noun
sumo management stock; toshiyori stock
A tradable share in the Japan Sumo Association that entitles the holder to a toshiyori (elder) title and participation in sumo management. There are 105 such titled trusteeships.
年寄株を取得して、相撲協会の運営に参加する。
He acquires a toshiyori stock and participates in the management of the Sumo Association.
年寄株は、引退した力士が取得することが多い。
Toshiyori stocks are often acquired by retired wrestlers.