I am just talking about DCA in a long run.

DCA is a passive way to invest in a relatively long period of time.  What you replied is an active managed portfolio, and you have to time the market.  It would be a different topic. Many gurus on this forum have good posts.

 

My post is about DCA in the long run. If you do not cashout, DCA becomes buy and hold. Buy and hold is only good in bull market and bad in all other markets.