One Triggers Other (OTO)
Order TypesAn order setup where filling the first order automatically activates a second (or second and third) pending order. Used to automate entry and exit in one setup.
What Is a One Triggers Other Order?
A One Triggers Other (OTO) order links a primary order to one or more secondary orders that become active only when the primary order fills. This lets you pre-plan an entire trade: entry, Stop-Loss, and Take-Profit, all in a single setup before the entry even triggers.
OTO Order Example
You expect EUR/USD to break above 1.0880 and then target 1.0950 with a stop at 1.0850. You create an OTO with a buy stop at 1.0880 as the primary order, and a sell limit at 1.0950 (take-profit) and sell stop at 1.0850 (stop-loss) as secondary orders. The secondary orders only appear in the market after the primary buy stop fills.
OTO in Practice
OTO orders are particularly useful for traders who cannot monitor the market continuously. You can set up complete trade plans in advance and walk away. Not all retail forex platforms support full OTO functionality, but many do offer similar features through "bracket orders" or "conditional orders" in their advanced order types. Check your broker's order management tools to see what is available.
Related Terms
One Cancels Other (OCO)
A pair of linked orders where filling one automatically cancels the other. Commonly used to set both a stop-loss and take-profit around an open position.
Stop-Loss
An order that automatically closes a position at a predetermined price to limit losses. The most important risk management tool in forex trading.
Take-Profit
An order that automatically closes a position at a predetermined price to lock in profit. It is the profit-side counterpart to a stop-loss.