Shareholder equity in United Parcel Service (UPS) fell sharply in the middle of 2021, with the stock losing up to 6% of its value in a single day. Although the fall cannot be conclusively pinned on any single factor, the fall was likely due to the company's revision of its post-pandemic earnings potential. During a webcast with investors and shareholders, UPS projected that its future operating margins would be lower than expected, causing some shareholders to doubt the logistics company's competitiveness with the likes of Amazon.