Compare stocks

Pershing Square Holdings, Ltd. (PSH) is a Guernsey-based investment holding company structured as a closed-ended fund, primarily engaged in acquiring and holding significant, though typically non-controlling, positions in a concentrated portfolio of large-capitalization companies. Incorporated on February 2, 2012, PSH commenced operations on December 31, 2012, and its public shares began trading on Euronext Amsterdam on October 13, 2014, followed by a listing on the London Stock Exchange on May 2, 2017. The company aims to maximize its long-term compound annual growth in intrinsic value per share by focusing on high-quality businesses with predictable, recurring cash flows and substantial barriers to entry. PSH is managed by Pershing Square Capital Management, L.P., founded by William A. Ackman in 2004, which employs an activist investment strategy to drive value creation within its portfolio companies.

Berkshire Hathaway is a holding company with a wide array of subsidiaries engaged in diverse activities. The firm's core business segment is insurance, run primarily through Geico, Berkshire Hathaway Reinsurance Group, and Berkshire Hathaway Primary Group. Berkshire has used the excess cash thrown off from its operations to acquire Burlington Northern Santa Fe (railroad), Berkshire Hathaway Energy (utilities and energy distributors), and the companies that make up its manufacturing, service, and retailing operations (which include Precision Castparts, Lubrizol, Clayton Homes, Marmon, and IMC/ISCAR). The conglomerate is unique in that it is run on a completely decentralized basis.