Avg Candle Size (Ticks) – Last 9 Closed Bars

What it does:

Shows the average candle size in ticks for the last N closed bars (defaults to 9). I built this so I can glance at a 5-min chart and instantly know the typical bar size in ticks, updating only after each bar closes (no intrabar wiggle).

How it works:

Measures each bar’s full range (High–Low), not ATR and not candle body.
Averages the last N closed bars, converts to ticks using syminfo.mintick.
Displays a simple line plus a small readout (e.g., “32 ticks”).

Why I built it:
Gives me a realistic sense of current volatility in ticks so I can size stops/targets quickly without doing mental math.

Extras:

Lookback is configurable (default 9).
Optional rounding (floor/nearest/ceil).
Works on any timeframe/instrument that has a defined tick size.

If you want it to match ATR exactly (in ticks), swap the range calc for ta.atr(len) / syminfo.mintick