A syndicated stallion is owned by a small number of shareholders, each holding a nomination that entitles the shareholder to a covering each season. Nominations are transferable. Transfers move real value between parties under a document most compliance teams will not open, and which does not appear in any of the registers they are trained to search.
A private bank reviewing a client whose declared equine interests are limited to a few racehorses will sometimes find, through the stud books published by the breeding authorities, that the client also holds a nomination in a stallion whose covering fee runs to substantial figures. The nomination is an asset of consequence, and it is held under paperwork the stud book records openly.
The stud books are maintained by the national breeding authorities and are published annually. Nomination transfers are recorded against the shareholder of record for each season. The covering fee is public. Combined with the auction record for horses sired by the stallion, the nomination has a market value that can be estimated with reasonable confidence at any point in the season.
A nomination is an asset with a market, a fee, and a filing. A reader who treats it as an eccentricity is missing a holding often larger than the racehorse portfolio it sits alongside.