大だい納のう会かい

noun

last trading day of the year; year-end closing session

Specifically refers to the final trading session of the calendar year on the Tokyo Stock Exchange, often accompanied by a closing ceremony.

• 大だい納のう会かいでは、一いち年ねんの取とり引ひきを締しめくくる式しき典てんが行おこなわれる。

  At the year-end closing session, a ceremony is held to wrap up the year's trading.

• 今年ことしの大だい納のう会かいは12月がつ30日にちです。

  This year's last trading day is December 30th.