iShares ESG Advanced MSCI USA ETF (USXF)
USXF is the iShares answer to investors who want broad US stock exposure but filtered for companies that score well on environmental, social, and governance (ESG) metrics. Instead of holding all thousand-plus US companies in the broader market, USXF starts with the MSCI USA Index and applies an exclusion and quality screen: companies that fall below certain ESG thresholds are removed or underweighted, while those with stronger ESG scores are overweighted. The result is a portfolio that keeps the diversification of a broad index — sectors, sizes, geographies — but tilts toward companies that, in theory, are managing their environmental impact, labor practices, and governance more prudently.
The ESG screen in practice
ESG investing means different things to different people. BlackRock’s approach through USXF is systematic: MSCI, the index provider, assigns each company environmental, social, and governance scores based on hundreds of data points — carbon emissions, labor practices, board composition, executive pay alignment, product safety records, and much more. USXF then applies two filters. First, it excludes outright certain sectors and behaviors: thermal coal producers, controversial weapons makers, companies deeply involved in fossil-fuel extraction or power generation. Second, it underweights companies with poor ESG rankings within allowed sectors and overweights those with higher scores. A traditional energy company might be included if its ESG profile is strong relative to peers, but a coal miner would be excluded no matter what.
This is not the same as investing only in “green” companies. USXF still holds oil majors, financial services firms, and industrial manufacturers. It filters on how they are run and what impact they acknowledge, not on whether their industry exists. For some investors, that is exactly the right balance. For others who want fossil fuels out entirely, it is a compromise.
How it differs from the broad market
Because it excludes or downweights certain companies and sectors, USXF does not perfectly mirror the overall US stock market. Companies with weaker ESG scores are either missing or smaller in the portfolio, which can create meaningful differences in returns over time. Historically, this has sometimes meant USXF outperforms the broader market (when ESG-conscious companies are in favor) and sometimes underperforms (when cheap, traditional industries like energy lead). The fund’s prospectus and fact sheet show the holdings and weightings; comparing them to a pure broad-market index shows where the divergence lies.
Sector concentration is the clearest difference: USXF typically owns less energy and materials than the S&P 500 or a total-market index. Conversely, it may overweight consumer discretionary, tech, and healthcare — sectors where ESG compliance is often easier or more visible. That shift is intentional but it does mean the fund is not a true market-weight portfolio; it is tilted toward sectors and companies that score higher on ESG criteria.
Costs and liquidity
iShares is one of the largest ETF sponsors in the world, and USXF benefits from that scale: the expense ratio is typically 0.08% or less, competitive with most broad US index funds. The fund trades on NASDAQ with high volume and tight spreads, so buying and selling shares is frictionless. Dividends from the holdings are reinvested or paid out depending on your account type, and as a US-equity fund, USXF’s dividends are eligible for favorable tax treatment in taxable accounts (though that depends on holding periods and other rules). The fund is fully transparent: the holdings are posted daily, and anyone can see exactly which companies USXF owns and in what proportion.
The risk and reality of ESG scoring
ESG scores are not neutral facts — they reflect value judgments about which environmental, social, and governance practices matter most. Different rating agencies assign quite different scores to the same company, and the weights they apply to each factor vary. A company might score high on one agency’s ESG ranking and middle-of-the-pack on another’s. USXF relies on MSCI’s scoring, which is credible but not universally agreed to be the “right” way to measure ESG quality. Investors who believe MSCI’s weights and criteria are correct will feel USXF is doing what it promises. Those who think ESG ratings are gamed or mismeasured might view the fund as paying extra complexity for a screen that does not capture true impact.
Another real risk is that ESG performance is cyclical. In periods when investors pile into high-ESG-score companies, the fund benefits. When the market rotates back to cheap, traditional businesses, USXF lags. This factor tilting can amplify downturns if ESG-score companies fall out of favor all at once.
Who USXF is for and research pathways
USXF is for investors who want US broad-market equity exposure but believe ESG quality matters for both performance and real-world impact, and who trust MSCI’s methodology to identify companies with genuinely stronger practices. It is not for pure market-weight indexers (who would choose a total-market fund with no filters) and not for investors with strong convictions about which ESG criteria should drive decisions (who might prefer a more specialized fund or manual portfolio).
To research USXF, start with the prospectus and the fund fact sheet, which detail the index construction and the fund’s holdings. Compare the top holdings to a broad-market fund to see which companies are overweighted or missing. Read MSCI’s methodology documents to understand how ESG scores are calculated and which factors drive inclusion or exclusion. Finally, think hard about whether you trust ESG ratings as meaningful or whether you believe they are window-dressing — that conviction will shape whether USXF aligns with your goals.