Cookies Policy

LAST UPDATED: 1 February 2021

Cookies statement

Your privacy and trust are important to us. This Statement explains how LCH Limited and the London Stock Exchange Group of companies (“LSEG", we”, “us” or “our”) uses cookies on (the "Website"). The information set out in this Statement is provided in addition to, and should be read alongside, our Privacy Statement.

Cookies are small text files that are placed on your computer or mobile device by websites that you visit. They are widely used in order to make websites work, or work more efficiently, as well as to provide web services and functionalities for users. For example, they enable you to improve your experience on the Website and enable the Website to remember your actions and preferences (such as login, language, font size and other display preferences) over a period of time, so you don’t have to keep re-entering them whenever you come back to the Website or browse from one page to another.

You do not need to have cookies turned on to visit most of the Website. However, having cookies switched on should allow for a smoother and more tailored browsing experience, and is required for certain parts of the Website's functionality. In the majority of cases, a cookie does not provide us with any personal information.

Types of Cookies

Cookies may be either "persistent" cookies or "session" cookies. The Website uses both persistent and session cookies.

A persistent cookie consists of a text file sent by a web server to a web browser, which allows us to collect and analyze (on an anonymous basis) traffic and use of the Website, monitor the system and improve operating performance, for example, store your preferences to enhance your subsequent visits. It will not be automatically deleted when the browser is closed but is stored by the browser and will remain valid until its set expiry date (unless deleted by the user before the expiry date).

A session cookie is essential to ensure the correct functioning of the Website and is used to manage registration/login and access to reserved features. It is stored temporarily during a browsing session will expire at the end of the user session, when the web browser is closed. This Website uses both persistent and session cookies.

A complete list of the cookies we use is set out in the table at the end of this Statement. This list (together with the rest of this Statement) is subject to change from time to time.

Other Tracking Technologies

Clear GIFs, pixel tags and other technologies. Clear GIFs are tiny graphics with a unique identifier, similar in function to cookies. In contrast to cookies, which are stored on your computer's hard drive, clear GIFs are embedded invisibly on web pages. We may use clear GIFs (a.k.a. web beacons, web bugs or pixel tags), in connection with our Website and Services to, among other things, track the activities of Website visitors and users, help us manage content, and compile statistics about Website usage. We and our third-party service providers also use clear GIFs in HTML emails to our customers, to help us track email response rates, identify when our emails are viewed, and track whether our emails are forwarded.

Local Storage Objects. We may use Flash Local Storage Objects ("Flash LSOs") to store your Website preferences and to personalize your visit. Flash LSOs are different from browser cookies because of the amount and type of data stored. Typically, you cannot control, delete, or disable the acceptance of Flash LSOs through your web browser. For more information on Flash LSOs, or to learn how to manage your settings for Flash LSOs, go to the Adobe Flash Player Help Page, choose "Global Storage Settings Panel" and follow the instructions. To see the Flash LSOs currently on your computer, choose "Website Storage Settings Panel" and follow the instructions to review and, if you choose, to delete any specific Flash LSO.

Third Party Ad Networks. We use third parties such as network advertisers to serve advertisements on our Website, third-party websites or other media (e.g., social networking platforms). This enables us and these third parties to target advertisements to you for products and services in which you might be interested. Third-party ad network providers, advertisers, sponsors and/or traffic measurement services may use cookies, JavaScript, web beacons (including clear GIFs), Flash LSOs and other tracking technologies to measure the effectiveness of their ads and to personalise advertising content to you. These third-party cookies and other technologies are governed by each third party’s specific privacy or cookies statement, not this one.

Our Use of Cookies

We do not automatically capture or store personal information from browsers to the Website, other than to log your IP address (which in certain circumstances will be your personal data) and session information such as the duration of the visit to our site and the nature of the browser used. This information is used only for administration of the Website and in the compilation of statistics which we use for analysis in order to improve the Website and understand in general terms who uses our Website.

