9/3/2010 AAA 17.88 CZK 0.00% CETV 432.90 CZK 1.62% ČEZ 832.00 CZK -0.24% ECM 131.18 CZK -1.11% ERSTE GROUP BANK 740.00 CZK -0.67% KITD 181.25 CZK 2.11% KOMERČNÍ BANKA 4,010.00 CZK -1.23% NWR 221.00 CZK 0.91% ORCO 168.76 CZK 1.06% PEGAS NONWOVENS 433.00 CZK 0.25% PHILIP MORRIS ČR 8,995.00 CZK 0.50% TELEFÓNICA O2 C.R. 430.00 CZK -1.80% UNIPETROL 227.00 CZK 0.09% VIG 931.00 CZK -0.17%

Block Trades

Block trading means trading where at least one party to the trade is an Exchange member, concluding a trade on its own account or for its client.

The object of the trade is a single issue of an investment instrument. The trade is agreed at a price per 1 piece or for the full volume of the trade, the number of items and the settlement date. The price of a concluded trade is neither limited in any way, nor is it dependent on the price at the Exchange.

The agreed trade is then registered in the Exchange’s automated trading system (AOS).

Block trades must satisfy a minimum volume requirement, currently established as follows:

  • CZK 1 for stocks
  • CZK 10,000 for bonds

Block trades are settled with a deadline of T+0 to T+15 (where T is the registration date of block trades in the Trading System). The Exchange Guarantee Fund guarantees do not apply to block trading.

Registration of block trades must take place within the established deadline:

Security type Registration of a block trade
Shares till 5 minutes during the open phase of SPAD trading
till 60 minutes during the closed phase of SPAD trading
Bonds till 120 minutes following conclusion of the trade


Information about these trades is published immediately after registration in AOS through the data interface (Exchange members, agencies) and the Exchange’s website (public).

There are two types of block trading:

  • block trades
  • block trades with parties not registered as exchange members

Block Trades

Both trading parties are Exchange members (they conclude the trade on their own account or for their client).

Each party enters its part of the trade, i.e. two orders are entered into AOS – buy and sell. If the paired items in the orders are the same, the orders are matched, and the trade is considered to have been registered.

Immediately after registration, the trade is reported to the Czech National Bank for both parties to the trade.

Block Trades by Exchange Members with Non-members

One trading party is an Exchange member (the member enters instructions on its own account or for its customer) and a non-member of the Exchange is the other party in the trade.

The Exchange member registers an order for the trade (from its own viewpoint), and as the opposite party it states the non-member in question and a custodian that will handle the trade for the non-member. The system immediately generates an automatic counter-order with information about the custodian of the non-member. The custodian must provide appropriate data for the conclusion of the trade. The trade is registered in the block trade database in AOS and is published. Immediately after registration, the trade is reported to the Czech National Bank for the Exchange member. The non-member must have the trade reported for itself.

Detailed information: