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Interactive Options Course
Lesson 7 of 8
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In the previous lesson, we learned how to customize market data functions which allows us to pull the market data from the TWS in the required format. In this lesson, we cover the various order functions available in the IBrokers package.
The orders functions covered in the lesson include:
This is a helper function which is used to obtain the next valid order ID for use with the TWS. The function takes a valid tws connection object as its argument. The function returns a character representation of the next numeric ID.
The syntax of the function is given as:
reqIds(conn)
Where
conn – a valid twsConnection of class twsconn.
Example:
The function creates a twsOrder object which is used in the placeOrder API call. This function gives the flexibility to construct different types of orders as per the requirement of the strategy.
The function takes arguments like:
orderId – the id for the order
action – identifies the side (BUY,SELL,SSHORT)
totalQuantity – order quantity
orderType – order type (MKT, LMT, PEGMKT, STP, STPLMT etc.)
lmtPrice – the LIMIT price for LMT, STPLMT, and REL order type.
transmit – specify whether the order is transmitted to the TWS
trailStopPrice – For TRAILLIMIT orders only
Example:
These functions are used to place or cancel an order to the TWS.
The syntax of the function is given as:
placeOrder(twsconn , Contract, Order)
cancelOrder(twsconn , orderId)
The function takes the following arguments:
twsconn – a twsConnection object
Contract – a twsContract object
Order – a twsOrder object
orderId – a valid order ID
Example:
In this lesson, we covered the various order functions available in the IBrokers package and provided a simple explanation with example. Knowledge of these order functions is essential to build an automated trading system.
Note – The IBrokers package provides native R access to Interactive Brokers Trader Workstation API
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