空売り規制 | 売買の規制 | 日本取引所グループ

This page explains short selling regulations by Japan Exchange Group. Short selling involves selling securities not owned or borrowed from shareholders. Regulations include notification requirements, price restrictions, and balance reporting. Price restrictions are triggered when stock prices fall 10% or more from the reference price, using a "trigger system" that applies until the next trading day. Higher prices are prohibited during price increases and equal or lower prices during declines. Reporting is required when short selling positions reach 0.2% of issued shares, and positions of 0.5% or higher are publicly disclosed.