Don’t Celebrate TWSE 40,000! 90% of Retail Investors Fall into the “Don’t Sell” Trap

Taiwan stocks have broken 40,000 points, and your account has not gained a single extra dollar—that is the brutal fact I want to share with you today.

Have you ever had this experience? Watching Taiwan stocks surge from 30,000 to 40,000, your unrealized gain jumping from tens of thousands to hundreds of thousands of NT dollars. Every day you open your phone for a look, feeling great, thinking you are finally going to make it.

Then what?

Then you keep waiting. Wait for it to go higher, wait for a more perfect exit point. The result: the market starts to pull back, and your account shrinks from hundreds of thousands back to tens of thousands. You start telling yourself “it’s fine, long-term holding will bring it back.”

This is not your problem; this is the same trap that 90% of Taiwan’s retail investors fall into.

According to TWSE statistics, the average holding period for Taiwan retail investors is far shorter than you think, but right at the most critical profit-taking moment, retail investors are most likely to commit the fatal mistake of not selling.

You made money on paper, but your pocket stays empty—that is called paper wealth. Paper wealth cannot be exchanged for retirement income, for your children’s tuition, or for your mortgage payments.

This article will tell you three things:

Why Taiwan retail investors are actually losers in a bull market
What method the wealthy use to turn paper gains into real cash without panic or gambling
A complete strategy you can start implementing today, whether you are a fresh graduate just entering the workforce, an office worker in the thick of building a career, or a senior approaching retirement

Paper numbers are an illusion handed to you; money in the pocket is your real wealth.

1. Behavioral Bias: The Core Source of Retail Investor Losses

Taiwan stocks rose from 20,000 to 40,000, doubling in total. In theory, if you bought at 20,000 and sold at 40,000, your assets would double.

But according to research from the Taiwan Academy of Banking and Finance, Taiwan retail investors’ actual returns in bull markets have significantly lagged the broader market index over the long term. The reason is not poor stock-picking, but entry/exit timing behavioral bias.

What is behavioral bias? It is:

Buying when you shouldn’t
Selling when you shouldn’t
Stubbornly holding when you most need to sell

Taiwan stocks plunged from over 18,000 in July 2021 by more than 3,000 points, a drop of nearly 17%. Many people had hundreds of thousands of NT dollars in paper gains beforehand, and within a month lost all of it and ended up in the red.

This is not bad luck; this is the inevitable result of having no exit mechanism.

Have you ever asked yourself: when buying a stock or ETF, did you also think ahead about when you would sell?

I bet most people did not. Your reason for buying is usually “this is hot,” “a friend said it’s a buy,” or “the market is strong.” But your exit plan is blank.

Without a plan, you can only make decisions by emotion—emotion makes you greedy at the high, panic at the low. The end result is not selling at the high, panic-selling at the low, perfectly transferring your wealth to another group in the market.

2. First Underlying Rule: The Core Source of Retail Investor Losses Is Not Picking the Wrong Target, but Having No Exit Mechanism

According to SITCA data, the number of ETF investors in Taiwan has grown substantially in recent years; the 00900 ETF alone saw subscriptions exceeding one million investor accounts. This shows Taiwan retail investors’ investment concepts are improving, with awareness of diversification tools.

But the problem is: buy-side strategies are becoming more complete, while sell-side strategies are almost zero.

Many people buy an ETF and think they never have to sell. This view is half right—long-term holding is a sound strategy, but long-term holding does not mean never making any adjustments. Your life cycle is changing, your financial needs are changing, your risk tolerance is changing.

If you are 55 this year, with NT$3M in unrealized gains, and you are still saying “long-term hold, wait until I retire at 65”—then please answer this question:

Are you willing to gamble, and at 58 you hit a financial crisis and your NT $3 M g ain t u r n s in t o a N T$ 1M loss? Do you have time to wait for it to come back?

