(Bloomberg) -- The world’s largest issuers of ETFs are holding talks with stock exchanges and market-makers to avoid a repeat of the issues that plagued ETFs during Aug. 24’s market turmoil, according to five people with direct knowledge of the matter.

BlackRock, Vanguard and State Street, which between them manage close to $2 trillion in ETF assets, are among the money managers that have in recent weeks held discussions, according to the people.

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