I disagree. There are objective ways. And scaling into a winning position can just as quickly turn into a bigger losing position. scaling in to a winning position does not necessarily mean you have the direction right. If you don't have the general direction right then it can whip back into the correct direction and you can find yourself holding a growing loss or you can exit at BE and suddenly find yourself missing the trade altogether because you just got whipsawed out (and most traders cannot mentally enter right off the bat again in the opposite direction they were just in or even in the same direction they just got whipsawed out of).There is no objective way to know a PB is not a reversal. So continued buying in as a PB falls is gambling. Buying in on renewed strength is a viable trade as long as price has not fallen so far as to break down the bullish set-up in the first place. But either way, the important feature is the set-up, not the numerical value of the price, nor the unrealised profit potential / loss potential.
So scaling in to a winning position sounds good but is NO guarantee that it is the best thing to do. Especially, when it comes to intraday trading. Maybe scaling in to winning positions makes more sense for longterm investing.
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