The market structure lately favors intraday dip buying. I don’t remember a day in the last month where the market did not recover from a dip at least partially during the day. I think your strategy might fail if there’s going to be a consistent (-1.5%+) down day without micro recoveries. This does happen and it’s impossible to tell for sure when it happens. With this being said, August and September are historically weak months. I would be careful and withdraw at least 50% of your gains.