Being retired I will shift things around but it's more rebalancing.
Despite I say I won't market time, I am close to moving some from my Stable Value fund to an index fund that tracks the S&P 500 in my 401k, I kept some money in the 401k when I retired prior to 59 1/2 and never moved it. Yeah this would be a market timing move, looking for about 1250 or 1260 on the S&P 500 and I'd leave it there until mid/3rd week in July then move it back to the Stable Value fund. If it goes lower to say 1210 I'd move some more. Seems we are over sold, time for a bounce, earnings reports out in early July, bonds yielding nothing with nav increases with yield increases that are due one day but it is summer and I suspect July-October will be a dangerous time to try and time anything.
If I am wrong, buy and things go down and stay there I can wait until they recover. I am not moving a lot, maybe changing from say 35/65 to 40/60 or 50/50 at the most. While I try to stay the course I feel like gambling just a little, it's an acceptable risk, not like going to 60/40 or 70/30!