The order book charges an invisible fee for impatience. Measure it.
Slippage scales with order size, book depth and volatility — near zero on BTC majors in quiet hours, brutal on thin alts during news. For active traders it routinely costs more than the taker fee itself, and it never shows on a statement.
Limit orders where urgency allows, split large orders, trade liquid pairs and hours, and avoid market orders around news — depth is visible in the book before you click.
The percentage is the same but applies to the full position: at 20x a 0.1% slip instantly costs 2% of margin — on entry AND exit.
Yes — a triggered stop becomes a market order exactly when books thin out. Stop-limit orders bound the damage at the risk of not filling.
Free, no signup, runs entirely in your browser. Educational tool — not financial advice. Practice the setup risk-free on the MarginPad paper-trading terminal before putting real money behind it.