A bag of dark chocolate Hershey’s Kisses is now a couple ounces smaller than before. A two-pack of Reese’s Peanut Butter Cups is a tenth of an ounce lighter. And Cadbury milk bars are about 10 percent skimpier.

According to Hershey’s official website, the size of a Hershey’s Kiss has not changed in over 100 years. The current version of the Kiss is approximately 1-inch in diameter, and there is no evidence that it has ever been smaller than this.

Examining the Hershey Company’s stock price movements before, during, and after the sale window, Sitkoff and Klick found that the sale announcement was associated with a positive abnormal return of over 25% and that canceling the sale was followed by a negative abnormal return of nearly 12%.

Hershey's Kisses have undergone slight variations in size over the years due to changes in manufacturing processes and ingredient formulations. However, any perceived decrease in...

Theories abounded as to why the peaks had broken off, and Hershey's quickly responded to media outlets including The Takeout to say that the company was "working to improve the appearance." Now, the confectioner says it's solved the issue, and Kisses' tips should be structurally sound once again.