Woohoo! 401k looking good today. 1 year market gain, around 15% after today. Around 9k increase in last 4 weeks. Market timing does pay off.

I'd sell and convert back to cash on any market weakness with perceived major downward movement. Better to save what's been gained, than to chance it for possible upward move.

One exception to above is if market makes surprise big downward move. Don't want to sell near the bottom.