Risk Management
Position sizing is the decision of how much capital to commit to a single trade, expressed as a fixed amount, a percentage of the balance, or a size derived from the distance to the stop-loss so that each trade risks the same fraction of the account.
Two traders following the same channel can end the month with opposite results purely because of sizing. A fixed $100 per trade keeps exposure flat as the account grows or shrinks; a percentage of balance compounds and also automatically shrinks after a losing run; risk-based sizing makes a trade with a tight stop larger and one with a wide stop smaller, so every loss costs about the same. Whichever method is chosen, the sum across all open positions is what matters: five "small" trades in correlated coins are one large trade.
Each bot has its own sizing rule in the wizard. On crypto exchanges size is set as margin per signal in USD, combined with your leverage cap; on MetaTrader 5 it is a fixed lot size, a percentage of balance, or a risk-based lot calculated from the stop distance in pips. Sizes are rounded to the venue's lot step and checked against its minimum notional; if the rounded size would deviate from what you asked by more than a set tolerance, the order is not placed and the reason is shown with the nearest valid amounts. Limits on the number of open positions and on positions in the same direction stop a busy channel from stacking exposure. On MT5, multi-target signals split the lot across legs and the wizard shows you the per-leg lots before you save. The settings are described on the crypto and forex feature pages.
A $5,000 MT5 account uses risk-based sizing at 1% per trade. A signal on EURUSD has a 25-pip stop. Risk per trade is $50; at $10 per pip per standard lot, the position is 0.20 lots. The next signal on XAUUSD has a 200-point stop, so the same 1% rule produces a much smaller lot. Both trades lose $50 if stopped, which is what the rule is for.