Portuguese Business Dictionary (ISBN 0884003213)

disappointment:
Sadly, Portuguese is not well served when it comes to up-to-date and comprehensive bilingual dictionaries, and this is no exception. It does provide basic terms, but you will look in vain for such useful expressions as "posicao vendida" or "posicao comprada," for example, or "balcao" in the sense of "bank branch" or "over the counter (stock trading)," etc. That said, I have to admit it's a step forward. Just don't expect too much.

Excellent all-around reference:
This compact business dictionary, while not exhaustive, provide a great deal of useful business terms in a variety of business fields, including computers terms used in business. It fulfills a long-felt need in English-Portuguese lexicography.