Definition
Sukuk (صكوك, singular sakk) are Islamic investment certificates representing proportionate ownership in a real underlying asset, project, or business activity. They are often described as the Shariah-compliant alternative to conventional bonds — but the structural difference is sharp. A bond is a debt instrument paying interest; a sukuk is a partial-ownership claim in a productive asset, with returns derived from that asset's cash flows.
AAOIFI Shariah Standard No. 17 catalogues the major sukuk types: ijarah sukuk (lease-based), mudarabah sukuk (profit-sharing-based), musharakah sukuk (partnership-based), istisna' sukuk (manufacturing/construction-based), and several others. Each must satisfy specific structural conditions to remain Shariah-compliant — particularly the requirement that the sukuk certificate represent a real underlying asset, not merely a synthetic debt obligation dressed up in Islamic-finance vocabulary.
Why sukuk matters for tokenisation
Tokenised sukuk are an active area of research and pilot deployment in 2024-2026:
- Bahrain and the UAE (DIFC, ADGM) have hosted Shariah-compliant tokenised sukuk pilots
- Malaysia's Securities Commission has approved digital sukuk frameworks under its Capital Markets and Services Act
- Several sovereign sukuk issuers have explored tokenised secondary trading
A tokenised sukuk that genuinely represents proportionate ownership in a real underlying asset can be Shariah-compliant. The Shariah analysis is not about whether the wrapper is on-chain or off-chain — it is about whether the underlying represents real productive economic activity and whether the cash flows are genuinely tied to that activity rather than to interest-bearing debt.
Why most "DeFi yield" tokens are NOT sukuk
A common misunderstanding is that any tokenised return-generating instrument is sukuk-equivalent. It is not. The substance-over-form principle (one of the foundational rules in AAOIFI Standard 17) penetrates the wrapper. A DeFi protocol that lends customer deposits at variable interest rates and tokenises the deposit receipt is not issuing sukuk — it is issuing tokenised participation in an interest-bearing lending pool. The structural identity is debt-with-interest, regardless of the on-chain wrapper.
This is also why HalalCrypto's screening framework is sceptical of "DeFi yield" tokens. The wrapper does not change the underlying; the underlying determines the Shariah status. Genuine tokenised sukuk from regulated issuers (when they emerge in deeper markets) may pass our screen; speculative DeFi yield instruments typically do not.
Where sukuk-related instruments may enter our universe
We do not currently include sukuk tokens or sukuk-like structures in any tier's trading universe — not because they are categorically excluded, but because the universe of properly-issued, properly-screened, sufficiently-liquid tokenised sukuk on the spot markets we trade (Binance, Bybit, OKX, Kraken) is too small to support our volume and concentration constraints. As the market matures and regulated tokenised sukuk meet our liquidity and transparency thresholds, they would be evaluated under the same four-gate screening process every asset undergoes.
For the screening methodology, see the halal methodology page.