KEY POINTS
  • Apple, Microsoft, Amazon, Alphabet and Facebook account for 18% of the S&P 500's value, a combined weighting not seen since the tech bubble.
  • But unlike then, the big tech giants of 2020 are more fairly valued and devote more revenue to reinvestment, wrote Goldman strategist David Kostin.
  • Better-than-expected profit has helped keep traditional valuation measures in check and lower than where they were before the tech bubble burst two decades ago.
FAANG stocks displayed at the Nasdaq.

The influence of a few big stocks over the market is at its most extreme level in 20 years, but that's not necessarily a reason to stay away from those shares, according to Goldman Sachs.

Apple, Microsoft, Amazon, Alphabet and Facebook account for 18% of the S&P 500's value, a feat not achieved by just five components since the peak of the tech bubble in 2000. Back then it was, Microsoft, Cisco, General Electric, Intel and Exxon Mobil ruling the market before it crashed as the dot-com bubble burst.