Investments

ISBI invests for the long-term value of its beneficiaries, seeking to meet long-term return objectives while maintaining prudent risk exposure, controlling fees and expenses, and complying with the governing provisions of the Illinois Pension Code and other applicable laws and regulations.

Asset Allocation

ISBI recognizes that the fund’s diversification across asset classes is the primary determinant of meeting risk-adjusted return objectives over time. Therefore, ISBI sets target allocations for various asset classes and the portfolio is periodically rebalanced to meet those targets.

Actual Target
Data as of March 31, 2026
Asset Allocation: Actual vs Target as of March 31, 2026
Asset Class Actual (%) Target (%)
Global Equity44.242
Rate Sensitive Fixed Income21.922
Private Equity10.411
Real Estate9.210
Private Credit9.510
Infrastructure2.83
Multi-Sector Credit2.02

Manager Inquiries

The Board has engaged several strategic partners in discretionary relationships. The Fund Structure graphic, found below, outlines each strategic partner and their respective asset classes, as well as ISBI’s general consultant and other key partnerships. ISBI’s four strategic partners, Hamilton Lane Advisors, The Rock Creek Group, HighVista Strategies, and Franklin Park Associates, have full discretion to select underlying managers within their respective asset class mandates.

Manager Inquiries: Managers interested in working with ISBI should reach out to the appropriate partner(s) as outlined in the graphic below.

Fund Structure

ISBI Fund Structure: The Board of Trustees oversees Staff, who coordinate three partner categories. Discretionary Strategic Partners include Hamilton Lane Advisors (managing Private Credit, Private Equity, Venture Capital, Real Estate Non-Core, and Infrastructure), Rock Creek Group (managing Private Credit, Public Markets Active, Real Estate Core, and Real Estate Non-Core), HighVista Strategies (managing Private Credit and Public Markets Active), and Franklin Park Associates (managing Private Equity). Non-Discretionary Strategic Partners include Rumbline (managing Public Markets Passive) and BlackRock (managing Public Markets Passive and Risk Advisory and Software). The General Consultant is RVK, managing Asset Allocation, Monitoring, Reporting, and Deferred Compensation.