TWS API: Trailing Stop

Trail Offset. Required.
One of the following class attributes must be supplied with the order ticket.

• Absolute Offset: Order.auxPrice
• Relative Offset: Order.trailingPercent
  Note that the value assigned to trailingPercent will be interpreted as a true percent, e.g., trailingPercent = 0.50 becomes 0.50% = 0.0050.

Stop Price: Order.trailStopPrice

In the example to the right, we have outlined two Trailing Stop orders with explicit Stop Prices via order.trailStopPrice.
In the first order, we supply a relative offset of 2% using order.TrailStopPercent.
In the second order, we supply an absolute offset of 3 units of currency using order.auxPrice.

1
order = Order()
2
order.orderType = "TRAIL"
3
order.trailStopPrice = 100
4
order.trailingPercent = 2