Your stock hits the limit up and closes at the ceiling. Don't guess whether to stay or leave the next day—just look at one number.

If you're lucky enough to buy a stock that hits the limit up, how will you trade the next day? Will you decisively exit or hold and wait?

Most retail investors choose to exit because they can't judge the trend, but in fact, just one number is enough to determine whether to stay or leave the next day.