Limit position size and trading hours
Cap contracts per order and per position, limit open symbols, block or cap a symbol, and reject orders outside your hours.
Position and session limits shape how and when an account can trade. Some cap how big an order or position can get. Others control which symbols trade and when. Each one rejects an order before it reaches your broker, across manual, automation, copy, and group orders.
Order and position limits#
These caps stop an oversized order, whether a bad alert, a copy multiplier, or a manual slip caused it.
Max Contracts Per OrderPer single orderOptionalThe most contracts you allow in one order. An order over the cap is rejected.
Position size limitPer contractOptionalThe most contracts you allow in one position for a contract. An order that would push the position past the cap is rejected.
Max Open PositionsDifferent symbolsOptionalThe most symbols you allow open at once. An order in a new symbol is rejected once you are at the cap.
Set these to your real max size and symbol count. They are a safety net for the oversized or extra order you did not mean to send.
Contract Rules#
Contract Rules control a single symbol. Use them to keep an account off a symbol, or to hold a symbol to a smaller size than your account-wide cap.
BlockReject the symbolOptionalOrders in the symbol are rejected. The account cannot trade it at all.
CapLimit the symbolOptionalOrders in the symbol are held to the contract cap you set for it.
Contract Rules apply to manual, automation, copy, and group orders, the same as the other limits.
Session hours and trading windows#
A trading window is the set of hours an account is allowed to trade. Lune rejects an order placed outside the window. Use it to keep an automation from firing overnight, or to hold an account to the session you trade.
In the windowAllowedOptionalOrders go through as normal.
Outside the windowRejectedOptionalOrders are rejected until the window opens again.
Set the limits#
Go to the Risk page and pick the account.
Enter Max Contracts Per Order, a position size limit per contract, and Max Open Positions.
Block or cap any symbol you want to control.
Choose the market hours the account is allowed to trade.
Lune checks new orders against every limit from now on.