Liquidity and sweeps: why price pokes past highs and lows

Orders beyond the obvious

In SMC, "liquidity" has a narrower meaning than in the order book lesson: resting orders just beyond a swing high or low. SMC assumes that above a swing high sit the stop-losses of short positions (which buy when hit) and buy orders of traders waiting for a breakout — buy-side liquidity. Below a swing low sit the stop-losses of long positions and sell orders for a breakdown — sell-side liquidity.

That orders gather near obvious prices is partly documented: a study of a bank's currency orders, published by the Federal Reserve Bank of New York, found that their prices cluster at round numbers, and that stop-loss orders cluster differently from take-profit orders. Several swing highs at almost the same price — "equal highs" — make an even more obvious place for such orders; the terminal marks highs within 0.25 ATR of each other as equal.

The sweep

A sweep is a candle that trades through a swing — triggering those orders — and closes back on the near side. By the rule used here: a candle goes above the last swing high that price has not yet traded through, but opens and closes below it (or the mirror image at a swing low). The terminal applies the same test to its liquidity pools — clusters of swing highs or lows — so this lesson shows the simplest case, a single swing. The SMC story is that large traders used the triggered orders to fill their own positions in the opposite direction, so price should now turn.

Sweep — two real sweeps of a 4-hour swing high in BTC. At 00:00 UTC on 28 August 2026 a candle traded to 81,479, above the swing high of 81,273, and closed at 79,810; twelve candles later price was 2.1% lower, and on 2 September it reached 76,264. At 00:00 UTC on 21 September a candle traded to 82,100, above the swing high of 81,951, and closed at 81,425; the same day price rose to 87,396, and twelve candles later it was 6.5% higher.

How often did price turn?

Check the claim — after a sweep, price had turned against the wick 12 candles later in 26 of 63 cases on BTC/USDT 4-hour candles (41%), against about 50% for any candle; 47 of 98 on hourly candles (48%); 18 of 30 on daily candles (60%), a small sample.

On the 4-hour and hourly charts, a sweep was followed by a turn no more often than after any candle. The daily chart shows 60%, but on 30 cases: six fewer turns and it would be 40%.

Check yourself · 1 of 3Where does SMC place buy-side liquidity?

AJust above swing highs, where short stops and breakout buy orders waitBJust below swing lowsCAt the point of control

Show the answer

Stop-losses of shorts are buy orders; they and breakout buys rest above the highs.

Check yourself · 2 of 3A candle trades above the last swing high and closes above it by more than 0.3 ATR. What is it?

AA sweepBA break of structure (or a ChoCH, against a downtrend)CEqual highs

Show the answer

A sweep needs the close back below the high. A close beyond it is a break.

Check yourself · 3 of 3On BTC's 4-hour chart, how often did price turn within 12 candles after a sweep?

A41% of the time — not more than after any candleBAlmost alwaysCNever

Show the answer

26 of 63 sweeps, against about 50% for any candle.

Takeaways

1. SMC liquidity: orders resting beyond swing highs (buy-side) and lows (sell-side).
2. A sweep trades through a swing and closes back inside; a break closes beyond it.
3. Two sweeps by the same rule can be followed by opposite moves.
4. On BTC's 4-hour and hourly charts, price turned after a sweep no more often than after any candle.

Open BTC in the terminal — liquidity (BSL/SSL) and equal highs and lows are under the layer-group button above the chart

Further reading

• Osler, Currency Orders and Exchange-Rate Dynamics (orders cluster at round numbers) — Federal Reserve Bank of New York Staff Report 125 ↗
• Kline (candle) data, where this lesson's candles come from — Binance Spot API docs ↗