# About

After connecting and logging on, the client can either request a symbol list or subscribe to market data.

Gemini does not resend messages on a market data channel. Instead, Gemini will send a [Sequence Reset `<4>`](https://www.onixs.biz/fix-dictionary/4.4/msgtype_4_4.html) message with [GapFillFlag `<123>`](https://www.onixs.biz/fix-dictionary/4.4/tagNum_123.html) field set to `Y` and the new sequence number in the [MsgSeqNum `<34>`](https://www.onixs.biz/fix-dictionary/4.4/tagNum_34.html) field.