Alpha-File.com
The ultimate resource for monitoring your portfolio and tracking superinvestor holdings.
| Platform |  | Pricing | Only free issues | Publishes | Daily |
|---|---|---|---|---|---|
| Issues | 38 | Founded | 6 months ago | Last Issue | 5 days ago |
| Active | |||||
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alphafile.substack.comLatest Issues
Li Lu — Moving the Mountain
Most investors on this site have a “background.” Li Lu has a biography that reads like three different people’s lives stapled together.
Born just before the Cultural Revolution, he grew up in foster homes while his parents were in labor ca...
Best Ideas · Oct 5, 2026
Alpha-File · Best Ideas
This week’s investment pitches. See hundreds more at alpha-file.com.
FUNDAMENTALS
US LARGE CAP
US SMALL / MID CAP
GLOBAL
N/A = unavailable from current filings or market data sources · as of Mon 5 Oct 2026
US...
Best Ideas · Sep 28, 2026
Alpha-File · Best Ideas
This week’s investment pitches. See hundreds more at alpha-file.com.
FUNDAMENTALS
US LARGE CAP
US SMALL / MID CAP
GLOBAL
N/A = unavailable from current filings or market data sources · as of Mon 28 Sep 2026
US...
IGSB: The Santa Barbara Partnership That Turned $75,000 Into Two-Fifths of AppFolio
The Investment Group of Santa Barbara has compounded Reece Duca’s initial $75,000 seed money for fifty-eight years, has never taken an outside client according to Duca, and has no 13F among the identified public filings. Here is what the fi...
Best Ideas · Sep 21, 2026
Alpha-File · Best Ideas
This week’s investment pitches. See hundreds more at alpha-file.com.
US LARGE CAP
US SMALL / MID CAP
GLOBAL
N/A = unavailable from current filings or market data sources. Global fundamentals are coming and will...
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The writers behind this newsletter.
Alpha-File.com tracks what the world's best investors actually own. Free tools and research on 13F managers, mutual funds, and global holdings — with the fundamentals standardized across US, European, and Asian markets.
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