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Politics : The Trump Presidency -- Ignore unavailable to you. Want to Upgrade?

To: combjelly who wrote (33759)	9/8/2017 2:57:39 PM
From: TimF	Respond to of 363081

Theres evidence that it helps others ---- The major benefit of HFT is it has improved market liquidity and removed bid-ask spreads that previously would have been too small. This was tested by adding fees on HFT, and as a result, bid-ask spreads increased. One study assessed how Canadian bid-ask spreads changed when the government introduced fees on HFT, and it was found that bid-ask spreads increased by 9%. investopedia.com Every time I've posted that I've agreed it wasn't definitive, but at the very least HFT does not clearly cause significant net harm.