ソース:[1] Jefferies (JEF) Soars 5.8%: Is Further Upside Left in the Stock? (https://finance.yahoo.com/news/jefferies-jef- ...)[2] SMBC Group and Jefferies Significantly Expand Their Global Strategic Alliance – Company Announcement - FT.com - Markets data (https://vertexaisearch.cloud.google.com/groun ...)[3] Jefferies (JEF) Soars 5.8%: Is Further Upside Left in the Stock? - September 19, 2025 (https://vertexaisearch.cloud.google.com/groun ...)