Alts.co
Substacknewsletter · by Stefan von Imhof · English
Unique investment ideas worth exploring.
- Audience
- 348K subscribers
- Shown publicly on Substack
- Publishing
- Every two weeks
- 5 posts indexed in the last 90 days
- Last post
- Oct 8, 2026
- 24 days ago
- Likely audience
- Individual investors
- Inferred from post content
Alts.co is a Substack newsletter by Stefan von Imhof covering Helium supply chain, Natural gas industry and Semiconductor manufacturing. NewsletterFIT indexed 5 posts from it in the last 90 days, most recently on Oct 8, 2026. Shown publicly on Substack: 348K subscribers. Sponsors detected in recent posts include EarthRarest and Alumni Ventures.
Topics
- Helium supply chain
- Natural gas industry
- Semiconductor manufacturing
- Geopolitics
- Resource scarcity
Recent posts
- Why the…
- Let’s Pinhook…
- Collateral by…
- Who owns…
- The Ice…
Sponsors detected
- EarthRarest1 post · last Oct 8, 2026
- Alumni Ventures1 post · last Sep 30, 2026
Detected automatically from posts marked as sponsored. Detection can miss or misread placements.
See the full picture on Alts.co
Subscriber momentum over time, every detected sponsor with the source post, companies and people it mentions, guests, and an alert when any of it changes.
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Compiled from public pages · refreshed Oct 12, 2026 · How NewsletterFIT collects and labels data