Instructions for order handling on exchange trading floor. If more than one instruction is applicable to an order, this field can contain multiple instructions separated by space. Valid values: 1 = Not held 2 = Work 3 = Go along 4 = Over the day 5 = Held 6 = Participate don't initiate 7 = Strict scale 8 = Try to scale 9 = Stay on bidside 0 = Stay on offerside A = No cross (cross is forbidden) B = OK to cross C = Call first D = Percent of volume “(indicates that the sender does not want to be all of the volume on the floor vs. a specific percentage)” E = Do not increase - DNI F = Do not reduce - DNR G = All or none - AON I = Institutions only L = Last peg (last sale) M = Mid-price peg (midprice of inside quote) N = Non-negotiable O = Opening peg P = Market peg R = Primary peg (primary market - buy at bid/sell at offer) S = Suspend T = Fixed Peg to Local best bid or offer at time of order U = Customer Display Instruction (Rule11Ac1-1/4) V = Netting (for Forex) W = Peg to VWAP