KOSY (KOS) Hits Floor Limit as Chairman Margin Call Cuts Stake to 33.09%

Overview

KOSY (ticker KOS, HOSE) fell to its 4,380 VND floor limit on the morning of 27 October with more than 77 million shares in sell-side surplus and no matching buyers, according to the company’s own exchange filings and local press coverage. The decline follows a chain of forced liquidations at securities firms that has pulled Chairman Nguyen Viet Cuong’s ownership down to 33.09% and left the family bloc holding roughly 45% of the shares.

Key Facts

• KOS traded at the 4,380 VND floor limit on the morning of 27 October, with over 77 million shares in floor-price sell surplus.
• Chairman Nguyen Viet Cuong was forced-sold nearly 737,000 KOS shares between 13 and 23 October, cutting his stake from 35.4% (76.64 million shares) to 33.09% (71.6 million shares).
• Between late August and 24 September, Cuong had already sold more than 4.26 million KOS shares.
• Vice Chairwoman Nguyen Thi Hang, the Chairman’s wife, holds close to 13.9 million shares (6.42%); Deputy CEO Nguyen Thi Phuong Thao, his sister, holds 3.34%.
• Hoang Thi Yen, wife of the Chairman’s brother Nguyen Trung Kien, registered to buy 8 million KOS shares between 15 October and 13 November, which would lift her holding from about 32,000 shares to 3.71% of charter capital.
• The five family members together hold approximately 45% of KOS.
• KOS attributed the decline in its 23 September filing to collateral disposal and margin lending adjustments by securities firms linked to Korean investors, and in its 23 October filing to reduced margin allocation for KOS.

What Happened

In a filing dated 23 September explaining three consecutive floor-limit sessions, KOSY said several securities companies with links to Korean investors had marked down collateral and demanded disposal of pledged assets within a short window, leaving the company insufficient time to arrange funding. The company asked lenders to extend or restructure its financial obligations to better match actual cash flow. In a follow-up filing on 23 October, KOSY cited momentum selling, weak investor sentiment and reduced margin lending against KOS as additional pressure.

KOSY maintains that its core businesses, real estate project investment and development, renewable energy, and operations, have shown no unusual disruption. The selling pressure has nonetheless spread to insiders: the Chairman, his wife and his sister have all appeared in broker notices of forced sales, with several of the wife’s and sister’s liquidation orders failing to execute because the stock was already locked at the floor. The one offsetting signal is the registered purchase by Hoang Thi Yen, which would add 8 million shares if completed by 13 November.

Market Context

KOS closed at 4,700 VND on 26 October before the 27 October floor-limit session, extending a slide that began in mid-September after a flat August. The stock trades on HOSE, where a 7% daily band and floor-price queues make forced-selling episodes self-reinforcing: once the stock locks at the floor, brokers cannot execute remaining margin calls, and the overhang builds. The episode sits against a broader Vietnamese market in which margin financing has expanded and securities firms have become quicker to de-risk small and mid-cap positions when collateral values fall.

Strategic Significance

The central question for long-term holders is whether KOSY’s funding stress is a liquidity mismatch or a solvency problem. The company’s own filings describe collateral calls arriving faster than it could raise cash, which points to a balance-sheet structure reliant on short-term margin funding against real estate and renewable energy assets. The family’s roughly 45% bloc, combined with the registered 8 million share purchase, suggests controlling shareholders are trying to signal confidence, but forced sales by the Chairman himself undercut that message. Until the margin overhang clears and the company discloses how it will restructure its obligations to the Korean-linked brokers, the share price is likely to be set by liquidation mechanics rather than by asset value.

What to Watch

• Completion or failure of Hoang Thi Yen’s registered purchase of 8 million KOS shares by the 13 November deadline.
• Further forced-sale disclosures from the Chairman, his wife or his sister filed with HOSE and the State Securities Commission.
• Any company announcement on restructuring or extending obligations to the Korean-linked securities firms.
• The next KOSY financial statement, to assess debt maturity and cash position behind the collateral calls.
• Whether securities firms restore margin lending against KOS, which would signal the liquidation cycle is ending.