Support for Mini Options Added to Active X, Java and C++ APIs

Support for mini options has been added to the Active X, Java and C++ APIs. You now can identify such products by providing the multiplier or trading class in both requests to TWS and responses from TWS. This enhancement requires minimum server version 68.

Specifically, the tradingClass string attribute has been added to the Contract structure and removed from the ContractDetails structure in order to support mini options requested by the API. The following requests and callbacks that include the Contract structure as a parameter can now handle the tradingClass and multiplier attributes for mini options. Also, some of these requests can now use the conId attribute to identify a security (these are indicated below).

Requests

    reqMktData
    reqHistoricalData - also conId
    reqRealTimeBars - also conId
    reqContractDetails
    reqMktDepth - also conId
    exerciseOptions - also conId
    placeOrder
    calculateImpliedVolatility
    calculateOptionPrice

Callbacks

    openOrder
    updatePortfolio
    execDetails
    position

Note the following:

    multiplier is encoded/decoded after contract.right and before contract.exchange in all requests and callbacks.
    conId is encoded after tickerId/reqId before contract.symbol in all requests and callbacks.
    tradingClass is encoded/decoded after contract.localSymbol in all requests and callbacks.

The reqFundamentalData request, available for stocks only, can also handle the conid attribute in the Contract structure but not tradingClass or multiplier.
New Methods for Advisors

New methods and their associated events have been added to the ActiveX, Java, and C++ APIs to allow advisors to request data from the Account Window Summary tab and to request positions for all accounts. These methods and events require minimum server version 67 and minimum TWS version 936.

The new methods are:

    reqAccountSummary() - Requests the data that appears on the TWS Account Window Summary tab and keeps it up to date.
    cancelAccountSummary() - Cancels the request for Account Window Summary tab data.
    reqPositions() - Requests position data for all accounts.
    cancelPositions() - Cancels real-time position updates.

Their associated events are:

    accountSummary() - Returns the data from the TWS Account Window Summary tab.
    accountSummaryEnd() - This is called once all Summary tab data for a given request are received and functions as an end marker for the accountSummary() data.
    position() - Returns real-time positions for all accounts.
    positionEnd() - This is called once all position data for a given request are received and functions as an end marker for the position() data.