Scaling in is a fairly efficient way to increase profits. However you still need to have rigid targets and stick to them. You are also never risking more than 2% (or whatever is your initial amount).
Lets say you have a strategy where you trade 2% and set both SL and TP at 20 pips (just for this example, makes it easy to understand). Your strategy gets you in on breakouts or on trends, whatever, and your strike rate is above 50% so the 1:1 risk return is no problem. You have been happy with the 2% for 20 pips, but you regularly see the market move 40, 50, 60 pips, sometimes more. But you “only” get 20 pips (or +2%) from the move. You want a way to safely scale into the move.
Ok, so instead of just setting a TP of 20 pips, every 20 pips you move the SL from the original trade(s) up by 20 pips and open another trade for 2% with the same 20 pip sl/tp.
So:
After 20 pips, 1 trade up 2%
After 40 pips, 1 trade up 4%, 2nd trade up 2%, total 6%
After 60 pips, 1 trade up 6%, 2nd trade up 4%, 3rd trade up 2%, total 12%
After 80 pips, 1 trade up 8%, 2nd trade up 6%, 3rd trade up 4%, 4th trade up 2% total 20%
However, if the markets move against you and hit a SL then it depends where you are as to whether the trade is in profit or loss:
Open 1 trade
If the market moves against you, trade hits SL for -20 pips. Total PnL -2%
OR
After 20 pips, 1st trade is up 2%. Move SL to b/e.
Open 2nd trade.
If the market moves against you - 1st trade hits b/e, 2nd hits SL for -20 pips. Total PnL -2%
OR
After 40 pips, 1st trade up 4%, 2nd trade up 2%. Move 1st SL to lock in +2%, move 2nd SL to b/e,
Open 3rd trade.
If the Market moves against - 1st trade hits sl for +2%, 2nd hits SL for b/e. 3rd hits Sl for -2%. Total PnL= 0%
OR
After 60 pips, 1st trade up 6%. 2nd Trade up 4%, 3rd trade up 2%. Move 1st SL to lock in +4%, 2nd sl to +2%, move 3rd sl to b/e.
Open 4th Trade
If the Market moves against you by 20 pips. 1st trade hits sl for +4%, 2nd hits SL for +2%. 3rd hits sl for b/e, 4th hits sl for -2%. Total PnL= 4%
After 80 pips close all the trades and take the +20% !!!
NOTE +40 pips is the point at which you are guaranteed to break even. You might close the trades at that point for +6% but if you carry on scaling in, you should aways be in the money and at worst you will break even.
So, by scaling in but sticking to targets you can close out 6% after 40 pips or hang on for 12% after 60 pips (or even 20% after 80 pips)! That said, originally, you were taking 2% after just +20 pips, now you have to get to +40 pips just to guarantee you break even. So, the strategy is more risky than before in that there is a greater chance you will hit your initial SL. But the actual amount of money at risk is only ever 2% (or whatever is the stake).
Further, it is very important that you work out precise SL and TP points with which to set your targets. This just used 20 pip examples, but whatever it is, and whatever amount you stake, whether it be 0.5%, 1% or 2%, you need to calculate the entry and sl’s so that you are only every risking that same stake every time.
Equally, don’t think of the SL’s as exit points. They are there just to cover you incase you are wrong. You should plan to exit according to the strategy and take the profit at defined points. In this example the +40 or +60 pips would be good points. 40 pips in this example would strike me as being the safest point to exit and ensure a tidy profit of +6%.
It is also worth saying, if you are going to trade this, you should do it with an EA to move the stops and open/close the orders automatically. You want to make sure they are moved/placed/closed at the exact right times.
Trading it on something that has big swings is where it works well and can make it very powerful. For example gold and brent regularly move 120-150 pips in a few hours. So taking 40-60 pips might be very achievable (with the right strategy for entry). Alternatively, it doesn’t just suit intraday strategies. Trade it on the daily chart but with a 200 pip sl (of course changing the lot size so you are only ever risking 2%), it works just the same.
Scale in, get out…