All Sessions
OpenYield offers five sessions per subscriber:
| Session | Suffix | Purpose |
|---|---|---|
| Market Data | -MD | Equity-style top-of-market feed including best bid, best offer, daily high, low, and open. |
| Order Book | -OB | Full depth of the live order book for clients that need complete order book visibility. |
| Trading | -TR | Live market orders and executions, for both providing liquidity (Limit Order or Quote) and taking liquidity (Market Order). |
| Drop Copy | -DC | Copies of execution confirmations delivered post-trade. |
| Request | -RQ | Request for Quotation (RFQ) equivalent connection to post new Requests and/or receive Requests and post Quotes via the Request for Order protocol. |
Choose either Market Data or Order Book unless full depth is required. New orders are only processed on the Trading (TR) and Request (RQ) sessions. Messages sent on any other session — except Standard FIX session messages — are ignored.