A tale of two cities: Inter-market latency and fast-trader competition

Satchit Sagade, Stefan Scharnowski, Erik Theissen and Christian Westheide

No 430, SAFE Working Paper Series from Leibniz Institute for Financial Research SAFE

Abstract: We examine the impact of increasing competition among the fastest traders by analyzing a new low-latency microwave network connecting exchanges trading the same stocks. Using a difference-in-differences approach comparing German stocks with similar French stocks, we find improved market integration, faster incorporation of stock-specific information, and an increased contribution to price discovery by the smaller exchange. Liquidity worsens for large caps due to increased sniping but improves for mid caps due to fast liquidity provision. Trading volume on the smaller exchange declines across all stocks. We thus uncover nuanced effects of fast trader participation that depend on their prior involvement.

Keywords: Latency; Market Fragmentation; Arbitrage; Liquidity; Price Efficiency; High-Frequency Trading (search for similar items in EconPapers)
JEL-codes: G10 G14 G15 (search for similar items in EconPapers)
Date: 2024
New Economics Papers: this item is included in nep-eec, nep-fdg, nep-mst, nep-net and nep-ure
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Persistent link: https://EconPapers.repec.org/RePEc:zbw:safewp:303051

DOI: 10.2139/ssrn.3475442

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