15-Minute High and Low

“15-Minute High and Low — Intraday Precision Levels”

This indicator automatically plots the previous 15-minute candle’s High and Low on any intraday chart. These two levels are some of the most important reference points for scalpers and intraday momentum traders, often acting as breakout zones, reversal spots, liquidity targets, and micro-range boundaries.

How It Works

The script continuously pulls the most recently completed 15-minute candle (High, Low, Open, Close).

On any intraday timeframe—1s, 5s, 10s, 30s, 1-min, 2-min, 5-min, etc.—you will see two dynamic lines:

Blue Line: Previous 15-minute High

Red Line: Previous 15-minute Low

The levels automatically update at the completion of each 15-minute bar.

Why These Levels Matter

The previous 15-minute range often dictates short-term market structure:

Breakouts:
When price breaks above/below the prior 15-minute levels with volume, it often triggers continuation trades.

Failed Breakouts (Fakeouts):
Rejections at these levels are powerful reversal signals.

Liquidity Pools:
Algorithms often sweep these highs/lows before reversing.

Pullback Entries:
Trend continuation entries often form off retests of these levels.

Perfect For

High-frequency scalpers

1s, 5s, 10s, 30s chart traders

Opening drive traders

Momentum & reversal traders

Futures, stocks, crypto, and forex

Features

Clean overlay lines

Auto-updating 15-minute high and low

Works on any intraday timeframe

Zero lag, zero repaint

Simple, fast, and reliable level detection