This book constitutes the refereed proceedings of the 36th Australasian Database Conference on Databases Theory and Applications, ADC 2025, held in Sydney, NSW, Australia, during December 4–7, 2025.The 29 full papers presented in this volume are carefully reviewed and selected from 63 submissions. The papers of CDFC 2025 organized in topical sections as follows: Intelligent Investment and Quantitative Trading; Financial Risk Management.