I am about a year and a half from retirement (I hope), and am at about 90/10 stocks/bonds. I know I "should" be moving more into bonds to protect my retirement date (as I would simply keep working if stocks tanked before I reached my "number"/date... something that would dismay me a lot).
To make myself willing to do it, I decided to think of it as buying retirement date insurance. But once I did that, I realized the premium for such insurance is really, really high. To "protect" $100,000 by moving it from stocks to bonds, you're paying about $4000 in opportunity costs/likely foregone gains. That is, assuming $100,000 in stocks would earn $7000 in an average year, and bonds would earn more like $3000, the net "loss" from moving to bonds is $4000/year. And that's only to protect $100,000!
Once I thought about it this way, it's getting harder to stuff the genie back into the bottle, cognitively. I can't bear the idea of "paying" a $4000 premium every year (really, more like $32,000 given the asset allocation that the experts recommend you enter retirement with), just to avoid the possibility of having to work an extra year or so in the event of a big market dump right before I retire.
I know I'm thinking about this wrong. Help!