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Track real-time US stock prices, market trends, and get instant stock quotes. Your essential tool for smart investing. Privacy Policy for US Stock Market Tracker Last Updated: December 28, 2025 INTRODUCTION US Stock Market Tracker ("we", "our", or "the extension") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and safeguard your information when you use our Chrome extension. INFORMATION WE COLLECT Data We DO Collect: • Stock symbols you search for (stored locally only) • Your personal watchlist (stored locally only) • Extension preferences and settings (stored locally only) Storage Location: All data is stored locally on your device using Chrome's storage API. This data never leaves your computer unless you choose to sync it via Chrome's sync feature. DATA WE DO NOT COLLECT We do NOT collect: • Personal identification information • Email addresses • Financial account information • Banking details • Credit card information • Browsing history • Usage analytics • IP addresses • Location data • Any tracking information HOW WE USE YOUR INFORMATION The information stored locally is used solely to: 1. Provide extension functionality 2. Display your saved watchlist 3. Remember your preferences 4. Provide quick access to frequently searched stocks THIRD-PARTY SERVICES Yahoo Finance API: • Purpose: Retrieve stock market data • Data transmitted: Stock symbols only • No personal info: No personal information is included in requests • Privacy Policy: https://legal.yahoo.com/us/en/yahoo/privacy/index.html hsxytz.com: When you click links to visit hsxytz.com: • You leave the extension environment • hsxytz.com's privacy policy applies • Standard website cookies may be used • Please review hsxytz.com's privacy policy PERMISSIONS EXPLAINED storage: • Purpose: Save your watchlist and preferences locally • Scope: Local device only • Data: Stock symbols and settings host_permissions (query1.finance.yahoo.com): • Purpose: Retrieve stock market data from Yahoo Finance API • Scope: Yahoo Finance API only • Data: Stock symbols you search for DATA SECURITY We implement security measures to protect your information: • All data stored locally on your device • No data transmission to our servers • HTTPS connections for API requests • No cookies or tracking scripts • Minimal permission requirements CHROME SYNC If you enable Chrome Sync: • Your watchlist may sync across your Chrome browsers • Data is encrypted by Google • Syncing is optional and controlled by Chrome settings • We do not control Chrome's sync functionality CHILDREN'S PRIVACY Our extension is not intended for children under 13 years of age. We do not knowingly collect information from children under 13. DATA RETENTION • Local Data: Retained until you remove the extension or clear browser data • No Server Data: We don't store any data on our servers • Complete Control: You can delete all data by removing the extension YOUR RIGHTS You have the right to: 1. Access Your Data • View your watchlist anytime in the extension 2. Delete Your Data • Remove individual stocks from your watchlist • Uninstall the extension to delete all data 3. Control Data Sharing • Disable Chrome Sync to keep data local • Control extension permissions COMPLIANCE This extension complies with: • Chrome Web Store Developer Program Policies • GDPR (General Data Protection Regulation) • CCPA (California Consumer Privacy Act) • COPPA (Children's Online Privacy Protection Act) CHANGES TO THIS POLICY We may update this Privacy Policy occasionally. Changes will be: • Posted in the extension update notes • Reflected in the "Last Updated" date • Available in the extension package Continued use after changes constitutes acceptance of the updated policy. DATA BREACH NOTIFICATION In the unlikely event of a data breach: • We will notify users promptly • We will detail the nature of the breach • We will provide guidance on protective measures Note: Since we don't store user data on servers, traditional data breaches are not applicable to this extension. INTERNATIONAL USERS This extension is available worldwide. By using it: • Data remains on your local device • No cross-border data transfers occur • Local privacy laws apply CALIFORNIA PRIVACY RIGHTS California residents have specific rights under CCPA: • Right to know what data is collected • Right to delete data (uninstall extension) • Right to opt-out of data sales (we don't sell data) EUROPEAN UNION USERS EU users have rights under GDPR: • Right to access data (view your watchlist) • Right to rectification (edit your watchlist) • Right to erasure (remove extension) • Right to data portability (export watchlist manually) • Right to object (don't use the extension) COOKIES This extension does NOT use cookies. DO NOT TRACK We honor Do Not Track signals. However, since we don't track users, this setting doesn't affect extension functionality. CONTACT US If you have questions about this Privacy Policy: • Website: https://www.hsxytz.com • Email: privacy@hsxytz.com • Chrome Web Store: Submit feedback through the extension page SUMMARY Your privacy is our priority. We collect minimal data, store it locally, and never share it with third parties. You have complete control over your information. This privacy policy is effective as of December 28, 2025.