3. Taiwan’s Century-Old Rule: Every Black Swan Eventually Happens

There is a century-old rule in the Taiwan market that few people clearly explain:

1990 Taiwan Stock Crash: From 12,000 points to 2,738, a drop of more than 77%, taking nearly 3 years to bottom. Many people were paper millionaires back then, and ended up heavily in debt. This is not ancient history; this actually happened in Taiwan
2008 Global Financial Crisis: Taiwan stocks fell from over 9,800 to under 3,900, a drop of more than 59%, recovery took about 3.5 years
2020 COVID Pandemic: Taiwan stocks plunged from 12,000 to 8,500, a drop of nearly 30%, but this time it only took a few months to come back—because of massive government stimulus

Can you guarantee the next black swan will recover as fast as 2020? No. No one can guarantee that.

That is why an exit mechanism is not optional; it is mandatory. Especially when you are older and closer to retirement, the longest recovery cycle you can tolerate is shorter.

A 25-year-old fresh graduate, even with a 50% drop, has 40 years to wait for recovery
A 58-year-old, with a 50% drop, may not be able to wait to break even before having to use that money

The “suitability principle” promoted by Taiwan’s FSC works on this logic—in theory, financial institutions must assess your risk tolerance and investment horizon before selling you investment products. But in practice, many people buy high-risk products without seriously thinking about when they will need to use that money.

4. Four Exit Strategy Iron Rules

These four are the absolute baseline of exit strategy—no matter who you are, when the corresponding situation hits, you must execute strictly. You cannot use feel to override the rules.

Rule 1: Your stock position’s share of total assets cannot exceed the maximum loss you can tolerate. In plain language: if your stock account went to zero, can your life continue to operate normally for at least six months? If not, your stock position is too heavy. A 55-year-old preparing for retirement, with six months of living expenses plus potential medical costs likely needing NT$500,000+ in emergency reserve, must keep the stock position more conservative.

Rule 2: Any money you will definitely need within five years must not be in the stock market. Your child starts college in three years, with NT $2 M in t u i t i o n . T ha tN T$ 2M cannot all sit in Taiwan stocks, because you do not have time to wait for it to recover from a major drop.

Rule 3: When your paper gains exceed your originally set target return, you must trigger the batch exit mechanism. No matter how strong the market looks—if you originally set your Taiwan stock ETF target as 50% gain over 5 years, and you hit it in two, your reaction should not be to greedily wait for more, but to start executing the plan and lock in gains in batches. Your target return is set based on your own financial needs, not determined by the market—hit the target and execute; do not adjust for market sentiment.

Rule 4: When your age plus your stock position share exceeds 120, you need to seriously re-evaluate your allocation. For example, you are 60 this year with 70% in stocks; 60 plus 70 equals 130, exceeding 120, meaning the risk you are taking may exceed what is appropriate for your age. At that point, you should consider gradually reducing the stock share and increasing fixed-income or cash.

4 exit strategy iron rules

5. Four Practical Action Steps

Step 1: Open your brokerage app (any of Fubon, Cathay, Yuanta, or others) and list every stock or ETF you hold. Calculate the realized P&L for each position, and then calculate your stock portfolio’s share of your total assets (total assets including deposits, stocks, and net real estate value combined). You must know this number today. No more investing with your eyes closed.

Step 2: Based on your age and financial needs, set your target stock share:

20 to 35-year-old fresh graduate or young office worker: target share can be 60% to 80%, but only with at least six months of emergency reserve in a fixed deposit or savings account
35 to 50 middle-aged group: target share recommended 50% to 70%, and ensure that money needed within five years has been moved out of stocks
Over 50 approaching retirement: target share should gradually drop below 40%, actively reducing stock share by 10% every five years

Step 3: Set your rebalancing condition, with two options:

Time-triggered: rebalance once a year in January or July, adjusting positions that have drifted from target by more than 5%
Magnitude-triggered: when any position drifts from target by more than 10%, adjust immediately

Both work. The key is to pick one, then execute strictly, without modifying the rules for market sentiment.

Step 4: Write your rebalancing plan down, save it in your phone’s notes, or write it on paper somewhere you will see every day. Include your target stock share, your trigger condition, your emergency reserve amount, and your list of money needed within five years.

This list is your investment constitution. When the market’s surge makes you greedy, or its plunge makes you panic, one glance at this list brings you back to rationality.

