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17#
发表于 2013-4-22 11:38
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I never said that “without HFT we’d go back to the $100 with spreads at 25c”. I was merely pointing out that the bygone days you yearn for were far worse than what we have now, particularly for retail investors. A lot of the innovation we’ve had has been beneficial for retail investors, including IMO, HFT.
HFT wouldn’t exist unless there was already a market inefficiency. HFT in essence is providing small amounts of liquidity for certain names, on certain venues, at certain times. Retail investors, while not getting perfect execution, are getting better execution, partially due to HFT, than ten years ago. (Very few even paid attention to execution at all ten years ago.)
Perhaps your lolrage is better directed toward the fragmentation of the markets than HFT? The reason SS flash crashes happen is because liquidity is fragmented across dozens of trading venues, many of which are trading the exact same/fungible things, but the price on one of those venues temporarily plummets/rips because someone routed an outsized amount of flow to that venue relative to its liquidity. |
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