Comment The other half of HFT (Score 1) 443
Is they bring near unlimited liquidity to the market. They also don't move valuation, and they only compete against themselves to make the market more liquid thus reducing the actual profits they are "siphoning off the top". It's a race to the bottom alright, the bottom of HFT profits. Or do you'll believe that if they achieve another few order of magnitude of frequency, suddenly they'll drain the entire market of all it's value in a single day?