| Tag | Field Name | Abbr Name | Data Type | Union Datatype | Description | Pedigree |
|---|---|---|---|---|---|---|
| 1820 | RelatedLowPrice | ReltdLowPx | Price | Lower boundary for the price of a related entity, e.g. price of the underlying instrument in an Underlying Price Contingency (UPC) order. | Added EP131 |
|