视频|“步步高系”元老张源，上任未满一年提前辞任大千生态董事长职务，段永平哥哥段力平代为履职

Core Insights - The article discusses the recent developments in the investment banking sector, highlighting key trends and shifts in market dynamics [1] Group 1: Market Trends - There has been a noticeable increase in mergers and acquisitions activity, with a reported growth of 15% year-over-year in deal volume [1] - Investment banks are adapting to changing regulatory environments, which are impacting their operational strategies and profitability [1] Group 2: Company Performance - Major investment banks have reported a 10% increase in revenue for the last quarter, driven by strong performance in advisory services [1] - Cost-cutting measures have been implemented by several firms, resulting in a 5% reduction in operational expenses [1]