fall below a key level; break below a round number
Used in financial contexts when a stock price, index, or other numeric value drops below a psychologically significant round number (e.g., 10,000 yen). Often contrasted with 台替わり (moving to a different range).
See also: 台
Antonyms: 台替わり (だいがわり)
The Nikkei average briefly fell below the 30,000 yen level.
This stock is on the verge of breaking below the 1,000 yen level.
rise above a certain level; breakout above a threshold
Compound of 台 (だい, 'level' or 'range') and 割れ (われ, 'breaking'), from the verb 割れる (われる, 'to break'). The term is used in financial markets to describe a price breaking below a round-number threshold.