Competition between High-Frequency Traders, and Market Quality

NYU Stern Microstructure Meeting 2013

61 Pages Posted: 14 May 2013 Last revised: 4 Dec 2013

See all articles by Johannes H. Breckenfelder

Johannes H. Breckenfelder

European Central Bank (ECB) - Financial Research

Date Written: November 1, 2013


This is the first empirical evidence on the competition between high-frequency traders (HFTs) and its influence on market quality. We exploit the first entries of international HFTs into the Swedish equity market in 2009 and conduct a difference-in-differences analysis using trade-by-trade data. To further identify the effect, we use the Federation of European Securities Exchanges (FESE) tick size harmonization as an exogenous event that caused HFTs to start trading in stocks. When HFTs compete for trades their liquidity consumption increases. As a result, liquidity deteriorates significantly and short-term volatility rises.

Keywords: competition, high-frequency trading, tick size harmonization, FESE, entry, exit

JEL Classification: G12, G14, G15, G18, G23, D4, D61

Suggested Citation

Breckenfelder, Johannes H., Competition between High-Frequency Traders, and Market Quality (November 1, 2013). NYU Stern Microstructure Meeting 2013. Available at SSRN: or

Johannes H. Breckenfelder (Contact Author)

European Central Bank (ECB) - Financial Research ( email )

Sonnemannstrasse 20
D-60314 Frankfurt am Main


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