United States
The US has the largest universe of Shariah-compliant listed equities by absolute count: roughly 1,500 names passing the AAOIFI Standard 21 screen across the NYSE and Nasdaq. (These US listings are one slice of invest-like's wider 21,000+ stock universe spanning 33 exchanges in 68 countries.) There is no US regulator dedicated to Islamic finance and no legal recognition of Shariah-compliance as a regulatory category. The SEC regulates US-listed equities uniformly without any Islamic-finance overlay; Shariah-compliance is a private categorisation maintained by individual screening services (invest-like, SP Funds, Wahed Invest) and index providers (S&P Dow Jones Indices, FTSE Russell, MSCI).
US-resident Muslim investors have the widest choice of access methods of any market globally. They can hold individual US-listed equities directly through any US brokerage (Fidelity, Charles Schwab, Robinhood, Interactive Brokers). They can hold halal ETFs (SPUS, HLAL, UMMA, AMZA) on standard brokerage platforms. They can use halal robo-advisors (Wahed Invest, Zoya). The lack of regulatory infrastructure means investors do their own due diligence on which screening standard to follow; the de-facto retail reference is AAOIFI, with DJII/S&P/MSCI as commonly-cited alternatives.