S&P 500 and Nasdaq Composite and 100 All Hit Fresh Record Highs as Tech Momentum Intensifies – 26th May 2026

New record all-time highs for U.S. indices

The S&P 500 and Nasdaq Composite surged to new all‑time highs yesterday, extending a rally that shows little sign of fatigue as investors continue to pile into megacap technology and AI‑linked names.

The move higher came despite a patchy run of U.S. macro data, underscoring how dominant earnings strength and sector‑specific momentum have become in driving equity sentiment.

S&P 500: 7,519.12, up 45.65 points (+0.61%) — a record closing high.

S&P 500 26th May 2026

The S&P 500’s climb was supported by broad participation across technology, communication services and consumer discretionary, with investors rewarding companies delivering consistent revenue and margin expansion.

Market breadth has improved modestly in recent weeks, helping reinforce confidence that the rally is not solely dependent on a handful of giants.

Nasdaq Composite: 26,656.18, up 312.21 points (+1.19%) — also a record closing high, with an intraday peak of 26,725.29.

Nasdaq Composite 26th May 2026

Nasdaq‑100 (NDX): 30,001.32Up: +519.68 points (+1.76%) Intraday high: 30,044.49 – a new record high.

Nasdaq 100 26th May 2026

The Nasdaq once again outperformed, propelled by heavy demand for semiconductor, cloud and AI infrastructure stocks.

Upbeat guidance from several major tech firms earlier this month has strengthened the view that the sector’s earnings cycle still has room to run.

While valuations remain elevated and leave the market exposed to any negative surprise, investors have so far shown little inclination to rotate away from the winners.

Yesterday’s triple records highlight the market’s conviction that the AI‑driven profit cycle remains intact.

SK Hynix joins in AI boom to join the $1 trillion club

SK Hynix rockets to $1 trillion valuation

SK Hynix has joined the trillion‑dollar club, marking a historic moment for South Korea’s semiconductor industry.

The company’s valuation surge reflects its dominance in high‑bandwidth memory (HBM) production — the critical component powering AI training systems worldwide.

As demand for faster, more efficient data processing accelerates, SK Hynix’s chips have become indispensable to hyperscalers and GPU manufacturers alike.

The milestone underscores a broader reordering of global tech power. Once overshadowed by larger rivals, SK Hynix now stands as a cornerstone of the AI infrastructure boom, benefiting from long‑term supply contracts and premium pricing for its advanced HBM3E modules.

Investors have rewarded its precision engineering and disciplined expansion strategy, driving shares to record highs.

Crossing the trillion‑dollar threshold cements SK Hynix’s transformation from a memory supplier into a strategic technology leader — and signals that the AI era’s next wave of growth will be built on memory innovation.

Global Trillion‑Dollar Companies (May 2026) – Micron, SK Hynix and Walmart soon to join the club

RankCompanyMarket Cap (USD trillions)SectorNotes
1️⃣Nvidia (NVDA)≈ 5.3 – 5.2SemiconductorAI  hardwareWorld’s most valuable firm; GPUs power global AI infrastructure.
2️⃣Alphabet ≈ 4.6 – 4.7Comms Search ServicesAI‑driven growth via Google Cloud, Gemini, and YouTube ads.
3️⃣Apple (AAPL)≈ 4.5 – 4.4Consumer TechnologyStill a top‑three giant; hardware + services ecosystem.
4️⃣Microsoft ≈ 3.1Software  and Cloud  ComputingAzure and enterprise AI remain core drivers.
5️⃣Amazon ≈ 2.8 – 2.9E‑commerce   CloudAWS and retail logistics sustain trillion‑plus value.
6️⃣TSMC (TSM)≈ 2.1SemiconductorCritical foundry for global chip supply chain.
7️⃣Broadcom ≈ 2.0Semiconductor SoftwareRides HBM and networking chip demand.
8️⃣Saudi Aramco≈ 1.8EnergyLargest non‑tech member; oil and petrochemical dominance.
9️⃣Tesla (TSLA)≈ 1.5 – 1.6Automotive  EnergyEV and AI‑driven autonomy keep valuation high.
🔟Meta Platforms (META)≈ 1.5 – 1.6Social Media   AI  advertisingStill above $1 T despite rotation toward semiconductors.
11Samsung Electronics≈ 1.3Semiconductor MemoryNew entrant; HBM and AI‑memory surge.
12Berkshire Hathaway (BRK.A)≈ 1.0Financial ConglomerateDiversified holdings across insurance, energy, and rail.

Micron is the latest company to reach $1 trillion valuation

Micron at $1 trillion Cap

Micron has surged past the $1 trillion valuation mark, becoming the latest chipmaker to ride the relentless global demand for advanced memory used in AI data centres.

The company’s shares have climbed sharply as hyperscalers race to secure high‑bandwidth memory for next‑generation training clusters, pushing Micron’s order book to record levels and transforming what was once a cyclical manufacturer into a strategic pillar of the AI supply chain.

Milestone

The milestone reflects a dramatic shift in investor perception. Micron’s HBM3E and emerging HBM4 lines are now viewed as essential infrastructure, commanding premium pricing and long‑term supply agreements.

Profitability has strengthened accordingly, with margins expanding as production scales and shortages persist across the industry.

While the trillion‑dollar threshold underscores Micron’s new status among the semiconductor elite, it also raises expectations.

Sustaining this valuation will depend on flawless execution, continued technological leadership, and the durability of the AI investment boom.

Global Trillion‑Dollar Companies (May 2026) – Micron and SK-Hynix to join

RankCompanyMarket Cap (USD trillions)SectorNotes
1️⃣Nvidia (NVDA)≈ 5.3 – 5.2SemiconductorAI  hardwareWorld’s most valuable firm; GPUs power global AI infrastructure.
2️⃣Alphabet ≈ 4.6 – 4.7Comms ServicesAI‑driven growth via Google Cloud, Gemini, and YouTube ads.
3️⃣Apple (AAPL)≈ 4.5 – 4.4Consumer TechStill a top‑three giant; hardware + services ecosystem.
4️⃣Microsoft ≈ 3.1Software  Cloud  ComputingAzure and enterprise AI remain core drivers.
5️⃣Amazon ≈ 2.8 – 2.9E‑commerce / CloudAWS and retail logistics sustain trillion‑plus value.
6️⃣TSMC (TSM)≈ 2.1SemiconductorCritical foundry for global chip supply chain.
7️⃣Broadcom ≈ 2.0SemiconductorSoftwareRides HBM and networking chip demand.
8️⃣Saudi Aramco≈ 1.8EnergyLargest non‑tech member; oil and petrochemical dominance.
9️⃣Tesla (TSLA)≈ 1.5 – 1.6Automotive /
Energy
EV and AI‑driven autonomy keep valuation high.
🔟Meta Platforms (META)≈ 1.5 – 1.6Social Media   AI  advertisingStill above $1 T despite rotation toward semiconductors.
11️⃣Samsung Electronics≈ 1.3Semiconductors / MemoryNew entrant; HBM and AI‑memory surge.
12️⃣Berkshire Hathaway (BRK.A)≈ 1.0Financial ConglomerateDiversified holdings across insurance, energy, and rail.