The investment expert returns, even more evolved.
The Path to Economic Freedom Guided by Sookhyang

How can an ordinary office worker retire rich through investing?
Simple yet safe value investing is the answer!

The name 'Sukhyang' is not unfamiliar to those who frequently visit stock investment cafes.
He has been sharing his investment portfolio and book reviews in stock-related communities for a long time, and his friendly yet persuasive writing has become a hot topic among members.
《Warren Buffett Next Door, Sook-hyang's Stock Investment Story》 is a book that meticulously organizes Sook-hyang's unique investment principles that have enabled her to beat the market with high returns, along with practical investment cases that have been revealed so far.


He first disclosed the investment performance and returns of the past period through the special edition preface.
Sukhyang's investment funds have shown a return of 88.6% (annual compound return of 13.5%) over the past five years, and 1898.8% (annual compound return of 17.1%) over the 19 years from 2006 to 2024.
Assuming the initial investment was 100 million won, it has grown to 1.999 billion won.
Considering that this period was marked by extreme crises, including the global financial crisis and the COVID-19 pandemic, his value investing shines even brighter.
In particular, the fund (Sukhyang) that operates with an investment principal of 500 million won and an 18-year operating period from October 1, 2021 to September 30, 2039, had a return of 99.5%, and the principal of 500 million won increased to 998 million won as of the end of September 2025.
It can be said that he personally demonstrated the true value of value investing.


Value investing is an investment method proven by investment legends such as Benjamin Graham and Warren Buffett, and is based on calculating intrinsic value (the fundamental value of a company).
The author states that the ultimate purpose of investing is to "prepare for the time when one must live off capital income after labor income ceases, and to create a life of freedom accompanied by economic freedom," and that this is possible through stock investment based on value investing.
In particular, Sook-hyang wanted to emphasize through her book that even ordinary office workers and self-employed individuals can create satisfactory returns by focusing on their main job and utilizing a short period of time without having to spend a lot of time investing in stocks.
According to the author, this is also possible through value investing.

Things beginner investors must know
Revealing "Investment Principles Proven Through 40 Years of Investment Experience."

The author introduces his own investment principles, thoroughly tested through 40 years of investment experience, and elaborates on the "four criteria to consider when selecting a company to invest in."


(1) PER 10 or less: the lower the better
(2) PBR 1 or lower: The lower the better.
(3) The higher the dividend yield, the better, as it is higher than the bank's regular deposit interest rate.
(4) Cash-only company: The more cash, the better.

The author explains that by constructing a portfolio of companies that meet the four criteria above, you can not only avoid losses but also achieve returns that surpass the average stock market return and even exceed bank interest rates.
This is a must-know guide for inexperienced beginner investors, and it also provides a convenient way for investors who find it cumbersome to analyze each company individually.


And I also explained in detail how to calculate 'intrinsic value', the basis of value investing, which is also one of the questions I have received frequently from readers.
In particular, the author kindly explains how to calculate intrinsic value and apply it to investment, using examples of stocks in which he has actually invested over the past several years.
This will provide an opportunity for investors who are unfamiliar with corporate analysis to resolve their questions and improve their investment skills.
Additionally, when selecting companies to invest in, Sook-hyang introduces a "stock analysis table" format, concisely organized in her own unique way. This will also be valuable information for less experienced investors.

To make an investment that doesn't lose, you need to be patient and know how to wait.
At this time, reading the philosophy of the great fighters is the best remedy.

The author offers his own clear principles on topics that investors are likely to ponder at least once, such as timing buys and sells, setting target returns, cash allocation, and the number of stocks to hold in a portfolio.
Among these, what the author emphasizes is the importance of reading.
An investment method based on value investing requires patience and the ability to wait for a long time, and reading books containing the lessons of the masters can be a great help in that process.
Of course, reading is the best way to improve your investment skills, as you can indirectly acquire the proven investment methods and wisdom of the masters.


In fact, Sook-hyang is a voracious reader and avid reader, and she has carefully selected and introduced 104 books that she recommends to investors.
Furthermore, this book is richly quoting sentences that encapsulate the investment philosophies of the masters, allowing readers to access their voices without spending too much time.


By the time this book was written, the author had finished his long career as a part-time investor and had transitioned into a full-time investor.
And as I had planned for a long time, I was able to enjoy a worry-free retirement thanks to investment returns and dividends.
His realistic retirement plan, which he actually implemented, will be a valuable reference for anyone who longs for financial freedom.


The author emphasized, “It is important to prepare for a comfortable life after retirement, but you should also enjoy each day you live.” He added, “Excessive investment not only makes you anxious and prevents you from living a happy life, but an impatient mind that acts against reason leads you down the path of failure, so the most important virtue in investing is a relaxed mindset.”

The lessons that Sookhyang imparts are not limited to investment.
I hope this book will be an important companion on your path to financial freedom.

About investment
Warren Buffett's thoughts on the neighbor's house

Stocks are easy when you look at them from a long-term perspective.
No one knows the short-term ups and downs.
However, anyone can become rich by buying 'cheap stocks compared to their value' for more than five years.

"You can retire rich by investing just 10% of your income."
Value investing allows you to enjoy your current life while also living a worry-free life after retirement.

“South Korea is a developed country.”
In a country that has joined the ranks of advanced nations, an era of low growth and low interest rates is inevitable, and the only way to protect assets and thrive in the future is through stock investment.

The KOSPI 5000 Era Has Just Beginned
The constitution of the Korean market is changing along with the new stock market policy.
This is the golden age of value investing, an era where undervalued stocks are finding their true value. Now is the starting point.