US technology sector surges 42% in two months, biggest rally in 24 years

AI and semiconductor stocks are driving the most explosive tech rally since the dot-com era, with Gartner projecting chip revenues will hit $1.3 trillion in 2026.

Share

Add us on Google by Editorial Team Jun. 2, 2026

The Philadelphia Semiconductor Index has gained over 42% year-to-date as of late April 2026. At one point, the SOX posted a 47% gain in just 18 days, with some components climbing as much as 80% since March 30.

This is the largest rally in the US technology sector in 24 years.

The numbers behind the frenzy

The rally’s epicenter is artificial intelligence infrastructure. Hyperscalers like Amazon, Microsoft, and Alphabet have been pouring capital into AI buildouts, and the companies making the silicon that powers those ambitions are reaping the rewards.

NVIDIA shares climbed 30% in a recent stretch. Micron’s stock has tripled in 2026. SK Hynix is up 260% and Samsung has gained 160% this year.

NVIDIA, AMD, Intel, Micron, and Broadcom have all delivered outsized returns that far exceed gains in broader tech benchmarks. The rally has been wide enough across the semiconductor supply chain to push both the Nasdaq and S&P 500 to repeated record highs throughout 2026.

Advertisement

Gartner is projecting that semiconductor industry revenue will reach $1.3 trillion in 2026. That would represent 64% year-over-year growth, the largest annual increase the chip industry has seen in two decades.

Three forces are converging to produce these numbers: massive AI capital expenditure from the world’s largest tech companies, persistent supply constraints that have kept pricing power firmly in manufacturers’ hands, and rising memory prices that have turned what was a cyclical trough into a windfall for DRAM and NAND producers.

Why AI spending changed the math

The AI spending cycle that began in earnest in 2023 has not slowed down. The major cloud providers are locked in what amounts to an arms race, each trying to secure enough compute capacity to serve enterprise AI demand that keeps outpacing forecasts.

Traditional PC and smartphone chip cycles used to dictate the rhythm of the industry. Now, data center GPUs, high-bandwidth memory, and custom AI accelerators are the growth engines.

What this means for investors

Tech and chip stocks have become such a large driver of overall market returns that being underweight the sector is effectively a bet against the index itself.

Gartner’s $1.3 trillion revenue projection for 2026 gives the rally a fundamental anchor. Companies like NVIDIA and Micron are posting actual revenue growth, not just promise-driven valuations.

Supply constraints have been a tailwind, keeping chip pricing elevated and margins fat. If those constraints ease, either through new fab capacity coming online or a softening in demand growth, margins could compress even as revenues continue to grow.

The memory segment deserves particular scrutiny. SK Hynix up 260% and Samsung up 160% in a single year reflects a memory upcycle of historic proportions. Memory cycles are notoriously violent in both directions. Investors who rode the 2017-2018 memory boom remember what the subsequent downturn felt like.

The continued prioritization of AI workloads by foundries like TSMC shapes the supply landscape for every chip-dependent industry, including the hardware that secures blockchain networks.

Disclosure: This article was edited by Editorial Team. For more information on how we create and review content, see our Editorial Policy.