New regulations promote the role of Central Counter-Parties (CCPs) as insurers of counterparty risk to stabilize derivative markets. Whereas the US favors monopolistic CCPs, the EU promotes the coexistence of several CCPs for a given asset class. In this paper, we shed light on the competition...

Is something wrong with the structure of the U.S. stock market? Both industry participants and scholars have recently faulted the equity market for its lack of innovation. In particular, they have emphasized that stock exchanges may not have the right incentives to provide innovative solutions...

Automated market makers (AMMs) are algorithms that pool liquidity and make it available to liquidity takers by automatically and algorithmically determining an execution price of a trade. In the recent markets for digital assets, a growing number of blockchain-based decentralized exchanges (DEX)...

We study the effect of the NASDAQ systems integration on transaction costs, market quality and order characteristics. It is found that the NASDAQ Single Book, on average, has reaped a greater market share and lead to a more remarkable increase in less actively trade stocks. The quoted bid-ask...

This research is based on an empirical analysis of the impact of HFT activity on the stock in the SET50 index trading in the Stock Exchange of Thailand (SET), using publicly-available trade-by-trade tick data for the period between January 01, 2016, and June 30, 2018. The HFT data is illustrated...

This study seeks to understand whether and to what extent High Frequency Trading (HFT) affects the probabilistic properties of the stock returns in five markets. More specifically, it focuses on the impact of HFT/Machine trading on five major stock indices, DAX, Nikkei 225, S&P 500, Russell...

Predicting stock market movements is a well-known problem of interest. Now-a- days social media is perfectly representing the public sentiment and opinion about current events. Especially, Twitter has attracted a lot of attention from researchers for studying the public sentiments. Stock market...

Based on granular NASDAQ HFT data, we find that HFT activity in the stock market increases market-making costs in the options markets via two channels: the hedging channel and the arbitrage channel. HFTs' liquidity-demanding orders increase the hedging costs due to a higher stock bid-ask spread...

We develop measures of stock-specific trading activity based on durations of sequences of consecutive trades with fixed cumulative values. Trade sizes and signed-trade imbalances rise with activity, while price impacts generally fall, but not always, due to endogenous variation in liquidity...