Two Crows (CDL2CROWS)

Summary

Three-candle bearish reversal pattern: a long white candle, then a black candle gapping up, then a black candle that opens inside the second body and closes down inside the first white body. A hit (-100) signals a bearish reversal; significant in an uptrend, which this function does not verify.

Notes

Does not verify the prior uptrend the pattern classically assumes for significance.
Bulkowski's testing found this reverses bearishly only 54% of the time — "near random" — despite the pattern's classic always-bearish label; the breakout direction cannot be predicted with any real accuracy. (thepatternsite.com)

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 on a detected pattern (always bearish), 0 otherwise. Never emits +100

Output Values

Value	Meaning
-100	Two Crows pattern detected: bearish
0	No pattern

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: cdl2crows.c · cdl2crows.yaml

Native	File
C	`ta_CDL2CROWS.c`
Rust	`cdl2crows.rs`
Java	`Core_CDL2CROWS.java`

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

Aliases

Two Crows