Request Market Rule
EClient.reqMarketRule (
marketRuleId: int. The id of market rule
)
Requests details about a given market rule. The market rule for an instrument on a particular exchange provides details about how the minimum price increment changes with price.
A list of market rule ids can be obtained by invoking [EClient.reqContractDetails](/tws-api/doc/contracts-financial-instruments/contract-details/request-contract-details) on a particular contract. The returned market rule ID list will provide the market rule ID for the instrument in the correspond valid exchange list in contractDetails.