Core Viewpoint - Shares of grocery delivery service Instacart fell by 11% in after-hours trading due to an investigation by the U.S. Federal Trade Commission (FTC) into the company's pricing practices [1] Group 1 - The FTC has initiated a civil investigative demand against Instacart, as reported by Reuters [1] - Instacart and the FTC have not provided immediate comments regarding the investigation [1]