See an XLF black box get sent to the ETF pit (courtesy of optionmonstertv). How does all of this stuff work? Related: XLF Sets World Record In Quote Stuffing With 23.3 Quotes Per Millisecond.
Previous video @RMBrenna did. From what I remember, there was XLF quote stuffing and XLF calls were active in size before the breakout above $15. Someone made some fast money in the Nov 2010 $15 Call..