Tech Stock Turmoil: Retail Margin Balances in Korea, Taiwan, and China Drop Over 10%
Alina Collins
Retail margin balances in Korea, Taiwan and mainland China have each dropped more than 10% since late June, while Korean leveraged ETFs tied to Samsung and SK Hynix shrank from $11 billion to $4.1 billion in two weeks — an AI-sentiment reversal is force-flushing Asia's most crowded semiconductor leverage.
Three markets deleveraging at once — what triggered it?
Margin balances in mainland China and Korea have each fallen more than 10% since late June. Taiwan's margin balance has declined for six straight sessions, hitting its lowest since May.
This means → the deleveraging is synchronized, not isolated. The common trigger is a sudden reversal in AI and semiconductor sentiment rippling through all three retail-heavy markets.
In plain terms = retail investors borrowed to ride the tech rally; now that tech stocks are falling, the borrowed money amplifies their losses, forcing simultaneous sell-offs across all three markets.
Why is Korea's leverage flush the most violent?
Korean leveraged ETFs linked to Samsung Electronics and SK Hynix saw assets plunge from over $11 billion on June 25 to $4.1 billion by Thursday — a drawdown of more than 60% in two weeks.
This means → net fund flows have turned negative, and the drop tracks the two underlying stocks almost perfectly. The problem is not the ETF structure itself — it is the extreme retail concentration in leveraged products.
This reflects how heavily concentrated Korean and Taiwanese markets are in semiconductor names. Layered on top of extreme leverage, that concentration makes them the first and hardest hit when sentiment turns.
Forced liquidation vs. fundamental deterioration — what is the difference?
Ivan Feinseth, CIO of Tigress Financial Partners, called the flush "a healthy and necessary market reset" — provided it is driven by forced liquidation, not worsening fundamentals.
In plain terms = if the companies themselves are fine and only leveraged speculators are being forced out, the selling pressure is a one-time event — once they are done, it stops.
He argued that once speculative excess is purged, the market moves toward "a cleaner, more constructive bottoming environment."
Leverage is gone — does that mean the market can stabilize?
Earlier this year, Korean and Taiwanese equities ranked among the world's best-performing markets. Rapid margin accumulation was a key driver of those gains.
This means → leverage acted as an accelerator on the way up and an amplifier on the way down — the same pool of capital played a decisive role in both directions.
Whether the market can form a genuine floor after the leverage flush remains the most critical question now: if fundamentals hold, the bottom may not be far off; if they deteriorate, the picture changes entirely.
Content is for reference only, not financial advice.