In this paper, we draw on network analysis and a sample of derivatives data from a trade repository to demonstrate how the systemic importance of derivatives market participants may be measured. As trade repository data become more comprehensively available to authorities, the same measures...

The initial margin requirements for a portfolio of derivatives are typically calculated using a risk model. Common risk models are procyclical: margin requirements for the same portfolio are higher in times of market stress and lower in calm markets. This procyclicality can cause liquidity...