OB Order Book Flows
On connection, OpenYield streams one IOI message per resting order or quote, then continues streaming New, Replace, and Cancel IOIs as the order book changes. There is no separate snapshot message.
IOIQltyInd indicates whether a resting order belongs to you:
| Meaning | IOIQltyInd (25) | Description |
|---|---|---|
| Low | 25=L | Your own order or quote. |
| Medium | 25=M | Another account (different Client ID or Investor ID) on your connection. |
| High | 25=H | Unrelated — safe to trade against. |
OpenYield will never fill your order against your own orders or those sharing the same Client ID or Investor ID.