Is there a bubble in technology? Goldman Sachs Research's Peter Oppenheimer doesn't think so. Despite the recent stumbles in some of tech's biggest names, the sector continues to dominate global stock indexes. "The thing that's really set apart [today's] technology revolution as we're seeing it expressed in the stock market since the financial crisis is that these companies have been very successful," says Oppenheimer. "They've been very dominant in terms of returns, but they've also been extraordinarily successful in terms of their earnings power, and their valuations have not become that extreme." Oppenheimer draws attention to just how large the tech sector has become by comparing tech companies' valuations to country GDPs and discusses the challenges facing today's most dominant players. This podcast was recorded on July 19, 2018. All price references and market forecasts correspond to the date of this recording. This podcast should not be copied, distributed, published or reproduced, in whole or in part. The information contained in this podcast does not constitute research or a recommendation from any Goldman Sachs entity to the listener. Neither Goldman Sachs nor any of its affiliates makes any representation or warranty, as to the accuracy or completeness of the statements or any information contained in this podcast and any liability therefor (including in respect of direct, indirect or consequential loss or damage) is expressly disclaimed. The views expressed in this podcast are not necessarily those of Goldman Sachs, and Goldman Sachs is not providing any financial, economic, legal, accounting or tax advice or recommendations in this podcast. In addition, the receipt of this podcast by any listener is not to be taken as constituting the giving of investment advice by Goldman Sachs to that listener, nor to constitute such person a client of any Goldman Sachs entity. Copyright 2018 Goldman Sachs & Co. LLC. All rights reserved.