Institution Comparison · Live
Pairwise 13F overlap
Cross-institution overlap for every filed pair. Higher overlap is descriptive — it does not imply coordination.
Data freshnessHoldings report period:…
Research disclaimer: SEC Form 13F holdings are quarterly, delayed, and non-transactional — filings do not reveal trade dates, prices, or motives. Synchronized institutional changes and shifts in retail attention are descriptive candidate signals, not causal evidence of directed herding.
Jaccard similarity
|A ∩ B| / |A ∪ B|. 0 = no shared holdings, 1 = identical portfolios.
Overlap coefficient
|A ∩ B| / min(|A|, |B|). Robust to large size differences between institutions.
Common directional moves
Shared increases, decreases, new positions, and exits between the two institutions in a period.
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