Privacy

Market Close is a public platform. Most of what you create here is meant to be seen — that is the product. This page is about the parts that are not, and about what happens to all of it when you leave.

What is public by default

Your profile (name, handle, avatar, banner, bio, about, strategy, country and city if you fill them in), your public portfolios and their full trade history, your stock calls and their outcomes, your posts, notes, comments and shared resources, your follower and following lists, your achievements, and your reputation score and leaderboard position. Anyone on the internet can read the parts of this that sit on public routes; the rest requires an account.

What is not public

• Your email address. Never displayed and never sold.
• Direct messages, and messages inside invite-only groups.
• Portfolios you have marked private, and their trades.
• Your notification and email preferences, your time zone, your watchlist and your unpublished note drafts.
• Reports you file. The account you report is not told who reported it.
• Accounts you have blocked. The blocked account is not notified.

What we collect

• Account data — from Google or GitHub when you sign in: your email address, display name and avatar. We never see or store your password.
• What you create — everything listed above, plus timestamps.
• Product analytics — page views and feature usage, via PostHog, to see which parts of the app are used.
• Error reports — stack traces and request context when something breaks, via Sentry.
• Push subscriptions — if you turn on notifications, the browser endpoint and keys needed to deliver them. Removing the subscription stops delivery immediately.

We do not run advertising, and we do not sell personal data to anyone.

Who it is shared with

Only the services that make the product run: Supabase (authentication and the database), Vercel (hosting and file storage), Resend (email), PostHog (analytics), Sentry (error reporting), and a web push service operated by your own browser vendor. Market and company data flows the other way — we fetch it from Yahoo Finance and the SEC’s EDGAR system, and we do not send them anything about you.

Email and notifications

Trade alerts, price alerts, replies, mentions, direct messages and the weekly digest are all individually switchable in Settings, and every digest carries an unsubscribe link that works without signing in. If your mail client shows its own unsubscribe button next to the sender, that one is a single click and takes effect immediately. The link in the message footer instead opens a confirmation page — mail clients and security scanners routinely fetch every link in a message, and one of them silently unsubscribing you would be worse than one extra click — so with that route it is the second click, on the page, that stops the digest. Turning push off stops your phone buzzing; the notification still appears in the app.

Deleting your account

Deletion anonymises your account rather than erasing it, and you should understand exactly what that means before you rely on it. Your name, handle, avatar, banner, bio, about, strategy, phone, age, country and city are set to null; your email is replaced with an address at a reserved domain that can never receive mail; every portfolio you own is made private and stopped; and you stop appearing in profiles, search, the people directory, followers lists and mention autocomplete.

Your posts, notes and note drafts, your comments — including comments left on other people’s portfolios — your reposts, likes, shared resources, messages in invite-only groups, watchlist, notifications, pinned pages and push subscriptions are all deleted, not anonymised. You do not need to clear them out first.

Files you uploaded are deleted from storage too — your avatar and banner, the images and documents attached to your posts and notes, and the images placed inside a note. The order to delete each of those files is recorded in the same database transaction that anonymises your account, so it is committed together with the deletion and cannot be lost if something then goes wrong. Removing the files themselves runs immediately afterwards rather than as part of that transaction, so that a storage outage can never undo the deletion itself; anything that first pass cannot remove stays on the queue, and a job retries it once a day for up to 10 attempts. We stop there rather than retrying forever, so we do not promise this always succeeds — a file that fails every one of those attempts stays where it is, and its queued record is kept, with the reason it failed, so that it can be found and removed by hand. One case always survives — a file you uploaded but never actually attached to anything leaves no record we can look it up by, so it stays at its original address.

What survives by design is the trade record, and the stock calls made against it. Those rows are the counterparty history behind other members’ leaderboard positions and reputation grades, and they are immutable at the database — see section 5 of the Terms. They remain, attached to an account that no longer identifies anyone.

Direct messages you have sent also survive, in the inbox of the person you sent them to. A one-to-one conversation is as much their record as yours, and deleting your half would rewrite a thread they were party to — the same reason the trades stay. They carry the anonymised handle rather than your name, and nothing new can be added to them: you are not offered as a recipient when someone composes a message, a kept link to your old profile cannot open a fresh thread, and no further message can be delivered into a conversation you were part of.

Your rights

Depending on where you live you may have the right to access, correct, export or object to the processing of your personal data. Most of it is directly editable in Settings; for anything else, contact the operator through the report control or by direct message and say what you want. We will do what the law requires, and we will tell you plainly when a request collides with the immutability rule above rather than quietly not doing it.

Cookies

Session cookies keep you signed in. Analytics cookies from PostHog measure usage. There are no advertising cookies and no third-party trackers beyond the services named above.

Changes

The date at the top of this page changes when this notice does.