“The global Top100 reached a record $51.8tn in market capitalisation at 31 March 2026 - but this tells only half the story. AI is creating winners and losers in equal measure, geopolitical shocks are repricing risk in real time, and investors are rotating into heavy, hard-to-replicate assets. The HALO trend is not a passing fad — it reflects a market that values durability over disruption.”
Michael Wisson, Partner PwC UK
Key highlights 2026
AI disruption, geopolitical conflict and a rotation into heavy assets reshaped the winners and losers in the Top 100 list.
- Recent geopolitical events brought volatility to markets, oil prices surged and indices fell around the world.
- The S&P 500, FTSE 100 and STOXX 600 all fell over 10%, and oil nearly reached $150 a barrel in March 2026 as tensions escalated in the Middle East.
- However, resilient corporate earnings in the first quarter and cautious optimism that the Middle East conflict could be resolved has moderated investor sentiment.
- The S&P 500 reached a new all-time high and closed above 7,100 as of 24 April 2026 and the FTSE 100 and STOXX 600 have also rebounded in the same time period.
- Looking ahead, despite record valuations, uncertainty around the Middle East conflict, commodity price headwinds and AI monetisation mean the pace of growth may moderate.
The market capitalisation of the world’s Top 100 companies grew 22% to a record $51,847bn
- The combined market capitalisation of the Top 100 companies grew $9,211bn (22%) in the year to 31 March 2026, accelerating from the prior year's growth of 7% ($2,765bn).
- This new high of $51,847bn means that the Top 100 companies have shown consistent growth in the past five years, producing a CAGR of 10% over that period.
- This growth was largely attributable to US companies, with a broader market rally propelling its total market capitalisation to $38,760 and its share of the Top 100 to 75% by market capitalisation.
- Eleven companies in the Top 100 companies even achieved triple-digit growth in the year ended 31 March 2026, up from just two in the prior year.
Source: S&P Global Market Intelligence LLC with PwC analysis
Divergence at the Top: Semiconductors shine as software stumbles
- The tech-focused Magnificent Seven companies now represent 37% of the Top 100 by market capitalisation. Performance within the group has diverged. Semiconductor and hardware names have performed well. In contrast, a pull back in valuations during the first quarter of 2026 weighed on software-led names recording year‑over‑year declines in market capitalisation.
- This dynamic was mirrored outside of the Magnificent Seven, with Systems software (-23%) and Application software (-25%) were the most impacted sub‑sectors, reversing gains from 31 December 2025 highs when they were on track for double‑digit growth.
Information Technology continues to dominate the Top 100. However, Materials and Industrials were the standout sectors.
- The market capitalisation of Information Technology companies grew 34% year-on-year to $18,690bn, gaining a net five new entrants to the Top 100. Semiconductor and hardware subsectors were the best performing.
- Materials and Industrials were the standout sectors this year, achieving 84% and 42% year-on-year growth respectively. Heavy Asset Low Obsolescence (HALO) companies have benefitted from the impacts of recent geopolitical events and the rotation out of software companies. Electrical Equipment and machinery manufacturers achieved significant growth. Meanwhile metals and mining achieved 45% growth.
- In contrast, Financial sector growth slowed considerably, growing by just 6% year-on-year in 2026, compared to the 39% growth it showed in 2025. Interest rate cuts by central banks throughout 2025 and geopolitical uncertainty dampened sentiment.
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