Subject: Re: Abnormal returns right after WW2?
If MAXDD stand for maximum drawdown, it seems odd that each period = 51% precisely

That's the 2008/2009 bear market. Which is in all the posted periods.

BTW, I don't use the typical "drop from highest peak". I use "drop from the highest of the last 52 weeks".

The thing about the statistic "maximum drawdown" is that it was the single worst event that ever happened.

That one week was in the midst of a string of weeks in the -40% to -45% range.