diff --git a/library/20260622012452_Quantitative_Trading/Quantitative_Trading_Ernest_P_Chan.pdf b/library/20260622012452_Quantitative_Trading_Ernest_P_Chan/Quantitative_Trading_Ernest_P_Chan.pdf similarity index 100% rename from library/20260622012452_Quantitative_Trading/Quantitative_Trading_Ernest_P_Chan.pdf rename to library/20260622012452_Quantitative_Trading_Ernest_P_Chan/Quantitative_Trading_Ernest_P_Chan.pdf diff --git a/library/20260622012452_Quantitative_Trading/README.md b/library/20260622012452_Quantitative_Trading_Ernest_P_Chan/README.md similarity index 100% rename from library/20260622012452_Quantitative_Trading/README.md rename to library/20260622012452_Quantitative_Trading_Ernest_P_Chan/README.md diff --git a/library/20260622012452_Quantitative_Trading/notes.ipynb b/library/20260622012452_Quantitative_Trading_Ernest_P_Chan/notes.ipynb similarity index 100% rename from library/20260622012452_Quantitative_Trading/notes.ipynb rename to library/20260622012452_Quantitative_Trading_Ernest_P_Chan/notes.ipynb