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Eurex Exchange’s T7
Eurex Frankfurt AG
Functional Reference
V 2.5.1
The open quantity of the new quote is then derived as the total quantity of the new quote minus the
accumulated executed quantity of the old quote.
In case that the total quantity of the new quote is not greater than the accumulated executed quantity
of the old quote, the request to enter a new quote is automatically interpreted as a request to delete
the old quote, and no new quote is entered.
Like in quote entry mode, the new quote will receive the priority timestamp of the old replaced quote, if
the price remains the same, and if the new open quantity is not higher than the old quote’s open
quantity. In all other cases, the entry time of the quote defines its time priority.
5.3.4
Quote Deletion on Request
It is possible to delete an individual quote that rests on the order book. The deletion request identifies
the quote by side and instrument, and assumes that the quote is meant that belongs to the same
session as the one through which the deletion request is sent. It is not possible to delete an individual
quote through a different session.
In addition to the deletion of individual quotes with a mass quote request, T7 supports also a special
Delete All Quotes Request, which allows the deletion of all quotes at once, which belong to a specified
session in a product. Such a request can be sent through any session that belongs to the same
business unit.
During an auction freeze instrument state, just as for orders, T7 cannot delete quotes as this would
change the order book situation. Like for orders, a request to delete a quote during an auction freeze
state is accepted by T7, but the quote is merely marked as pending deletion. The handling of quotes
that are marked as pending deletion is identical to the handling of orders in this situation as described
in chapter 4.2.3.
5.3.5
Automatic Quote Deletion
Quotes are deleted automatically in the following situations:

The instrument enters the state Restricted or the state Closed.

The product enters the state Halt.

A Volatility Interrupt occurs.

The owning session gets disconnected.

In the case of certain risk protection events that require the deletion of all orders and quotes.

A technical back end partition overload condition has been detected

A technical failure requires a restart of the central matching engine.
Quotes are always considered as having an order validity of Good-For-Day. However, since quotes
are always deleted when the instrument enters one of the instrument states Restricted or Closed, they
are in any case already deleted when the End-Of-Day processing starts.
5.3.6
Quote Deactivation
It is possible to deactivate or reactivate all quotes of a session that belong to the same product and
optionally to the same instrument type. The deactivation or reactivation is always valid for all the
quotes of a session for the specified product and instrument type. It is not possible to deactivate or
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