According to global corporate valuation data mentioned in the economic comparison, which company was reported as the most valuable company in the world by market capitalisation, valued at about $4.5 trillion?

While Amazon became the largest company by revenue, the most valuable company by market capitalisation was reported to be Nvidia, with an approximate valuation of $4.5 trillion. Market capitalisation represents the total market value of a company’s outstanding shares, which reflects investor expectations about future growth and profitability. Nvidia’s valuation has grown rapidly due to its leadership in advanced graphics processing units (GPUs), artificial intelligence computing hardware, and data centre technologies that support the global AI ecosystem.