This guide discusses the critical role of data analytics in the success of Accountable Care Organizations (ACOs). It outlines how analytics can support ACOs in transitioning from fee-for-service to risk-bearing contracts, addressing the challenges of balancing fiscal performance with quality care. The document details the importance of a robust data platform, emphasizing the need for claims data and clinical information integration to drive performance. It presents five key criteria for assessing an ACO's analytical capabilities, including the need for high-quality data and effective workflows. The guide also highlights common data quality issues that can impact performance and offers strategies for building trust in analytics. Additionally, it shares a case study demonstrating how enhanced analytics can lead to improved patient outcomes and operational efficiency. The document serves as a comprehensive resource for ACOs looking to leverage data analytics for better performance in value-based care.