{"url":"https://etfiq.com/compare/themes/boat-vs-sea","section":"compare","title":"BOAT vs SEA: which is really different? | ETFIQ","description":"0.0% of BOAT and 9.2% of SEA is already in the S&P 500 by weight, as filed, and 36% of the two books are the same names at the same weight.","as_of":"Sep 30, 2026","structured_data":[{"@type":"FAQPage","mainEntity":[{"@type":"Question","name":"Do BOAT and SEA hold the same stocks?","acceptedAnswer":{"@type":"Answer","text":"By their latest filings, 36% of their books are the same securities at the same weight, which is a meaningful overlap. Overlap is the sum of the smaller weight of every security they share."}},{"@type":"Question","name":"Which is more different from the S&P 500, BOAT or SEA?","acceptedAnswer":{"@type":"Answer","text":"BOAT has 0% of its weight in S&P 500 names and SEA has 9%, so BOAT differs more from the index."}},{"@type":"Question","name":"Which is cheaper, BOAT or SEA?","acceptedAnswer":{"@type":"Answer","text":"BOAT charges 0.69% a year and SEA charges 0.60%, so SEA is cheaper. Fees come from each fund's prospectus."}}]},{"@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"ETFIQ","item":"https://etfiq.com/"},{"@type":"ListItem","position":2,"name":"Thematic ETFs","item":"https://etfiq.com/themes/"},{"@type":"ListItem","position":3,"name":"BOAT vs SEA","item":"https://etfiq.com/compare/themes/boat-vs-sea"}]},{"@type":"WebPage","name":"BOAT vs SEA: which is really different?","description":"0.0% of BOAT and 9.2% of SEA is already in the S&P 500 by weight, as filed, and 36% of the two books are the same names at the same weight. Returns and overlap to Sep 30, 2026.","url":"https://etfiq.com/compare/themes/boat-vs-sea","dateModified":"2026-09-30","abstract":"BOAT and SEA hold 36% of their weight in the same names, and BOAT returned +78.0% over the year.","publisher":{"@id":"https://etfiq.com/#org"},"isPartOf":{"@id":"https://etfiq.com/#website"},"speakable":{"@type":"SpeakableSpecification","cssSelector":[".verdict",".faq"]}},{"@type":"Dataset","name":"ETFIQ comparison of BOAT and SEA","description":"0.0% of BOAT and 9.2% of SEA is already in the S&P 500 by weight, as filed, and 36% of the two books are the same names at the same weight. Returns and overlap to Sep 30, 2026.","dateModified":"2026-09-30","creator":{"@id":"https://etfiq.com/#org"},"isAccessibleForFree":true,"url":"https://etfiq.com/compare/themes/boat-vs-sea","license":"https://etfiq.com/standards/","publisher":{"@id":"https://etfiq.com/#org"},"inLanguage":"en","creativeWorkStatus":"Published","distribution":[{"@type":"DataDownload","encodingFormat":"application/json","contentUrl":"https://etfiq.com/data/thematic.json"}],"variableMeasured":["Weight overlap with the S&P 500","Active share","Holdings","Top ten share of the fund","Total return","Fee for the differing part","Expense ratio"],"keywords":["exchange-traded funds","ETF","Thematic ETFs","fund data","SEC filings"]}],"characters":6900,"truncated":true,"content":"ETFIQ / Thematic ETFs / Head to head / BOAT vs SEA \n ETFIQ etfiq.com \u00b7 independent ETF data \n\n Data as of Sep 30, 2026 .\n\n BOAT vs SEA: which is really different?\n\n BOAT and SEA hold 36% of their weight in the same names, and BOAT returned +78.0% over the year.\n Copy this for sharing \n \n SonicShares Global Shipping ETF and U.S. Global Sea to Sky Cargo ETF.\n\n Download as PDF \n\n 0.0% BOAT in the S&P 500 \n 9.2% SEA in the S&P 500 \n +78.0% BOAT total return, 1 year \n +51.8% SEA total return, 1 year \n\n ETFIQ Off-Index Score: BOAT scores higher\n How much of it is not the index it is sold as an alter","source":"ETFIQ, independent ETF data. Recomputed nightly from public filings and prices.","publisher":{"@id":"https://etfiq.com/#org","name":"ETFIQ","url":"https://etfiq.com"},"license":"https://etfiq.com/license/","citation":"ETFIQ, as of Sep 30, 2026. https://etfiq.com/compare/themes/boat-vs-sea","a":{"ticker":"BOAT","name":"SonicShares Global Shipping ETF","issuer":"SonicShares","desk":"themes","as_of":"2026-09-30","verdict":"BOAT holds 51 stocks, and 100% of its weight is outside the S&P 500.","url":"https://etfiq.com/funds/boat","key_facts":[{"label":"Already in the S&P 500","value":"0.0%","as_of":"2026-09-30","source":null},{"label":"Active share vs the S&P 500","value":"100.0%","as_of":"2026-09-30","source":null},{"label":"Top ten holdings","value":"47.4%","as_of":"2026-09-30","source":null},{"label":"Total return, 1 year","value":"+78.0%","as_of":"2026-09-30","source":null},{"label":"Net assets","value":"$67m","as_of":"2026-09-30","source":"SEC filing, whole fund, as filed for Jun 30, 2026"},{"label":"Expense ratio","value":"0.69%","as_of":"2026-09-30","source":"485BPOS XBRL, Jul 27, 2026"}]},"b":{"ticker":"SEA","name":"U.S. Global Sea to Sky Cargo ETF","issuer":"U.S. Global","desk":"themes","as_of":"2026-09-30","verdict":"SEA holds 29 stocks, and 91% of its weight is outside the S&P 500.","url":"https://etfiq.com/funds/sea","key_facts":[{"label":"Already in the S&P 500","value":"9.2%","as_of":"2026-09-30","source":null},{"label":"Active share vs the S&P 500","value":"99.7%","as_of":"2026-09-30","source":null},{"label":"Top ten holdings","value":"46.3%","as_of":"2026-09-30","source":null},{"label":"Total return, 1 year","value":"+51.8%","as_of":"2026-09-30","source":null},{"label":"Net assets","value":"$18m","as_of":"2026-09-30","source":"SEC filing, whole fund, as filed for Jun 30, 2026"},{"label":"Expense ratio","value":"0.60%","as_of":"2026-09-30","source":"485BPOS XBRL, Apr 24, 2026"}]},"overlap_pct":36,"full_text_at":"https://etfiq.com/compare/themes/boat-vs-sea"}