API Documentation

Category Description

Open Interest at the previous sessions close

Category Identification

pNxCoreMessage->coreData.Category.pnxStringCategory->Atom 67
pNxCoreMessage->coreData.Category.pnxStringCategory->String OpenInterest

Update Time and Frequency

Approximate Time Info
00:00 AM Information from previous session
06:30 AM Current session information
No Updates No updates throughout the day

Category Fields | 1

Index FieldName FieldType C Code Info
0 OpenInterest NxCFT_32BIT pnxFields[0].data.i32Bit Open Interest before start of Session Date

Code Sample from CategoryDumper project:

void onNxCoreCategory_67(const NxCoreMessage *pNxCoreMsg)
     NxCategoryField *pField;
     // Print the category num and the Symbol
     if (pField->Set)
         printf("Open Interest: %d \n",pField->data.i32Bit);