High-Frequency Trading

Computer-driven trading in huge volume over tiny time frames.

What is High-Frequency Trading?

Algorithms place and cancel orders in microseconds, often acting as market makers or arbitraging tiny price differences. Supporters credit it with narrower spreads; critics point to fragility, such as flash crashes, and speed advantages unavailable to ordinary investors.

High-Frequency Trading: a worked example

A firm co-locates its servers next to an exchange's to shave microseconds off execution.

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