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S000082566 [Member] Investment Objectives and Goals - AB Conservative Buffer ETF
Nov. 30, 2025
Prospectus [Line Items]  
Risk/Return [Heading] BUFFER AB Conservative Buffer ETF
Objective [Heading] INVESTMENT OBJECTIVE
Objective, Primary [Text Block]
The Fund’s investment objective is to seek a conservative level of capital appreciation while providing the potential for some downside protection against market declines.