Is there still hope for stocks after being "locked up"? The truth about disposed shares and investment opportunities

Have you ever encountered this strange stock—just soaring limit-up moments ago, then suddenly you can’t even buy it? Trading suddenly slows to a crawl, and margin financing is cut off, as if bound by a tight spell. This is the legendary Disposal Stock, colloquially called the “Prison Stock” by investors.

So the question is: Why do stocks get “locked up”? Are stocks that are locked still worth investing in? Is there really no chance to turn things around in the future?

Why Do Stocks Suddenly Face Trading Restrictions? The True Face of Disposal Stocks

When a stock exhibits abnormal trading behavior in a short period—gains over 100%, turnover rate skyrocketing, trading volume surging—the Taiwan Stock Exchange (TWSE) will pay “special attention” to it, eventually listing it as a Disposal Stock. The purpose of this mechanism is straightforward: by making trading more difficult, it cools down overheated markets and prompts investors to pause and reflect.

According to TWSE rules, abnormal stocks are usually first classified as “Attention Stocks” (no trading restrictions, just a warning). If abnormality persists, they are upgraded to “Warning Stocks,” and finally, if conditions are met, they become “Restricted Stocks” under trading control.

Based on data from December 2023, more than 10 stocks including Evergrande, Lishan, Hongguang, and Huangchang have been classified as Disposal Stocks. These stocks share common features: short-term sharp rises and falls, chaotic shareholding structures, and overly emotional market sentiment.

After Entering Disposal Stock Status, What Exactly Changes in Trading Rules?

Stocks designated as Disposal Stocks can still be bought and sold, but the rules are completely altered. Depending on the stage of disposal, restrictions vary.

First Stage Disposal:

• Buy and sell transactions are no longer executed instantly; instead, they are matched every 5 minutes.
• If the buy order exceeds 10 lots or accumulates to 30 lots, a “Circle Deposit Transaction” (full prepayment, no T+2 delayed payment like normal stocks) must be conducted.
• Margin financing and securities lending are all suspended.
• In simple terms, your capital liquidity is frozen.

Second Stage Disposal:

• If the stock remains chaotic during the first stage and triggers abnormal standards again within 30 days, it enters the second stage.
• Matching time extends to every 20 minutes.
• All transactions require circle deposit, greatly increasing trading difficulty.

These restrictions directly cause trading volume to plummet. Imagine wanting to sell but having to wait 20 minutes for each trade, with full payment required—who would want to deal with that?

Is “The More You Lock, the Bigger the Tail” True? Two Fates of Disposal Stocks

The future trajectory of Disposal Stocks is not linear; it depends on the company’s fundamentals and market sentiment.

Successful Turnaround Case: WeiFeng Electronics (6756)

In June 2021, it was classified as a Disposal Stock amid market pessimism. But this stock not only survived the first disposal, it also entered the second stage, with its price accumulating a 24% increase. Why? Because the company had solid fundamentals, shareholding was relatively stable during disposal, and institutional fund movements were transparent, turning into opportunities for savvy investors to enter.

Warning of Failure: Yangming (2609)

Also classified as a Disposal Stock around the same time due to excessive gains and high turnover. However, it didn’t last long; by late July, it was reclassified due to “large cumulative decline over 6 days,” and its stock price continued to languish.

What’s the difference? WeiFeng Electronics experienced a process of “shareholding stabilization → value discovery,” while Yangming’s “hype” label was confirmed, trapping it in a continuous decline.

There is a saying that “Disposal Stocks tend to get bigger the more they are locked,” which has some truth—some stocks that have entered disposal phase have already completed their gains, and after restrictions are lifted, liquidity and shareholding stability may trigger a new wave of gains. But this depends on the company being fundamentally sound and not facing short-selling attacks.

What’s the Difference Between Disposal Stocks, Attention Stocks, and Warning Stocks?

A stock’s “fall from grace” usually follows this path:

• Normal Stock → Attention Stock → Warning Stock → Disposal Stock

Normal Stock: No restrictions, T+2 payment, margin trading and securities lending available.

Attention Stock: Triggered abnormal standards (e.g., over 100% increase in 30 days, daily turnover rate over 10%, abnormal trading volume in last 6 days), but trading is unrestricted—just a warning.

Warning Stock: Continuous abnormal trading, upgraded from Attention Stock.

Disposal Stock: Meets the criteria for 3-5 consecutive trading days of Attention Stock or the Warning Stock conditions, enters the disposal list, and faces multiple trading restrictions.

In other words, Disposal Stock is the ultimate form of abnormality in a stock, representing the final line of defense by the Taiwan Stock Exchange.

Should You Buy Disposal Stocks? An Investment Decision Framework

This is the most practical question. The answer isn’t simply “buy” or “not buy,” but depends on how you view the stock.

Fundamental Checklist:

• What is the company’s main business? Competitive position?
• Are financial statements healthy? Are revenue, gross profit, net profit trends stable or upward?
• Are there significant operational or financial risks?

Shareholding Perspective:

During disposal, margin trading and securities lending are suspended, making institutional buying and selling data more transparent. You can observe whether institutions are accumulating or divesting, helping you decide whether to follow. This can turn into an opportunity for short-term traders to gauge intentions.

Risk Tips:

• If the stock starts to decline sharply during disposal, it may indicate fundamental issues—best to stay away.
• Confirm if the stock is at a reasonable valuation. Undervalued stocks during liquidity freeze might be opportunities; overvalued stocks pose higher risks.
• Short-term traders should note that disposal stocks cannot be day-traded, increasing transaction costs and timing risks.

Are Disposal Stocks Suitable for Long-term Holding?

It depends on four factors:

1. The company’s quality

Disposal stocks carry higher risks than regular stocks; abnormal trading often hints at underlying problems. If the company is well-managed and financially healthy, long-term holding risk is manageable; if not, it’s a gamble.

2. Market environment

In a rising market and favorable economic conditions, holding disposal stocks may be more profitable; in a downturn, they face amplified risks.

3. Investor risk tolerance

Aggressive investors comfortable with large price swings might consider holding stable-disposal stocks long-term; conservative investors should avoid.

4. Confidence in the company

If thorough research convinces you that the company is worth long-term investment, then the disposal status is less relevant. Moreover, regulatory disclosures can help you stay updated on the company’s progress.

For short-term traders: Restrictions during disposal reduce trading efficiency and increase costs, making it less suitable.

For long-term investors: Longer matching times and restrictions are less impactful, and stable shareholding may even present better entry opportunities.

Final Advice

Disposal stocks are essentially a temporary abnormal trading state; they do not inherently reflect the company’s quality. Instead of blindly chasing or avoiding, return to the core question: Is the company truly worth investing in?

If thorough research shows that a company classified as a disposal stock still has investment value, then limited liquidity isn’t a deal-breaker. Conversely, even normal stocks with poor fundamentals won’t recover just because trading is smooth.

Disposal stocks come with both opportunities and risks. The key is whether you can see through the surface and identify the real value.