I would like to trade stocks on different kinds of markets i.e. US, UK, Germany, Scandinavia, Eastern Europe and perhaps even the Asian market. I have the following criteria:
1) I wish to be able to take long and short positions
2) Most importantly, trade with lowest transaction costs possible
3) It must be real-time (a small delay of 5-15 min may be allowed but the execution must be real-time)
I live in Europe and currently the lowest fees are something like 0,05% per trade which quickly adds up. Moreover, a 0,05% doesn't give you the opportunity to trade with "small" amounts and try out different trading strategies.
Do you know any brokerage firms which fulfil the criteria above?