Trading commissions are only one component of total cost for ETF investors.
Over the past few months, some trading platforms have explicitly lowered investors' ETF costs by waiving trading commissions on a select few products. Charles Schwab launched eight of its own low-cost ETFs that can be traded for free on their own platform, and Fidelity recently partnered with iShares to bring 25 widely held ETFs to its users without the burden of an $8 fee per position entry or exit.
One thing is clear: Eliminating trading costs is an effective, transparent, and easy-to-quantify way to lower costs. Furthermore, over the long haul, keeping costs as low as possible--in tandem with proper asset allocation and realistic expectations--is perhaps the most effective way to meet your investment goals. In this regard, we have nothing but praise for these platform providers who are helping investors keep more of their own money.
Mutual Fund Benefits for Your ETFs?
Take the Fidelity move, for example. It is especially helpful for investors who have already decided that a broadly diversified portfolio of iShares ETFs is right for them, and they intend to continue making regular contributions to their portfolio. If investors continue making monthly contributions of $1,000 to any one of these funds, their annual returns increased by just $96 per year, or roughly 0.83%. Compounded over several years, these savings become a material benefit. Furthermore, that same investor can now take that same $1,000 per month, divide it up among any of the 25 offerings from iShares, and still pay no commission. Those investors no longer have to endure a suboptimal asset allocation because of prohibitive trading costs. Prior to the commission waiver, if you were making a single contribution to 10 different funds per month, you would have suffered from a $960 drag on $12,000 of contributions. Paying 8% in fees on your annual contributions is definitely one way to impair your long-term performance.
Of course, that same investor could have been using index mutual funds, which are widely available and have long been available without commission fees. But using mutual funds in a taxable account means that you would be sacrificing the great tax benefits and intraday liquidity that ETFs provide. In regard to investors making frequent contributions, the commission waiver puts the two products on equal footing from a contribution standpoint, and I believe that the product structure differentiation will translate into many investors now choosing ETFs over index funds.
Taxes, Liquidity, and More Still Matter
However, the Fidelity move does not necessarily mean that investors should drop their existing holdings and switch to an all ETF portfolio right away. The tax consequences of selling current holdings would likely dwarf the miniscule tax-efficiency benefits that cap-weighted ETFs hold over similarly structured mutual funds, if you are fortunate enough to have long-term capital gains on your current holdings. Furthermore, even if you are an existing Fidelity customer, always choosing an iShares product over other ETF offerings is likely not as clear-cut as it appears.
Commissions are but one component of total costs. Liquidity is also an important factor because more widely traded funds tend to have tighter bid/ask spreads and to trade closer to net asset value than competing products. In this regard, iShares funds tend to be some of the most liquid funds available. The other major component of total costs is the management fee of the fund.
Like commissions, all-in management fees on most cap-weighted equity-based index ETFs are easy to quantify. All else equal, choosing the fund with the lowest cost will translate into higher investor returns. Now that Fidelity and Schwab clients can trade some funds without commissions, but some similarly structured ETFs are available with lower management fees, which funds should they choose? Like most things in investing, the answer is, it depends.
For comparison's sake, we compiled a table listing most of the equity-based iShares funds that Fidelity investors can purchase commission-free and paired them with what we deem to be the most similar fund provided by Vanguard. In some cases, the two ETFs compared replicate the same index. In other cases, the funds compared have portfolios that are nearly identical. We chose Vanguard because of its multidecade record of keeping costs lower than the competition. In no way are we saying that other providers, most notably State Street Global Advisors via its SPDR lineup, do not have funds that would compare favorably with either of these providers in some instances. That said, check out the results.