Fidelity offers several exchange-traded funds that track the S&P 500, giving investors a low-cost path to own broad US large-cap equity exposure through a single share. These funds combine Fidelity's operational scale with the simplicity of index investing, making them a common choice for both new and experienced investors.
Below is a comparison of key Fidelity S&P 500 products to help you evaluate fees, trading approach, and portfolio role at a glance.
| Fund Ticker | Full Name | ETF Structure | Expense Ratio |
|---|---|---|---|
| FXAIX | Fidelity 500 Index Fund | No ETF, mutual fund share class | 0.015% |
| SPY | SPDR S&P 500 ETF Trust | Traditional CEF-style ETF | 0.0945% |
| IVV | iShares Core S&P 500 ETF | Traditional ETF | 0.03% |
| FZROO | Fidelity ZERO Large Cap Index | Traditional ETF | 0.00% |
| FUSA | {"originalName":"Fidelity S&P 500 Index ETF"}Fidelity S&P 500 Index ETF | 0.008% |
Understanding Fidelity S&P 500 ETF Structures
Fidelity provides multiple ways to access S&P 500 exposure, from no-fee ETFs to commission-free electronic trading shares. Choosing among them depends on whether you prefer a traditional ETF, a no-fee share class, or a platform that integrates deeply with Fidelity tools.
Funds like FUSA and FZROO are structured as exchange-traded products, meaning they trade on exchanges throughout the day and can be bought or sold on margin or sold short. By contrast, FXAIX is a mutual fund share class available only at Fidelity, priced once per day after market close and ideal for dollar-cost averaging.
Because FUSA carries an ultra-low expense ratio and behaves like an ETF, it often appeals to long-term investors who want broad market exposure without paying a premium for structure or active management.
How Fidelity S&P 500 ETFs Track the Index
Most Fidelity S&P 500 funds use full replication, holding all 500 stocks in proportion to their index weight to minimize tracking error. This approach helps keep deviations between fund returns and the benchmark small, which is critical for investors who rely on precise index exposure.
Transaction costs, sampling differences, and currency risk for international holdings can cause slight variance between fund performance and the pure S&P 500. Fidelity's large scale often gives it negotiating leverage with market makers and counterparties, which can reduce these frictions compared with smaller providers.
For tax-aware investors, the fund structure matters. Traditional ETFs like FUSA and IVV typically generate fewer capital gains distributions than mutual funds because of in-kind creation and redemption mechanisms, helping to preserve after-tax returns in taxable accounts.
Platform Integration and Trading Experience
Fidelity leverages its brokerage infrastructure to offer strong platform integration for products like FUSA, including streamlined order types, margin eligibility, and real-time research directly within the account dashboard. Advanced order options and low commissions make entering and exiting positions efficient, especially for active traders who need responsive execution.
Digital clients benefit from automated tools such as recurring purchases, rebalancing alerts, and consolidated reporting that tie S&P 500 exposure to overall portfolio health. These features, combined with zero-fee options, help investors maintain consistent allocation strategies without eroding returns through fees or friction.
Choosing the Right Fidelity S&P 50 Product for Your Goals
Your investment timeline, account type, and preference for automated features should guide whether you choose an ETF like FUSA, a no-fee mutual share class like FXAIX, or a lower-cost alternative like FZROO.
- Define whether you need an ETF for active trading or a mutual fund for systematic investing.
- Compare expense ratios, trading spreads, and platform-specific fees before committing capital.
- Use automatic purchase plans if your goal is long-term accumulation rather than short-term trading.
- Verify tax efficiency by reviewing historical capital gains distributions if the account is taxable.
- Align product choice with overall portfolio allocation and risk management rules.
FAQ
Reader questions
How does FUSA differ from SPY even though both track the S&P 500?
FUSA is a Fidelity proprietary ETF with a 0.00% expense ratio and creation/redemption in shares, while SPY is an older benchmark ETF with a higher expense ratio and traditionally larger bid-ask spreads, making FUSA often cheaper for long-term investors.
Can I use FXAIX instead of an ETF if I invest through Fidelity?
Yes, FXAIX is a no-load mutual fund share class available only at Fidelity that is ideal for investors who prefer automatic pricing at net asset value and regular contribution plans without ETF trading commissions.
Does FUSA pay dividends, and how are they handled?
FUSA distributes dividends received from the S&P 500 stocks, typically on a quarterly basis, and can be reinvested automatically or deposited as cash depending on your account settings.
Is there any tax advantage to holding FUSA instead of a mutual fund like FXAIX in a taxable account?
In taxable accounts, FUSA's ETF structure can generate fewer capital gains distributions than FXAIX due to in-kind creation and redemption, potentially improving after-tax returns over time.