High-frequency trading is a stabilizing force in the marketplace, according to the head of market structure for the derivatives exchange Eurex, Randolf Roth. "HFT firms contribute not only to liquidity but also help in severe situations to stabilize the market by continuing to run their algorithms the way they did before," Roth said. He also highlighted that data doesn't support the idea that HFT reinforces downward spirals in the marketplace.

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