Engineering capital cycles: why a 90-day process becomes a 48-hour pipeline

The 90-day capital cycle is not a feature of capital markets. It is an artifact of the underwriting process developed when the fastest available channel was a fax machine and the canonical record was a printed binder. Every step of the legacy cycle assumes asynchronous, document-driven coordination between four to six external counterparties. The structure has not changed materially in three decades.

What the cycle actually does

Strip the conventions back and the cycle performs five operations. It scopes the deal. It collects evidence supporting that scope. It structures the legal and economic terms. It moves capital. It produces an audit trail. None of these operations is fundamentally slow. The slowness is in the handoffs between counterparties and in the absence of a shared substrate for evidence.

What we replace

• Document-driven underwriting becomes evidence-graded scoring against a shared data model.
• Manual term-sheet revision becomes parameterized smart-contract scaffolding with covenant templates.
• Wire-based settlement becomes programmable settlement on RWA rails with attestation receipts.
• Monthly reporting becomes continuous on-chain ledger writes with off-chain audit replay.
• Quarterly reconstruction of audit trail becomes real-time, attestation-based proofs.

What we keep

The legal substance does not change. Covenants are still negotiated. Diligence findings are still memorialized. Reporting still satisfies LP and regulatory obligations. What changes is the operational fabric underneath those workflows. The output of a Nebula engagement is rails the client owns and operates inside its existing stack, not a vendor product the client subscribes to.

Why this matters now

Compression of the capital cycle changes the economics of two specific opportunities. First, it makes short-duration credit more competitive against bank balance sheets. Second, it makes mid-stack RWA financing structurally more attractive to issuers that previously absorbed the 90-day cost as a tax on capital access. Allocators paying attention to either will benefit from operating rails that match the speed of the underlying opportunity.