Modes
- Practice: Pick a style (blue chip, growth, theme stock and more) and a difficulty, and a chart is generated at random. Before you start you see only the past part of the chart; press “New chart” to make another. Orders can fill at the same day’s close or the next trading day’s close.
- Stage challenge: 40 situations you often meet in real markets, grouped into 8 chapters: earnings shocks, rights offerings, rate hikes, theme stock spikes, false breakouts, averaging-down traps, bubble bursts and more. Choose Easy, Normal or Hard for each stage and earn 1–3 stars. One star unlocks the next stage. From Normal up, fees and tax always apply; Hard shows only the chart, with no hints or indicators.
- Season contest and rankings: Fair rankings need trades and returns to be calculated on a server, so this comes in a later phase.
You can keep up to 10 sessions in progress and resume any of them. “Back to list” keeps the current session and lets you start a new one.
How the practice charts are made
Each chart mixes one of 16 sectors with one of 6 styles, and is built to show features common in real prices:
- Volatility clusters: A big move is often followed by another big move, and quiet periods tend to stay quiet.
- Occasional huge days: Much larger jumps and drops than usual appear from time to time.
- Market-wide moves: Every chart is affected by a simulated market, so a market sell-off shakes most stocks.
- Earnings releases: About every three months, earnings cause opening gaps and a few days of higher volume and volatility. The play screen shows how many trading days remain until the next release.
- Volume: Volume rises on big-move days. Prices follow Korean tick sizes and never move more than ±30% in a day.
Statistics
- Max drawdown (MDD): The largest fall from a peak in your account value. Two results with the same return can feel very different if one had a deep drawdown.
- Win rate: The share of sells that ended in profit. A high win rate can still lose money overall if the losing trades are large.
- Average holding period: How many trading days you held the shares you sold, counting the earliest-bought shares as sold first.
- Buy and hold: The result of buying as much as possible on day 1 and holding to the end — a baseline to see whether your trading helped.
Good to know
Charts are program-generated sample (synthetic) data, and the stock names are not real companies. They imitate features of real prices, but a method that works here is not guaranteed to work in real markets.
Results on past or simulated charts do not represent real investment results. This is a learning tool for recording and reviewing your decision process.
Progress and records are never sent to a server; they stay in this browser. Clearing browser data deletes them, so export a file from the records page if you need a backup.