Financial terms, explained from first principles.
60+ entries across markets, macro, options, crypto, quant and behavioral finance - written for people who actually trade.
B
Break of structure (BOS)
Price closing beyond a prior swing high (uptrend continuation) or swing low (downtrend continuation). Confirms the existing trend.
Breaker block
An order block that has been broken (price closed through it in the opposite direction). On retest from the other side, can act as a 'breaker' level.
Buy-side / sell-side liquidity
Stops located ABOVE current price = buy-side liquidity (triggers buying when hit). Stops BELOW = sell-side liquidity (triggers selling). SMC terminology for stop pools.
C
Change of character (CHoCH)
Price closing beyond the prior counter-trend swing — signals trend REVERSAL. The first structural signal of a new direction.
Composite operator
Wyckoff's metaphor for the aggregated institutional flow that 'plays' the market. Treats all institutional behavior as if one trader controlling supply and demand.
E
Effort vs result
Wyckoff principle comparing volume (effort) to price movement (result). Divergences signal supply/demand imbalances.
Equal highs / equal lows (EQH / EQL)
Two or more swing highs at the same level (EQH) or swing lows at the same level (EQL). Concentrated stop liquidity — primary sweep targets.
I
ICT killzone
Specific time windows where ICT theory expects highest-probability institutional moves. London open, NY open, London close, NY close.
Inducement
Minor swing high/low that 'induces' retail traders to enter prematurely, providing liquidity that institutional flow then sweeps before the real move.
S
Sign of strength (SOS)
Strong directional move out of a Wyckoff accumulation range, on expanding volume. Confirms accumulation complete and markup beginning.
Sign of weakness (SOW)
Strong directional move out of a Wyckoff distribution range to the downside, on expanding volume. Confirms distribution complete and markdown beginning.
Smart money trap
A false breakout or false structural break designed to trap retail in the wrong direction before the real move develops. Highest-conviction reversal signal.
Spring
False breakdown below an accumulation range low, immediately reversed. The institutional liquidity grab before markup begins.
W
Wyckoff accumulation
Multi-phase basing process where 'smart money' accumulates a position before a markup phase. Five phases: PS, SC, AR, ST, SOS.
Wyckoff distribution
Multi-phase topping process where 'smart money' distributes a position before a markdown phase. Mirror of accumulation. Phases: PSY, BC, AR, ST, SOW, UTAD.
Wyckoff schematic (5 phases)
Visual framework showing the five phases of accumulation or distribution sequentially. The standard template for identifying Wyckoff structures.