Last updated: August 6, 2025

This Ad and Cookie Policy applies to websites and mobile applications (“apps”) offered by Jane Street, including www.janestreet.com and other websites and apps managed by Jane Street that incorporate this Ad and Cookie Policy (jointly, the “Sites”).

When you visit our Sites, we obtain certain information by automated means, such as cookies, web beacons, including pixels and tags, flash cookies, web server logs and other similar technologies (collectively “Cookies”). Our use of Cookies may involve the processing of personal information. For more information about our data protection practices, please visit our online Privacy Notice.

WHAT ARE COOKIES?

A “cookie” is a text file that websites send to a visitor’s computer or other internet-connected device to uniquely identify the visitor’s browser or to store information or settings in the browser. A “web beacon”, also known as an Internet tag, pixel tag or clear GIF, links web pages to web servers and may be used to transmit information collected through cookies back to a web server. We refer to all of these and similar tracking technologies as “Cookies” for purposes of this Ad and Cookie Policy.

WHAT INFORMATION WE OBTAIN THROUGH COOKIES

The information we obtain through Cookies may include your device IP address, unique device identifier, web browser characteristics, device characteristics, operating system, language, access and personalization preferences, referring URLs, clickstream data, and dates and times of website visits.

COOKIES USED ON THE SITES

Below is a list of the categories of Cookies that we use on the Sites. You may indicate your choices with respect to the use of Cookies as described below. Please note that, depending on your selection, you may not be able to use all features of the Sites.

  • Strictly Necessary Cookies (Always On)
    These Cookies are necessary for Jane Street to ensure that the Sites operate properly, to facilitate your use of the Sites’ features and to provide basic functionalities. Without these Cookies, certain services cannot be provided. These Cookies help Jane Street understand information, such as your session ID and other server authentication information, that enables us to authenticate users and to note their preferences and consents. This category of Cookies should not be disabled. If you use your browser settings to block them, we cannot guarantee your security or predict how the Sites will perform during your visit. Strictly necessary Cookies are generally deleted when you end your browsing session or within a short period of time thereafter.
    • Cookie Name: _GRECAPTCHA
    • Purpose: Google reCAPTCHA security token to prevent spam and automated submissions on job application forms (NOTE: this is only used on application form pages)
    • First/Third Party: Third Party (Google)
    • Duration: Session
    • Sites where it is used: www.janestreet.com
  • Analytics Cookies (​​Accept / Reject)
    • Cookie Name: _ga
    • Purpose: Main Google Analytics identifier to distinguish users
    • First/Third Party: Third Party (Google)
    • Duration: 2 years
    • Sites where it is used: www.janestreet.com, blog.janestreet.com
    • Cookie Name: _ga_1R7QL7MQRB
    • Purpose: Google Analytics 4 property-specific identifier
    • First/Third Party: Third Party (Google)
    • Duration: 2 years
    • Sites where it is used: www.janestreet.com
    • Cookie Name: _ga_SGY4B2FDND
    • Purpose: Google Analytics 4 property-specific identifier
    • First/Third Party: Third Party (Google)
    • Duration: 2 years
    • Sites where it is used: www.janestreet.com

These Cookies collect information about how visitors interact with the Sites, such as what pages you visit, how long you stay on a page and whether the page is displayed correctly or any errors have occurred. Such Cookies help us improve our services and performance, and make the Sites more user-friendly.

We use third-party analytics services, including Google Analytics. The information we obtain on the Sites may be disclosed to or collected directly by these third-party services. To learn more about Google Analytics, please visit https://policies.google.com/technologies/partner-sites. To opt-out of Google Analytics, please visit https://tools.google.com/dlpage/gaoptout

YOUR CHOICES

Where required by applicable law, the Sites do not use non-strictly necessary Cookies unless you consent to their use through our cookie banner. At any time, you may visit our Ad and Cookie Policy to withdraw your consent or amend your preferences.

You may also stop Cookies from being downloaded on your computer by selecting the appropriate settings on your web browser. Most web browsers will tell you how to stop accepting new Cookies, how to be notified when you receive a new Cookie and how to disable existing Cookies. Please note, however, that without Cookies you may not be able to take full advantage of all the Sites’ features.

Click on the links below to find out how to manage Cookies on popular browsers:

In addition to the browser-based controls, you can manage third party Cookies by visiting www.aboutads.info/choices/. In the EU/UK, you can visit www.youronlinechoices.eu. For mobile devices, you may be able to manage how your device and browser share certain device data by adjusting the privacy and security settings on your mobile device.

Our Sites are not designed to respond to “Do Not Track” signals.

CONTACT US

Jane Street Group, LLC is the entity responsible for the use of Cookies on the Sites. If you have any questions about this Ad and Cookie Policy, you may contact us by email at [email protected] or writing to us at:

  • Jane Street Group, LLC
  • 250 Vesey Street
  • New York, NY 10281
  • United States