SEA vs BOAT overlap
SEA and BOAT overlap 35.2% by weight, across 14 shared holdings.
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Top shared holdings
| Holding | SEA | BOAT | Overlap |
|---|---|---|---|
| SITC1308 | 4.85% | 4.75% | 4.75% |
| Orient Overseas316 | 4.93% | 4.72% | 4.72% |
| International SEINSW | 4.87% | 4.08% | 4.08% |
| Wallenius WilhelWAWI | 4.90% | 4.07% | 4.07% |
| Cosco Ship HOL-H1919 | 4.89% | 3.86% | 3.86% |
| Scorpio TankersSTNG | 3.75% | 3.86% | 3.75% |
| Hafnia Ltd.HAFNI | 1.90% | 3.73% | 1.90% |
| Hoegh AutolinersHAUTO | 3.80% | 1.84% | 1.84% |
| DHT Holdings Inc.DHT | 5.12% | 1.75% | 1.75% |
| Danaos CorpDAC | 1.96% | 1.47% | 1.47% |
| Teekay Tank-CL aTNK | 1.86% | 1.28% | 1.28% |
| Global Ship Lease IncGSL | 4.03% | 0.89% | 0.89% |
| Teekay Corp. Ltd.TK | 3.48% | 0.57% | 0.57% |
| Euroseas LtdESEA | 1.89% | 0.31% | 0.31% |
Overlap by weight adds up the smaller weight of each holding the funds share, so 100% means identical portfolios. Long securities only: derivatives and cash vehicles are left out. Sources: SEA, SEC Form N-PORT, June 30, 2026; BOAT, SEC Form N-PORT, June 30, 2026.
Largest institutions holding both
| Firm | SEA | BOAT |
|---|---|---|
| Susquehanna International Group, LLP | $255K | $1.7M |
| Citadel Advisors LLC | $1.4M | $277K |
| Osaic Holdings, Inc. | $12K | $155K |
| Simplex Trading, LLC | $41K | $10K |
| UBS Group AG | $29K | $7K |
| Morgan Stanley | $27 | $17K |
| Harbour Investments, Inc. | $5K | $7K |
This compares who owns the funds, not what the funds hold. From SEC Form 13F, for managers with $100M+ in US securities.
Who owns them: SEA institutional holders, BOAT institutional holders.
Frequently asked questions
How much do SEA and BOAT overlap?
35.2% by weight, with 14 holdings in common, using holdings for SEA as of June 30, 2026 and BOAT as of June 30, 2026. The largest shared position is 1308.
Do institutions hold both SEA and BOAT?
7 Form 13F filers report positions in both, out of 31 that report either one.
How is overlap by weight worked out?
For each holding the two funds share, take the smaller of the two weights, then add those up. Identical portfolios score 100%.