Only comment, ban locked markets.
Via Tabb Forum:
Via Tabb Forum:
"High-frequency trading continues to stir controversy, and exchange order
types are at the center of the debate. Have undocumented exchange order
types favored HFTs, or do market participants need to work harder to
understand exchanges' order matching practices? TABB director of
research Adam Sussman, who recently particpated in a panel discussion on
HFT and order types at the GAIM conference in Florida, says regulators
still don't know what to do about HFT and, surprisingly, even anti-HFT
market participants don't want them to dumb down the markets."