Business & Finance

Tech giants drive broad market weight despite corporate AI profitability struggles

Five leading tech firms make up nearly a third of the S&P 500, while a study found most AI-invested businesses have not profited.

Updated Sep 18, 2026 · 19:33 UTC2 reports

The short version

According to Morningstar data, five technology firms—Nvidia, Apple, Microsoft, Alphabet, and Amazon—comprise about 30% of the S&P 500 index.[CNBC]
A study from MIT found that roughly 95% of businesses that invested in artificial intelligence failed to generate profit from it, representing about $40 billion in spending.[ABC News]
It remains to be seen whether corporate adoption can translate heavy artificial intelligence investments into sustainable returns for broader market investors.[ABC News · CNBC]

Five technology giants—Nvidia, Apple, Microsoft, Alphabet, and Amazon—account for about 30% of the S&P 500 index.[CNBC]
An MIT study found that approximately 95% of businesses investing in AI failed to make money from the technology, with combined spending estimated around $40 billion.[ABC News]

It remains uncertain when or if the large majority of companies deploying artificial intelligence will see financial returns on their estimated $40 billion in investments.[ABC News]

Outlet counts describe coverage, not independent confirmation. Reports may share a wire service or original source.