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 +13 (slight accumulation) against AMZN’s −8 (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.