Just 20 stocks on the S&P 500 are responsible for nearly all its gains this year as Big Tech leads rally

• Twenty stocks concentrated in tech have driven 90% of gains in the S&P 500 this year.
• The surge is due to easing concerns around interest rates amid uncertainty in financial stocks.
• Still, the tech rally may fade, as a strong job market data may force further interest hikes.

Twenty stocks are almost entirely responsible for the $2.36 trillion in maket value added to the S&P 500 so far this year, according to the Financial Times.