GRBK vs AMZN
Green Brick Partners · Amazon
Superinvestor ownership overlap, unique holders, and conviction comparison.
What the ownership overlap reveals
Across 5 tracked superinvestors, no manager holds both GRBK and AMZN — the two names draw on entirely separate pools of smart money. GRBK appears in 2 tracked portfolios; AMZN in 3, so AMZN is the more widely held of the two among tracked managers.
GRBK is a Real Estate holding while AMZN sits in Technology — the overlap (or lack of it) partly tracks how each manager allocates across sectors. On the latest 13F cohort, GRBK’s ConvictionScore reads +14 (slight accumulation) against AMZN’s −7 (slight selling); GRBK shows the stronger net-accumulation reading of the pair.
Descriptive comparison of SEC Form 13F filings (45-day reporting lag; filings can be 1–3 months old). Not investment advice — see methodology.
Ownership fingerprint
Who holds GRBK only, who holds AMZN only, and who holds both.
- David Einhorn28.7%
- Howard Marks9.4%
No manager holds both GRBK and AMZN.
- Tom Slater8.7%
- Stephen Mandel6.9%
- David Tepper6.4%
Frequently asked questions
Which has more hedge-fund owners: GRBK or AMZN?
GRBK (Green Brick Partners) is held by 2 tracked superinvestors; AMZN (Amazon) is held by 3. AMZN has 1 more tracked holder. Full ranking by % of portfolio in the table below.
What managers hold both GRBK and AMZN?
0 tracked superinvestors hold both GRBK and AMZN based on the latest SEC 13F filings. Full overlap table below.
What is the overlap between GRBK and AMZN institutional ownership?
Across 5 unique tracked holders: 2 hold only GRBK (40%), 0 hold both (0%), 3 hold only AMZN (60%). The full Venn split + per-manager position % is on this page.
Sourced from SEC 13F filings (2026). Not investment advice. Methodology.
Reading for your research
Optional background reading on interpreting company disclosures and investing methods. These books do not validate a signal or predict returns.
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