Using stops and limits to manage risk
Using limits
Limits are useful for controlling how much you pay or make on a trade. When used properly – often in combination with stops to enforce a particular risk-reward ratio – they’re a very useful tool for your trading.
Using a limit-close
A limit-close order, also known as a take-profit order, lets you decide ahead of time where you want to lock in profits.
If you think a market’s price is going up, your limit order would be above the price you paid to enter the trade. And if you think it’ll go down, you’d place the limit order lower than the entry price.
You can set limit-close orders in the ‘deal’ tab of the deal ticket. Let’s take a look at an example.
Example
You open a short position on XYZ Ltd, trading at 500.50. You sell 10,000 shares, so your position is worth $100 per point of movement.
You can choose to set your limit at a particular monetary target, or a number of points away, using the drop-down next to the ‘limit’ field:
Your profit target on the trade is $2000, so you set a limit-close order at 480.50 – 20 points below current, with each point of movement worth $100. If the market does drop to 80 pence your position will be closed out, and you’ll take the $2000 profit.
Setting a limit-close order gives you greater control over the profit you want to take from any trade. You can use them to manage the ‘reward’ part of your desired risk-to-reward ratio. We’ll look at using limits together with stops in more detail later.
Many traders get so excited when a trade goes in their favour that they exit the position too early. Deciding where you want to take profit before you open a position helps counteract that instinct.
Using a limit-entry
A limit-entry lets you enter a trade automatically at a better price. You’d use this if, for instance, you were bullish on a market but thought it was currently overpriced, or if you were bearish but thought the market was under-priced.
If you’re buying (going long), you’d place your limit-entry lower than the current market price. And if you’re selling (going short), it would be above.
You can place limit-entry orders in the ‘orders’ tab of the deal ticket. As with stop-entries, you’ll know when you place a limit-entry – the execution button will update automatically with the order type.
Example
Let’s say Netflix is currently trading at around $501. You think that the price is going to drop and then rally, so you want to take a position to try and capitalise on this.
However, you only want to enter the trade if it drops as low as $490, which you’ve identified as a key level of support. So you set a limit-entry order to buy at $490.
If the market drops to $490 your limit-entry order will be triggered and your position opened. If the market then rallies as you predicted, you’ll have a profitable position.
So you might use a limit order to open if your analysis indicates that a market will drop before rebounding (if you’re long) or rise before dropping (if you’re short). Essentially, you want to open a trade at that sweet spot of support or resistance before the change in direction.
Things to consider
Like stops, both limit-entry and limit-close orders are subject to slippage if the market gaps through the order you’ve set.
Slippage isn’t always negative, whereby your order gets filled at a worse price than you set. Positive slippage can happen, where your limit is executed at an even better price than you were expecting.
There’s also a possibility that your order won’t ever be executed if the market never reaches your specified level, as it would never be triggered.
When you use a limit to open, you’re placing an order against the current market trend – which is a risk. The market will likely move against you in the shorter term, so you might find that your order is triggered, only for your position to immediately go into loss. Remember to factor that in when you set up your trade to avoid exiting the market impulsively.
Using limits with stops to enforce your risk-reward ratio
Using stops and limits together can give you a balanced risk-to-reward ratio.
If you wanted to trade with a 1:2 risk-to-reward ratio, you’d place your limit order twice as far away from the opening price as you place your stop order. This means you’d only lose half of what you stand to gain.
It’s easy to see your risk-to-reward ratio per position in the platform. You’ll also be able to see your stop and limit levels and the amount of money you’ll win or lose if they’re triggered. Just click on your trade in the ‘positions’ tab, and take a look at its chart.
To change your stop or limit, just drag them to where you need them to be. Your risk-reward ratio will update automatically. You can set stops or limits on an open position like this, too.
Example
Let’s say you open a long position on ABC PLC at 1476.60, and you set your limit order at 1626.60, 150 points away from your entry level.
To achieve a 1:2 risk-to-reward ratio, you’d set your stop order 75 points away from your entry level – at 1401.60.
If your trade becomes profitable, you can improve this risk-to-reward ratio by manually moving your stop (provided you haven’t set a trailing stop) this way:
The market moves in your favour by 50 points to 1526.60, and you move your stop up by the same amount to 1451.60. This improves your risk-to-reward ratio to 1:6.
It rises by another 50 points to 1576.60, and again you move your stop up by the same amount so it’s at 1501.60.
You’ve essentially locked in a profit of 25 points as your stop is above your entry level, and your limit is now closer to the current market price (at 50 points away). This means your limit now has a higher probability of being triggered.
However, the market then reverses direction and triggers your new stop level without ever reaching your 1626.60 limit. Regardless of this, however, you’ve still capitalised on the market trending in your favour – locking in profit by actively moving your stop.
In this scenario, you may feel you could’ve traded better by closing at the most profitable point. But without the benefit of hindsight, you’ve executed a strategy that saw you realise a profit, even when the market turned against you.
Question
Imagine you have a short position on ABC plc, opened at 400 pence. You see that the price has fallen to 385 pence, and you’re tempted to close your position and take the profit, but your analysis suggests it will drop further – and that if it drops as far 378 pence the trend might reverse. So you set a limit order to close your position at 378 pence. The price falls to 376, then begins to rise again. What happens to your trade?Correct
Incorrect
Your limit order is triggered at 378 pence as the market through this level, and you take the profit. Remember, this does mean you won’t be able to take advantage of any further movement in your favour.Lesson summary
- Limit orders can be used to open and close positions, and give you more control over how much you could make on a position
- Limit orders can be subject to positive slippage – meaning your position could be closed at a better price than you expected
- You should be aware that limit orders may not be triggered if the market doesn’t move as you predicted
- Use stops and limits together to manage your risk-to-reward ratio