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“There are certainly forms of instability that have been introduced by algorithmic trading that will increase as we put more and more faith in these algorithms. The February 2018 flash crash was instructive. The culprit was a slightly esoteric exchange-traded product that has a rebalancing mechanism inside of it. And that rebalancing mechanism ended up destroying the product on one specific day when the market moved a little bit more than the product was designed to handle. The product was required to trade a lot of instruments in response to that move. But then those trades exaggerated a small move and it became a big move, which required more rebalancing—and everything spiraled out of control.”
Anonymous algo-trader
LOGIC
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