Thanks Glen,
A good catch! I find too that the ratio StdDev(ATR5,50)/StdDev(ATR5,200) is <5 for all stocks with the liquidity and price criteria.
I put the ratio in a charting package and looking at many charts of popular growth stocks I didn’t see the ratio go >1.9
A good learning to not take shortcuts and chart stuff to be honest. I find it hard to code something without look at a bunch of chart examples where it makes sense to me.