GeminiGemini
Demo environmentGet API key
  • Overview
  • Crypto Trading
  • Prediction Markets
  • Perpetuals
  • Stocks
  • API Reference
  • SDKs & Tools
Changelog
Gemini logoGemini logo

© 2026 Gemini Space Station, Inc.

Overview
Spot
    OverviewGet started
    Orders API
    Market Data API
    Fund Management API
    Instant Orders API
    WebSocket API
    FIX API
      Overview
      Order Entry
        IntroductionErrorsThird Party Support
        Workflow
        Exchange-Bound Messages
        Client-Bound Messages
        Examples
          New Order SingleNew Order Single on Behalf of Third PartyNew Market Buy OrderNew Market Sell OrderMarket Order FillMarket Order Partial FillExecution ReportsOrder Cancel RequestServer-Side Cancellations
        Identifiers
        Price & Quantity
        Gemini Clearing
      Market Data
      Drop Copy
Margin
    Overview
    Margin REST API
      Get Margin Account SummaryGet Margin Interest RatesPreview Margin Order Impact
Staking
    Overview
    Staking REST API
      List Staking BalancesStake Crypto FundsUnstake Crypto FundsList Staking Event HistoryList Staking RatesList Staking Rewards
Clearing
    Clearing REST API
      Clearing Orders
      Broker & Trade Operations
Examples

New Market SELL Order

Request

This is an example of a request for a market SELL order:

Code
RAW 8=FIX.4.4|9=126|35=D|34=2|49=DEV|52=20181023-17:49:51.691|56=GEMINI|11=YLWC3xFi6ygIxFSKVY|40=1|54=1|55=BTCUSD|60=20150218-18:45:02.003|152=500.0|10=112| HEADER 8 BeginString: FIX.4.4 9 BodyLength: 126 34 MsgSeqNum: 2 35 MsgType: NewOrderSingle (D) 49 SenderCompID: DEV 52 SendingTime: 20181023-17:49:51.691 56 TargetCompID: GEMINI BODY 11 ClOrdID: YLWC3xFi6ygIxFSKVY 38 OrderQty: 2.0 40 OrdType: MARKET (1) 54 Side: SELL (2) 55 Symbol: BTCUSD 60 TransactTime: 20150218-18:45:02.010 TRAILER 10 CheckSum: 112

Notes:

  • OrdType: MARKET (1) indicates this is a Market order
  • OrderQty: 2.0 The amount of BTC to sell for USD

Execution Report

and the associated Execution Report for a market SELL order:

Code
RAW 8=FIX.4.4|9=161|35=8|34=2|49=GEMINI|52=20181023-20:26:27.359|56=DEV|6=0|11=YLWC3xFi6ygIxFSKVY|14=0|17=43|37=42|38=2.0|39=0|54=2|55=BTCUSD|60=20150218-18:45:02.042|150=0|151=2.0|10=113| HEADER 8 BeginString: FIX.4.4 9 BodyLength: 161 34 MsgSeqNum: 2 35 MsgType: ExecutionReport (8) 49 SenderCompID: GEMINI 52 SendingTime: 20181023-20:26:27.359 56 TargetCompID: DEV BODY 6 AvgPx: 0 11 ClOrdID: YLWC3xFi6ygIxFSKVY 14 CumQty: 0 17 ExecID: 43 37 OrderID: 42 38 OrderQty: 2.0 39 OrdStatus: NEW (0) 54 Side: SELL (2) 55 Symbol: BTCUSD 60 TransactTime: 20150218-18:45:02.042 150 ExecType: NEW (0) 151 LeavesQty: 2.0 TRAILER 10 CheckSum: 113
New Market Buy OrderMarket Order Fill
On this page
  • Request
  • Execution Report