HFT Stock Manipulation Caught On Tape

``It doesn't get any more blatant than this. Once again, courtesy of Nanex we present to our incompetent regulators prima facie evidence of what is outright tape painting via what is an apparent HFT algo trying either to front run an order, to test for the presence of other predatory algos, and in general to take advantage of Reg NMS only protecting displayed liquidity over non-displayed.''