CDLLADDERBOTTOM
CDLLADDERBOTTOM
Summary
Five-candle bullish reversal pattern: three consecutively lower black candles, a fourth black candle with a non-very-short upper shadow, then a white candle that opens above the prior open and closes above the prior high. Signals a potential bottom reversal. A hit (+100) is a bullish reversal signal, most meaningful after a downtrend.
Notes
- Does not verify the preceding downtrend that this bullish reversal classically assumes.
Inputs
inOpen— Open price of each barinHigh— High price of each barinLow— Low price of each barinClose— Close price of each bar
Outputs
outInteger— +100 on a detected ladder bottom, 0 otherwise. Only ever emits +100 (never -100); inherently bullish
Properties
Numerical Stability: Start-Independent
| Display Flags |
|---|
| ☐ Overlap Input |
| ✅ Independent Y-Axis i |
| ✅ Candlestick i |
Implementation
TA-Lib Definition: cdlladderbottom.c · cdlladderbottom.yaml
| Native | File |
|---|---|
| C | ta_CDLLADDERBOTTOM.c |
| Rust | cdlladderbottom.rs |
| Java | Core_CDLLADDERBOTTOM.java |
TA-Lib is also available for Python, R and more using a wrapper.
Aliases
Ladder Bottom