At the start of the 20th century, U.S. Steel’s $1.4 billion valuation reflected an economy driven by railroads, construction, and large-scale manufacturing, with steel forming the backbone of global industrial growth.

By the mid-20th century, that focus had shifted to mobility and mass production. In 1955, General Motors reached a $10 billion valuation, embodying the postwar automotive boom that reshaped cities, trade, and consumer culture.

A further transformation emerged in the late 20th century. General Electric crossed the $100 billion mark in 1995, signalling the rise of diversified multinational conglomerates spanning energy, aviation, and finance. In 1999, Microsoft’s $500 billion valuation marked a decisive turn toward software, computing, and digital infrastructure as central drivers of economic value.

The trillion-dollar milestone arrived in 2018 when Apple became the first publicly traded company to exceed a $1 trillion market capitalisation. Its growth was powered by consumer technology, global supply chains, and platform-based revenue, highlighting the dominance of digital ecosystems in the modern economy.

The most recent phase is defined by artificial intelligence. Nvidia, a key supplier of advanced semiconductors for AI computing, surpassed $3 trillion in market value in 2024 amid surging demand from companies including OpenAI, Microsoft, Google, and Amazon.

Artificial intelligence has become a central force shaping markets, government policy, and corporate strategy. The United States , the European Union, and China are advancing regulatory frameworks while competing to secure critical AI infrastructure and talent.

The International Monetary Fund estimates that AI could affect nearly 40% of global jobs , underscoring both the economic potential and the structural disruption associated with this technological transition.