Lincoln International and S&P Dow Jones Indices Collaborate to Bring Enhanced Transparency to Private Credit Markets CHICAGO, February 23, 2026 —Lincoln International, a global investment banking advisory firm, today announced a strategic collaboration with S&P Dow Jones Indices (S&P DJI) to launch the S&P Lincoln Senior Debt Index Series, which includes the U.S. S&P Lincoln Senior Debt Index and Europe S&P Lincoln Senior Debt Index.