Settlement Clearing

You'll reach for this when you're building back office systems or debugging why trades aren't settling on time. It covers the full settlement chain: T+1 compliance workflows, DTCC clearing infrastructure (DTC, NSCC, FICC), continuous net settlement netting, and institutional trade processing from affirmation through matching. The depth on settlement fails is solid, including Reg SHO Rule 204 buy-in procedures and fail reduction strategies. It also handles the messy edge cases like when-issued trades, corporate actions hitting pending settlements, and the FX funding gap that emerged when US markets moved to T+1 in May 2024. If you're working on anything touching post-trade operations or investigating why your firm's fail rate spiked, this gives you the operational context and regulatory framework you need.

skills.sh installs: 706
GitHub stars: 224
last updated: Aug 21, 2026

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Install

$ npx -y skills add joellewis/finance_skills --skill settlement-clearing --agent claude-code

Installs into .claude/skills of the current project.

Files

Settlement & Clearing

Core Concepts

Settlement Cycle

The settlement cycle defines the number of business days between trade date (T) and settlement date (S), during which the buyer must deliver payment and the seller must deliver securities. The settlement cycle has shortened over time to reduce counterparty risk and systemic exposure.

SKILL.md on GitHub

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