FLEX Feed Messages

    0xB1        Time Reference 
    0x20        Time
    0x9C        FLEX Instrument Definition    
    0x9B        Complex FLEX Instrument Definition
    0xAD        Auction Notification
    0xDD        DAC Auction Notification
    0xAE        Auction Cancel
    0xAF        Auction Trade
    0x2A        Trade (long)
    0x2B        Trade (short)
    0x36        DAC Trade
    0x2C        Trade Break
    0x2E        Symbol Mapping
    0x31        Trading Status 
    0x2D        End of Session