A strong Fidelity Roth IRA usually starts with a low-cost core: a total US stock ETF like ITOT, a total international fund, and a bond holding, with optional growth or dividend tilts on top. Because a Roth grows and pays out tax-free, it is a sensible place to hold your highest-growth assets over decades.
Key takeaways
- Fidelity runs $0 online commissions on US-listed ETFs, so you can build a Roth from iShares, Vanguard, and Fidelity's own ETFs in the same account.
- Some of Fidelity's most popular "Roth building blocks" are mutual funds, not ETFs. FZROX, FXAIX, and FSKAX are index mutual funds. That is fine inside an IRA, but they are not ETFs and cannot be transferred in kind to another broker.
- Fidelity's own ETF lineup includes sector and factor funds like FTEC, FREL, and FDVV. For a plain total-market or S&P 500 core, the cheapest ETFs come from iShares (ITOT, IVV) and Vanguard (VTI, VOO).
- A Roth's tax-free growth favors high-compounding and high-yield holdings, since neither the growth nor qualified withdrawals get taxed.
- Expense ratios below are drawn from issuer and Fidelity data as of August 2026. Confirm the current figure on the fund's page before you buy, since these change.
Fidelity Roth IRA building blocks
The table separates actual ETFs from index mutual funds on purpose. A mutual fund can sit in a Roth just fine, but calling it an ETF is wrong, and the two behave differently on pricing and portability.
| Ticker | What it holds | Type | Expense ratio | Role in a Roth |
|---|---|---|---|---|
| ITOT | Total US stock market (iShares) | ETF | 0.03% | Core US equity |
| IVV | S&P 500 large caps (iShares) | ETF | 0.03% | Core US equity, S&P 500 version |
| VTI | Total US stock market (Vanguard) | ETF | 0.03% | Core US equity alternative |
| VOO | S&P 500 large caps (Vanguard) | ETF | 0.03% | Core US equity, S&P 500 version |
| IXUS | Total international stocks (iShares) | ETF | 0.07% | International diversification |
| AGG | US investment-grade bonds (iShares) | ETF | 0.03% | Bond ballast |
| FDVV | High-dividend US and developed stocks (Fidelity) | ETF | 0.15% | Optional dividend tilt |
| FTEC | US information technology sector (Fidelity) | ETF | 0.08% | Optional growth satellite |
| FREL | US real estate and REITs (Fidelity) | ETF | 0.08% | Optional real estate satellite |
| FZROX | Total US stock market (Fidelity) | Mutual fund, not an ETF | 0.00% | Zero-fee core, Fidelity-only |
| FXAIX | S&P 500 large caps (Fidelity) | Mutual fund, not an ETF | 0.015% | S&P 500 core |
| FSKAX | Total US stock market (Fidelity) | Mutual fund, not an ETF | 0.015% | Total-market core |
| FXNAX | US investment-grade bonds (Fidelity) | Mutual fund, not an ETF | 0.025% | Bond ballast |
A note on the Fidelity ZERO funds: FZROX and FZILX charge a true 0.00% expense ratio, which is genuinely rare. The trade-off is that they are proprietary Fidelity mutual funds. You cannot transfer them in kind to another brokerage, so leaving Fidelity means selling first. Inside a Roth that sale is tax-free, which softens the downside, but it is worth knowing before you commit a whole portfolio to them.
A sample core-satellite portfolio
This is one illustration of a moderate-risk, mostly-stock allocation, not a recommendation. Adjust the stock and bond split to your age and risk tolerance.
- 55% ITOT or FZROX for the total US market core
- 20% IXUS for international stocks
- 15% AGG or FXNAX for bonds
- 5% FDVV as a dividend tilt
- 5% FTEC or FREL as a growth or real estate satellite
The core-satellite idea is simple. The core (the first three lines) does most of the work at rock-bottom cost. The satellites are small, optional tilts you add only if you have a view and can stomach the extra volatility.
Why a Roth favors your highest-growth holdings
In a Roth IRA, qualified withdrawals in retirement are tax-free, and there are no taxes on dividends or capital gains along the way. That changes what belongs there. Assets you expect to compound the most over decades, and high-yield holdings that would otherwise generate a taxable income drag, get the most benefit from tax-free treatment. Many investors deliberately place their more aggressive growth exposure in the Roth and keep steadier, lower-return holdings in taxable or traditional accounts. This is asset location, and it only helps at the margin, so do not let it push you into holdings that are riskier than you actually want.
For the bigger picture on where a Roth fits alongside your other accounts, see our retirement planning hub and our broader investing guides. If you are weighing a value tilt for part of the equity sleeve, our breakdown of the Vanguard S&P 500 Value ETF covers the trade-offs.
The bottom line
This article is educational, not personalized investment advice. Expense ratios, fund lineups, and contribution limits change, and the right mix depends on your age, income, tax situation, other accounts, and risk tolerance. Verify every ticker and expense ratio on the fund's own page before investing, and consider talking to a fee-only fiduciary advisor about your specific situation.
Frequently asked questions
What ETFs make a good Fidelity Roth IRA core?
A strong core usually starts with a total US stock ETF like ITOT (0.03%), a total international fund like IXUS (0.07%), and a bond holding like AGG (0.03%), with optional growth or dividend tilts on top. Fidelity runs $0 online commissions on US-listed ETFs, so you can build from iShares, Vanguard, and Fidelity's own ETFs in the same account.
Are FZROX and FXAIX ETFs?
No, FZROX, FXAIX, and FSKAX are index mutual funds, not ETFs, though they sit in a Roth just fine. The distinction matters for portability: proprietary Fidelity funds like FZROX cannot be transferred in kind to another broker, so leaving Fidelity means selling first. Inside a Roth that sale is tax-free, which softens the downside.
Why does a Roth IRA favor your highest-growth holdings?
Because in a Roth qualified withdrawals are tax-free and there are no taxes on dividends or capital gains along the way, so assets you expect to compound the most over decades, and high-yield holdings that would otherwise create a taxable drag, get the most benefit. This is asset location. It only helps at the margin, so do not chase holdings riskier than you want.
What is a sample core-satellite Roth IRA portfolio?
One illustration is 55% ITOT or FZROX for the total US core, 20% IXUS for international, 15% AGG or FXNAX for bonds, 5% FDVV as a dividend tilt, and 5% FTEC or FREL as a growth or real estate satellite. The core does most of the work at rock-bottom cost, and the satellites are small optional tilts you add only if you have a view.