There is an old investing rule that said your percentage in stocks should be your 100 - your age. Most modern financial planners discount that rule, but it always made some sense to me.
Well, I am 70% in cash and the rest in a short play (VIX) that I play everyday...
I cannot afford to lose more than 30%, so that’s my limit.
There was a time when I could afford to lose it all because I could earn it back.
So that’s the rule I use.....I ask myself what I can afford to lose.