Opening Cross: When is Fast Too Fast?


As the financial markets have sped up and become more dependent on low-latency market data to power algorithmic and high-frequency trading strategies, they arguably need oversight that can move at the same pace-not necessarily stricter oversight, but one that can follow and react to the markets in real time, even as the definition of "real time" evolves.

The so-called "flash crash" - perhaps poorly named since it had nothing to do with the much-vilified practice of flash orders - of May 6 still