Understanding price and quantity

New Order Single Example

In a New Order Single <D> message for the BTCUSD symbol:

• OrderQty <38> is denominated in BTC (the quantity currency).
• Price <44> is denominated in USD (the price currency).

Raw FIX Message

Code
RAW
8=FIX.4.4|9=137|35=D|34=2237|49=CLIENT|52=20160218-22:25:24.277|56=GEMINI|11=SOME_ORDER|38=5|40=2|44=420.18|54=1|55=BTCUSD|59=1|60=20160218-17:24:14.453|10=066|

HEADER
        8         BeginString: FIX4.4
        9          BodyLength: 137
       34           MsgSeqNum: 2237
       35             MsgType: NewOrderSingle (D)
       49        SenderCompID: CLIENT
       52         SendingTime: 20160218-22:25:24.277
       56        TargetCompID: GEMINI
BODY
       11             ClOrdID: SOME_ORDER
       38            OrderQty: 5
       40             OrdType: LIMIT (2)
       44               Price: 420.18
       54                Side: BUY (1)
       55              Symbol: BTCUSD
       59         TimeInForce: GOOD_TILL_CANCEL (1)
       60        TransactTime: 20160218-17:24:14.453
TRAILER
       10            CheckSum: 066