The London listed technology sector has had a very good summer. Two companies were promoted to the FTSE 250 index: FDM* and more recently Alfa, boosting the number of technology companies in the FTSE 250 by 40% since the start of the summer. Three new tech companies were listed during the course of the summer: Alfa, Ethernity and GetBusy*. All three have performed robustly, with an average gain of 33%, by far outperforming the AIM All Share Index, which was the best performing major index, po ....