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© 2026 Gemini Space Station, Inc.

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Exchange-Bound Messages

New Order Single <D> (MARKET)

To submit a new market order to Gemini, send a New Order Single <D> message with OrdType Market.

Gemini will respond to a New Order Single <D> message with an Execution Report <8>. See Execution Report <8> for examples.


Fields

Tag

Name

Req

Description

Standard Header

Y

MsgType = D

11

ClOrdID

Y

Unique identifier of the order as assigned by the institution. Uniqueness must be guaranteed by the institution for the duration of the connection to the order entry channel.

38

OrderQty

N*

*Required when Side is SELL or BUY (Derivatives-enabled flow, e.g. PerpetualSwap). Decimal quantity of the quantity currency to sell.

40

OrdType

Y

Order type.

 

Valid values:

1 = Market

54

Side

Y

Side of the order.

 

Valid values:

1 = Buy

2 = Sell

55

Symbol

Y

Ticker symbol of the order.

 

See Supported Symbols for valid values.

60

TransactTime

Y

Time of order creation (expressed in UTC).

152

CashOrderQty

N*

*Required when Side is BUY with the exception of Derivatives-enabled flow (e.g. PerpetualSwap). Amount in the price currency to use in the Market order.

544

CashMargin

N

Identifies whether order is a margin order or a non-margin order.

 

Valid values:

1 = Cash

2 = Margin Open

 

This field is optional. If not provided, the order is assumed to be a non-margin (cash) order.

Only accounts enabled for spot margin trading can specify margin orders.

3 = Margin Close is not supported.

Restriction: This field is only supported for buy orders (Side=1). Specifying this field on sell orders (Side=2) will result in a reject with error message: "CashMargin <544> not supported for sell orders".

Standard Trailer

Y

Last modified on April 17, 2026
New Order Single (Limit)New Order Single (Stop-Limit)
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