This Wall Street Expert Is Less Bullish on Big Tech Stocks Now. Here's Why.

Key Takeaways The problem is that betting on the Mag 7 has worked too well, with the tech and comms sectors now accounting for a record 45% of the benchmark index's market capitalization, Yardeni said. While that may be justified by their earnings share also climbing, their overall riskiness compared to the rest of the index has also risen. "They used to just operate in their own moats and kind of leave each other alone, but I think we're now having a competitive situation," Yardeni said on CNBC. "Not only ...