Matching Low (CDLMATCHINGLOW)

Summary

A two-candle pattern of two consecutive black (bearish) candles with equal closes (within a tolerance). Treated as a bullish reversal signal. A hit signals a potential bullish reversal (shared support close after two down candles).

Formula

Two candles i-1, i. Candle i-1: black (close<open). Candle i: black (close<open). Equal closes: close[i-1]-E <= close[i] <= close[i-1]+E, where E = the Equal average. No shadow, body-size, or gap conditions are checked.

Notes

The bullish-reversal reading assumes a prior downtrend, which is not verified.
Although classically read as a bullish reversal (and TA-Lib only emits +100), Bulkowski's testing found it actually acts as a bearish continuation 61% of the time — even so, it still ranks a strong 8th of 103 patterns for overall performance. (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 when the pattern is present, 0 otherwise. Only +100 is ever emitted (matching low is always bullish); never -100

Output Values

Value	Meaning
0	No pattern
100	Matching Low detected — bullish reversal signal (shared support close after two black candles)

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: cdlmatchinglow.c · cdlmatchinglow.yaml

Native	File
C	`ta_CDLMATCHINGLOW.c`
Rust	`cdlmatchinglow.rs`
Java	`Core_CDLMATCHINGLOW.java`

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

Aliases

Matching Low