noun
First Section of the Tokyo Stock Exchange
Refers to the former top-tier market of the Tokyo Stock Exchange, replaced in 2022 by the Prime Market.
かつては東証一部に上場することが企業の目標だった。
In the past, being listed on the First Section of the Tokyo Stock Exchange was a goal for companies.
Compound of 東証 (Tokyo Stock Exchange) and 一部 (first section).