Evening Star (CDLEVENINGSTAR)

Summary

A three-candle bearish reversal pattern: a long white candle, a short-bodied star gapping up, then a black candle closing well down into the first candle's body. A hit signals a bearish reversal (most significant in an uptrend).

Notes

Does not verify the preceding uptrend the bearish reversal classically assumes.
The third candle only needs a body longer than short, not the full long body some definitions require.

Inputs

inOpen — Open price of each bar
inHigh — High price of each bar
inLow — Low price of each bar
inClose — Close price of each bar

Outputs

outInteger — -100 when detected (always bearish), 0 otherwise. Never emits +100

Output Values

Value	Meaning
-100	Evening Star pattern detected: bearish
0	No pattern

Parameters

Parameter	Type	Default	Accepted values	Description
`optInPenetration`	real	0.3	≥ 0	Fraction of the 1st candle's real body the 3rd close must penetrate below the 1st close; larger requires deeper penetration

Properties

Numerical Stability: Start-Independent


☐ Overlap Input
✅ Independent Y-Axis i
✅ Candlestick i
☐ Can Output NaN or ±Inf
☐ Identity at Period 1

Implementation

TA-Lib Definition: cdleveningstar.c · cdleveningstar.yaml

Native	File
C	`ta_CDLEVENINGSTAR.c`
Rust	`cdleveningstar.rs`
Java	`Core_CDLEVENINGSTAR.java`

TA-Lib is also available for Python, R and more using a wrapper.

Aliases

Evening Star