{"url":"https://etfiq.com/compare/themes/ion-vs-limi","section":"compare","title":"ION vs LIMI: which is really different? | ETFIQ","description":"2.6% of ION and 7.5% of LIMI is already in the S&P 500 by weight, as filed, and 22% 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 ION and LIMI hold the same stocks?","acceptedAnswer":{"@type":"Answer","text":"By their latest filings, 22% 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, ION or LIMI?","acceptedAnswer":{"@type":"Answer","text":"ION has 3% of its weight in S&P 500 names and LIMI has 8%, so ION differs more from the index."}},{"@type":"Question","name":"Which is cheaper, ION or LIMI?","acceptedAnswer":{"@type":"Answer","text":"ION charges 0.58% a year and LIMI charges 0.35%, so LIMI 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":"ION vs LIMI","item":"https://etfiq.com/compare/themes/ion-vs-limi"}]},{"@type":"WebPage","name":"ION vs LIMI: which is really different?","description":"2.6% of ION and 7.5% of LIMI is already in the S&P 500 by weight, as filed, and 22% 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/ion-vs-limi","dateModified":"2026-09-30","abstract":"ION and LIMI hold 22% of their weight in the same names.","publisher":{"@id":"https://etfiq.com/#org"},"isPartOf":{"@id":"https://etfiq.com/#website"},"speakable":{"@type":"SpeakableSpecification","cssSelector":[".verdict",".faq"]}},{"@type":"Dataset","name":"ETFIQ comparison of ION and LIMI","description":"2.6% of ION and 7.5% of LIMI is already in the S&P 500 by weight, as filed, and 22% 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/ion-vs-limi","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":6981,"truncated":true,"content":"ETFIQ / Thematic ETFs / Head to head / ION vs LIMI \n ETFIQ etfiq.com \u00b7 independent ETF data \n\n Data as of Sep 30, 2026 .\n\n ION vs LIMI: which is really different?\n\n ION and LIMI hold 22% of their weight in the same names.\n Copy this for sharing \n \n ProShares S&P Global Core Battery Metals ETF and Themes Lithium & Battery Metal Miners ETF.\n\n Download as PDF \n\n 2.6% ION in the S&P 500 \n 7.5% LIMI in the S&P 500 \n +18.9% ION total return, 1 year \n +12.1% LIMI total return, 1 year \n\n ETFIQ Off-Index Score: ION scores higher\n How much of it is not the index it is sold as an alternative to?\n [ION sc","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/ion-vs-limi","a":{"ticker":"ION","name":"ProShares S&P Global Core Battery Metals ETF","issuer":"ProShares","desk":"themes","as_of":"2026-09-30","verdict":"ION holds 53 stocks, and 97% of its weight is outside the S&P 500.","url":"https://etfiq.com/funds/ion","key_facts":[{"label":"Already in the S&P 500","value":"2.6%","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":"33.4%","as_of":"2026-09-30","source":null},{"label":"Total return, 1 year","value":"+18.9%","as_of":"2026-09-30","source":null},{"label":"Net assets","value":"$12m","as_of":"2026-09-30","source":"issuer page, as of Sep 30, 2026"},{"label":"Expense ratio","value":"0.58%","as_of":"2026-09-30","source":"485BPOS XBRL, Sep 25, 2026"}]},"b":{"ticker":"LIMI","name":"Themes Lithium & Battery Metal Miners ETF","issuer":"Themes","desk":"themes","as_of":"2026-09-25","verdict":"LIMI holds 41 stocks, and 92% of its weight is outside the S&P 500.","url":"https://etfiq.com/funds/limi","key_facts":[{"label":"Already in the S&P 500","value":"7.5%","as_of":"2026-09-25","source":null},{"label":"Active share vs the S&P 500","value":"100.0%","as_of":"2026-09-25","source":null},{"label":"Top ten holdings","value":"52.6%","as_of":"2026-09-25","source":null},{"label":"Total return, 1 year","value":"+12.1%","as_of":"2026-09-25","source":null},{"label":"Net assets","value":"$2m","as_of":"2026-09-25","source":"issuer page, as of Sep 18, 2026"},{"label":"Expense ratio","value":"0.35%","as_of":"2026-09-25","source":"485BPOS XBRL, Jan 27, 2026"}]},"overlap_pct":22,"full_text_at":"https://etfiq.com/compare/themes/ion-vs-limi"}