Embed widgets

Embed HoldLens widgets on your site

Drop-in iframe widgets for every tracked superinvestor portfolio + every ticker ConvictionScore. Free. Attribution-only. No API key, no auth, no rate limits. Each embed renders fresh from the same data the canonical page reads — when the underlying 13F updates, your embed updates.

Superinvestor portfolio card

Top-3 holdings + closest replicating ETF + investing-style tag, in a 600px-wide card. Drop into a Substack post, a research blog, a Notion doc. Updates when the underlying 13F filing updates.

Generic snippet — replace [slug]

<iframe
  src="https://holdlens.com/embed/investor/[slug]/"
  width="600"
  height="360"
  frameborder="0"
  loading="lazy"
  title="HoldLens — superinvestor portfolio"
></iframe>

Featured managers

Warren Buffett

Preview →

Berkshire Hathaway

<iframe src="https://holdlens.com/embed/investor/warren-buffett/" width="600" height="360" frameborder="0" loading="lazy" title="Warren Buffett portfolio — HoldLens"></iframe>

Bill Ackman

Preview →

Pershing Square Capital

<iframe src="https://holdlens.com/embed/investor/bill-ackman/" width="600" height="360" frameborder="0" loading="lazy" title="Bill Ackman portfolio — HoldLens"></iframe>

Michael Burry

Preview →

Scion Asset Management

<iframe src="https://holdlens.com/embed/investor/michael-burry/" width="600" height="360" frameborder="0" loading="lazy" title="Michael Burry portfolio — HoldLens"></iframe>

Stanley Druckenmiller

Preview →

Duquesne Family Office

<iframe src="https://holdlens.com/embed/investor/stanley-druckenmiller/" width="600" height="360" frameborder="0" loading="lazy" title="Stanley Druckenmiller portfolio — HoldLens"></iframe>

See all 30 tracked superinvestors →

Ticker ConvictionScore badge

A signed −100 to +100 score derived from how the 30 tracked managers are positioning. One number. Compact badge format — slot anywhere on a stock-research page.

Generic snippet — replace [TICKER]

<iframe
  src="https://holdlens.com/embed/[TICKER]/"
  width="280"
  height="320"
  frameborder="0"
  loading="lazy"
  title="HoldLens — [TICKER] ConvictionScore"
></iframe>

Examples: AAPL · META · BN

JSON API for programmatic consumers

Building a tool, an LLM agent, a research script? Pull data directly from the public JSON API instead of scraping HTML. Same dataset, structured.

# Per-manager portfolio + ConvictionScore + ROI + moves
curl https://holdlens.com/api/v1/managers/bill-ackman.json

# Per-ticker breakdown (all 30 managers' positions)
curl https://holdlens.com/api/v1/scores/AAPL.json

# Full catalog
curl https://holdlens.com/api/v1/index.json

Full API documentation →

Attribution + license

Free for any use — personal, commercial, non-profit, AI training. No license fee.
Keep the "Powered by HoldLens" footer — every embed already includes it. Don't strip it.
Don't cloak the iframe behind a paywall without making the underlying source visible.
No warranty — 13F data is quarterly + lagged ~45 days; HoldLens doesn't provide investment advice. The widget is for context, not execution.