OBV Shadows

Overlay shows difference between OBV and OBV's moving average as green and red dos above and below cendles.
Designed to fast divergence detection.
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study(title="OBV Shadow", shorttitle="OBVShad", overlay=true)
window_len = input(28, defval=28, minval=1, title='Window Lenght')
obv_len = input(14, defval=14, minval=1, title='OBV smooth Lenght')
price_spread = stdev(high-low, window_len)

obv = cum(change(close) > 0 ? volume : change(close) < 0 ? -volume : 0*volume)
smooth = sma(obv, obv_len)
obv_spread = stdev(obv - smooth, window_len)
shadow = (obv - smooth) / obv_spread * price_spread

out = shadow > 0 ? high + shadow : low + shadow
color = shadow > 0 ? green : red
plot(out, style=cross, color=color)
// out = close > close[1] ? shadow : -shadow
// plotarrow(out, colorup=green, colordown=red, transp=50, title='Volume Shadow')
I've tried OBV against price too. Does your code lock it against scale changes?

You have a couple misspellings in the code. *Length
IldarAkhmetgaleev MarvinMartian
it uses standart deviation to scale valeus, so it shows releative values, not absolute.
seems to work!
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