Can't afford to leave it? There are times when you can't afford to take it out. Sitting for a longer time may bring much more significant gains. This is Swing trading v.s. day trading styles. Of course each is good for the individual that chooses it.
My point is, if in your estimate a run is, by all indications, beginning, that's when the critical decision to start "flipping" in and out can lose you much more money than the money you won.
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