Appendix available here: "https://ssrn.com/abstract=3381004" https://ssrn.com/abstract=3381004.We examine the design and effectiveness of the 4pm Fix, the most important benchmark in FX markets, using a unique dataset of trader identified orderbook data from an inter- dealer venue. We propose...

In this paper, we characterise the liquidity provision and price discovery roles of dealers and HFTs in the FX spot market during the sample period between 2012 and 2015. We find that they have different responses to adverse market conditions: HFT liquidity provision is less sensitive to spikes...