# Fsi Command Analyze Bond Basis

> Use when financial-services work requires analyze the bond futures basis with CTD identification, implied repo rate, and basis trade assessment.

- Skill: `changhochien/fsi-command-analyze-bond-basis` (Agent Skill)
- Install (CLI): `npx skillmds@latest add changhochien/fsi-command-analyze-bond-basis`
- Raw SKILL.md: https://api.skillmd.com/api/skills/changhochien/fsi-command-analyze-bond-basis/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- License: MIT
- Author: changhochien (https://skillmd.com/u/changhochien)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/changhochien/fsi-command-analyze-bond-basis

---


# FSI Command: /analyze-bond-basis

## Overview
This is the Hermes profile equivalent of the original Cowork slash command `/analyze-bond-basis` from `lseg`. Invoke it explicitly with `/skill fsi-command-analyze-bond-basis` or ask in natural language for this workflow.

## When to Use
- Use when the user asks for `/analyze-bond-basis` or a analyze bond basis financial-services workflow.
- Use when the user wants the command procedure rather than a free-form answer.

## Command Procedure

# Analyze Bond Futures Basis

> This command uses LSEG bond future pricing, bond pricing, yield curves, and historical data tools. See [CONNECTORS.md](../CONNECTORS.md) for available tools.

Analyze the bond futures basis by pricing the future, identifying the cheapest-to-deliver bond, computing gross and net basis, and assessing basis trade opportunities.

See the **bond-futures-basis** skill for domain knowledge on basis mechanics and trading strategies.

## Workflow

### 1. Gather Input

Ask the user for:
- Bond future RIC (required) — e.g., FGBLc1 (Euro Bund), TYc1 (US 10Y Note), FFIc1 (UK Gilt)
- Market data date (optional, defaults to today)

### 2. Price the Bond Future

Call `bond_future_price` with the future RIC.

Extract: fair price, CTD bond identifier, delivery basket with conversion factors, contract DV01, delivery dates.

### 3. Price the CTD Bond

Call `bond_price` for the CTD identifier from Step 2.

Extract: clean/dirty price, yield, duration, DV01, accrued interest, coupon.

Compute: gross basis, invoice price, carry, net basis.

### 4. Compute Implied Repo Rate

Call `interest_rate_curve` (list then calculate) for the future's currency. Use short-end rate as repo proxy.

Compute implied repo rate and compare to market repo.

### 5. Track Historical Basis

Call `tscc_historical_pricing_summaries` for both the future and CTD bond with `tenor: "3M"`, `interval: "P1D"`.

Assess: basis trend, volatility, and historical range.

### 6. Sovereign Credit Context

Call `credit_curve` for the relevant sovereign (e.g., "DE" for Bund, "US" for Treasury).

### 7. Synthesize the Report

Present: future summary table, CTD bond analytics, basis calculation table (gross/net basis, implied repo vs market repo), historical context, and trade recommendation (long basis / short basis / neutral).

## Output Format

Lead with the basis trade assessment (long/short/neutral) and implied repo comparison. Follow with detailed analytics tables.

## Hermes Invocation
- Explicit: `/skill fsi-command-analyze-bond-basis`
- Natural language: “Use the analyze-bond-basis command workflow for ...”

## Verification Checklist
- [ ] The command intent, inputs, and output format are confirmed.
- [ ] The output cites sources or clearly labels assumptions.
- [ ] The final artifact is marked draft / for human review when appropriate.