Volatility and dark trading: Evidence from the Covid-19 pandemic

Volatility and dark trading: Evidence from the Covid-19 pandemic
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DOI:
10.1016/j.bar.2022.101171
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发表时间:
2022-12-22
期刊:
The British Accounting Review
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我们利用Covid-19大流行对金融市场的外生冲击和对暗交易的监管限制,研究波动性对暗池交易份额的影响。我们发现,灯火交易所的高波动性与黑池对灯火交易所的市场份额的经济重大损失有关。根据这一理论,亏损似乎是由知情的交易员在高波动性时期从光明市场转向黑暗市场造成的。交易动态对市场质量的影响是复杂的:虽然它缓和了现货市场的流动性下降,但它加剧了信息效率的丧失。
We study the effect(s) of volatility on the share of trading in dark pools by exploiting the exogenous shock of the Covid-19 pandemic on financial markets and regulatory restrictions on dark trading. We find that high levels of volatility in lit exchanges is linked to an economically significant loss of market share by dark pools to lit exchanges. In line with the theory, the loss appears to be driven by informed traders’ migration from lit to dark markets during high volatility periods. The market quality implications of the trading dynamics are mixed: while it tempers liquidity decline in the lit market, it exacerbates the loss of informational efficiency.
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