New Delhi, Aug. 13 -- Nvidia Corp. has cemented its dominance in U.S. equity markets, ending Tuesday with a market capitalisation of $4.47 trillion and accounting for more than 8% of the S&P 500's total market value - the highest weighting ever recorded for a single stock in the index's history.

Nvidia share price closed 0.52% higher at $183.10 apiece, lifting its market share in the S&P 500 to a record high level. On Tuesday, the S&P 500 gained 72.31 points, or 1.13%, to close at a record high of 6,445.76, with a market cap of $53.66 trillion, buoyed in part by shares of the AI chipmaker Nvidia's continued rally.

The milestone underscores Nvidia's rapid ascent, fuelled by insatiable demand for its graphics processing units (GPUs) that ...