{"url":"https://etfiq.com/compare/themes/tnuk-vs-uran","section":"compare","title":"TNUK vs URAN: which is really different? | ETFIQ","description":"17.5% of TNUK and 24.7% of URAN is already in the S&P 500 by weight, as filed, and 34% 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 TNUK and URAN hold the same stocks?","acceptedAnswer":{"@type":"Answer","text":"By their latest filings, 34% 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, TNUK or URAN?","acceptedAnswer":{"@type":"Answer","text":"TNUK has 18% of its weight in S&P 500 names and URAN has 25%, so URAN differs more from the index."}},{"@type":"Question","name":"Which is cheaper, TNUK or URAN?","acceptedAnswer":{"@type":"Answer","text":"TNUK charges 0.85% a year and URAN charges 0.35%, so URAN 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":"TNUK vs URAN","item":"https://etfiq.com/compare/themes/tnuk-vs-uran"}]},{"@type":"WebPage","name":"TNUK vs URAN: which is really different?","description":"17.5% of TNUK and 24.7% of URAN is already in the S&P 500 by weight, as filed, and 34% 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/tnuk-vs-uran","dateModified":"2026-09-30","abstract":"TNUK and URAN hold 34% 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 TNUK and URAN","description":"17.5% of TNUK and 24.7% of URAN is already in the S&P 500 by weight, as filed, and 34% 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/tnuk-vs-uran","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":6905,"truncated":true,"content":"ETFIQ / Thematic ETFs / Head to head / TNUK vs URAN \n ETFIQ etfiq.com \u00b7 independent ETF data \n\n Data as of Sep 30, 2026 .\n\n TNUK vs URAN: which is really different?\n\n TNUK and URAN hold 34% of their weight in the same names.\n Copy this for sharing \n \n Tortoise Nuclear Renaissance ETF and Themes Uranium & Nuclear ETF.\n\n Download as PDF \n\n 17.5% TNUK in the S&P 500 \n 24.7% URAN in the S&P 500 \n \u221211.8% TNUK total return, since launch \n \u221222.3% URAN total return, 1 year \n\n ETFIQ Off-Index Score: URAN scores higher\n How much of it is not the index it is sold as an alternative to?\n [TNUK scores 66.3 ","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/tnuk-vs-uran","a":{"ticker":"TNUK","name":"Tortoise Nuclear Renaissance ETF","issuer":"Tortoise","desk":"themes","as_of":"2026-09-30","verdict":"TNUK holds 25 stocks, and 82% of its weight is outside the S&P 500.","url":"https://etfiq.com/funds/tnuk","key_facts":[{"label":"Already in the S&P 500","value":"17.5%","as_of":"2026-09-30","source":null},{"label":"Active share vs the S&P 500","value":"99.2%","as_of":"2026-09-30","source":null},{"label":"Top ten holdings","value":"61.8%","as_of":"2026-09-30","source":null},{"label":"Total return, since launch","value":"\u221211.8%","as_of":"2026-09-30","source":null},{"label":"Net assets","value":"$2m","as_of":"2026-09-30","source":"SEC filing, whole fund, as filed for May 31, 2026"},{"label":"Expense ratio","value":"0.85%","as_of":"2026-09-30","source":"485BPOS, Mar 30, 2026"}]},"b":{"ticker":"URAN","name":"Themes Uranium & Nuclear ETF","issuer":"Themes","desk":"themes","as_of":"2026-09-30","verdict":"URAN holds 42 stocks, and 75% of its weight is outside the S&P 500.","url":"https://etfiq.com/funds/uran","key_facts":[{"label":"Already in the S&P 500","value":"24.7%","as_of":"2026-09-30","source":null},{"label":"Active share vs the S&P 500","value":"99.5%","as_of":"2026-09-30","source":null},{"label":"Top ten holdings","value":"41.2%","as_of":"2026-09-30","source":null},{"label":"Total return, 1 year","value":"\u221222.3%","as_of":"2026-09-30","source":null},{"label":"Net assets","value":"$25m","as_of":"2026-09-30","source":"issuer page, as of Sep 18, 2026"},{"label":"Expense ratio","value":"0.35%","as_of":"2026-09-30","source":"485BPOS XBRL, Jan 27, 2026"}]},"overlap_pct":34,"full_text_at":"https://etfiq.com/compare/themes/tnuk-vs-uran"}