Halal Investing: How Shariah-Compliant Finance Became One of the Fastest-Growing Corners of U.S. Wealth

Halal investing is the practice of building wealth in a way that follows Islamic law (Shariah). It is rooted in three core prohibitions: riba (interest), gharar (excessive uncertainty or speculation), and any business activity considered harmful — alcohol, gambling, pork, conventional banking, weapons, adult entertainment, and tobacco.

Beyond avoiding those industries, Shariah-compliant investing also applies strict financial screens. Companies generally must have total debt below roughly one-third of their market capitalization, limited interest-bearing income (typically under 5% of revenue), and a healthy ratio of receivables to assets. Anything above those thresholds is considered too leveraged or too dependent on conventional finance to qualify.

No interest. Bonds that pay a fixed coupon, savings accounts that pay interest, and traditional mortgages are off-limits. The Islamic alternative — sukuk — represents partial ownership in a real underlying asset and pays returns from that asset, not from interest.

No excessive speculation. Day trading on margin, most options strategies, and highly leveraged derivatives generally fail Shariah review because the outcome is too detached from a productive economic activity.

No harmful industries. Equity screens automatically exclude companies whose primary revenue comes from prohibited sectors. Index providers like S&P Dow Jones, MSCI, and FTSE Russell publish dedicated Shariah indexes that handle this filtering at scale.

Global Islamic finance assets crossed roughly $4.9 trillion in 2023 and are projected to reach about $6.7 trillion by 2027, according to the ICD-LSEG Islamic Finance Development Report. Shariah-compliant funds alone represent a $200+ billion slice of that, growing at a double-digit annual pace — faster than the broader global fund industry.

In the United States, the segment is smaller but accelerating. Estimates from Morningstar and industry trade groups put U.S. Shariah-compliant fund and ETF assets at roughly $5–7 billion, up from under $1 billion a decade ago. The Wahed FTSE USA Shariah ETF (HLAL) and the SP Funds S&P 500 Sharia Industry Exclusions ETF (SPUS) have each grown past $1 billion in assets since launching in 2019.

There are roughly 3.5 million Muslims in the United States, projected to surpass 8 million by 2050 according to Pew Research. That alone is a meaningful pool of investors who have historically been underserved by mainstream wealth platforms.

But halal funds are increasingly being bought by non-Muslim investors as well, for the same reasons people choose ESG strategies: they want to avoid alcohol, tobacco, gambling, weapons, and highly leveraged financials. The screens overlap heavily with values-based investing, which is why SPUS and HLAL appear in growing numbers of retail and 401(k)-adjacent accounts.

Shariah-compliant ETFs. HLAL (Wahed), SPUS and SPSK (SP Funds, U.S. equity and sukuk), and UMMA (Wahed Dow Jones Islamic World) cover U.S. equities, global equities, and Islamic fixed income. Expense ratios generally run 0.45%–0.65%, higher than vanilla index funds but in line with thematic ETFs.

Mutual funds. The Amana family of funds from Saturna Capital is the oldest U.S. Shariah-compliant lineup, dating to 1986, and is widely available in retirement plans.

Robo-advisors. Wahed Invest, launched in 2017, offers fully automated halal portfolios across risk levels with as little as $100 to start. Zoya provides a stock-screening app used by hundreds of thousands of investors to check individual ticker compliance.

Sukuk. Often called Islamic bonds, sukuk represent partial ownership of a tangible, income-generating asset. They behave somewhat like fixed income but are structured around lease, partnership, or trade contracts rather than interest.

Because halal screens exclude conventional banks, most insurance companies, and highly leveraged firms, Shariah-compliant U.S. equity strategies tend to tilt toward technology, healthcare, consumer, and industrials. That tilt helped them outperform the broader S&P 500 during the 2020–2021 tech run, lag during the 2022 energy rally, and broadly track the index over full cycles.

Over the past five years, SPUS has delivered returns within roughly 1–2 percentage points per year of the S&P 500, depending on the measurement window. That is a notable result: a portfolio built with explicit ethical and leverage constraints has not required investors to sacrifice meaningful long-term return.

Higher fees. Shariah-compliant funds typically cost more than equivalent vanilla index funds because of the screening, certification, and purification process (small amounts of incidental non-compliant income are donated to charity).

Less diversification. Excluding financials and highly leveraged firms removes a large slice of the global market, which can produce more concentrated sector bets — particularly toward technology.

Limited fixed income. The sukuk market is small relative to the global bond market, so building a bond-heavy halal portfolio is harder than building one in conventional fixed income.

Islamic finance has historically been concentrated in the Gulf and Southeast Asia, but the fastest percentage growth is now happening in Western markets. U.S. and U.K. asset managers have launched more Shariah-compliant products in the past five years than in the previous twenty combined.

For investors — Muslim or otherwise — the practical takeaway is simple: halal investing is no longer a fringe option. It is a fully built-out, low-friction way to own diversified equities and income assets without interest, leverage, or industries you would rather not finance.