Abstract: The present invention relates to computerised trading systems and associated methods, particularly those that implement trades in basis trading where the two instruments have different and non-universally agreed pricing mechanisms and metrics, such as futures crosses in the European derivative markets. The present invention allows traders to enter orders expressed in terms of their own metrics. These orders are then converted to be expressed according to a standardised metric such that comparisons may be made and orders matched. Once matching orders are identified, these orders can be reported back to the traders, expressed in terms of their own metrics.

Abstract: The present invention relates to computerized trading systems and associated methods, particularly those that implement trades in basis trading where the two instruments have different and non-universally agreed pricing mechanisms and metrics, such as futures crosses in the European derivative markets. The present invention allows traders to enter orders expressed in terms of their own metrics. These orders are then converted to be expressed according to a standardized metric such that comparisons may be made and orders matched. Once matching orders are identified, these orders can be reported back to the traders, expressed in terms of their own metrics.

Abstract: An electronic trading system is described in which risk premiums are stored for each participant in respect of other participants. These risk premiums are added or otherwise applied to the prices on orders, for the purposes of matching orders to make trades and for providing market data to participants. The risk premiums allow each participant to account for the risk associated with trades with particular other participants.

Abstract: A tubular ring includes an inner surface for receiving a bottle cap. A top portion extends from one side of the ring to provide an elongated outer surface and a bottom portion extends from the opposite side of the ring to define an opening for receiving the cap. The cap is inserted into the opening and the ring expands to accommodate the cap. The inner surface frictionally engages the bottle cap, so that the cap is rotated relative to a bottle to remove the cap from the bottle.