> (in fact, it extracts that value from non-HFT traders, so even those are shafted here). in return HFT provides liquidity (and by that smaller spreads) to the

> (in fact, it extracts that value from non-HFT traders, so even those are shafted here). in return HFT provides liquidity (and by that smaller spreads) to the market, I would think. If you ever bought or sold a stock with a market order, you profited from the work the HFT is doing.