Sukuk

Islamic finance prohibits riba — interest — so a conventional bond, which is a loan at interest, is not available. A sukuk delivers a similar economic result through a different legal structure.

Instead of lending money, the investor buys a share of an actual asset and receives the income that asset produces:

• A special purpose vehicle buys a building, an aircraft or a portfolio of assets using investors' money.
• The vehicle leases the asset back to the originator, which pays rent.
• The rent is distributed to certificate holders. At maturity the asset is repurchased and the principal returned.

The cash flows look like a bond's coupons and redemption. The legal claim does not: sukuk holders own an interest in property that produces rent, rather than holding a debt claim on a borrower.

The main structures

• Ijara (lease) — the classic. Assets leased back, rent distributed. The most transparent link between certificate and asset.
• Murabaha (cost-plus sale) — assets sold at a marked-up deferred price. Widely used but debt-like, and generally not tradeable at anything other than par in stricter interpretations.
• Wakala (agency) — an agent invests in a pool of compliant assets on investors' behalf and targets a return.
• Mudaraba / Musharaka (partnership) — genuine profit-and-loss sharing. Closest to the underlying principle, least common in practice, because investors want bond-like certainty.

What compliance requires

Asset-backed versus asset-based — the distinction that matters

Most sukuk are asset-based: the assets provide the compliant form, but on default investors have recourse to the originator, ranking alongside its unsecured creditors. A minority are genuinely asset-backed, with a true sale and real recourse to the asset itself. The documents read similarly; the outcomes in a default do not.

Pricing: the same machinery, a different label

An asset-based sukuk is valued exactly like the issuer's conventional debt — discount the scheduled distributions on the issuer's credit curve. Where a conventional comparable exists, sukuk typically trade a few basis points inside it, reflecting a dedicated Islamic investor base with limited compliant alternatives. That spread is a demand-driven technical, not a credit judgement, and it compresses or vanishes when Gulf issuance is heavy.

The structural risks that have actually bitten

• Enforcement uncertainty. Restructurings in the Gulf have repeatedly turned on whether investors owned the assets or merely had a contractual claim to their proceeds — often resolved in local courts, under law and precedent unfamiliar to international creditors.
• Sharia risk. A structure approved by one scholarly board may be criticised by another, and standards have tightened over time. A 2008 ruling that many partnership-based sukuk did not meet profit-and-loss-sharing requirements reshaped the market's structure mix within a year.
• Liquidity. Sukuk are disproportionately held to maturity by Islamic banks needing compliant liquid assets. Secondary trading is thinner than size suggests, and the spread cost of exiting is correspondingly higher.
• Restructuring is genuinely harder. Standstills and coupon deferrals that are routine in conventional debt may conflict with the structure's compliance, narrowing the available options.

Why it is in a global atlas

The market is large enough to sit in mainstream emerging-market indices, and is bought by conventional investors who never think about compliance. It also functions as a clean case study in a general principle: the economic payoff and the legal claim are different objects, and only the second one matters after a default. The same lesson runs through credit-linked notes and securitisation.

The formulas above are standard textbook formulations, simplified for teaching. They explain the mechanism — they are not a valuation tool, and they will not reproduce a dealer’s price.