Privacy and account data

Updated October 27, 2026. Common Investor is operated by masood llc. Contact: masoodm197@gmail.com.

Google sign-in

Google provides basic identity information, including your email, name and profile image where supplied. Supabase processes authentication and stores the account identity. We do not ask for your Google password or access to Gmail, Drive or other Google content.

Your research and sessions

We store a profile, your Introductory Premium membership and valuations you explicitly save: inputs, assumptions, financial-source metadata and recorded results. Research is private to the authenticated account under database ownership rules. Session and security cookies support login and request verification; browser storage retains preferences and may retain your worksheet. Hosting and authentication providers process connection and operational information.

Market data and other providers

Company lookup can send the requested ticker to Yahoo Finance through our server. Charts load software from jsDelivr. The website uses Google Analytics for page and feature events, which can include a selected ticker; Google's processing is governed by its privacy policy. No advertising loader is enabled in the main research workspace. Browser privacy controls can restrict analytics.

Deletion and recovery

Deleted saved valuations can be restored for 30 days. A scheduled daily database job clears expired valuation content after that window; minimal purged-record metadata can remain. To request deletion of your account and associated research, email support from your account address. We verify the request before an authorized administrator deletes the account. Account deletion cascades its profile, membership and associated research and is not an ordinary undoable Library action.

Deletion from active tables does not promise immediate removal from provider logs, retained backups or copies you exported. Provider retention and applicable obligations may limit complete erasure. The current Free database plan does not provide a guaranteed managed backup/recovery service; do not rely on this website as your only copy of important research. Contact support about access, correction, export or deletion.

We use Vercel for hosting, Supabase for the database/authentication, and Google for identity and analytics. See Vercel, Supabase and Google privacy information.

Terms and financial limitations