History <a href=" http://www.defenceanglicans.org.au/rogaine-online-coupon-code.pptx ">do you use rogaine forever</a> No doubt, HFT increases volume by allowing transactions to be made and reversed with blinding speed. But volume and liquidity are very different. In markets dominated by HFT, new information stimulates the trading algorithms of multiple firms, which behave like herds of impala stampeding across the Serengeti, this way and that. Prices jump up and down until the pointless activity peters out. The Flash Crash was no more than an extreme example of what goes on day in and day out in today's markets.