Amazon (AMZN -2.62%) did a good job reducing costs, but there was a deceleration in a critical segment that's weighing on the stock price. Fool.com contributor and finance professor Parkev Tatevosian discusses why Amazon's stock price fell after the company executed well in the quarter.

*Stock prices used were the afternoon prices of April 28, 2023. The video was published on April 30, 2023.