1. Study the chart
You see the 30 trading days before the filing: price action only, no ticker, no dates in the future.
The insider trading game
When a CEO buys or sells shares in their own company, they have to disclose it. chart.champ turns those real filings into a game: you see the stock chart leading up to the trade — but not the trade itself — and guess which way the CEO went.
2. Call it: buy or sell
You have 25 seconds (or 10 on fast mode) to decide whether the insider bought or sold their own stock.
3. See the real filing
The reveal shows the actual trade, its estimated value and how the stock performed afterwards.
Real insider trades, not made-up ones
US rounds come from SEC EDGAR Form 4 filings — the legal disclosures officers and directors file when they trade their own company's stock. European rounds use managers'-transactions disclosures under the Market Abuse Regulation. Trade values are filtered so rounds stay guessable: no tiny option grants, no billion-dollar founder sales.
Insider buying is one of the most-studied signals in finance — executives know their own business better than anyone. Playing a few rounds a day trains you to read the same charts quants screen for.
Frequently asked questions
Is the insider trading game based on real trades?
Yes. Every round uses a real insider transaction disclosed in an SEC Form 4 filing or a European managers'-transactions disclosure.
Do I learn whether the CEO was right?
After you guess, the reveal shows the actual direction of the trade, its estimated value and how the stock performed since.
Is the insider trading game free?
The Ultimate Challenge is free. The CEO game is part of the Core plan (€5 per year) which unlocks 10 games.