a few key companies to the sector's overall performance.

NVIDIA reported fiscal second-quarter 2027 revenues rising 106% year over year, with Data Center revenues jumping 117%. Micron Technology provided another data point on AI infrastructure demand, reporting a fiscal fourth-quarter 2026 revenue surge of 379.3% year over year. The company's results beat the Zacks Consensus Estimate by 6.33%, while earnings per share of $33.42 exceeded estimates by 5.73%. These figures reflect strong demand for memory products tied to AI infrastructure.

Energy sector performance has been driven by different fundamental forces, primarily geopolitical disruptions in the Middle East that pushed Brent crude above $100 per barrel during September. Zacks expects Energy earnings to surge 111.8% in the third quarter, representing the most pronounced upgrade to the sector's earnings outlook since the quarter began. Major oil producers have reported record profits reflecting these higher commodity prices.

Chevron reported $12 billion in second-quarter 2026 adjusted earnings, its highest quarterly profit in six years. Upstream earnings rose 200% to $8.2 billion, and U.S. production reached a record nearly 2.1 million barrels of oil equivalent per day. Exxon Mobil reported $14.7 billion in second-quarter adjusted earnings, along with $23.6 billion in operating cash flow and $17.2 billion in free cash flow.