Covered Call ETFs vs Traditional ETFs: Why Higher Yield Often Means Lower Returns

Two ETFs. Same six Canadian banks. Same five years.

ZEB, the plain-vanilla equal-weight Canadian bank ETF, turned $10,000 into roughly $23,000. ZWB, the covered-call version that pays a higher monthly distribution, turned the same $10,000 into roughly $19,000.

The ZWB investor collected a higher yield the entire time. They saw cash arrive every month. They felt rewarded and yet ended up with roughly $4,000 less wealth than the ZEB investor.

What's the catch?

How the covered-call mechanic actually works

A covered-call ETF owns shares - say, the Big Six Canadian banks - and sells call options on a portion of those shares each month. In exchange, the fund collects option premiums and distributes much of that cash to unitholders.

Imagine you're choosing between two compensation packages at work. One offers a higher fixed salary with little or no bonus potential. The other offers a lower salary but a meaningful share of profits through bonuses.

A covered-call ETF is similar to the first option. You exchange some future upside for more predictable cash flow today.

In a strong market, the employee with the bonus structure will often come out ahead because they participate more fully in the company's success. Likewise, when stocks rise sharply, the upside that a covered-call ETF has sold away can become more valuable than the option premiums it collected.

Over the past five years, that trade-off has been meaningful across several covered-call strategies.

The tax benefits

It's not all bad news.

The headline yield on these funds - CNCC at roughly 8%, ZWB at roughly 5%, and QQCC at roughly 11% - represents real cash distributions. The income is genuine, and there can be meaningful tax advantages depending on the account type and investor situation.

Consider CNDX and CNCC as an example. In a recent tax year, CNCC's distributions were composed primarily of return of capital (ROC), while CNDX's distributions consisted mostly of eligible dividends. The exact percentages vary by year, but the distinction is important.

Eligible Canadian dividends are taxable in the year received in non-registered accounts, though they benefit from the dividend tax credit. Return of capital is treated differently. It reduces your adjusted cost base rather than creating an immediate tax liability, deferring the tax until you eventually sell.

For example, suppose a covered-call fund owns shares trading at $80 and sells call options that cap future gains above $85 in exchange for a $4 premium. The fund has effectively traded some future upside for cash today. If that cash is ultimately distributed as return of capital, investors receive the cash immediately while deferring the associated tax consequences until a future sale.

This can be attractive for investors in high tax brackets who expect to be in a lower tax bracket later, such as during retirement.

The trade-off is that covered-call strategies often lag during unexpectedly strong bull markets. When stock prices rise far beyond what option markets had implied, the upside surrendered through the call options can exceed the value of the premiums received. This is where the performance gap between covered-call ETFs and their underlying portfolios tends to emerge.

The recent performance difference between ZEB and ZWB provides a good example. As Canadian bank stocks rallied strongly, the covered-call overlay limited participation in that upside.

Who these funds are actually for

Yield-focused ETFs are not bad products. They're specialized products that are often marketed to a broader audience than they were designed for.

They can make sense for retirees holding investments in non-registered accounts who need predictable monthly cash flow. A covered-call strategy systematically converts part of a portfolio's future upside into current income, reducing the need to sell units to generate cash.

They may also make sense for high-income earners who value the tax-deferral characteristics of return of capital and are willing to accept lower expected long-term returns in exchange for greater current cash flow.

However, the case is generally weaker for investors accumulating wealth in TFSAs and RRSPs. In those accounts, the tax-deferral benefit of ROC largely disappears, while the costs of the covered-call strategy remain.

Similarly, younger investors with long investment horizons should think carefully before prioritizing yield over total return. Even modest differences in annualized returns can compound into substantial differences in portfolio value over several decades.

Most importantly, investors should avoid confusing yield with return. A high distribution rate does not automatically mean a higher-performing investment.

The check you can run on yourself

If you currently hold a covered-call ETF, three questions can help determine whether it's serving the purpose you think it is.

1. What account is it in?

If it's held in a TFSA or RRSP, ask yourself whether the primary benefits of the strategy still apply. The tax-deferral advantages associated with ROC are much less relevant inside registered accounts, while the potential performance drag remains.

2. Are you spending the distributions or reinvesting them?

If you're reinvesting every distribution through a DRIP, consider whether the higher cash flow is actually solving a problem for you. One of the primary arguments for covered-call ETFs is that they generate spendable income. If that income is simply being reinvested, the benefit may be smaller than it initially appears.

3. Would you still own it if the yield were lower?

Many investors focus on the distribution rate first and the underlying strategy second. A useful test is to ask whether you'd still want to own the fund if the yield were half as high. If the answer is no, it's worth examining whether you're buying the investment for its economics or simply for the size of the monthly payment.

If the chart at the top of this article surprised you, you're probably not alone. The solution isn't necessarily to sell tomorrow. It's to understand what you're holding, why you own it, and whether it still matches your goals.

Use the Compare tool on DecodeETF to run ZEB against ZWB — or your own holdings against their unwrapped equivalents — and see exactly what the covered-call overlay is costing you.