Which group must closely watch out for unexpected changes in sectoral and thematic index funds' performance before taking on these funds in their portfolios?

Sectoral and thematic index funds have returned up to 22% in just 6 months, making it a prime time to rebalance your portfolio.

• Option 1: Retail investors are overrelying on these funds
• Option 2: Limiting sector funds to 15-20% of the portfolio is a solid strategy