和TT/Monkeyboy 唱一下反调，

资产配置和你的goal/风险承受度 关系不大

Really, investing in the field you know/understand/comfortable with is more important than diversification or risk tolerance.

Most success/rich poeple do not diversify and they invest in the field they know.  If you want to depend on diversifying to the field you do not know, you are in deep trouble becasue you could pick a wrong entry point or wrong exit point.

Most poeple on this board are good at the field they are in.  They can make good money in that field.  When they have extra cash on hand, they want to invest.  Why not invest more in the field you are already good at?  Study the leader in that field and find way to invest in that leader or future leader.

I use to believe in diversification,  But no more after 2001 and 2008/2009 stock market crash.  When crash, diversification does not help.  Dow/qqq/S&P gain nothing in 12 years.

Risk tolerance is easy to say and hard to figure out.  

Now, I believe in DCA if I wnat to be more passive.  (many discussion on DCA, no intend to repeat it here.)