A corrective wave follows, composed of three sub-waves, and it moves against the trend of the next larger size (labeled as a, b, c). Corrective waves accomplish only a partial retracement, or "correction," of the progress achieved by any preceding impulse wave.

As the figure below shows, one complete Elliott wave consists of eight waves and two phases: five-wave impulse phase, whose sub-waves are denoted by numbers, and the three-wave corrective phase, whose sub-waves are denoted by letters.