Systems, methods, and media for trading securities

1 . A method for trading securities comprising:

accessing at least one record of an order in a trading blotter, the order having a security and side;

sending a notification message indicating the security and side for the order;

searching for a match for the notification message;

if a match is found, obtaining a quantity associated with the order; and

determining whether the quantity is adequate for executing a trade.

2 . The method of claim 1 , further comprising automatically executing a trade for the order.

3 . The method of claim 1 , further comprising inviting two parties corresponding to the trade to negotiate.

4 . The method of claim 1 , wherein obtaining the quantity comprises polling for quantity and receiving a status message.

5 . The method of claim 1 , further comprising determining whether two non-matching orders are similar and notifying a trader of that the orders are similar.

6 . The method of claim 5 , further comprising providing an interface of symbol names and modifying the display of a symbol name for a security if two similar orders in that security are identified.

7 . The method of claim 6 , wherein modifying the display comprising blinking the symbol name.

8 . The method of claim 1 , receiving a user selection specifying how orders of a trader are to be shared.

9 . The method of claim 1 , wherein the at least one record of the order is for an uncommitted order.

10 . The method of claim 1 , wherein searching for a match for the notification message comprises comparing the notification message to a designated order.

11 . The method of claim 1 , wherein searching for a match for the notification message comprises comparing the notification message to an uncommitted order.

12 . A method for performing a negotiated trade in a security comprising:

checking for unusual activity in the security;

waiting a random or semi-random period of time;

causing a trader to receive an indication that a negotiated trade has been initiated;

determining if a trade offer from the trader is at or better than the mid-point price in the security for a contra party to the trader;

if the trade is at or better than the mid-point price, accepting the trade offer; and

executing the trade.

13 . The method of claim 12 , further comprising making a trade offer at the mid-point price for the security.

14 . A system for trading securities comprising:

one or more processors that:

access at least one record of an order in a trading blotter, the order having a security and side;

send a notification message indicating the security and side for the order;

search for a match for the notification message;

if a match is found, obtain a quantity associated with the order; and

determine whether the quantity is adequate for executing a trade.

15 . The system of claim 14 , wherein the one or more processors also automatically execute a trade for the order.

16 . The system of claim 14 , wherein the one or more processors also invite two parties corresponding to the trade to negotiate.

17 . The system of claim 14 , wherein obtaining the quantity comprises polling for quantity and receiving a status message.

18 . The system of claim 14 , wherein the one or more processors also determine whether two non-matching orders are similar and notify a trader of that the orders are similar.

19 . The system of claim 18 , wherein the one or more processors also provide an interface of symbol names and modify the display of a symbol name for a security if two similar orders in that security are identified.

20 . The system of claim 19 , wherein modifying the display comprising blinking the symbol name.

21 . The system of claim 14 , wherein the one or more processors also receive a user selection specifying how orders of a trader are to be shared.

22 . The system of claim 14 , wherein the at least one record of the order is for an uncommitted order.

23 . The system of claim 14 , wherein searching for a match for the notification message comprises comparing the notification message to a designated order.

24 . The system of claim 14 , wherein searching for a match for the notification message comprises comparing the notification message to an uncommitted order.

25 . A system for performing a negotiated trade in a security comprising:

one or more processors that:

check for unusual activity in the security;

wait a random or semi-random period of time;

cause a trader to receive an indication that a negotiated trade has been initiated;

determine if a trade offer from the trader is at or better than the mid-point price in the security for a contra party to the trader;

if the trade is at or better than the mid-point price, accept the trade offer; and

execute the trade.

26 . The system of claim 25 , wherein the one or more processors also make a trade offer at the mid-point price for the security.

27 . A computer-readable medium containing computer-executable instructions that, when executed by a processor, cause the processor to perform a method for trading securities, the method comprising:

accessing at least one record of an order in a trading blotter, the order having a security and side;

sending a notification message indicating the security and side for the order;

searching for a match for the notification message;

if a match is found, obtaining a quantity associated with the order; and

determining whether the quantity is adequate for executing a trade.

28 . A computer-readable medium containing computer-executable instructions that, when executed by a processor, cause the processor to perform a method for performing a negotiated trade in a security, the method comprising:

checking for unusual activity in the security;

waiting a random or semi-random period of time;

causing a trader to receive an indication that a negotiated trade has been initiated;

determining if a trade offer from the trader is at or better than the mid-point price in the security for a contra party to the trader;

if the trade is at or better than the mid-point price, accepting the trade offer; and

executing the trade.