約定

• Reading: やくじょう
• Romaji: yakujō
• Kanji breakdown: 約 (yaku) — promise, agreement; 定 (jō) — determination, fixing
• Pronunciation: /jakɯdʑoː/

Meaning

Contract; agreement; an executed commitment — in securities, a confirmed and matched trade.

Used in formal legal and financial contexts. In securities trading, 約定 specifically refers to a trade that has been executed — a buy or sell order that has been matched and confirmed on the exchange. 約定価格 (contract price) and 約定日 (trade execution date) are standard terms in brokerage and financial reporting, distinct from 注文 (order, which may not yet be filled).

Examples

1. 売買約定が成立した翌日に、決済が行われる。 Settlement takes place the day after a buy or sell transaction is executed.
2. 契約書には双方が合意した約定事項が明記されている。 The contract clearly specifies the agreed terms to which both parties have consented.
3. 注文は約定するまで市場に残り続ける。 An order remains on the market until it is executed.

Usage Guide

Context: securities, legal, finance, contracts

Tone: neutral

Origin & History

Compound of 約 (promise, agreement — from 約す, to promise) and 定 (determine, fix). Together they convey a firmly established agreement or commitment. The term has roots in classical legal and commercial usage in East Asia.

Cultural Context

Era: Modern

Generation: Adults

Social background: Business/Legal