Donchian Channels
TrendOverlays priceA corridor drawn from the highest high and lowest low of the last N bars.
What it looks like
Drawn by running the real calculation over one sample series. Open a symbol and it is recalculated on that symbol's bars.
How to read it
The upper line is the period high, the lower one the period low. Touching the upper line is by definition a new high for that window, so the widening and narrowing of the corridor is itself a volatility story.
Where it misleads
The lines move in steps — they drop the day an old extreme leaves the window.
Default settings
You can change these on the chart. These are the values it starts with.
In SQMATE
One tap to add
Open a symbol, tap the name in the indicator list and it is drawn straight away. You can stack several copies of the same indicator with different settings.
Recalculated per timeframe
Switch between minute, hourly, daily, weekly or monthly bars and it is recalculated on that timeframe. The maths runs over every bar loaded, so zooming never moves the line.
Use it as a search condition
Some indicators can also be used as an axis when searching for symbols — for example, keeping only symbols above a given reading, scanned every night.
Related indicators
- Parabolic SARDots placed above or below the bars to mark which way the run is going.
- SupertrendA stair-step line hung a multiple of the average range away from price, with a side.
- Zig ZagA zig-zag line that connects only the swings larger than a set percentage.
- Williams FractalsA marker on every bar that is higher or lower than the few bars on both sides.
- Williams AlligatorThree shifted moving averages that show whether the market is asleep or awake.
- Price ChannelA corridor of the prior N bars' highs and lows, shifted one bar.
Every indicator is an observation computed from past bars. It does not tell you future prices and it is not investment advice.