Acquisitions and Mergers of the Big Four

The four largest commercial banks in the USA control more than 43% of assets among the large commercial banks in the U.S. - and we can prove it, using data from the Federal Reserve itself.

This video tutorial playlist walks through a real-world data engineering workflow used in the financial industry, scraping quarterly large commercial bank data directly from the Federal Reserve, transforming it through a complete ETL pipeline, and applying linear regression with scikit-learn to analyze the growing concentration of assets among the "Big Four" U.S. banks (Chase, Bank of America, Citibank, Wells Fargo).

The playlist culminates in building interactive Plotly visualizations that reveal how these banks have grown from holding roughly $2.04 trillion combined in 2003 to over $10 trillion today: displaying an average growth of $21 billion per quarter. This exact workflow powers a live Dash app that has gained recognition in the economics community for making complex financial trends accessible.

Watch the playlist!