The California Public Employees’ Retirement System (CalPERS) announced today they have gone live with Artemis, a new asset allocation software system developed by Ryedale, a leading portfolio management technology provider based in London.

The system currently provides comprehensive portfolio management and order management solutions for CalPERS' Affiliate Program. The Affiliate Program is made up of several trust plans independent of the Public Employees' Retirement Fund which CalPERS administers and invests on their behalf.

This system embraces the latest cloud technology and reduces the operational risk of a process that previously had a large manual component. It improves efficiencies and reduces operational costs, so we are very pleased with the system as a whole.

Dan Bienvenue, CalPERS' Senior Investment Officer of Global Equity

Artemis provides the boof of record for the Affiliate Funds' policy weights and the discretion thresholds around them. It also serves as the investment book of record (IBOR) for unit-level holdings, which can be aggregated and compared to policy weights to recommend changes in holdings. The new system supports oversight and control of the full order and execution process, and it transmits those investment instructions securely and electronically.

Artemis also has the ability to scale to a larger platform beyond the $13bn Affiliate Program. In the future, it may be expanded for use across the entire Public Employees' Retirement Fund.

Ryedale's understanding of the complex management needs of an organisation such as CalPERS, and their specialisation in turn-key asset allocation, portfolio management, and trade order management solutions was critical to the success of Artemis.

Jul 24, 2015

Sacramento, United States

About CalPERS

For more than eight decades, CalPERS has built retirement and health security for State, school, and public agency members who invest their lifework in public service. Our pension fund serves more than 1.7m members in the CalPERS retirement system and administers benefits for more than 1.4m members and their families in our health program, making us the largest defined-benefit public pension in the US. CalPERS' total fund market value currently stands at approximately $300bn. For more information, visit

About Ryedale

Ryedale delivers a modern, cloud-based, full-service IT platform for serious investment businesses. Its software provides industry-leading support for model-driven and quantitative investment strategies, embracing index investments, smart-beta, custom indices, asset allocation, overlays and hedging. Ryedale's customers include several globally recognized asset management firms and institutions. For more information about Ryedale investment management solutions, please visit