Quick Answer
ETFs are legally structured as open-end funds or UITs under the Investment Company Act of 1940, but they trade on an exchange throughout the day like a stock instead of transacting directly with the fund at NAV. Authorized participants create and redeem shares in-kind, which keeps ETF prices close to NAV and makes ETFs more tax-efficient than mutual funds.
The exam tests both halves of that Quick Answer separately: the legal structure (open-end/UIT) and the trading behavior (exchange-traded, intraday). Do not let the exchange-trading feature trick you into calling an ETF a closed-end fund.
What Are the Basic Characteristics of an ETF?
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Trade on exchanges throughout the day like stocks (continuous pricing)
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Most ETFs are passively managed (track an index), though actively managed ETFs exist
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Shares created and redeemed through an authorized participant (AP) mechanism using in-kind creation/redemption baskets
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Tax-efficient: in-kind creation/redemption minimizes capital gains distributions
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Generally lower expense ratios than comparable mutual funds
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Can be purchased on margin and sold short
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Can be bought and sold at market prices that may differ slightly from net asset value (NAV) (intraday premium/discount)
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No minimum investment beyond the share price
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Sold by prospectus
Exam Tip: Gotchas
- ETFs are legally structured as open-end funds or UITs under the ICA, but they trade like stocks on an exchange. This is a common exam trap.
How Does an ETF Compare to a Mutual Fund?
| Feature | ETF | Open-End Mutual Fund |
|---|---|---|
| Trading | Exchange, intraday | End of day, forward pricing |
| Pricing | Market price (may differ from NAV) | NAV only |
| Minimum investment | Price of one share | Often $1,000-$3,000 |
| Tax efficiency | Higher (in-kind mechanism) | Lower (capital gains distributions) |
| Expense ratios | Generally lower | Generally higher |
| Margin/short | Permitted | Not permitted |
| Management style | Mostly passive (index) | Active or passive |
Exam Tip: Gotchas
- ETFs can be bought on margin and sold short. Mutual funds cannot. This is a key distinction.
How Does the ETF Creation and Redemption Process Work?
ETFs use a unique "in-kind" creation and redemption mechanism that keeps their market price close to NAV. This is the key reason ETFs are more tax-efficient than mutual funds.
What Happens Step by Step?
Redemption is creation in reverse: the AP swaps ETF shares back for the underlying basket instead of the other way around.
Creation (New Shares):
| Step | Action |
|---|---|
| 1 | Authorized Participant (AP) assembles basket of underlying securities |
| 2 | AP delivers securities to ETF sponsor |
| 3 | ETF issues new shares to AP |
| 4 | AP sells ETF shares on exchange |
Redemption (Remove Shares):
| Step | Action |
|---|---|
| 1 | AP delivers ETF shares to fund |
| 2 | ETF delivers basket of underlying securities to AP |
| 3 | ETF cancels the redeemed shares |
| 4 | AP sells securities in market |
Who Are the Key Participants?
- Authorized Participants (APs): Large institutional investors (typically broker-dealers) authorized to create/redeem ETF shares directly with the fund
- Retail investors: Buy and sell on exchanges (cannot create/redeem directly)
Why Does In-Kind Creation Matter?
- No cash changes hands between ETF and AP
- In-kind redemption generally avoids realizing capital gains at the fund level, unlike a mutual fund redemption that may force the sale of portfolio securities for cash
- Fewer capital gains distributions to shareholders as a result
- Result: ETFs are generally more tax-efficient than mutual funds
How Does Arbitrage Keep the Price Near NAV?
- ETF trades at a premium (above NAV): APs create new shares and sell on the market. Supply increases, price falls back to NAV.
- ETF trades at a discount (below NAV): APs buy ETF shares and redeem for underlying securities. Supply decreases, price rises back to NAV.
Think of it this way: Imagine you could exchange a basket of apples for an "apple certificate" and vice versa at any time. If certificates sell for more than the apples are worth, you would buy apples, exchange them for certificates, and sell at a profit. This automatic arbitrage keeps ETF prices honest.
Exam Tip: Gotchas
- ETF creation/redemption is in-kind (not cash). This is why ETFs are more tax-efficient than mutual funds.
- Only Authorized Participants can create/redeem. Retail investors trade on exchanges.
- ETF premiums/discounts are typically very small due to the AP arbitrage mechanism. Large, persistent premiums/discounts are a closed-end fund characteristic.
What Should You Check on Exam Day?
- Can you state that an ETF is legally an open-end fund or a UIT, even though it trades like a stock?
- Do you know that ETF creation and redemption happen in-kind through authorized participants, not directly with retail investors?
- Can you explain why the in-kind mechanism makes ETFs more tax-efficient than mutual funds?
- Do you know why AP arbitrage keeps ETF premiums and discounts small, and that a large, persistent gap points to a closed-end fund instead?
- Can you compare ETFs and mutual funds on trading venue, pricing, minimum investment, and margin/short-sale eligibility?