SMC has a reputation for jargon. Each concept is a simple observation about where large orders likely sit and what price does when it reaches them.
Break of Structure (BOS)
Continuation · trend is intact
Price closes beyond the prior swing high in an uptrend (or swing low in a downtrend). A BOS says the current trend just proved itself again — pullbacks after a BOS are continuation entries, not reversals.
Change of Character (CHoCH)
Reversal warning · first crack
The first time price breaks structure against the prevailing trend — a close below the last higher low in an uptrend. Not a reversal by itself, but the earliest objective sign that control may be changing hands.
Order blocks
Zones · where institutions entered
The last opposing candle before an impulsive move that broke structure. When price returns to that zone, the unfilled institutional orders left behind often defend it — which is why price reacts there.
Fair value gaps (FVG)
Imbalance · the skipped price
A three-candle pattern where the middle candle moves so hard it leaves a gap between the first and third candle's wicks. Price frequently returns to 'rebalance' the gap before continuing, offering a defined entry zone.
Liquidity sweeps
Stops · the fuel for reversals
Clusters of stop-losses sit above obvious highs and below obvious lows. A fast spike through an equal high that immediately reverses is a sweep — stops filled the large orders, and the real move goes the other way.
Premium & discount
Location · buy low within the leg
Every swing leg splits at its 50% midpoint. SMC entries in an uptrend are only taken in the discount half of the leg — buying premium is how structure traders end up with bad prices on good ideas.