Yesterday, I wrote a bit about choosing mutual funds. Today, I’m writing about deciding between mutual funds and ETFs and about funds of funds, including balanced funds and lifecycle funds.
The ETF vs. mutual fund debate
The Toronto Stock Exchange invented the first exchange-traded fund in the 1990s. But in the last few years, their popularity has grown rapidly.
In a mutual fund, a money manager collects a big pool of money from investors, which he then uses to go out and buy stocks or bonds. Every time a new investor enters the fund, the manager has new money to invest. Conversely, the manager might have to sell stocks when someone leaves.
On the other hand, an ETF starts with the securities, which are mixed together, split up, and sold to investors. Think of ETFs as a chicken pot pie. The money managers throw in stocks and bonds as its ingredients, bake it together, and slice it up into portions, each with a little bit of each ingredient mixed in. After they’re created, the ETFs are traded on an open exchange, just like a stock.
It might sound like they accomplish the same thing. For the most part, that’s true. But the structure of ETFs allows them to carry lower expense ratios than those of comparable mutual funds and operate with greater tax efficiency. For example, the Vanguard Total Stock Market ETF and Vanguard Total Stock Market Index fund are each designed to give broad exposure to U.S. stocks. The ETF has an expense ratio of 0.07%. But the mutual fund has an expense ratio of 0.16%.
As far as disadvantages go, since ETFs trade like a stock, brokerages charge investors the same commissions that they would if the investor had bought a share of, say, Intel. Over the last few years, commissions have come way down. So, that drawback has become less and less relevant.
Most ETFs have been created to passively track indexes (like the S&P 500) or sectors (like green energy). Managers found it hard to create actively-managed ETFs because regulations would require them to disclose their holdings much more regularly than they would in a mutual fund. Managers with big funds sometimes have to accumulate stocks over several days or weeks. Disclosing their holdings frequently would allow other investors to see what they were buying and front-run them.
Despite that setback, the first actively-managed ETF was released in 2007—ironically, by Bear Stearns just before it went under. Even more ironically, the fund’s ticker symbol is YYY (say it outloud). Since then, several other money managers have started or said they intend to start active ETFs.
In deciding whether to use ETFs or mutual funds for your own portfolio, your main concern is how your brokerage fees compare to your mutual fund’s expense ratio.
Because of ETFs’ brokerage fees, in general, mutual funds are better if you buy them regularly as part of a savings plan (such as if you’re dollar-cost averaging). ETFs are better if you’re investing a large lump sum at once.
Let’s look at a real-world example using the Vanguard Total Stock Market ETF and the Vanguard Total Stock Market Index fund.
In the first case, let’s say you have $10,000 to invest all at once. If you chose the mutual fund, you’d have no trading costs. Pick the ETF, and you’d pay your normal brokerage fee (let’s say $10). The mutual fund’s expense ratio is 0.09% higher than that of the ETF. So if you chose the mutual fund, you’d pay an extra $9 in fees (0.09% * $10,000) every year, which would move up and down with your account value.
The total cost of the ETF for the first year is slightly higher than the mutual fund, but in the second year, the mutual fund’s extra $9 or so quickly eclipses the ETF’s initial trading cost.
For the second case, let’s say you’re investing $10,000 over a period of 10 months. The expense ratio difference is the same, but the trading costs of the ETF ($10 * 10 trades = $100) is much higher. So it takes much longer for the ETF to catch up to the mutual fund’s fees.
That example had some flaws. Some brokerage fees are lower than $10; the $9 in fees could shift dramatically if the account value skyrocketed or plummeted; etc. But the general point is the same. The more times a year you invest, the less buying an ETF benefits you.
As a rule of thumb, if you’re investing more than $5,000 at once, an ETF beats an equivalent mutual fund, according to the editor of the Journal of Indexes. Of course, your particular case will depend on your brokerage fees and the expense ratio difference between the funds.
What about funds of funds, like balanced funds or lifecycle funds?
Balanced funds are funds that invest partly in bonds, stocks, and cash. They can achieve this through either investing in the securities directly or by creating an overarching fund that invests in some of the mutual fund company’s bond and stock funds. Balanced funds start with an allocation (say, 50% in bonds and 50% in stocks) and regularly rebalance to keep themselves at their target.
On the other hand, lifecycle funds or target-date retirement funds, which I’ve criticized in the past, set the allocation based on your intended retirement age, and change the allocation from risky assets to less volatile assets as you grow older.
While target retirement funds have their weaknesses, they’re better than not rebalancing at all or than investing completely in stocks or bonds. Vanguard’s target retirement fund for those retiring in 2010 fell 21% last year—a terrible hit for someone nearing retirement. But if that person had just invested 100% in stock funds, he would have lost more than 40%.
If you use balanced funds, make sure you understand how they impact your overall allocation. Target retirement funds, for example, are intended to be the only mutual fund you hold. If you invest in stock or bond funds on top of the target fund, you’ll throw off the allocation that the money manager thinks is appropriate for someone your age. You may decide on your own that you want to be more conservative or aggressive than that manager. But at least pay attention to the underlying allocations of each of your funds.
When choosing a fund of funds, make sure you pay attention to the fund’s overall expense ratio. Fund of funds’ expenses are based on the expenses of each underlying mutual fund with a small overall fee thrown on top. Some websites only report the overall fee. So make sure you look at a fund’s prospectus to determine its total fee.
If you’re picking a fund whose allocation changes based on your age, you should also look at the prospectus or at a website such as Morningstar.com to see how the fund is split between stocks and bonds. Different mutual fund companies sometimes have drastically different ideas about what allocation is appropriate for people the same age. So you should figure out who you agree with. If you like a fund company but they seem too aggressive for your tastes, you could pick, say, the target retirement 2015 fund even though you’re retiring in 2025.
Again, these funds have their drawbacks, but if you truly want to “set it and forget it”, they’re an inexpensive choice.
— Joe Light