Trading lightly: cross-impact and optimal portfolio execution

A liquidity model for basket of correlated securities is presented

diamond tree and propagator


Iacopo Mastromatteo, Michael Benzaquen, Zoltan Eisler and Jean-Philippe Bouchaud model the liquidation costs of a basket of correlated instruments by generalising the linear propagator model previously used for single instruments, obtaining an arbitrage-free cost model. They illustrate their results using a pool of US stocks, showing that neglecting cross-impact effects leads to an incorrect estimation of liquidity and results in suboptimal execution strategies that

Only users who have a paid subscription or are part of a corporate subscription are able to print or copy content.

To access these options, along with all other subscription benefits, please contact [email protected] or view our subscription options here:

You are currently unable to copy this content. Please contact [email protected] to find out more.

To continue reading...

You need to sign in to use this feature. If you don’t have a 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: