UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2019 o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-33378 DISCOVER FINANCIAL SERVICES (Exact name of registrant as specified in its charter) Delaware 36-2517428 (State or other jurisd ...

Discover Financial Services (NYSE:DFS) Q1 2019 Earnings Conference Call April 25, 2019 6:00 AM ET Company Participants Craig Streem - Head, Investor Relations Roger Hochschild - Chief Executive Officer Mark Graf - Chief Financial Officer Conference Call Participants Betsy Graseck - Morgan Stanley Sanjay Sakhrani - KBW Ryan Nash - Goldman Sachs Bill Carcache - Nomura Instinet Chris Brendler - Buckingham Don Fandetti - Wells Fargo Moshe Orenbuch - Credit Suisse John Hecht - Jefferies Chris Donat - Sandler O'N ...

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 year ended December 31, 2018 o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-33378 DISCOVER FINANCIAL SERVICES (Exact name of registrant as specified in its charter) Delaware 36-2517428 (State or other jurisdiction of in ...