Exhibit 15
November 3, 2017
Securities and Exchange Commission
100 F Street, N.E.
Washington, DC 20549
Commissioners:
We are aware that our reports dated May 5, 2017, August 4, 2017, November 3, 2017 on our review of interim financial information of Arch Capital Group Ltd. (the “Company”), which are included in the Company's quarterly report on Form 10-Q for the quarter ended March 31, 2017, June 30, 2017, and September 30, 2017, are incorporated by reference in this Registration Statement on Form S-3.
Very truly yours,
/s/ PricewaterhouseCoopers LLP