Is FXAIX (Fidelity 500 Index Fund) Halal?

Do the halal screening authorities agree?

How we read the evidence

HalalWallet's editorial synthesis of the screens, scholar positions, and sources documented on this page - not a religious ruling.

FXAIX matters more than almost any other fund in this series because of where it lives: inside Fidelity-administered 401(k) plans, where it is often the default S&P 500 option — sometimes the default option, period. At roughly $833 billion in assets with a 0.015% expense ratio, the Fidelity 500 Index Fund is arguably the single most efficient way to own the American stock market. It is also unscreened, and that settles the Shariah question.

The S&P 500 is a market-cap-weighted list of the largest US companies with no religious or ethical filter. As of September 2026, financials — conventional banks, insurers, consumer-credit companies whose core business is interest — made up 12.3% of the index (State Street data). Add the alcohol producers, casino and betting-adjacent names, and conventional-defense contractors, and a meaningful slice of every FXAIX share is ownership in businesses the AAOIFI business-activity screen excludes categorically. The fund also earns interest on its uninvested cash. Under AAOIFI Standard 21 — the framework FCNA's US guidance mirrors with its 30% debt, 30% interest-bearing-securities, and 5% impure-income thresholds — the fund fails at the first layer, before ratios are even computed.

The honest nuance, consistent with our VOO and SPY verdicts: index investing is not the problem. Around two-thirds of S&P 500 constituents pass Shariah screens individually, and passive, low-cost, diversified investing is arguably the most fiqh-friendly investment philosophy ever mass-produced — real ownership, no leverage, no speculation on derivatives. The problem is the unscreened wrapper. A mutual fund share is an undivided interest in the whole portfolio; you cannot own FXAIX's Apple and Microsoft without also owning its JPMorgan and Aflac. Purification (donating impure income) handles incidental interest inside otherwise-compliant companies — it cannot retroactively excuse deliberate ownership of impermissible businesses.

What makes this verdict practical rather than punishing is that the screened version of the same idea exists. SPUS applies Shariah industry exclusions and ratio screens to the S&P 500 itself, holding the ~200-220 names that pass; it managed about $3.1 billion at a 0.45% fee as of August 2026. HLAL does the same job on the FTSE USA universe. The 0.435-percentage-point fee gap versus FXAIX is the real, quantifiable cost of compliance — about $44 a year per $10,000 invested — and it is the honest trade-off to present.

The hardest case is the investor whose 401(k) menu offers FXAIX and nothing screened. The sequence there: check for a self-directed brokerage window (Fidelity's BrokerageLink often allows SPUS/HLAL inside the plan); if none exists, scholars permit participating under necessity with purification of the non-compliant share of gains — and in nearly every analysis, capturing the employer match remains worth it. What the verdict rules out is the comfortable default: treating FXAIX as halal because it is cheap, popular, and mostly compliant. Mostly is the operative word.

Business Activity Screen

A passive mutual fund replicating the S&P 500 — the ~500 largest US companies weighted by market cap — with no Shariah screening. Expense ratio 0.015%; net assets ~$833B (July 2026, Fidelity factsheet).

Holds the index as-is: conventional banks (JPMorgan, Bank of America), insurers, and other companies failing AAOIFI business-activity or financial-ratio screens — financials alone were 12.31% of the index as of Sep 2, 2026 (State Street data) — plus interest earned on uninvested cash. Non-compliant holdings can't be purified away at the fund level.

Scholars' & Screeners' Positions

Published positions, cited as stated. Screeners can reach different conclusions on the same company because of ratio timing and methodology differences - we report the disagreement rather than flatten it.

• AAOIFI screening framework (Shariah Standard No. 21)

  Equity investment requires (1) a permissible core business — excluding conventional banking, insurance, alcohol, gambling, and similar — and (2) financial ratios: interest-bearing debt and interest-bearing securities each below 30% of market capitalization, impermissible income below 5% of revenue, with purification of the impure portion. An unscreened S&P 500 fund fails layer (1) outright through its bank and insurer holdings.

• Fiqh Council of North America

  FCNA's published stock-investing guidance applies the same framework — permissible business activity plus ratio limits (interest-bearing debt and deposits under 30%, purification of interest income) — under which an unscreened broad-market index fund is not compliant.

• Application to index funds (mainstream position)

  The ruling matches the site's verdicts on VOO and SPY: index investing itself is sound and roughly 65-70% of S&P 500 constituents pass screens individually, but a fund that replicates the index unchanged packages compliant and non-compliant companies into a single undivided unit — and the non-compliant portion cannot be separated or purified away by the investor.

Purification

An investor exiting FXAIX should purify gains attributable to the non-compliant portion of the fund. A practical approach used by scholars: donate the share of gains proportional to the index's non-compliant weight during the holding period. Going forward, screened funds report purification amounts for you.

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