"The window of opportunity to get into high-frequency trading is almost closed"

Interesting article from "Traders Magazine" on HFT:

High-frequency trading firms must be concerned about latency, but that level of concern should depend on "how much profit they intend to make from every millisecond or microsecond," Goldman's Faulkner said. He noted that firms must understand the "value of a micro or milli" for the particular strategy they're running.

"The infrastucture isn't the barrier" for firms interested in high-frequency trading, CFN's Casey told the audience. The barrier is competition. In his view, competing with the most latency-focused firms is a tough, elite game because, at that level, microseconds count.