Harami Pattern (CDLHARAMI)

Summary

Two-candle pattern: a long real body followed by a short real body contained within the first candle's real body. A reversal signal whose direction is the opposite of the first candle's color.

Notes

Does not verify the prior trend (downtrend for bullish, uptrend for bearish) that the reversal signal assumes.
Bulkowski's testing found the bearish Harami actually acts as a bullish CONTINUATION 53% of the time — more often than it reverses the prior uptrend — rating the pattern "near random" overall (rank 72 of 103). (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/+80 when the long 1st candle is black (bullish), -100/-80 when it is white (bearish), 0 otherwise; 80 when the two real bodies share an end, 100 when the 1st body strictly overhangs both ends of the 2nd

Output Values

Value	Meaning
-100	Bearish Harami: a small real body forms inside the prior long white candle — momentum stalling after an advance
-80	Bearish Harami, weaker variant: the small body's edge lines up exactly with one end of the long white candle
0	No pattern
80	Bullish Harami, weaker variant: the small body's edge lines up exactly with one end of the long black candle
100	Bullish Harami: a small real body forms inside the prior long black candle — momentum stalling after a decline

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: cdlharami.c · cdlharami.yaml

Native	File
C	`ta_CDLHARAMI.c`
Rust	`cdlharami.rs`
Java	`Core_CDLHARAMI.java`

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

Aliases

Harami, Harami Pattern