Operator
Good day, everyone. Welcome to Selective Insurance Group s Second Quarter 2021 Earnings Call. At this time, for opening remarks and introductions, I would like to turn the call over to Senior Vice President, Investor Relations and Treasurer, Rohan Pai. Thank you. You may begin.
John J. Marchioni
President and Chief Executive Officer
Thanks, and good morning, everyone. We re simulcasting this call on our website, selective.com, and the replay will be available until August 20, 2021. Our supplemental investor package, which provides GAAP reconciliations of any non-GAAP financial measures referenced today also is available on the Investors page of our website. Today, we will discuss our results and business operations using GAAP financial measures that are also included in our annual, quarterly and current report filed with the U.S. Securities and Exchange Commission and non-GAAP operating income and non-GAAP operating return on common equity, which we use to analyze tre