“…Chordia et al (2018), on the other hand, show that S&P 500 exchange-traded fund and E-mini S&P 500 futures contract prices react to macroeconomic surprise news in 2008-2014 within the first five milliseconds where trading intensity rises by more than 100-fold. Reaching beyond the scope of this study, HFT related topics include but not limited to its impacts on market quality, i.e., on liquidity (Hasbrouck and Saar, 2013;Brogaard et al, 2014;Brogaard et al, 2017) and on volatility (Brogaard, 2010;Zhang, 2010;Chaboud et al, 2014), HFT effects on price discovery (Carrion, 2013;Menkveld, 2013;Conrad et al, 2015), HFT through market downturns and crashes (Kirilenko et al, 2017;Brogaard et al, 2017; "high frequency trading" "algorithmic trading" "stock exchange" "stock market" Madhavan, 2012;McInish et al, 2014), HFT impacts on other participants: crowding out effect (Malinova et al, 2013;Jones, 2013;Hoffmann, 2014), adverse selection effect (Cartea and Penalva, 2012;Biais et al, 2015;Egginton et al, 2016), welfare effects (Boehmer et al, 2015;Stiglitz, 2014;Budish et al, 2015), vast HFT investments (Menkveld, 2013;Biais et al, 2015;Budish et al, 2015), HFT competition (Baron et al, 2019;Brogaard and Garriott, 2019), HFT profits (Malinova et al, 2013;Scholtus et al, 2014).…”