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Engagement Goal:

A client required a build of an independent Model Validation Unit for Counterparty Credit Risk, including policy, structure of validation activities, detailed validation tasks, approval and reporting processes, as well as the implementation and execution of the first complete model validation cycle.

Project Description:

Quaternion lead the implementation of an independent model validation unit, covering the organizational setup, policy definition, process setup, including approval and reporting processes, and definition of detailed validations scope. Our client passed internal and independent audits by the regulator with regards to the compliance of its model validation activities.

Engagement Goal:

A global client required an independent model validation of their front office pricing model suite, covering all main product classes, i.e., Interest Rates, FX, Commodities and Equities.

Project Description:

Quaternion provided an independent quantitative model validation and benchmarking for a complete front office pricing suite. The model validation activities led to a major improvement program for the central components of the pricing models.

Engagement Goal:

A client required an independent model validation of front office mark-to-market methodology, taking into account all main product classes, including: Interest Rates, FX, Commodities and Equities.

Project Description:

Quaternion Quant Services provided an independent quantitative model validation and benchmarking for a front office mark-to-market valuation for a wide spectrum of derivative securities across all main product classes. Quaternion implemented it’s Open-Source Risk Engine (ORE) as a benchmarking tool to independently verify the front office valuations.

Engagement Goal:

A bank required an independent model validation of an internal risk and valuation system for structured finance securities such as Asset-Backed Securities (ABS), Mortgage-Backed Securities (MBS), Commercial MBS, Residential MBS, Credit Default Swap (CDS) on ABS and Total Return Swap on ABS.

Project Description:

Quaternion Quant Services provided an independent quantitative and qualitative validation of the bank's system used for marking and sensitivity analysis of structured finance securities. The bank's solution is based on a third-party vendor library and, therefore, the specifics needed to be taken into account. The validation included integration tests, input slider tests and consistency checks of the various marking metrics (yield, discount margin, Z-spread), the sensitivities (CD01, DV01) as well as WAL, duration and convexity. To validate that optionality is appropriately captured, we also performed consistency checks and benchmarks of the calculation of option adjusted spread (OAS) and its sensitivities (OAD, OAC). Quaternion delivered a full validation report in compliance with the bank's model governance policy.