Execution and pricing technology

Our technology is engineered for speed, stability and better prices  giving you the edge in a competitive environment.

How we provide fast, reliable execution

Our systems are built to cope with a huge number of trades very quickly:

  • 22 million orders accepted (Apr-June 2016)

And our robust platforms are engineered to cope with large volumes of traffic:

  • 42,040 unique daily web users (August 2016)
  • 52,754 unique daily mobile users (August 2016) 

How we give you the best price

Markets can move in milliseconds, meaning the price you click to trade on may have changed by the time your order reaches us.

IG Bank's order management system will never fill you at a level worse than the one you requested – however your order may be rejected.

  • A symmetrical tolerance level is set a certain distance either side of your requested price – if the market stays within this range by the time we receive your order, your order will be executed at the level you requested. If you submit a market order it will be filled in the size and price available when we receive it.

Should the price move outside this range, we will do one of two things:

  • If the market moves to a better level for you, our price improvement technology will ensure you receive it. We've saved our clients over £55 million in this way since January 2013.
  • If the price moves beyond our tolerance in the opposite direction, we'll reject the order and ask you to resubmit at the current level.

We do these checks to ensure the price your order is filled at is consistent with the current price that is available to our clients.

Two new ways to trade

In August we will offer you more control over your order execution, with partial fills and points through current. These new features will be available in the dealing platform and the latest version of the IG mobile trading app. For full terms see our customer agreement page.

Partial fills

We are the first in the industry to offer clients partial fills on their online trades. If you are a client who trades in large sizes you will be able to accept a partial fill to increase your chance of a successful execution.

If you choose to use this feature, IG will only ever partially fill your order as an alternative to an outright rejection. IG will never partially fill your order as an alternative to filling it in its entirety. So if you trade in a size so large that we cannot fill your entire order rather than reject your entire order IG will be able to fill you in the maximum size possible. 

If you have selected the partial fill feature, the next time you trade through the same device it will be retained as your default option. It will, however, need to be activated independently on different devices e.g. going from your desktop trading platform to using your account through an app.If you have selected the partial fill feature, the next time you trade through the same device it will be retained as your default option. It will, however, need to be activated independently on different devices for example going from your desktop trading platform to using your account through an app.


Are partial fills for me?
Partial fills may be for you if you are a client who wants as much of your order filled as possible at the current price, and do not want a size rejection just because IG cannot fill the entire order.


IG’s current Swiss Blue-Chip cash price is 938.2 9390.2. You want to buy 200 contracts at 9390.2, but you are worried your order may be size rejected as it is so big.

You submit an order to buy 200 contracts at 9390.2, and select ‘accept partial fill’ on the deal ticket

IG tries to fill you in the whole 200 contracts, but as the order is so big you receive a partial fill in 170 contracts. If you had not ‘accepted partial fill’ your entire order would have been rejected. The remaining part of your order (30 contracts) will be cancelled.

Points through current

Points through current will give you even more control of your execution by allowing you to trade through the current IG price. This new feature will reduce your chance of a price rejection in volatile market conditions, and increase your likelihood of successful execution when you are trading in large sizes.

While IG will still fill your order at the best possible price, you can rest assured that, like partials, the chance of a successful execution is increased when using ‘points through current.

Is points through current for me?
Points through current may be for you if you are are a client who wants to minimise the chance of a price rejection due to volatile markets.


IG’s current Swiss Blue-Chip cash price is 9387.2 9390.2, but the market is very volatile and you want to reduce your chance of getting a price rejection when you buy 10 contracts.

You submit an order to buy 10 contracts up to 2 points through the current price. You are telling IG you are willing to pay up to 9392.2 (9390.2 + 2) to reduce your chance of a price rejection as you know the market is volatile. When IG receives your order our Swiss Blue-Chip cash price has gone down 1 point to 9386.2 9389.2 and you get filled in 10 contracts at 9389.2.

How we source the best prices

We source our prices from a large number of venues to make sure we give you the best price we can:

  • Our forex and some other market prices are sourced from top global banks and exchanges
  • We use primary exchanges like the SIX Swiss Exchange and our multi-venue technology to source shares prices from Chi-X Europe and other leading exchanges, including BATS.
  • This means you get greater liquidity and can access the best prices from around the globe, and it means we can continue to quote even if an exchange goes down
  • For some illiquid shares we use market-maker prices
  • We make our own prices for various markets and for out-of-hours markets

Which prices are live?

The majority of our prices are live for active clients.

For equity markets, we offer four different types of price feed:

•  Delayed prices
15 or 20 minutes behind the exchange price. Free of charge

•  Derived prices
Real-time prices created from the raw data of one or more exchanges. Free of charge

•  Level 1
Real-time prices from the top level of the exchange order book. Charges may apply if you upgrade to this data feed

•  Level 2
Real time prices from the top five levels of the exchange order book. Charges may apply if you upgrade to this data feed

We display delayed prices by default on all equity markets, unless we can offer another free data option, such as pricing from multilateral trading facilities (MTFs) or derived prices.

You can see raw exchange prices if you upgrade your data feeds or use our DMA platform. Upgrading does incur a fee from any exchange you subscribe to. 

Please note that execution is always against the true exchange price, and will be at the best price that we can source from multiple trading venues. 

You can get access to ProRealTime charts at no extra cost if you transact at least four times in a given month. However, if you don't meet this requirement, or your trading activity is of extremely low value, then a CHF45 per month fee will apply on the last day of every calendar month.



DMA pricing technology

  • Best possible prices due to aggregated prices from multiple exchanges
  • Better execution thanks to increased liquidity
  • Technology that automatically hunts down the optimum prices
  • Free live price feeds from MTFs

How does it work?

When you are trading share CFDs and you click on one of the prices in our DMA platforms, the smart order routing technology immediately routes your order to the relevant venue. By routing your order across multiple order books it's more likely that your order will be filled, but you will only ever be charged one commission per order.

If your requested size and price is not available, your order will be routed to the primary exchange, where the greatest level of liquidity is generally available.

More about shares DMA

MTF lit books

Multilateral Trading Facilities (MTFs) provide visible order books in the same way primary exchanges do, so you can see the price and size of all orders and judge where you want to place yours. We combine these MTF lit books and the primary exchange order book to display a single, aggregated order book.

If you are using our L2 Dealer platform, you can view the individual order books for each exchange and MTF.

Dark pools

Our technology also connects you to the dark pools provided by MTFs like Chi-X Australia, Delta or BATS Europe’s Dark Pool. These are orders not displayed on the lit books but are available for you to trade against. Dark liquidity pools are often used by institutional investors who do not wish to reveal the price, size and origin of their orders.

This means that as well as the liquidity visible on the lit order books, trading share CFDs with IG gives you access to the non-displayed liquidity found in the dark pools. This means you can take advantage of even greater levels of liquidity, increasing the likelihood of your orders being filled and the potential for better prices.

Better prices

Previously, MTF lit and dark liquidity was only available to large institutional investors; we enable all CFD traders to access these new venues through our DMA trading solutions.


All our platforms use top-level web security, so you can trade with confidence.

We utilise 256-bit SSL (Secure Sockets Layer) encryption, which is the industry standard for online financial transactions, from PayPal and eBay to major banking institutions.

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