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.
| Code | Meaning | 
|---|---|
| 0 | Stay on offerside | 
| 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 | 
| 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 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 |