Sector rotation investing is evident in recent ETF flows, with $1.8B moving into healthcare funds over the past 30 days. Analysts cite aging population trends and high R&D spend as catalysts. Once AI gathers this information, algorithms can generate suggestions for retirement plans or even manage a portfolio . Of course, these surveys can be superficial, and robo-advisors may offer limited suggestions without considering complex situations — or human emotions. Why invest: All of these are highly liquid securities that can be bought and sold either directly or through mutual funds . Defensive investing strategies are gaining traction with consumer staples up 3% in Q3, as global uncertainty keeps risk appetite in check.