Authorized Participants (APs) are crucial in the ETF creation/redemption process, acting as liquidity providers. They buy underlying securities to create ETF shares or redeem ETF shares for securities. APs keep ETFs priced fairly by creating or redeeming shares based on market demand, ensuring ETFs trade close to their fair value.

APs are designated by ETF issuers and have the exclusive right to change ETF share supply. They create shares to address premiums and redeem shares to address discounts. APs play a vital role in maintaining ETF prices at fair value, benefiting both ETF providers and APs themselves.

The number of APs for an ETF affects its trading. More APs mean better competition, keeping ETF prices close to fair value. APs face challenges in illiquid markets when changing ETF share supply. Despite being invisible to most investors, APs play a crucial role in the ETF market ecosystem.

Read more at Yahoo Finance: ETF Education: What Are Authorized Participants?