There are enter and exit trades, enter and hold through (profit giveback or drawdown), and enter and reverse on exit trades. I trade futures, intraday only. I do "a few" reverse on exit trades per day. Most are enter/exit trades.
In my case, the reversing exit is determined when the entry is taken. IOW, a specific strategy that says when x occurs take profits and reverse, there is no "target" per-se. Manage the trade appropriately until. I don't use a stop for a profit taking exit on such a trade. Explaining the strategy would not be of use for you, as it does not involve indicators, but is triggered by the price/volume relationship. In even fewer words... it's one particular piece of the Jack Hershey price/volume teachings... FTT to FTT trading. Applicable to most liquid markets, and for me, used on fast time frames, 5 min or less. Sometimes it's several bars before exiting (or reversing again), sometimes it's only a couple of bars. Sometimes the first bar after entry isn't cooperating the way expected, and exiting and moving on to whatever the next trade is, is appropriate management. That's one the best parts imo about intraday trading... there is another bus coming along in a few minutes, and it doesn't matter which direction it is going.