Using high frequency data from the London Stock Exchange (LSE), we investigate the relationship between informed trading and the price impact of block trades on intraday and inter-day basis. Price impact of block trades is stronger during the first hour of trading; this is consistent with the...

In contrast to the Reg NMS regime in the US, the European Markets in Financial Instruments Directive (MiFID) does not impose a formal exchange trading linkage or guarantee the best execution price. This raises concerns about consolidated market quality in an increasingly fragmented European...

We present the first evidence of the impact of dark trading on adverse selection in an aggregate market. At moderate levels of dark trading, a positive liquidity effect dominates an information acquisition disincentive effect, such that dark trading induces reductions in both adverse selection...