Technical paper

Operational VAR: meaningful means

Making the assumption that the distribution of operational loss severity has finite mean, Klaus Böcker and Jacob Sprittulla suggest a refined version of the analytical operational value-at-risk theorem derived in Böcker & Klüppelberg (2005), which…

A telling scope

The number of technical articles submitted each year to Risk has stabilised at around 90, and a high proportion of them are still about credit derivatives and credit portfolio risk analysis. In fact, in our Cutting Edge pages and behind the scenes we…

The saddlepoint method and portfolio optionalities

Richard Martin describes the application of saddlepoint methods to the calculation of tranche payouts and expected shortfall in loss distributions. Aside from computational use in their own right, the resulting formulas motivate a forthcoming discussion…

Maximum draw-down and directional trading

Maximum draw-down measures the worst drop in a market in a given time period. Jan Vecer shows how to price and replicate this event. Replication can be naturally linked to existing popular trading strategies, such as momentum or contrarian trading

Modelling natural gas futures returns

In this article, Mats Kjaer and Ehud Ronn propose and estimate the correlation matrix of natural gas futures returns. They describe the relationship between the correlation and the time between two contracts' maturities, along with the number of 'April'…

Cutting edges using domain integration

Zhengyun Hu, Jeroen Kerkhof, Paul McCloud and Jorg Wackertapp present the semi-analytic lattice integrator tree, a domain integrator method for pricing derivatives. This method can eliminate almost all numerical noises in derivatives pricing, and…

Optimising omega

Optimising a portfolio's omega generally requires non-linear optimisation methods. Helmut Mausser, David Saunders and Luis Seco show that, under suitable conditions, a simple change of variables transforms the problem into a linear program that is much…

You need to sign in to use this feature. If you don’t have a Risk.net account, please register for a trial.

Sign in
You are currently on corporate access.

To use this feature you will need an individual account. If you have one already please sign in.

Sign in.

Alternatively you can request an individual account here