Nature of Business On July 12, 2016, IHS Inc. (IHS), a Delaware corporation, Markit Ltd. (Markit), a Bermuda exempted company, and Marvel Merger Sub, Inc. (Merger Sub), a Delaware corporation and an indirect and wholly owned subsidiary of Markit, completed a merger (Merger) pursuant to which Merger Sub merged with and into IHS, with IHS surviving the Merger as an indirect and wholly owned subsidiary of Markit. Upon completion of the Merger, Markit became the combined group holding company and was renamed IHS Markit Ltd. (IHS Markit or we or us or our). In accordance with the terms of the Merger agreement, IHS stockholders received 3.5566 common shares of IHS Markit for each share of IHS common stock they owned and IHS Inc. common stock was delisted from the New York Stock Exchange and deregistered under the Securities Exchange Act. The Merger has been accounted for as a business combination in accordance with Accounting Standards Codification (ASC) Topic 805. This standard requires that one of the two companies in the Merger be designated as the acquirer for accounting purposes based on the evidence available. We have treated IHS as the acquiring entity for accounting purposes, and accordingly, the Markit assets acquired and liabilities assumed have been adjusted based on fair value at the consummation of the Merger. Any excess of the purchase price over the fair value of identified assets acquired and liabilities assumed has been recognized as goodwill. In identifying IHS as the acquiring entity for accounting purposes, IHS Markit took into account the voting rights of all equity instruments, the intended corporate governance structure of the combined company, and the size of each of the companies. In assessing the size of each of the companies, IHS Markit evaluated various metrics, including, but not limited to: assets, revenue, operating income, EBITDA, Adjusted EBITDA, market capitalization, and enterprise value. No single factor was the sole determinant in the overall conclusion that IHS is the acquirer for accounting purposes; rather, all factors were considered in arriving at our conclusion. Our segments are organized to address customer needs by industry, as follows:  Resources , which includes our Energy and Chemicals product offerings;  Transportation, which includes our Automotive; Maritime &amp; Trade; and Aerospace, Defense &amp; Security product offerings;  Consolidated Markets &amp; Solutions (CMS), which includes our Product Design; Technology, Media &amp; Telecom; and Economics &amp; Country Risk product offerings; and  Financial Services , which includes our Information, Processing, and Solutions product offerings, as well as our product offerings from Ipreo, our recent acquisition. We offer the majority of our products and services through recurring fixed and variable fee arrangements, and this business model has historically delivered stable revenue and predictable cash flows. Our business has seasonal aspects. Our first quarter generally has our lowest quarterly levels of revenue and profit. We also experience event-driven seasonality in our business; for instance, CERAWeek, an annual energy conference, is typically held in the second quarter of each year. Another example is the biennial release of the Boiler Pressure Vessel Code (BPVC) engineering standard, which generates revenue for us predominantly in the third quarter of every other year. The most recent BPVC release was in the third quarter of 2017.