The dictionary contains about 35,000 entries. It covers banking and stock trading. It also covers newer fields like swaps, hedging, derivatives, futures, EU monetary terminology, etc. It's not mentioned in the preface, but it also covers balance sheets reasonably well. There is also reasonable coverage of general economic and business life.
In general, I have to say this is not the best dictionary of this kind I've seen (Wirtschaftswörterbuch by Wilhelm Schäfer, from Vahlen Verlag is better), but it's pretty good and very reasonably priced. I use this one quite a bit - it's the one I reach for second when dealing with this field.