Close, High or Low

Hi Optuma team,

you have on Twitter published a screen shot of the performance of the S&P 500 sectors (…https://twitter.com/Optuma/status/1405152276843536390).

What I want to know is whether you use for the calculation of the drawdown the 52-week highest high to the 52-week lowest low data or do you use the
52-week highest close to the 52-week lowest close data.

This is also an issue for me, how to calculate the 52-week high and the 52-week low.

What is the common way: Using for the 52-week high the highest high in the last 52 weeks or the highest close in the last 52-week?

And vs. should I use for the 52-week low the lowest low in the last 52 weeks or the lowest close in the last 52-week?

Thanks
Thomas