//@version=6
indicator("IMG 31 — Daily Volume Context", overlay=false)
// Daily comparison only; this is NOT time-of-day normalized intraday volume.
if not timeframe.isdaily or timeframe.multiplier != 1
    runtime.error("Use a one-day chart.")
float baseline = ta.sma(volume[1], 20)
// SMA skips na values; explicitly require 20 consecutive valid prior bars.
bool completeWindow = ta.sma(na(volume[1]) ? 0.0 : 1.0, 20) == 1.0
float ratio = barstate.isconfirmed and completeWindow and not na(volume) and baseline > 0 ? volume / baseline : na
float locationFraction = barstate.isconfirmed and high > low ? (close-low)/(high-low) : na
plot(ratio, "Volume / prior 20 daily bars", color=color.black, style=plot.style_columns)
hline(1, "Baseline", color=color.gray)
plot(locationFraction, "Close location 0 to 1", display=display.data_window)
plot(completeWindow ? baseline : na, "Prior 20-bar volume mean", display=display.data_window)