Fidelity Service Bureau℠ (FSB) is a tech-driven equity trading platform for institutional clients that maximizes liquidity reach and optimizes performance. Fidelity Service Bureau connects the 50+ institutional clients who currently use the platform to the major bulge-bracket firms, other North American agency brokers, and external liquidity providers. By aggregating brokers and liquidity sources, clients can control and manage access to liquidity, and gain transparency into routing choices and liquidity sources. There are over 130 unique avenues of liquidity available via Fidelity Service Bureau. Differentiated liquidity access coupled with execution strategies tailored to client-specific needs help Fidelity Service Bureau clients in their quest for best execution (data as of 12/31/25).