Trading & Execution
Electronic and algorithmic trading, routing, market access, venue connectivity, execution quality and trading controls.

Capital Markets
Develop the systems and services supporting market participants.
Overview
Market-infrastructure operators and securities-service providers connect participants through trading, clearing, settlement, custody and administration.
Capmark supports platform change, participant connectivity, operating processes, resilience and regulatory implementation across these businesses.
We bring experience of market interfaces and institutional operations to the requirements of operators, working with their teams and delivery partners.
What we do
Replacing or upgrading a matching engine, clearing system or settlement platform affects every participant. We plan and deliver operator-side platform change with member impact managed from the start: specification, testing windows, migration rehearsal and cutover with fallback.
We have built more than 80 market connections to venues, CCPs and custodians from the member side. For operators, that experience shapes participant-facing programmes: interface specifications members can implement, test environments that behave like production, and onboarding that runs to schedule.
Operations inside a CCP, CSD or custodian carry obligations the member side does not: default management readiness, settlement finality, asset safety. We design and strengthen these operations — capacity, controls, exception handling — to the standard the operator's role demands.
For custodians and administrators we work on the processing chain — trade capture, settlement, corporate actions, pricing, NAV and client reporting — reducing manual touches and rework, and rebuilding reconciliation and oversight so service levels are met with evidence.
Market operators run services whose disruption affects the whole market. We map critical services and their dependencies, set and test recovery expectations against realistic scenarios, and turn findings into a remediation plan with owners and dates.
Rule changes land differently on an operator: they change the rulebook, the interfaces and the obligations to participants at once. We deliver that change end to end — interpretation into requirements, build, participant communication and the evidence of operation.
What to expect
The team working on your side has delivered against venue, CCP and custodian interfaces from the member side, so participant impact is anticipated early rather than discovered late. Work is planned around market hours, testing windows and participant readiness, and your own people are part of the delivery team throughout, so the capability stays in-house after we leave.
We work as a delivery partner inside the operator's own change portfolio as readily as on a single programme.
Establish the current state, the constraints, the risks and the value at stake.
Shape the target model and the business case with the executives who own the outcome.
Stand up the team, the plan and the governance around the outcome.
Design, build and test the change, with the business alongside.
Cutover, hypercare and handover, so the business runs it under its own control.
The same five stages on every engagement, led by senior practitioners end to end. How we work
Insights
Get in touch
Tell us what needs to change and where the pressure or risk is showing.