Why do you always buy right before the drop and sell right before the rally? Why do retail traders refuse to buy when stocks fall, then chase them as they climb, only to enter right before the reversal?
It is not bad luck. It is the inevitable outcome of human nature—fear locks you out of opportunity, and anxiety pushes you straight into the trap. 90 percent of retail losses happen exactly this way.
Real top traders never blindly catch falling knives. They only take trades that have logic, evidence, and certainty. Up or down is the result of the market. It is never a reason to buy.
Today I share nine field-tested rules that masters use privately. They are all plain language, but very few people can actually follow them day after day. In investing, understanding is easy, execution is the hardest part.
1. Fewer Holdings Is the Steady-Win Path for Ordinary People
Many beginners share a fatal misconception: the more stocks they hold, the more diversified their risk. Loading up on ten or twenty names looks like broad coverage, but in reality you have lost control.
We are all amateur traders with day jobs. Where do we find the energy to track the dynamics, sector policy, financial reports, and institutional flows of twenty companies at once? It is like trying to clear twenty game levels at the same time—you cannot finish them all, and you will eventually wipe out on every one.
This is not risk diversification. This is letting losses run unchecked.
It gets worse: a multi-stock portfolio heavily dilutes your gains. Walk through the math with me: NT$1,000,000 split across 20 names means each position is only 5 percent of capital. Even if one of them hits the daily limit-up, your total net asset only rises 0.5 percent. After spending huge amounts of time selecting and watching stocks, your return is almost nothing.
The most reasonable approach for a beginner is to hold only 3 stocks. Once your trading is smooth and your mindset is steady, you can scale up to 5 at most. Beyond that, ordinary people simply cannot handle it.
What if all three stocks fall together? Easy—execute your stop loss strictly and rotate into better targets on time. We are managing our exposure, not clinging to one stock.

2. Four Lines a Day: Journaling Is the Fastest Path to Leveling Up
Many people trade for three to five years and are still worse than beginners. The core reason is just one thing: they never review their trades.
Let me teach you an ultra-simple journaling method. After every trade, write down only four things:
- The core logic behind your buy decision
- Your pre-set stop-loss level, executed without hesitation
- A short note on what triggered the day’s price move
- The clear, real reason you eventually sold
No long essays needed. One or two sentences are enough. Simple records are what you can sustain long-term.
A simple example: new energy sector policy is positive → buy a leading solar stock → preset a 10 percent drawdown as the hard stop, execute strictly → small intraday pullback, the trigger is broad market weakness, but the sector logic is unchanged → keep holding → be patient → later the sector subsidy regime rolls back and the logic breaks → exit decisively.
Trading is like leveling up in a game, and the trade journal is your XP pack. Trading without reviewing is wasting time going in circles.
Journaling also forces you to be more rational: any order where you cannot write down the buy logic is an order you should never place. This filters out the vast majority of impulsive trades.
3. Avoid Mid-Session Emotional Sessions and Herd Mentality
Many people love to place orders in the first minute the market opens, not realizing the first hour is the biggest emotional trap.
In A-shares, the hour after the 9:30 AM open sees the most extreme volatility. Big gap up, and everyone is afraid of missing out and chases. Big gap down, and everyone panics and dumps out of fear of being trapped. Trading in this window is essentially emotional, with no logic behind it—pure herd behavior.
It is like the morning rush in a shopping district, with everyone crowding and panicking blindly. Calm observation is how you avoid the stampede.
Besides, be cautious in the last 30 minutes of the session—afternoon capital fights are intense, and price moves are amplified.
The most rational window for trading is after 10 AM, when market sentiment has calmed down and price action reverts to fundamentals.
Do not put faith in so-called “perfect entry times.” Investing is not fortune telling. It does not rely on timing; it relies on logic. What you buy and why you buy it matter far more than when you buy.
4. Long-Term Investing Is Absolutely Not Equal to Clinging to a Loser
This is the most deeply rooted misconception among retail traders.
Too many people think long-term investing means buy and never let go. Trapped? Just lie flat. Losing? Just tough it out. Down 30 percent, they call it “long-term holding.” Down 50 percent, they are still comforting themselves. This is not investing. This is self-torture and passive loss.
True long-term investing means: staying in the market over the long run, not clinging to one stock that is sliding downhill.
The core prerequisite for investing is making sure you are not eliminated. A single devastating loss can take you straight off the table—capital halved, mindset shattered, and you quit the market entirely.
So before you take any position, you must preset your stop loss and exit conditions:
- Price breaks the stop line → exit immediately
- The buy logic fails → exit immediately
- No hesitation, nowishful thinking, no excuses to delay
Many people misunderstand stop loss. They think it means accepting a real loss. In reality, a stop loss is the lifeline that preserves your capital. If you cut at minus 10 percent, you still have 90 percent of your capital left. If you do not cut, a small loss drags into a deep trap, and recovering from a 50 percent drawdown requires a 100 percent gain—which often takes years.
Do not let survivorship bias blind you. Everyone has heard the legendary story of a stock going ten-baggers in a decade, but nobody mentions the countless cases of stocks losing most of their value over the same time. Learning to take the stop loss is the foundation of long-term profit.
5. Set Your Loss Limit Before Sizing Your Capital
Most people get the order of investing wrong from the start. Ordinary traders invest whatever spare cash they have. Pros do the opposite: they first calculate how much they can afford to lose.
