Morningstar shares fall 1.17% premarket after downgrading Saint-Gobain and MTU Aero Engines.

Morningstar, Inc. declined 1.17% in premarket trading. The company downgraded Saint-Gobain to Sell and MTU Aero Engines to Hold, which could have contributed to the negative sentiment. Additionally, Coach parent Tapestry's tariff hit hurting its annual profit target and shares slumping could have also impacted the market's perception of Morningstar's stock.