Cookies may be required to allow you to access and participate in certain areas of the Website. Once you have closed your browser, this type of cookie is deactivated. Like all cookies, you are able to remove or block particular cookies at any time (see below).

Your Cookie Choices

The majority of browsers will allow you to alter the settings used for cookies and to disable and enable them as you require.

You can reject all cookies (except strictly necessary cookies) in case you prefer not to receive them, and you can have your computer warn you whenever cookies are being used. You can delete the cookies that are already on your computer and you can set your browser to prevent them from being placed. Disabling cookies may, however, prevent some web services (including on this Website) from working correctly. Please be aware that when you have set your computer to reject cookies, it can limit the functionality of the Website and it is possible then that you will not have access to some of the features on the Website.

To disable cookies, or to receive a warning whenever cookies are being used, you have to adjust your browser settings. You can adjust your browser settings to delete certain cookies. Visit the "help" section of your browser for how to manage your cookie settings, or follow the links below:

For further general information on cookies and more detailed advice on how to disable and enable them please go to  or


Below is a list of cookies set on the Website and the purpose of each:




This cookie allows you to set a service landing page as your homepage


This cookie is used to save the disclaimer preference for accepting the OTC date range criteria when viewing OTC data volumes


Login cookie - this is used to allow you to sign in to the Website


Security token passed to our Portfolio service


If you ticked "Remember Me" when you signed in, this cookie will remain on your computer until you sign out


This cookie is used to record if a user has read the notice and accepted the use of cookies on the website


This cookie is used to record the user status selected on the RNS declaration page - displayed when accessing announcements and not logged on to the website

NedStat (ComScore) Analytics



This is used to collect information about how visitors use our site. The cookies collect information in an anonymous form, including the number of visitors to the site, where visitors have come to the site from and the pages they visited.

Click here for an overview of privacy at ComScore


This is a unique identifier given to each computer to allow log analysis to determine the number of unique users for various parts of the website. Data is only used in aggregate.


Used with the s1 cookie to identify user sessions on the website. Data is only used in aggregate.


Used to confirm that your browser is able to accept cookies.




This cookie contains a unique randomly-generated value that enables the Platform to distinguish browsers and devices. It is matched against information – such as advertising interest segments and histories of ads shown in the browser or device – provided by clients or other third parties. This information is used by clients to select advertisements for delivery, and to measure the performance of, and attribute payment for, those advertisements. In addition, to enable clients to use non-PII they collect outside the Platform or acquire from other third parties, this cookie is sometimes matched to clients’ or other third parties’ cookies that contain such non-PII.


The sess cookie contains a single non-unique value: “1”. It is used to test whether a browser is configured to accept cookies.


The icu cookie is used to select ads and limit the number of times a user sees a particular ad. It contains information such as the number of times an ad has been shown, how recently an ad has been shown, or how many total ads have been shown.

Performance cookies



This cookie contains a copy of the Experience Cloud ID (ECID) or MID.


This cookie is set and read by the JavaScript code to determine if cookies are enabled (simply set to “True”)


This cookie is used to get the percentage page viewed by the user


This cookie stores the quantity of pages percentage viewed


This cookie is used to identify a unique visitor if the standard s_vi cookie is unavailable due to third-party cookie restrictions


This cookie stores the quantity of pages you view when visiting the Websites


This cookie stores the quantity of page URL's you view when visiting the Websites


This cookie is used by Adobe Analytics to help identify a unique visitor across domains


A third-party cookie that stores the used to store visitors session, clicks, date and time.


This cookie is set by the customer’s domain after the AMCV cookie is set by the client. The purpose of this cookie is to allow persistent ID tracking in the 1st party state and is used as a reference ID if the AMCV cookie has expired


This cookie finds an instance of AppMeasurement by report suite ID. AppMeasurement keeps track of every instance created, and s_gi() returns the existing instance for a report suite if one exists.


This cookie is used to keeps a number of values (session ID, pc ID, check and disable) to manage how visitors experience Target campaigns.