Am I trading real money?
No. BarDrill uses virtual money to replay historical US stock sessions. Orders stay inside the simulation and are not sent to a broker or exchange. The account balance, trade outcomes and commissions shown in your scorecard are simulated figures. They do not represent money deposited, earned or owed through the app.
Does BarDrill give investment advice or signals?
No. BarDrill does not provide investment advice, trade ideas, signals or tips. It lets you make virtual trading decisions and reviews them against session rules. A score is feedback on the specified checks, not a recommendation to trade a stock, adopt a strategy or risk real money. Read the risk disclosure for context.
Where does the market data come from?
Replays use historical 1-minute market data for US stocks, including open, high, low, close and volume. Times are shown in US Eastern Time, or ET. The server releases bars one step at a time, so future bars are not visible during a session. The source granularity is one minute, not individual transactions.
Why can fills differ from a real broker?
BarDrill applies rules to historical bars instead of sending orders to a live market. Market orders fill at the next bar's open plus slippage. Limit and stop orders use the bar's price range. Real execution can involve conditions that this model does not reproduce. The walkthrough explains each fill rule and its limitations.
What is a blind drill?
It is a replay in which the ticker and date stay hidden until you finish. You make decisions using the bars you can see, then learn which session you practiced. This removes the displayed identity as a clue to the outcome. It cannot prevent you from recognizing a day you already remember.
Why is there no Level 2 or tick data?
BarDrill is built around historical 1-minute bars, not an order book or a record of every transaction. It therefore has no Level 2 or tick data. The exercise supports practicing entries, risk decisions and discipline within that resolution. It cannot recreate reading a live tape or studying the precise order of trades inside a minute.
Can I change the rules?
Yes, before the first fill. Editable settings include account size, maximum risk per trade, maximum daily loss, trade limit, distance from VWAP used to flag chasing, slippage and commissions. After the first fill, settings lock for the session. The defaults are practice parameters, not advice about suitable limits for a real account.
Why do the rules lock after the first fill?
A session needs a consistent reference for reviewing decisions. If you could raise your loss limit after reaching it, the final score would assess a different plan from the one you started with. Locking the settings preserves that reference. You can choose different settings before your first fill in a later session.
How does the discipline score work?
It starts at 100 and deducts points for recorded rule breaks, each shown with its time. Penalties range from 10 to 20 points and cover stops, risk, adding to losers, chasing, quick re-entry after losses, trade count and trading past the daily loss limit. The score runs from 0 to 100 and does not measure every aspect of trading skill.
What if the stop and target are hit in one bar?
BarDrill assumes the stop is hit first. A 1-minute bar provides a price range but does not reveal the full sequence of transactions inside that minute. The stop-first rule resolves that uncertainty conservatively. It does not mean the historical market necessarily moved through those prices in that order, or that a broker would have produced the same result.
Where are my sessions saved?
Practice results are stored on the site's server, linked to a random anonymous ID in a first-party browser cookie. Rule settings are also stored locally in your browser. The home page shows the history associated with that browser. There are no accounts or logins to connect different browsers. The privacy policy explains cookies and deletion.
Does it work on a phone?
BarDrill is a web app, but compatibility with particular phones, browsers or screen sizes is not specified here. Check that you can read the chart, inspect the risk preview and operate the controls on your device before relying on it for practice. Your session history is associated with the browser you use, not an account that follows you between devices.