Depends on who does the comparison. And what is important to them. The Microsoft investor might say "I'm fine with the price going up and down a bit in the shor

Depends on who does the comparison. And what is important to them. The Microsoft investor might say "I'm fine with the price going up and down a bit in the short term. Reducing that is not worth it for me to miss out on 50% of the ROI". If you say Berkshire's performance is significantly exceptional when including those aspects in a combined performance indicator, then it is up to you to show that.