You agree to the privacy policy below, and the Privacy Policy for Substack, the technology provider.
Thank you for subscribing to
This Privacy Policy explains how I collect, use, and protect your personal information when you subscribe to or interact with this publication.
1. Information I Collect
Personal Information You Provide
Email address (required for subscription)
Name (if provided during subscription)
Payment information (handled securely by Stripe, not stored by me)
Any correspondence you send via email or comments
Automatically Collected Information
Subscription status and history
Email open and click-through rates
IP address and browser type (for analytics and security)
Geographic location (country/region level)
2. How I Use Your Information
Your information is used solely for:
Delivering newsletter content and updates
Processing and managing subscriptions
Responding to your inquiries
Improving content relevance and publication quality
Complying with legal obligations
3. Third-Party Services
Substack
This publication is hosted on Substack, which processes your data according to their Privacy Policy. Substack acts as the data controller for subscriber data.
Stripe
Payments are processed by Stripe, which handles your payment information according to their Privacy Policy. I do not store or have access to your full payment details.
Portfolio123 (If Applicable)
If you receive access to private Portfolio123 strategies, your email may be shared with Portfolio123 solely for granting access. Portfolio123’s Privacy Policy governs their use of your data.
4. Data Retention
Subscription data is retained as long as you remain a subscriber
After cancellation, I retain minimal records for legal and accounting purposes (typically 7 years)
You can request deletion of your personal data by contacting me
5. Your Rights
Depending on your location, you may have the right to:
Access your personal data
Correct inaccurate data
Request deletion of your data
Opt out of marketing communications
Data portability
Object to certain processing
To exercise these rights, contact me at [your email].
6. Data Security
I implement reasonable security measures, including:
Secure access controls to subscriber data
Encryption where appropriate
Regular security reviews
Limited access to subscriber information
However, no electronic transmission or storage is 100% secure.
7. Cookies and Tracking
Substack uses cookies and similar technologies as described in their Cookie Policy. You can manage cookie preferences through your browser settings.
8. International Data Transfers
Data may be transferred to and processed in countries outside your residence. By subscribing, you consent to such transfers.
9. Children’s Privacy
This publication is not intended for individuals under 18. I do not knowingly collect data from children.
10. Changes to This Policy
I may update this policy periodically. Material changes will be communicated to subscribers via email or within the publication.
11. Contact Information
For privacy-related inquiries, contact:
andreas.himmelreich@outlook.de
12. Additional Disclosures for California Residents
Under the California Consumer Privacy Act (CCPA), California residents have specific rights regarding their personal information. See Substack’s CCPA notice for details.
This privacy policy was last updated on 01/28/2026.