Big Tech has become the market’s superpower — and its Achilles' heel

This is The Takeaway from today's Morning Brief, which you can sign up to receive in your inbox every morning along with: What we're watching What we're reading Economic data releases and earnings The top 10 stocks in the S&P 500, led by the AI giants, have surged back to dot-com era levels of dominance, according to new data from Lori Calvasina, head of US equity strategy research at RBC. Her chart shows the group’s equal-weighted performance versus the rest of the S&P is approaching the highs of th ...