Having thought about it a bit more - I'm not sure what motivation I'd have to sell then immediately DCA back in, my position would end up in the same place! If

Having thought about it a bit more - I'm not sure what motivation I'd have to sell then immediately DCA back in, my position would end up in the same place! If at the beginning of 2022, I'd had a crystal ball saying "stocks will crash in March then rebound in December", then I have a motivation: I do want to switch to a stock-light position, hold that for a while, then move back. In that situation I'd be inclined to DCA on the way out in January, as well as DCA back in during December. I want to reduce variance more than I want to increase the expected value.