English to Portuguese Bus/Financial Business/Commerce (general)

The risk of doing this type of trade is that if the front strike is in the money but the back strike is not [i.e., a price between 54 and 55], you could end up exercising the long 54 call and not getting called away on your short 55 call. While this would imply a profit at expiration, it would also mean that you would be left net long a near $800 million position, which would have to be carried over the weekend until the Tokyo market opened on Sunday night. In other words, you would be left with a tremendous risk exposure to an adverse price move over the weekend.