For journalists

What is HoldLens?

HoldLens is a free tool that tracks the portfolios of the world's smartest investors — Warren Buffett, Bill Ackman, Carl Icahn, Michael Burry, Seth Klarman, and others — by parsing their quarterly SEC 13F filings in real time. It includes interactive backtests, conviction scoring, sector rollups, and comparison tools.

Quick facts

• Launched: 2026
• Founder: Solo operator
• Data source: SEC EDGAR 13F / Form 4 / 13G/D filings
• Investors tracked: 10 curated superinvestors (expanding to 82)
• Indexable pages: 200+
• Pricing: Free core tier, paid Pro tier coming
• Built with: Next.js, Cloudflare Pages, AcePilot

Story angles

• "How retail investors are finally getting Bloomberg-grade portfolio tracking for free"
• "Why copy-trading Buffett doesn't work (and what to do instead)"
• "The 45-day delay: what every 13F tracker gets wrong"
• "Interactive backtest: what if you'd copied Warren Buffett since 1999?"
• "Conviction scoring: separating real bets from index padding in hedge fund portfolios"

Assets you can use

• Screenshots of any backtest: /simulate
• Top picks table: /top-picks
• Investor profile pages: /investor
• Any HoldLens URL — feel free to screenshot and attribute to "holdlens.com"

Contact

Press inquiries: [email protected]
General: [email protected]

Preferred citation

"According to HoldLens (holdlens.com), which tracks 13F filings from 10+ superinvestors..."