From first-time learners to daily market watchers
Wherever you are,
your next step.
Chart basics, an in-depth stock textbook, a US market calendar and a 40-stage mock trading challenge — all in one place.
New to stocks
Already investing
Most tools and lessons are currently in Korean. Translations are being added step by step — the menus, numbers and charts work the same in any language.
Mock Trading
Practice on random charts and take on 40 real-world stages. Real money: zero.
Stock Textbook
13 in-depth chapters that experienced investors often skip.
US Market Calendar
CPI, FOMC and Big Tech earnings, in US Eastern or Korean time.
My Trades
Your buys and sells, turned into returns.
Calculators
Average cost, returns, dividends and tax in seconds.
Frequently asked questions
Is it free? Do I need an account?
Everything is free and works without an account. Mock trading uses virtual money only and is never connected to real money or a brokerage account.
Do you tell me which stocks to buy?
No. This site never recommends specific stocks or when to buy or sell. It explains concepts and gives you tools to calculate and practice, so you can decide for yourself.
Is the chart and mock trading data real?
No. It is simulated data made for learning, with real-market features such as volatility clustering and earnings gaps. Every chart is labeled as sample data.
Where is my data stored?
Only in the browser you are using. It is never sent to a server. You can export it to a file to keep a backup or move it to another device.