Stressing Transition Matrices

Release of version 0.4.1 of the transitionMatrix package focuses on stressing transition matrices Further building the open source OpenCPM toolkit this realease of transitionMatrix features: Feature: Added functionality for conditioning multi-period transition matrices Training: Example calculation and visualization of conditional matrices Datasets: State space description and CGS mappings for top-6 […]

Release 0.4 of transitionMatrix adds Aalen-Johansen estimators and many usability enhancements

Release of version 0.4 of the transitionMatrix package Further building the open source OpenCPM toolkit this realease of transitionMatrix features: Feature: Added Aalen-Johansen Duration Estimator Documentation: Major overhaul of documentation, now targeting ReadTheDocs distribution Training: Streamlining of all examples Installation: Pypi and wheel installation options Datasets: Synthetic Datasets in long […]

Comparing IFRS 9 and CECL provision volatility

Is the IFRS 9 or CECL standard more volatile? Its all relative Objective In this study we compare the volatility of reported profit-and-loss (PnL) for credit portfolios when those are measured (accounted for) following respectively the IFRS 9 and CECL accounting standards. The objective is to assess the impact of […]

NACE Economic Activity Pictograms

Representing economic activity using pictograms Visualization can produce significant insights when applied to quantitative data. It is currently undergoing a renaissance that mirrors other developments in computing and data science. Sophisticated open source libraries such as d3.js or matplotlib, to name but a couple, are enabling an ever wider range […]

Credit Portfolio PnL volatility under IFRS 9 and CECL

Credit Portfolio PnL volatility under IFRS 9 and CECL Objective We explore conceptually a selection of key structural drivers of profit-and-loss (PnL) volatility for credit portfolios when profitability is measured following the principles underpinning the new IFRS 9 / CECL standards Methodology We setup stylized calculations for a credit portfolio […]

Credit Portfolio Management in the IFRS 9 / CECL and Stress Testing Era

Credit Portfolio Management in the IFRS 9 / CECL and Stress Testing Era The post-crisis world presents portfolio managers with the significant challenge to asimilate in day-to-day management the variety of conceptual frameworks now simultaneously applicable in the assessment of portfolio credit risk: The first major strand is the widespread […]

IFRS 9 Expected Credit Loss and Risk Capital

The new IFRS 9 financial reporting standard IFRS 9 (and the closely related CECL) is a brand new financial reporting standard developed and approved by the International Accounting Standards Board (IASB). Strictly speaking IFRS 9 concerns only the accounting and reporting of financial instruments (e.g. bank loans and similar credit […]

A Risk Agnostic Approach to European Safe Bonds (ESBies) Tranching

What are European Safe Bonds? While the creation of the eurozone was a landmark of the European integration process, the financial crisis highlighted that the eurozone remains an incomplete design which can lead to unpredictable and adverse situations in the event of a (the) next major crisis. One of the […]

Release of version 0.3 of the Concentration Library

Release of version 0.3 of the Concentration Library Further building out the OpenCPM set of tools, we release version 0.3 of the Concentration Library. This python library for the computation of various concentration, diversification and inequality indices. The below list provides documentation URL’s for each one of the implemented indexes […]

OpenCPM NPL Database

First Release: OpenCPM NPL Database Further building out the OpenCPM set of tools, we took the Eupean Banking Authority’s recommended Non-Performning Loan templates and created an #opensource production grade database for capturing NPL portfolio data sets. Motivation for Building an open source database based on EBA’s Standardized NPL Templates In […]

Data Scientists Have No Future

Data Scientists have no future. Currently the working definition of a Data Scientist seems to be: “whatever it takes to get the job done in a digital #tech domain that we have long neglected but which is now coming back to haunt us” 🙂 That’s nice urgency while it lasts, […]

Four individuals that can look straight into your eyes

Here are four individuals that can look straight into your eyes * Torvalds developed the #linux operating system, the software engine now powering anything from the tiniest #raspberrypi to the scariest supercomputer. Humanity’s best guarantee that the digital era remains an equal playing field * Mullenweg developed the #wordpress blogging […]

Machine Learning Ballyhoo

Are you getting a bit tired with all the machine learning ballyhoo? You can blame it all on a German mathematician(*), Carl Friedrich Gauss, who started the futuristic “mega-trend” back in 1809: He showed us how to “train” a straight line to pass nicely through a cloud of unruly, scattered […]

If programming languages were human languages which one would be which?

If programming languages were human languages which one would be which? #python -> English. Simple and easy. Spoken everywhere, from lowly scripts, to web servers to #datascience. You’re never stranded if you know it #rlang -> German. Rigorous. Capable. Sometimes a bit convoluted. Not spoken much outside the Germanic world […]

Transition Matrix Library First Release

Open Risk released version 0.1 of the Transition Matrix Library Motivation State transition phenomena where a system exhibits stochastic (random) migration between well defined discrete states (see picture below for an illustration) are very common in a variety of fields. Depending on the precise specification and modelling assumptions they may […]

The Zen of IFRS 9 Modeling

At Open Risk we are firm believers in balancing art and science when developing quantitative risk tools. The introduction of the IFRS 9 and CECL accounting frameworks for reporting credit sensitive financial instruments is a massive new worldwide initiative that relies in no small part on quantitative models. The scope […]

Loan Level Templates Using Python

In this Open Risk Academy course we figure step by step how to use python to work with Loan Level Templates, using the ECB SME template as an example. Overview of the loan level template Manipulating spreadsheets with Python The Python Dictionary Organization of Portfolio Data Generating Test Portfolios Get […]

Guiding principles for a viable open source operational risk model

Guiding principles for a viable open source operational risk model (OSORM) Such a framework: Must avoid formulaic inclusion of meaningless risk event types (e.g., legal risk created by the firm’s own management decisions) or any risks where the nature and state of current knowledge does not support any meaningful quantification. […]