From Morningstar:

Investors should consider sector allocations when building portfolios, as they can significantly impact returns. In 2023, technology was the best-performing sector globally, while utilities lagged behind. The US market is heavily weighted towards technology, posing sector risk for investors. Sector rotation or valuation strategies can help navigate sector opportunities and risks. Healthcare is a sector worth considering for global investors due to attractive valuations.



Read more at Morningstar: Trim Your Winners: is it Time to Sell Your Tech Stocks?