2013 was a great year for US stocks, and that also means that many mutual funds distributed (taxable) capital gains to their shareholders. ETFs are hot right now and there are many articles like this one which tout the tax-efficiency aspect of ETFs as to why they are superior to mutual funds.
Yes, it is true that ETFs have an inherent structural advantage over mutual funds in avoiding the production of capital gains. (I won’t explain it here, but here is one explanation.) However, the primary reason that mutual funds tend to distribute more capital gains is that most ETFs are passive and thus trade sparingly, while actively-managed funds by definition buy and sell much more frequently (what else are you paying them to do?).
But if you hold a good index fund, it will have very low turnover and thus you’ll rarely have to deal with capital gains either way. For example, both the Vanguard S&P 500 Index Fund (VFINX) and the Fidelity Spartan 500 Index Fund (FUSEX) had zero capital gains distributions in 2013 despite being up over 30% for the year.
On top of all that, at Vanguard their mutual funds and ETFs of the same name are structured as different share classes of the same basket of securities. That means the mutual funds and ETFs have exactly the same level of tax-efficiency. From the Vanguard website:
Are there tax advantages to owning Vanguard ETFs?
Because Vanguard ETFs are shares of conventional Vanguard index funds, they can take full advantage of tax-management strategies available to conventional funds and to ETFs. Conventional index funds can manage tax liabilities by selling high-cost securities to realize losses to offset realized gains. Vanguard ETFs can also limit a fund’s potential capital gains exposure by using in-kind redemptions to eliminate stocks with high built-in capital gains from the portfolio. This advantage gives our Vanguard ETFs management team more flexibility in implementing tax-management strategies.
For example in 2013, both the Vanguard Total Bond Market Index mutual fund (VBMFX) and ETF version Vanguard Total Bond Market ETF (BND) distributed a small long-term capital gain 0.076% of NAV.
Bottom line: If you hold passively-managed index funds, it really won’t matter much tax-wise if you pick ETF or mutual fund. If you hold Vanguard funds, it won’t matter at all. There are other factors like expense ratio differences or intra-day pricing availability that may sway you to either mutual fund or ETFs.
If you hold actively-managed funds, you will be less tax-efficient and that will be an additional drag on performance unless you hold them in tax-advantaged accounts.









How time flies. Almost exactly 5 years ago on November 21st, 2008, I was sitting alone in yet another hotel on a business trip in a city that I can’t even remember. CNN was on TV as I wrote the following in a blog post with the title
Speaking of holding municipal bonds, I’ve been catching up on the troubles in Detroit and Puerto Rico. Last month, there was a flurry of articles warning about mutual funds with high exposure to Puerto Rico bonds, as they were yielding over 9% and trading at 60 cents on the dollar. Most junk corporate bonds don’t yield that much! Yet, they still clung to investment-grade status from the major ratings agencies because if they went any lower, the bonds would crash as many mutual funds would be then forced by their mandates to sell the bonds. Don’t you love ratings agencies?
I would characterize my personal portfolio as 85% passive, 15% active, and 100% low-cost. Why is part of my portfolio managed by people trying to generate “alpha”? Aren’t I supposed to say that index funds are always better? Author and money manager Rick Ferri has a good post about When Active Funds Makes Sense, even he is a well-known index fund advocate.
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