高频交易员以惊人的速度运用自动化策略来利用金融工具的低效定价。

HFT USES automated strategies to capitalise on inefficient pricing of financial instruments at blinding speed.

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一些投资者将ETFs作为表达市场总体看法的快速通道，而高频交易者则将ETFs当作复杂的套利策略的一部分。

Some investors use ETFs as a quick way of expressing their overall view on the market, while high-frequency traders use the funds as part of their complex arbitrage strategies.

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