There are limits to the maximum order size for a single trade.
💡Did you know you can open a position of up to 1,000 lots on EURUSD, 1,000 lots on XAUUSD (gold), or even 600 lots on US100 (Nasdaq 100 CFD Index)?
All of this is possible — provided you have sufficient free margin available in your trading account.
You can find a complete list of all tradable instruments on the Fintokei website, including a column showing the maximum order size per trade.