سياسة الخصوصية

Summary

The Quant (thequant.market) is an online publication of data-driven analysis of trade, economics, technology and finance, owned and operated by ATHENE NOCTUA LIMITED (Business Registration No. 80988038), Unit 2904-05, 29/F, Universal Trade Centre, 3 Arbuthnot Road, Hong Kong S.A.R. We are responsible for your personal data. Anyone can read The Quant without an account. A free account lets you save articles, comment, and manage a paid subscription. You can sign in with your email address (we send you a one-time code) or with your Google account.

• We collect only what we need to run your account and the site.
• We don't sell your data, show ads, or track you across other websites.
• If you sign in with Google, we receive your name, email address and Google account ID, and nothing else from your Google account.
• You can delete your account, and the data tied to it, at any time from your account page.

What we collect

Your account

• Your email address, which identifies your account and is how we send you sign-in codes.
• Your display name, shown next to your comments.
• Accounts made before 8 November 2026 may also hold the country chosen then. We no longer ask for it or use it.
• The language you last signed in with, and whether you want the weekly email edition.
• If you use Google sign-in: your Google account ID (see the next section).
• If you use Sign in with Apple in our iPhone app: your Apple user ID, and a token from Apple that we keep only to end Sign in with Apple when you delete your account.

We never ask for or store a password. Sign-in codes are single-use and expire after 15 minutes.

What you do on the site

• Articles you bookmark, comments you post and comments you like. Comments are public, with your display name.
• While you're signed in, which articles you opened on which day (your reading history), so we can see what readers use and help with your account. Nothing is recorded for signed-out readers.

Subscriptions

Payments are handled by Stripe. We never see or store your card number. We keep your Stripe customer and subscription IDs, your plan, its status and renewal date, so we can show them on your account page and give you access.

In our iPhone app, Pro is bought through Apple's App Store. Apple handles the payment; we never see your card or your Apple ID. Each purchase carries a random identifier for your account, so Apple can tell us it is yours. We ask Apple for the subscription's status and keep its plan, status, renewal date and Apple's identifier for it.

Technical data

Our web servers record IP addresses and requests in their logs, for security and to stop abuse. We also record the IP address that requests a sign-in code, to limit how many codes one address can request.

To see how many people read The Quant and which pages work, we count visits from those server logs. We use no cookies for this. What we keep is the page, the time, the referring website (its name only), the browser and device type, and a visitor number made from your IP address and browser with a key that changes every day and is then deleted. The IP address itself isn't kept, and the visitor number can't be linked to you or to your visits on another day.

To see which parts of a page are read and used, the site also tells us, for each page view, where on the page you clicked (the position, and which link or button it was), how far down you scrolled, the size of your window and how long the page was open. It never sends what you type, and it is not sent from your account pages. No cookie or other identifier is used, so these reports can't be linked to you, to each other or to your account.

If a page breaks in your browser, the site sends us the error message, the page address and your browser type so we can fix it. Nothing else about you is sent.

Sign in with Google

Signing in with Google is optional; signing in with your email address works the same way. If you choose Google, we use Google only to confirm who you are. We request the basic sign-in permissions openid, email and profile, and nothing more.

What we receive from Google

• Your Google account ID, a number that tells us it's you the next time you sign in.
• Your email address, and whether Google has verified it. We only accept verified addresses.
• Your name. Google also sends a profile picture link and language as part of the basic profile; we don't store them.

How we use and store it

• Your Google account ID and email address are stored with your account, to sign you in and to link Google to an existing account with the same verified email.
• For a new account, your Google name becomes your display name. You can change it on your account page.
• We don't keep the access tokens Google issues: we check the sign-in once and discard them. We have no access to your Gmail, Drive, contacts, calendar or any other Google service, and we never post anything on your behalf.

What we never do with Google user data

• We don't sell it, share it with advertisers, or use it for advertising.
• We don't transfer it to anyone except as described under “Who we share it with”, or when the law requires it.
• We don't use it to develop, improve or train artificial intelligence or machine learning models.
• We don't use Google APIs or Google user data to generate images, and never images of people.

The Quant's use and transfer of information received from Google APIs adheres to the Google API Services User Data Policy, including the Limited Use requirements.

You can disconnect The Quant from your Google account at any time at myaccount.google.com/connections. To also remove the data we hold, delete your account (see “Your choices and rights”).

Instagram comments and messages

Our Instagram account, @thequant.market, can send you one direct message if you ask for it by commenting the word “quant” under one of our posts. The message contains a link to join the waitlist for our iPhone app. We don't message anyone who hasn't asked, and each comment gets at most one message.

• To do this we receive, through Instagram's official API, the comment's ID and text, and your Instagram user ID and username. We store them with the time and whether the message was delivered, so we never message you twice for the same comment.
• We delete these records after 90 days, or sooner if you ask us at hello@thequant.market.
• We don't read your other messages or comments, and we don't sell, share or use this data for advertising or to train AI models.
• If you join the waitlist, we keep the email address you type in until we've told you the app is out.

How we use it

• To create your account, sign you in and keep you signed in.
• To save your bookmarks, show your comments and likes, and keep your reading history.
• To run your subscription, charge the right tax and show your billing details.
• To send the emails you ask for: sign-in codes, and the weekly edition if you turned it on.
• To keep the site secure and stop abuse, such as code flooding or spam.
• To meet legal obligations, such as keeping tax records.

Under the EU and UK GDPR, we rely on our contract with you (running your account and subscription), our legitimate interest in keeping the service secure, our legal obligations (tax), and your consent (the weekly email, which you can turn off at any time).

We use AI tools to help research and translate our articles. Your personal data is not sent to them. The illustrations on our articles are generated from each article's topic and never from reader data.

Who we share it with

We share personal data only with the companies that help us run the service, and only what each one needs:

• Alibaba Cloud, which hosts our servers and databases in Hong Kong.
• Stripe, which processes payments and receives your email address, display name and payment details when you subscribe.
• Resend, which delivers our emails and receives your email address and the email we send you.
• Google, only when you choose to sign in with Google.
• Apple, when you sign in with Apple or buy Pro in our iPhone app (with a random identifier for your account).

Some of these providers process data outside Hong Kong, including in the United States, the European Union and Japan. We may also disclose data when the law requires it. We don't sell personal data.

How long we keep it

• Account details, bookmarks, comments and likes: until you delete your account.
• Sign-in sessions: 30 days after you last use the site.
• Sign-in codes: until used, and at most 15 minutes.
• IP addresses recorded for sign-in limits: one hour. Web server logs: 14 days.
• Visit counts, click and scroll reports, and error reports (no IP addresses): 30 days.
• Billing records: as long as tax law requires.

Your choices and rights

• Change your display name, email address and email preferences on your account page.
• Delete your account on the same page. This removes your profile (including your Google account ID), bookmarks, likes and reading history, cancels any subscription immediately, and blanks your comments (replies from other readers stay).
• Ask for a copy of your data, a correction, or anything else about your data by writing to editor@thequant.market.

Depending on where you live, you may have further rights, such as to object to processing or to complain to a data protection authority. In Hong Kong that is the Office of the Privacy Commissioner for Personal Data.

Cookies, children, security

We use only first-party cookies the site needs to work, such as the one that keeps you signed in. None of them track you across other websites. The full list is in our cookie policy.

The Quant is not directed at children under 16, and we don't knowingly collect their data.

All traffic to the site is encrypted (HTTPS), and access to personal data is limited to our team.

Changes and contact

When we change this policy, we update the date at the top of this page, and we email account holders about significant changes before they apply.

Questions or requests: editor@thequant.market. Our terms of use are on the Legal page.