04/03/2025

04/18/2025

Plan

Exchanges

TT is offering connectivity to Cboe C1 Equity Index Options (Units 31 to 35). - The available order types are Market, Limit, Stop Limit, and Stop Market. - The Time in force supported are IOC, Day, GTC, GTD, Opening, and On Close. - The product types supported for trading are Options and Strategies. -TT supports all trading sessions offered by CBOE. GTH (Global Trading Hours), RTH (Regular Trading Hours), and Curb session. SPX, VIX, and XSP may be traded in all sessions (GTH, RTH, and Curb), while all other products are limited to RTH only. - Session eligibility sets which trading sessions the account can trade in. This can be configured on TTUS -> Accounts
Features supported: - Strategy creation - TT FIX API - Cancel on Disconnect (configured at the exchange)
Clients are recommended to set the port attribute "Report Working Prices", "Cancel on Disconnect", "Carried Order Restatements", "Done for Day Restatements" with the exchange.
Price Adjustment Due To NBBO: If the limit price of an order does not cross the NBBO, the order will be displayed at the price at which it is placed. If the limit price of an order crosses the NBBO, the limit price will be adjusted on entry to the locking price of the NBBO. This adjusted price is sent in WorkingPrice (tag 9690). TT will adjust the working price of the order in the order based on WorkingPrice. TT recommends that all users set the port level attribute ‘Report Working Price’ to Yes to receive the ‘WorkingPrice’ of the order in tag 9690. If the NBBO widens, the displayed price will be readjusted according to the new price band. When this happens, Cboe does not send restatements or notifications for the new adjusted price. The user on TT will continue to see the initial working price. More information: https://www.cboe.com/us/options/trading/complex_orders/

https://library.tradingtechnologies.com/downloads/CBOE_C1_Options.pdf

(Ref 179755)

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