Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
STOCK
As described in historical dictionaries
Patronymica Britannica (1860)
STOCK. 1. The stock of a tree seems a very unlikely origin for a family name, yet Zouch and Curzon seem analogous, as does the Fr. Racine, not to mention the English Roots. 2. Parishes, &c., in cos. Worcester, Essex, Somerset, Dorset, and York.
Origin: English
Region of origin: British Isles
Country of origin: England
Religion of origin: Christian
Language of origin: English