Some non-AI sectors could offer better portfolio resilience as Big Tech and semiconductor stocks become more volatile, Saxo Markets chief investment strategist Charu Chanana says in a note. While AI is still the most important long-term investment theme, the AI trade positioning has become increasingly crowded, making them swing wildly in both directions, she says. Instead of abandoning AI stocks, investors need to rebalance oversized AI winners and reduce mega-cap concentration, she says. Chanana thinks healthcare could be a good hedge, as the sector is trading below the broader market and has different earnings drivers from tech. (sherry.qin@wsj.com)