I do it and it can drive me nuts. I just transitioned from nearly 100% equities to a 70/30 allocation, and at the same time I deleted my yahoo portfolio.
I'm going to update my tracking spreadsheet quarterly now instead of monthly, with the intent to move to every-6-months.
My thought process is that watching it and tracking it like a hawk is great when the market is going up, but is really going to be a pisser when we are in a bear market.
So I'm trying to transition to a set-it-and-forget-it 70/30, quit looking at it obsessively, and just maybe get some work done.
Sounds good in theory anyway, but in my heart I suspect it probably won't work !!
- John