Derivatives Risk, Swap Agreements Risk Member Derivatives Risk, Swap Agreements Risk Member Geographic Investment Risk, Risks Of Investing In Taiwan Risk Member Geographic Investment Risk, Risks Of Investing In Taiwan Risk Member Emerging Technologies Investment Risk Member Emerging Technologies Investment Risk Member Emerging Markets Risk, Geopolitical Risk Member Emerging Markets Risk, Geopolitical Risk Member Emerging Markets Risk Member Emerging Markets Risk Member Concentration Risk, Data Storage Hardware Industry Group Risk Member Concentration Risk, Data Storage Hardware Industry Group Risk Member Passive Investment Risk Member Passive Investment Risk Member Market Capitalization Risk, Small-Capitalization Investing Risk Member Market Capitalization Risk, Small-Capitalization Investing Risk Member ETF Risks, Trading Risk Member ETF Risks, Trading Risk Member Collateral Securities Risk Member Collateral Securities Risk Member Tax Risk Member Tax Risk Member Defiance Memory & Photonics ETF Class S000107092 Defiance Memory & Photonics ETF C000277979 Foreign Securities Risk Member Foreign Securities Risk Member Defiance Memory & Photonics ETF S000107092 Defiance Memory & Photonics ETF C000277979 Concentration Risk, Optoelectronics Electronics Components Industry Groups Risk Member Concentration Risk, Optoelectronics Electronics Components Industry Groups Risk Member Tracking Error Risk Member Tracking Error Risk Member Derivatives Risk, Swaps Capacity Risk Member Derivatives Risk, Swaps Capacity Risk Member Sector Risk Member Sector Risk Member Market Capitalization Risk, Mid-Capitalization Investing Risk Member Market Capitalization Risk, Mid-Capitalization Investing Risk Member ETF Risks, Shares May Trade At Prices Other Than NAV Risk Member ETF Risks, Shares May Trade At Prices Other Than NAV Risk Member ETF Risks, Authorized Participants, Market Makers, And Liquidity Providers Concentration Risk Member ETF Risks, Authorized Participants, Market Makers, And Liquidity Providers Concentration Risk Member Concentration Risk, Air, Liquid And Gas Control Equipment Industry Group Risk Member Concentration Risk, Air, Liquid And Gas Control Equipment Industry Group Risk Member Geographic Investment Risk Member Geographic Investment Risk Member Concentration Risk, Semiconductors Industry Risk Member Concentration Risk, Semiconductors Industry Risk Member Defiance AI Packaging & Testing ETF Class S000107091 Defiance AI Packaging & Testing ETF C000277978 Cybersecurity Risk Member Cybersecurity Risk Member Defiance AI Packaging & Testing ETF S000107091 Defiance AI Packaging & Testing ETF C000277978 Counterparty Risk Member Counterparty Risk Member Defiance Plumbing & Electrical ETF Class S000107093 Defiance Plumbing & Electrical ETF C000277980 Depositary Receipt Risk Member Depositary Receipt Risk Member ETF Risks, Cash Redemption Risk Member ETF Risks, Cash Redemption Risk Member AI Semiconductor Specialized Packaging And Testing Industry Risk Member AI Semiconductor Specialized Packaging And Testing Industry Risk Member Market Capitalization Risk Member Market Capitalization Risk Member AI Inference Technologies Industry Risk Member AI Inference Technologies Industry Risk Member ETF Risks Member ETF Risks Member Defiance Inference AI Chip ETF Class S000107090 Defiance Inference AI Chip ETF C000277977 Index Methodology Risk Member Index Methodology Risk Member ETF Risks, Costs Of Buying Or Selling Shares Risk Member ETF Risks, Costs Of Buying Or Selling Shares Risk Member Index Provider Risk Member Index Provider Risk Member Market Capitalization Risk, Large-Capitalization Investing Risk Member Market Capitalization Risk, Large-Capitalization Investing Risk Member Derivatives Risk Member Derivatives Risk Member Currency Exchange Rate Risk Member Currency Exchange Rate Risk Member Emerging Markets Risk, Capital Controls And Sanctions Risk Member Emerging Markets Risk, Capital Controls And Sanctions Risk Member Concentration Risk Member Concentration Risk Member Sector Risk, Information Technology Sector Risk Member Sector Risk, Information Technology Sector Risk Member Concentration Risk, Specialty Contracting Services Industry Group Risk Member Concentration Risk, Specialty Contracting Services Industry Group Risk Member Sector Risk, Materials Sector Risk Member Sector Risk, Materials Sector Risk Member New Fund Risk Member New Fund Risk Member Defiance Inference AI Chip ETF S000107090 Defiance Inference AI Chip ETF C000277977 China A-Shares Risk Member China A-Shares Risk Member Geographic Investment Risk, Risks Related To Investing In Japan Risk Member Geographic Investment Risk, Risks Related To Investing In Japan Risk Member Defiance Plumbing & Electrical ETF S000107093 Defiance Plumbing & Electrical ETF C000277980 Equity Market Risk Member Equity Market Risk Member