UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018 or ¨ TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from _____to _____ COMMISSION FILE NUMBER: 001-38202 SOCIAL CAPITAL HEDOSOPHIA HOLDINGS CORP. Cayman Islands 98-1366046 (State or other jurisdiction of incorporation or organ ...