ChainCatcher message, in response to the introduction of cross-coin OCO order functionality on the exchange on platform X, stated that applying cross-coin OCO orders in CEX is actually not easy, as it requires a trade-off between performance and execution guarantee. Meanwhile, introducing this feature in DEX/cross-chain bridges seems to be even more challenging. (Note: OCO order, One Cancels the Other Order, allows traders to place two orders simultaneously, combining a limit order and a limit stop-loss order, but only one can be executed.)