Amazon's purchase of Whole Foods in 2017 sent shock waves through the grocery industry and hammered the stocks of traditional grocery stores.
Eighteen months later, Whole Foods stores don't look much different.
Prices were a little cheaper for a period of time, then rose again. The stores started offering some new services, including curbside pickup and delivery, but grocery stores such as Walmart and Kroger were already far ahead of Amazon in rolling out those options.
For a while, it seemed that initial speculation around Amazon's impact on the grocery industry was overblown.