By Vanya Sharma, Senior Associate, Capital
Key Takeaways
- The primary market for ETFs is where creation and redemption processes occur between the ETF issuer and authorized participants, away from regular investors, allowing for arbitrage opportunities when the ETF share price differs from the underlying basket’s value.
- The liquidity of an ETF is determined by its underlying assets. It is as liquid as its least liquid underlying security in the basket, with average trading volume and total assets not providing the full liquidity picture.
- The cost of an ETF includes not only the annual expense ratio but also the bid/offer spread, premiums/discounts to the NAV and commissions, with the bid/offer spread representing the trading costs passed on to the investor and being viewed as a fraction of the ETF price.
1. What is the ETF primary market?
The ETF creation and redemption processes take place in the primary market. A creation or redemption takes place between the ETF issuer and the authorized participant (“AP”). These transactions occur away from an exchange and are not accessible to regular investors. An AP is a financial institution that offers basket liquidity in the primary market, which is different from a market maker’s role as a liquidity provider in the secondary market. In times when an ETF market price is not trading close to its intrinsic value, the AP also hopes to profit from an ETF via arbitrage when the ETF share price is different from the underlying basket’s value.
2. Is liquidity just on-screen trade volume?
No. The “true” liquidity of an ETF is based on its underlying assets and is as liquid as its least liquid underlying security in the basket. Hence, by themselves, the ETF’s average trading volume and total assets do not paint the full liquidity picture.
3. What is the cost of an ETF?
The cost of an ETF is not just the annual expense ratio but also the bid/offer spread, premiums/discounts to the NAV and commissions.
4. What exactly is the ETF’s bid/offer spread?
Simply, it incorporates all the trading costs (create/redeem fees, spreads of underlying securities in the basket, hedging costs, trade financing costs and taxes) and gets passed on to the investor. Numerically, the investor should view the spread as a fraction of the ETF price. For example, an ETF with a spread of 20 cents and a share price of $50 will be considered to be more expensive (0.20/50 = 0.40% or 40 bps) than one with a share price of $100 (0.2/100 = 0.20% or 20 bps).
The wider the spread, the more expensive it is to trade the ETF and the underlying basket. The tighter the spread, the less expensive it is to trade the ETF and the underlying basket.
As an ETF grows and becomes more actively traded, its costs reduce, and generally, spreads tighten.
5. What are some ways to seek “best execution” for a trade?
It is always good to monitor the National Best Bid and Offer (“NBBO”), as it represents the tightest bid/offer spread for a given ETF. Also, it is good to know the implied liquidity of that ETF to know if a client’s trade will be easily absorbed into the market without any spike in price. When placing a trade order, a client should always place a “limit order,” which tells the broker to transact the trade at a given price or better. A limit order differs from a market order because if the requirements of the limit are not met, then the order does not have to be filled, whereas market orders rely on immediate execution at the trade arrival’s price. Also, it is recommended to avoid trading at the open or close of a market session, as those times generally correspond to lower liquidity.
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Originally published 2 April 2024.
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