S&P 500 6 month return is almost 9%. My 6th month return is about 46%. How do you gauge if the differential is luck or strategy? That is what I am trying to figure out.
That's easy. Compare the difference when there's a real pullback. What's your negative alpha vs your positive alpha in the upside?
In other words - 46/9= 400% alpha, 100% beta.
If the market drops 5%, do you lose 100% beta and more than 400% alpha? Or do you lose less?
I'd try to control the downside alpha as close to zero as possible, meaning I lose beta to the downside and win alpha to the upside.
I hope that makes sense.