Best Fidelity ETFs

Fidelity made its low-cost reputation on index mutual funds, not exchange-traded funds. Its single most-held fund, FXAIX, is an S&P 500 index mutual fund at about 0.015%, and its headline-grabbing ZERO funds are mutual funds too. That matters because mutual funds and ETFs behave differently: a mutual fund prices once a day at the closing net asset value, trades only at Fidelity for the proprietary ones, and does not get the in-kind tax efficiency an ETF does. An ETF trades intraday on an exchange, is portable to any broker, and tends to throw off fewer taxable capital-gains distributions.

So when people ask for the “best Fidelity ETF,” the most accurate answer is usually a Fidelity index mutual fund, with a handful of real ETFs (FTEC, FBND, FDVV, FENY) covering sectors and factors. This guide names both plainly and flags which is which, because the structure changes how a fund fits a taxable account versus an IRA. For the framework on choosing between near-identical funds, see our how to compare ETFs guide.

The Fidelity ZERO funds are index mutual funds that charge a 0.00% expense ratio, which is their headline feature. FZROX (Fidelity ZERO Total Market Index) holds essentially the entire US stock market. FNILX (Fidelity ZERO Large Cap Index) holds US large-caps, an S&P 500-like slice that uses Fidelity's own index rather than the licensed S&P 500. FZILX (Fidelity ZERO International Index) covers non-US developed and emerging markets. There is also FZIPX (ZERO Extended Market) for mid- and small-caps. All four cost 0% because Fidelity uses proprietary indexes to skip licensing fees.

The trade-offs are real. The ZERO funds live only inside a Fidelity account: they have no ticker you can trade elsewhere and do not transfer in kind if you move brokers, so leaving Fidelity means selling them and potentially realizing gains. As mutual funds they also lack the in-kind tax efficiency of an ETF, which makes them a cleaner fit in a tax-advantaged account like an IRA than in a taxable one. Because they track custom indexes, they can diverge very slightly from FXAIX or VOO, though in practice the difference is minor.

Outside the ZERO lineup, Fidelity runs a set of standard low-cost index mutual funds that map cleanly to the jobs in a portfolio. FXAIX (500 Index) tracks the S&P 500 at about 0.015%, the most popular Fidelity fund and the direct analog to VOO. FSKAX (Total Market Index) holds the whole US market, adding the mid- and small-cap tail, the analog to VTI. FTIHX (Total International Index) covers non-US developed and emerging markets, the analog to VXUS. FXNAX (US Bond Index) holds the total US investment-grade bond market, the analog to BND.

These differ from the ZERO funds in two ways: they carry a tiny fee (roughly 0.015% to 0.06%) but track standard licensed indexes, and FXAIX in particular is available to more accounts and plans. A common Fidelity-only core is FXAIX or FSKAX for US stocks, FTIHX for international, and FXNAX for bonds, the mutual-fund mirror of a VTI-plus-VXUS-plus-BND portfolio. For the full cross-provider category map, see our best ETF in every category guide.

For its true ETFs, Fidelity focuses on sectors and factors rather than broad-market cores. FTEC (MSCI Information Technology Index ETF) holds the US technology sector at about 0.084%, the Fidelity answer to VGT or XLK, heavy on Apple, Microsoft, and Nvidia. FDVV (High Dividend ETF) screens for higher-yielding US companies with a quality tilt, the Fidelity counterpart to SCHD or VYM. FENY covers the energy sector, and Fidelity runs a full set of single-sector ETFs (financials, health care, and more) for investors who want to tilt by industry.

Fidelity also offers FBND (Total Bond ETF), an actively managed broad bond ETF that is the ETF alternative to the FXNAX index mutual fund. These sector and factor ETFs are tilts layered on a broad core, not replacements for it: stacking FTEC on top of FXAIX, for example, mostly doubles up the same mega-cap technology names you already own through the S&P 500. They are bets on a slice of the market, useful in moderation.

The honest framing matters here: for the big categories, Fidelity is not uniquely the best, because its funds are near-identical to the competition. FXAIX and VOO and IVV all track the S&P 500; FSKAX and VTI and ITOT all hold the total US market; FTIHX and VXUS both hold total international; FXNAX and BND and AGG all hold the total US bond market. The expense-ratio gaps are tiny, often a hundredth of a percent, and the ZERO funds shave that to zero. The holdings and long-run returns are effectively the same.

What differs is structure and portability. Fidelity's flagships are mutual funds, so they price once a day, some are Fidelity-only, and they carry the mutual-fund tax drawback in a taxable account. Vanguard and iShares equivalents like the best Vanguard ETFs (VOO, VTI, VXUS, BND) are ETFs: portable to any broker, traded intraday, and more tax-efficient. So if you already use Fidelity as your brokerage, its funds are an excellent and cheap way to fill each slot; if you value portability and taxable-account efficiency, the ETF equivalents have an edge. For the S&P 500 slot specifically, see our best S&P 500 ETFs guide.

Costs and structures are approximate as of early 2026; verify the current figures on Fidelity's site. The ZERO funds (FZROX, FNILX, FZILX) and the index funds (FXAIX, FSKAX, FTIHX, FXNAX) are mutual funds; FTEC, FDVV, and FBND are ETFs. The right-hand column shows that for the big categories the Fidelity fund and its Vanguard or iShares equivalent are nearly the same product. Pick the job first, then the fund and structure that fit your account.

Narrowing Fidelity's lineup to the fund for each job is the easy part. The harder step is deciding how these fit with what you already own, especially if your holdings are spread across a Fidelity account and others, because stacking FXAIX, FTEC, and a separate VOO, for example, mostly triples the same US large-caps rather than diversifying. That is the part an AI assistant can actually help with, because it can reason over your real holdings rather than a generic list. The useful questions are specific: does this Fidelity fund overlap with what I already hold, does it fill the slot I am trying to fill, and how has it done against the S&P 500.

That is where Walnut fits. It connects your existing brokerage through SnapTrade and lets you ask, in plain language through Claude, ChatGPT, or a built-in assistant, which Fidelity fund fits a given role, how much a new fund overlaps with what you already own, and how each position is doing against the market. It is read-only by default, and you approve any trade. Walnut is not an investment adviser; it helps you see and act on your own portfolio rather than telling you what to buy.

The point of looking at the best Fidelity funds by job is to stop hunting for one winner and notice that Fidelity's strength is index mutual funds, not ETFs. For a US core, FXAIX (S&P 500) or FSKAX (total market), or the 0% ZERO funds FZROX and FNILX; for international, FTIHX or the ZERO fund FZILX; for bonds, FXNAX or the FBND ETF; for sector and factor tilts, the FTEC and FDVV ETFs. The honest framing: these are near-identical to the Vanguard and iShares equivalents (VOO, VTI, VXUS, BND), so Fidelity is a great brokerage with great, cheap funds, not a fund family that is simply best, and the job decides far more than the brand.

From a connected account you can dig into any of these as an ETF, look at an individual stock one of them holds, or explore a theme you want exposure to. Holdings, fees, and fund structures change over time; treat the specifics here as a starting point and confirm on Fidelity's site before deciding.