{"url_path":"/sec/usci/8-k/2026-06-29/cover-page","section_key":"cover-page","section_title":"Cover Page","topic":"sec","document":{"doc_type":"8-K","doc_date":"2026-06-29","source_url":"https://www.sec.gov/Archives/edgar/data/1479247/0001104659-26-078529-index.html","accession_number":"0001104659-26-078529","cik":"0001479247","ticker":"USCI","issuer_name":"United States Commodity Index Funds Trust","edgar_url":"https://www.sec.gov/Archives/edgar/data/1479247/0001104659-26-078529-index.html","primary_entity_key":"0001479247","primary_entity_name":"United States Commodity Index Funds Trust"},"word_count":340,"has_tables":true,"body_markdown":"false\n0001479247\n\n0001479247\n\n2026-06-29\n2026-06-29\n\n0001479247\n\nusci:UnitedStatesCommodityIndexFundMember\n\n2026-06-29\n2026-06-29\n\n0001479247\n\nusci:UnitedStatesCopperIndexFundMember\n\n2026-06-29\n2026-06-29\n\niso4217:USD\n\nxbrli:shares\n\niso4217:USD\n\nxbrli:shares\n\n \n\n \n\n \n\n**UNITED STATES**\n\n**SECURITIES AND EXCHANGE COMMISSION**\n\n**Washington, D.C. 20549**\n\n** **\n\n**FORM 8-K**\n\n** **\n\n**CURRENT REPORT**\n\n**PURSUANT TO SECTION 13 OR 15(d) OF THE\nSECURITIES EXCHANGE ACT OF 1934**\n\n** **\n\nDate of Report (Date of earliest event reported):\nJune 29, 2026\n\n \n\n**UNITED\nSTATES COMMODITY INDEX FUNDS TRUST**\n\n(Exact name of registrant as specified in\nits charter)\n\n** **\n\n**Delaware**\n**001-34833**\n**27-1537655**\n\n(State or other jurisdiction\n(Commission File Number)\n(I.R.S. Employer\n\nof incorporation)\n \nIdentification No.)\n\n \n\n \n**1850 Mt. Diablo Boulevard, Suite 640**\n \n\n \n**Walnut Creek, California 94596**\n \n\n**(510) 522-9600**\n(Address of principal executive offices) (Zip Code)\n \n\nRegistrant's telephone number,\nincluding area code\n \n \n\n \n\n**Not Applicable**\n\n(Former name or former address, if changed\nsince last report)\n\n \n\nCheck the appropriate box below if the Form 8-K\nfiling is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General\nInstruction A.2. below):\n\n \n\n¨\nWritten communication pursuant to Rule 425 under the Securities Act (17 CFR 230.425)\n\n \n\n¨\nSoliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)\n\n \n\n¨\nPre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))\n\n \n\n¨\nPre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))\n\n \n\nIndicate by check mark whether the registrant\nis an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2\nof the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).\n\n \n\nEmerging\ngrowth company ¨\n\n \n\nIf\nan emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for\ncomplying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨\n\n \n\nSecurities registered pursuant to Section\n12(b) of the Act:\n\n \n\n**Title of each class**\n \n**Trading Symbol(s)**\n \n**Name of each exchange on which registered:**\n\nShares\nof United States Commodity Index Fund\n \nUSCI\n \nNYSE Arca, Inc.\n\nShares of United States Copper Index Fund\n \nCPER\n \nNYSE Arca, Inc."}