This book examines the banking innovation and performance improvements arising from Bank-FinTech M&As. It explores the trends and characteristics of M&A operations in the banking industry, with a focus on the threats and opportunities that arise from a bank's equity investments in FinTech firms and the impact on their performance. It offers a holistic assessment of bank performance metrics, such as profitability, operational efficiency, riskiness, and Environmental, Social, and Governance (ESG) score. Furthermore, the book presents novel and valuable analytical perspectives by analysing the role played by business models on these performance metrics following the M&A operations. The book supports strategic decision-making processes for banking practitioners while providing new policy implications for regulators and banking supervisory authorities. Finally, the book will be of interest to researchers and students in finance and digital innovation in banking.