There will be a two-day Amazon Prime Day event this year that will feature big discounts and promotions for Amazon (AMZN) Prime members, but shareholders rarely profit from big deals.

Since the event began in 2015, the average return during Prime Days has been -0.34%, indicating that Amazon stock typically declines slightly during the event. Of the eight Prime Days, only three (2017, 2018, and 2021) have produced positive returns for Amazon stock, while five (2015, 2016, 2019, 2020, and 2022) have produced negative returns.