A plain-language framework:
- If losing NT$100,000 would not disrupt your normal life, would not cause anxiety, would not break your sleep or your routine, then your reasonable investable capital is NT$1,000,000
- If with a standard 10 percent stop you can only tolerate NT$50,000 of loss, then only deploy NT$500,000 of capital
- Never over-deploy your capital
Knowing your own risk tolerance cures your trading anxiety. When there is small volatility, you will not panic, because you know the loss is within your tolerance band.
The opposite is going all-in with your life savings. A few percentage points of drawdown then equals months of living expenses evaporating—fear will take over rational judgment.
6. Beginners Must Never Touch Any Leverage Instrument
Futures, options, leveraged ETFs—all of them are beginner landmines.
Many people think leverage lets you do more with less and get rich fast. But here is a brutal market truth: leverage amplifies returns and amplifies risk even more. The destructive force of losses far exceeds the upside of gains.
With 2x leverage, if a stock drops 10 percent, you are down 20 percent. Markets oscillate, and leveraged decay continuously eats into your capital. A few small swings, and your principal shrinks dramatically.
Worse, leverage is highly addictive. The thrill of profits lights up the reward circuit in your brain and makes you unable to stop trading. Frequency climbs, fees and slippage accumulate, and losses compound. Slowly you go from rational investor to impulsive gambler.
Today’s trading interfaces are simple and convenient, which sounds like a benefit, but in reality lowers the barrier to impulsive trading. Real, reliable investing is boring and steady. If you find trading stimulating and addictive, your risk is already over the line.
Leverage belongs to professional institutions for hedging and arbitrage. Ordinary office workers touching leverage are very likely to lose everything.
7. Starting Small Is Far More Reliable Than Waiting for Big Money
The most common retail excuse I hear is: “Trading with a few tens of thousands is useless. Even a double does not earn much. I will wait until I save NT$1,000,000, then enter and make a lot at once.”
That sounds reasonable, but it is extremely dangerous. The most precious thing in investing is never capital—it is time and experience.
Let me show you the math:
- NT$100,000 compounded at 13 percent annually for 10 years → over NT$1.7 million
- Adding NT$100,000 a year for 30 years → on track for tens of millions
- You do not need to catch the next hot stock, you do not need to gamble on a moonshot—compounding is the ordinary person’s miracle
Small capital is also the best training ground for beginners. Losing small money does not hurt your heart, your mindset stays calm, and with a steady mindset your judgment naturally becomes more accurate and reliable.
Look at the opposite path: people who save for years and then go all-in once. The moment they hit a drawdown, the large loss shatters their mindset, and they panic out, saying goodbye to the market forever, leaving in regret.
People who start small can stay in the market longer and walk further. Whether it is NT$30,000 or NT$50,000, starting today is the best time. In investing, the act of starting matters far more than the amount.

8. The Beginner’s Ultra-Simple Portfolio Template
Many beginners do not know how to allocate their funds. Here is a zero-barrier, ready-to-deploy template—take NT$500,000 of capital as an example, and split it into three buckets:
Bucket 1: 40 percent in a broad-market ETF
For example, a 300 ETF or 50 ETF. This is your core position, tracking the broad market. It is stable and value-preserving, and protects you from single-stock blow-ups.
Bucket 2: 20 percent in a mid-cap or growth ETF
Mid-caps have more room to grow, and this layer adds a nice excess-return kicker to the portfolio.
Bucket 3: 40 percent in one carefully selected stock
Key point: pick only one, never more.
Why only one? The reason is efficient journaling. When you hold multiple stocks that rise and fall together, you cannot learn anything—you cannot tell whether your stock-picking logic is sound.
A single position lets you clearly diagnose each move: profits give you a lesson to consolidate; losses reveal your blind spots. It is like reviewing homework—you can only fix your errors one problem at a time. Working through mixed problems in bulk will never let you find your real mistakes.
Investing is a lifelong practice. Early growth is more important than early profits.
9. Do Not Worship High Dividend Yields—The Trap Behind the “Safe” Wrapper
Many conservative investors love high-dividend names. They think steady dividends mean worry-free, near-zero risk. This is one of the most deceptive traps in investing.
Many stocks have high dividend yields not because the company is strong, but simply because the share price has been falling, inflating the yield. You think you are getting a stable cash flow, but in reality your principal is shrinking, and the tiny dividend cannot plug the hole of capital loss.
And in A-shares, very few companies deliver stable high dividends over the long term. Most companies’ payouts fluctuate wildly—high one year, low the next. The so-called “stable income” is anything but.
For friends chasing stability, remember the core principle: position sizing matters more than picking the seemingly safe name. Do not throw all your capital into stock-market speculation. Put a small portion into index funds, and keep the bulk of your capital in safer channels. Reducing risk exposure is what truly reliable risk management looks like.
A few final honest words:
Investing is never about lucky breakouts. It is about self-discipline and leveling up. All stable profits come from knowledge, discipline, and experience. There is no need to rush for quick wins, and there is no point fantasizing about flipping your account overnight.
Start by controlling your number of holdings. Start by journaling every trade. Start by avoiding emotional trading. Start by executing stop losses strictly. Every small act of consistency will slowly make you stronger.
The biggest risk in investing is never a trading loss—it is “holding cash and doing nothing,” while inflation quietly eats your purchasing power. If you start today with courage, time will reward your effort.
The stock market never rewards talent for predicting price action. It rewards the self-discipline to override human nature and stick to the rules. Hold the rhythm, hold the bottom line, and long-term profit will follow.
Disclaimer: This article reflects the author’s personal experience and market observations, and does not constitute any investment advice. Investing carries risk. Any decisions should be based on your own financial situation, risk tolerance, and independent judgment. The author bears no responsibility for any investment gains or losses.
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