AI is transformative, but are investment portfolios too dependent on it?

Mega-cap technology stocks have defined recent markets.  Strong fundamentals and enthusiasm around artificial intelligence (AI) have lifted returns, but they have also pushed concentration to levels investors can no longer ignore. The AI opportunity is significant. Its impact on productivity, business models and economic growth is likely to be far-reaching. Across the value chain, from semiconductor manufacturers to software providers, businesses are investing heavily to capture the benefits of this technological shift. While AI is likely to be transformative, the harder question i...