Guggenheim downgraded Portillo's to Neutral from Buy without a price target. After opening eight new stores planned for 2026, ortillo's's development will slow in 2027 to 4-6 additions as it works to get out of existing leases, the analyst tells investors in a research note. The firm believes the company's search for a new growth design that generates the return on equity to support accelerated development will take time to play out.