The latest revised edition of the best-selling book in the stock investment field!!
With the latest investment information according to the changing investment environment
A Fundamental Stock Investment Guide for Immediate Use and Increased Returns

- How do I choose a good stock?
- When should I buy and when should I sell to make a profit?
- What are short-term and long-term investment strategies, based on the period?

How wonderful would it be if there was someone who could tell me the secrets to striking it rich in the stock market? The author, whose father, the president of a construction subcontractor, went bankrupt during the 1997 IMF financial crisis, suddenly went from being the "CEO's son to a resident of a remote village." He was so desperate to make money that he learned skills, worked part-time jobs, started his own business, stayed up all night developing programs, and even enrolled in an economics department at a prestigious university to study finance. All while hoping someone would reveal the secrets and make him a fortune.
But there was no such magical investment technique.


This book contains all the stock know-how accumulated by the author, who graduated with honors from Yonsei University's Department of Economics and holds 36 certifications including attorney, certified public accountant, real estate appraiser, securities analyst, and Certified International Investment Analyst (CIIA) while continuously giving lectures on stock investment, economics, and financial technology since college, in an easily understandable manner.
We eliminated unnecessary knowledge that was difficult and of no real use, and focused on how to find good stocks, how to time buys and sells to minimize losses and maximize profits, and how to live as a long-term, profitable stock investor.
In particular, you won't want to miss a single thing, including the in-depth financial statement lectures, chart analysis, and how to use Naver and HTS from the 'Accountant Who Is Good at Stocks'.
For complete beginners, mobile and PC stock trading methods are explained step-by-step through simulations.


If you study stocks in the order and method introduced in this book and fill your portfolio with good stocks one by one, you will at least not suffer losses from stock investment.
To succeed in stock investing, as in any other field, you must acquire certain knowledge and rules, practice in real life, and build up your skills.
Designed to lay the foundation for beginners who are just starting out in stock investing, this book is designed to be kept by your side. Whenever you get confused while investing, you can open it and refer to it. This book will serve as a reliable guide for your lifelong stock investment.

Just looking at the growth trend of the composite index, it is difficult to find an investment opportunity that is as good as stocks.
The stock market is represented by a composite index. The KOSPI composite stock price index started at 1,035.7 won in the past and recorded 3,195.5 won in April 2021. After adjustment, it fell to 2,394.59 won in March 2023, but it still remains more than double the past level.
In other words, if you bury your money in the stock market, you will see profits in the long run.
--- p.28

When you first start investing in stocks, the easiest and best way is to look around you.
There must be some products or services you use that you are attached to.
If you think the Samsung Galaxy series is really good, you can analyze Samsung Electronics and consider investing in it. If you frequently visit Shinsegae Department Store, you can search for and analyze Shinsegae-related stocks and invest in them.
Always remember that the easiest investment principle is to pay attention to your surroundings.

--- p.62

A value trap is when you buy a stock that is undervalued compared to market conditions based on financial statements, but its value does not increase even after several years.
There are stocks that have been undervalued for a lifetime, and holding them for the long term as value investments is the result of falling into the value trap.

--- p.120

In the stock market, there is a limit to how much an individual stock's price can rise or fall in a day, and that limit is called the price limit.
And the rise or fall to that range is called the upper limit and lower limit.
The price limit for our country's KOSPI market is 30%.
There is a daily upper limit, but other than that, there are no restrictions.
Experts often advise investing in stocks that are hitting their upper price limits, and if the reason for hitting the upper price limit is because the company's outlook is good, it's not a bad strategy.

--- p.138

An operational stock is a stock that suddenly increases its trading volume and causes its price to jump.
There was a major issue in 2019, and that was Jooyeon Tech.
At the time, Jooyeon Tech showed the general pattern of operation well.
What patterns did the operational stocks exhibit? Simply understanding the patterns of operational stocks can be of great help in your investment decisions.

--- p.150

If we think of a financial statement as a person, it could be thought of as “my appearance at this moment.”
What do you own right now? Your car, your house, your clothes, your smartphone, your laptop, your potential—these are all assets.
Conversely, there will also be debt.
Bank loans taken out to buy a house, money borrowed from friends, or store credit are all considered debt.
After you sell some of your assets to pay off your debts, you are left with a purely personal share.

--- p.205~206

PER is often used to estimate stock prices.
If the PER of the company is calculated and it is higher than last year's PER, it can be interpreted as overvalued, or if it is higher than the industry average PER, it can be judged as overvalued.
It is better to avoid investing in high PER stocks as much as possible, and it is better to invest in low PER stocks as they are undervalued compared to the market.
--- p.266

Let's first look at the conception pattern.
It was named ‘Imaginary’ because the candle behind it appears to be embracing the candle in front.
If the previous day's candle is larger and more powerful than the next day's candle, and has a gestational shape, you should look closely.
① This is a candle chart with a long negative candlestick showing a decline in the stock price the previous day and a short positive candlestick showing a rise the next day.
This pattern shows that a stock price that was in a downward trend can reverse into an upward trend as the previous day's candle encompasses the next day's candle.
In a downtrend, if the previous day's candle is a negative candle and the next day's candle is a positive candle, and the body is large, a more obvious upward reversal can be expected.

--- p.287

Moving averages are part of the charts provided by default in the Home Trading System HTS.
Moving average lines are also provided by various stock chart services, including Naver Finance.
It is good for beginners to use because they can determine the trading timing based on the shape of the moving average line.
One thing to keep in mind is that the moving average is only a trace of past stock prices.
This doesn't mean we can be 100% sure about the future.

--- p.303

There are many menus that can help you invest in securities companies' HTS, but not many people make good use of them.
It is especially beneficial to utilize these indicators if you are a beginner investor.
The first thing to look at is the On-Balance Volume (OBV) line. OBV stands for On-Balance Volume, and it's an indicator that predicts stock prices by analyzing trading volume, assuming that trading volume precedes stock prices. The OBV line is effective in predicting stock price movements when the market is consolidating or moving in a directionless curve.
Here, we'll look at how to read the OBV line on a securities company's HTS, what it means, and how to use it to determine trading timing.

--- p.324

The advantage of MTS is that you can invest in stocks anytime, anywhere.
You can analyze and invest in stocks in real time, so if you use it well, it can be profitable.
Securities firms are also enhancing various functions for smartphone users.
Recently, voice recognition search and investor opinion sharing features have been added, and stock education materials for beginners are also provided.

--- p.357

There is also a way to invest by looking at the relationship between the composite stock price index and stock prices.
There are two types of domestic stock indexes: KOSPI and KOSDAQ.
Each stock index can be said to represent the entire KOSPI and KOSDAQ markets, making stock indices very useful for reading stock price trends.
Some stocks move in the opposite direction of the stock index, in which case you should invest when the stock index is in a downward trend.
Conversely, for stocks that move in the same direction as the stock index, you can invest when the stock index is expected to rise.

--- p.390