Expanded Flat
Elliott Wave Theory glossary · Corrective Structures & Sub Wave Math
Definition
A flat corrective pattern (3-3-5) where Wave B exceeds the origin of Wave A and Wave C exceeds the extreme of Wave A. The "overshoot" of both B and C is what makes this pattern expanded.
Expanded Flat in plain English
A 'flat' is a sideways-ish correction built in three parts — a move A, a bounce B, and a final move C — that roughly ends where it started, like the market treading water. An expanded flat is the dramatic version: the B bounce doesn't just retrace, it overshoots past where A even began, and then C overshoots past where A ended, so both waves push beyond their expected limits. That double overshoot is exactly why it's called 'expanded.' Picture a swing pushed back further than its resting point and then flung forward past normal — extra reach on both ends, but still ultimately a sideways pause before the real trend continues.
Learn these first
Practice Expanded Flat
Based on common Fibonacci relationships, how far might Wave C drop from the end of Wave B?
Related Elliott Wave Theory terms
Elliott Wave Theory practice questions · Elliott Wave Theory flashcards · Elliott Wave Theory study guide