1911 Encyclopædia Britannica/Stag

STAG (O. Eng. stagga, a Norse word, cf. Icel. steggr, steggi, a male animal, cf. Steggander, a drake; it is usually referred to stigan, to climb, to mount, but this is doubtful), the common name of the male of many species of the deer tribe, but usually confined to the male of the red deer (Cervus elaphus), “buck” being used in other cases, as of the fallow-deer (see Deer and Pecora). In Stock Exchange slang the term is used of an operator who applies for a portion of a new security being issued, not with a view to holding it, but with the intention of immediate realization, at a profit if possible.