Model portfolios serve as pre-designed recipes for building portfolios, offering advisors a time-saving way to manage investments while focusing on financial planning and client relationships. They are often composed of mutual funds and ETFs, with a growing preference for active ETFs due to their cost-efficiency and flexibility. 

Popular providers include BlackRock, Vanguard, and American Funds, offering core allocations like 60/40, income-focused, and all-equity models. These portfolios appeal to advisors for their scalability and customization options, such as incorporating funds from multiple asset managers to diversify perspectives. 

While they are typically low-cost and tax-optimized, a drawback is their relative lack of transparency compared to mutual funds or ETFs. Investors should ask their advisors about the track record, due diligence, and success metrics of any model portfolio being recommended.

Finsum: We love the use of model portfolios to create customized and thematic strategies for tailored solutions to clients problems.