LIVN vs AB Comparison

UK-based LivaNova was born of a combination of Cyberonics in the US and Sorin in Italy. The medical-device firm is primarily focused on cardiopulmonary solutions (with heart-lung machines and oxygenation equipment) as well as neuromodulation devices for treatment-resistant epilepsy and depression. Following the merger, LivaNova divested its cardiac rhythm management, heart valve, and extracorporeal membrane oxygenation businesses. It derives roughly half of its revenue from the US market, another 21% from Europe, and the remainder from the rest of the world.

AllianceBernstein provides investment management services to institutional (41% of assets under management), retail (42%), and private (17%) clients through products that includes mutual funds, hedge funds, and separately managed accounts. At the end of July 2025, the company had $829 billion in managed assets, composed primarily of fixed-income (36% of AUM) and equity (42%) strategies, with other investments (made up of asset allocation services and certain other alternative investments) accounting for the remainder.