# Kosy Joint Stock Company stock devaluation > Situation record from CLSTR: https://clstr.news/situations/kosy-joint-stock-company-stock-devaluation > Updated: 2026-10-12T00:05:17.000Z. Sources: 8. Developments: 2. Kosy Joint Stock Company (KOS) has faced a severe and continuous decline in its stock value on the Ho Chi Minh City Stock Exchange. By early October 2026, the stock had hit its floor price for 14 consecutive sessions, losing approximately 65% of its value in three weeks. During this period, Dai Viet Securities Joint Stock Company reported that attempts to conduct forced liquidations of shares belonging to Chairman Nguyen Viet Cuong and Leo Regulus Investment Joint Stock Company were unsuccessful due to low liquidity and selling pressure. By October 12, 2026, the stock decline extended to 18 consecutive sessions, causing the share price to drop to 9,630 VND. This marked the first time the stock fell below its 10,000 VND par value since its 2017 listing. The volatility has resulted in a loss of over 5,000 billion VND in market capitalization since the start of the year, bringing the company’s total value below 2,100 billion VND. While the company attributed the volatility to general market trends and margin lending adjustments by securities firms, significant shareholder movements have been noted. Following previous sales by the Chairman and forced liquidations of related entities, Hoang Thi Yen, the Chairman’s sister-in-law, registered to purchase 8 million shares in mid-October 2026. ## Timeline ### 2026-10-12: Vietnam stock market sees Kosy crash and structural reorganization Vietnam's market sees Kosy lose 5,000 billion VND in value, HDS prepares for IPO with a former German official, and HNX stocks are set to transfer to HOSE by late 2026. 7 sources. https://clstr.news/cluster/kosy-joint-stock-company-stock-falls-below-par-value-after-18-session-decline ### 2026-10-08: Kosy Chairman faces failed forced stock liquidations Dai Viet Securities failed to complete forced liquidations of Kosy Joint Stock Company Chairman Nguyen Viet Cuong's KOS shares amid a 14-session price floor streak and a 65% value loss. 3 sources. https://clstr.news/cluster/kosy-chairman-faces-failed-forced-stock-liquidations --- Cite as: Kosy Joint Stock Company stock devaluation. CLSTR, https://clstr.news/situations/kosy-joint-stock-company-stock-devaluation