James
Aug 18, 2010
Uncertainty=increased volatility. At issue are canceled orders within milliseconds. Prices appear and disappear before market participants can act. This creates confusion as to what the real bid/ask is. The uncertainty causes increased volatility because longer-term traders widen their bid/asks. Sidebar: Do we really have a true market when bids/offers are canceled under 15milliseconds? Is this the most efficient way for a market to clear trades?
PRB
Aug 18, 2010
"There have also been rumblings from fund managers who are worried about the volatility created by canceled orders, which can hurt long-duration strategies." How do cancelled orders create volatility? A price is posted and then taken down if not dealt. If it happens every few microseconds or every few minutes it's not at all clear how cancelling orders creates market volatility.