Authorized Participant

An institutional entity with the exclusive right to create and redeem shares of an ETF directly with the fund sponsor.

An Authorized Participant (AP) is a large financial institution, typically a market maker, investment bank, or broker-dealer, that has a legal agreement with an ETF sponsor. APs are the only entities permitted to create and redeem shares of an ETF directly with the fund sponsor. This activity occurs in the primary market, whereas retail and institutional investors trade existing ETF shares in the secondary market. To create new ETF shares, the AP assembles a basket of the underlying securities in their designated proportions and delivers them to the ETF sponsor. In return, the sponsor issues the AP a block of ETF shares, typically in units of 25,000 to 100,000 shares, known as creation units. For redemptions, the process is reversed: the AP delivers creation units of ETF shares to the sponsor and receives the underlying basket of securities. Investors care about APs because their arbitrage activities keep the market price of the ETF closely aligned with its Net Asset Value (NAV). If an ETF trades at a premium to its NAV, an AP will buy the cheaper underlying securities, exchange them for ETF shares, and sell those shares on the open market for a profit, driving the ETF price back down. If the ETF trades at a discount, the AP buys the cheaper ETF shares, redeems them for the underlying assets, and sells those assets, driving the ETF price back up. If an ETF has multiple active APs, the competition keeps the bid-ask spread narrow and minimizes premiums or discounts. However, during periods of extreme market stress, APs may temporarily stop creating or redeeming shares if the underlying assets are highly illiquid or difficult to price. This can cause the ETF to trade at a significant premium or discount to its actual NAV, which is a key risk for retail investors to monitor.

An ETF tracking gold trades at $102 per share on the stock exchange, but the actual gold backing each share is only worth $100 (the Net Asset Value). An Authorized Participant notices this $2 premium. The AP buys $10,000,000 worth of physical gold, delivers it to the ETF sponsor, and receives 100,000 newly created ETF shares. The AP immediately sells these 100,000 shares on the open market at $102 each, generating $10,200,000 in revenue. The AP pockets a risk-free arbitrage profit of $200,000 (minus transaction costs), and their selling pressure drives the ETF market price back down toward its $100 NAV.