Largest M&A deals worldwide 2018, by transaction value

This statistic presents the largest merger and acquisition deals worldwide in 2018, ranked by transaction value. The acquisition of Express Scripts Holding Co. by Cigna Corp., valued at 67.85 billion U.S. dollars, proved to be the worldwide largest M&A deal of the year 2018.

Mergers and acquisitions in the U.S. – additional information

Despite Comcast Corporation’s acquisition of Time Warner Cable Inc in 2014 being the largest deal of the year in terms of value, a ranking of the value of M&A deals in the U.S. in 2016, by industry reveals that the technology industry did not dominate the field in 2016. Technology, M&A deals amounted to 176.7 billion U.S. dollars but successful deals in the energy, mining and utilities industry surpassed this total with 337.4 billion U.S. dollars.
In a survey among M&A professionals from U.S. corporations, private equity firms and investment banks in 2014, respondents were asked to forecast; Which industries do you think will be the most active in M&A in 2016? The responses ranked the energy industry in third place with a 21 percent share of respondents. In first place was the technology industry, with 70 percent of respondents believing that they would be the most active in the year ahead.
In the same survey, respondents were asked about the main reasons behind acquisitions planned in the U.S. for 2016 in order to determine what motivates the practice. It was revealed that 25 percent of respondents stated that opportunity of a target becoming available was the primary factor in planning a merger whilst a further 36 percent of respondents stated there reason was in order to expand the geographic reach of their company.

Largest merger and acquisition deals worldwide in 2018, by deal value

Purchaser/target companyTransaction value in billion U.S. dollar
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Release date

February 2019



Survey time period


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Statistics on "Mergers & acquisitions"

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