6. Two Taiwan-Specific Traps

Trap 1: The High-Dividend ETF Ex-Dividend Trap

Many Taiwanese investors love chasing high-distribution ETFs, feeling great about receiving dividends every year. But according to the TWSE ex-dividend mechanism, on the ex-dividend date, the stock price drops directly by the dividend amount—this is the pre-fill price correction.

If you bought before ex-dividend, on the ex-dividend date your paper loss equals the dividend amount you received, so you have not actually made money unless the price later fully fills the dividend.

Public data from Taiwan’s FSC shows that not every ETF fully fills its dividend every year. Therefore, the correct logic for chasing high-distribution ETFs is not to chase the dividend, but to evaluate the ETF’s long-term total return—the sum of price appreciation plus dividends is your real profit.

Looking only at the distribution rate and not the fill rate is the most common trap for Taiwanese retail investors losing money on high-dividend ETFs.

Trap 2: The Concentration Risk in Taiwan Broad-Market ETF Constituents

Many people assume buying a Taiwan Weighted Index ETF means buying the entire Taiwan market, with highly diversified risk.

But according to TWSE public data, the top constituents of the Taiwan Weighted Index are heavily concentrated in the semiconductor sector, with TSMC alone long accounting for over 30% of the index weight.

This means when you buy a Taiwan stock ETF, over 30% of your money is concentrated on a single company, TSMC.

This is not saying TSMC is bad. It means you need to be clear that your Taiwan stock ETF is not truly diversified across the whole market; it has heavy industry concentration risk. If you want a more genuinely diversified allocation, consider pairing it with ETFs tracking different markets or different industries.

The key is to first understand each instrument’s constituent structure, rather than assuming that because the name says “diversified,” it actually is.

Taiwan broad-market ETF concentration risk

7. Emergency Plan for Extreme Conditions

If Taiwan stocks plunge more than 30% in a short period, what should you do?

Do not sell in panic. According to Taiwan stock market historical data, after every 30%+ correction, Taiwan stocks have returned to the prior high over different time horizons. But the precondition is that you hold a diversified broad-market ETF, not a single stock—if you hold a single company’s stock, that company may never come back, which is a fundamentally different situation
If you have already locked in partial gains before the drop per plan, with cash in hand, you can consider staggering in additional purchases at this point. But the additional capital must only be your idle capital, not your emergency reserve, and never borrowed money
If you are over 50 and will need this money within 3 to 5 years, with a drop exceeding 20%, you should seriously evaluate whether to cut losses and exit, rather than keep waiting to break even—for you, the time cost is real, and you do not have unlimited time to wait for the market to come back

8. The Most Important Decision Framework

Before buying any investment target, write down three things:

What is your target return?
What is your maximum acceptable loss?
Under what conditions will you sell?

If you cannot answer these three questions, don’t buy yet. If you can, you have already beaten 90% of retail investors.

The real winner is not the person who guesses the top, but the one with discipline and rules who can protect gains across different market conditions. That is the real gap between the wealthy and retail investors.

Taiwan stocks hitting 40,000 is worth celebrating, but if you have no exit mechanism, 40,000 is just a number you saw but never actually made money from.

Build your own set of rules, so the market’s ups and downs no longer drive your emotions, so your wealth decisions always remain in your own hands.

All content in this article is for financial education only and does not constitute any investment advice or recommendation or solicitation for any financial product. All investments carry risk, including possible loss of principal. Past market performance is not a guarantee of future results. Taiwan stock market historical data is for reference only, with no assurance of similar future performance. Each person’s financial situation, risk tolerance, and investment goals differ. Before making any investment decision, please carefully assess the risks and consult a Taiwan-licensed financial advisor and tax professional. All information in this article is based on public data from Taiwan’s FSC, TWSE, SITCA, and other official bodies; in case of any discrepancy with the latest announcements, the latest official announcement prevails.

Disclaimer: This article is a sharing of investment and financial concepts and a compilation of information, and does not constitute any specific investment, tax, or legal advice. Markets carry risk; invest with caution. Please make independent judgments based on your own risk tolerance and consult professional advisors.

Don't Celebrate TWSE 40,000! 90% of Retail Investors Fall into the "Don't Sell" Trap