Library term·Chart patterns
Double Top / Double Bottom
Two consecutive peaks (or troughs) at roughly the same price, separated by a moderate retrace. Confirms when the connecting valley/peak breaks.
Authored by·Editorially reviewed
Onur Erkan YıldızFounder, Financial Engineer · CMB-licensed
Higher education in Financial Engineering and Money & Capital Markets. SPK (Turkey CMB) licence. 16 years across institutional markets, research, and quant-driven analytics.
How it forms
The market tests a level twice but fails to push through. Each rejection is a liquidity event: stop-orders above (or below) get hunted, then large players reject. The break of the intervening pivot — the "neckline" of the pattern — confirms the regime change.Trade plan
- Entry: close beyond the neckline + optional retest.
- Stop: above the second peak (double top) or below the second trough (double bottom).
- Target: measured move equals the height of the pattern projected from the break.
Quality filters
- Time between the two peaks/troughs should be at least 5–10 bars on the working timeframe.
- Volume should taper on the second peak/trough and expand on the break.
- Confluence with a higher-timeframe level (200 EMA, prior swing) doubles the success rate in our backtests.
Why it works
Double tops and bottoms encode the failure of trend-followers to make a new high (or low). Once the second test fails, position holders capitulate, fueling the reversal move.
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Educational content authored by our team — informational only, not investment advice.
