all-or-none order

(redirected from AON Order)

All-or-None Order

The order to a broker to buy or sell a security in which the entire order must be filled or it is void. See also: FOK.

all-or-none order

A limit order in which the broker is directed to attempt to fill the entire amount of the order or, failing that, to fill none of it. See also fill-or-kill order.