Bond Futures Basis Skill for Claude

Analyze the bond futures basis by pricing futures, identifying the cheapest-to-deliver, and comparing with yield curves to assess delivery option value and basis trading opportunities. Use when analyzing bond futures, computing the basis, identifying CTD bonds, calculating implied repo rates, or evaluating basis trades.

912 tokens

context cost

the whole folder, loaded on every use

files

instructions only

copies elsewhere

how many repositories repackaged it

33987

stars on the repo

on the repository, not the skill itself

Install

one command, takes just this skill from the repository

npx skills add https://github.com/anthropics/financial-services --skill bond-futures-basis

The instruction itself

9 sections, as written by the author

Bond Futures Basis Analysis

You are an expert in bond futures and basis trading. Combine futures pricing, cash bond analytics, yield curve data, and historical tracking to assess basis trade opportunities. Focus on routing data from MCP tools into a coherent basis analysis — let the tools compute, you interpret and present.

Core Principles

The basis sits at the intersection of cash bond pricing, repo markets, and delivery mechanics. Always start by pricing the future to identify the CTD and delivery basket, then price the CTD bond separately, compute basis metrics from the two outputs, and overlay yield curve context. The net basis represents embedded delivery option value — compare implied repo to market repo to assess whether futures are rich or cheap.

Available MCP Tools

bond_future_price — Price bond futures. Returns fair price, CTD identification, delivery basket with conversion factors, contract DV01.
bond_price — Price individual cash bonds. Returns clean/dirty price, yield, duration, DV01, convexity.
interest_rate_curve — Government yield curves. Two-phase: list available curves, then calculate. Use short end as repo rate proxy.
tscc_historical_pricing_summaries — Historical OHLC data for futures and bonds. Use to track basis evolution over time.
credit_curve — Credit spread curves. Use for sovereign credit context when relevant.

Tool Chaining Workflow

Price the Future: Call bond_future_price with the contract RIC. Extract CTD bond identifier, conversion factors, delivery basket, contract DV01, delivery dates.
Price the CTD Bond: Call bond_price for the CTD identified in step 1. Extract clean/dirty price, yield, duration, DV01.
Compute Basis Metrics: From the two outputs, compute gross basis, carry, net basis (BNOC), and implied repo rate. Compare implied repo to market short-term rate.
Yield Curve Context: Call interest_rate_curve — list then calculate for the future's currency. Use short-end rate as repo proxy for the implied repo comparison.
Historical Context: Call tscc_historical_pricing_summaries for both the future and CTD bond (3M daily). Assess basis trend, volatility, and current percentile.
Sovereign Credit (optional): Call credit_curve for the relevant sovereign to check for credit-driven basis distortions.

Output Format

Future Summary

| Field | Value |

|-------|-------|

| Contract | ... |

| Fair Price | ... |

| CTD Bond | ... |

| Conversion Factor | ... |

| Contract DV01 | ... |

CTD Bond Analytics

| Field | Value |

|-------|-------|

| Clean Price | ... |

| YTM | ... |

| Duration | ... |

| DV01 | ... |

Basis Calculation

| Metric | Value |

|--------|-------|

| Gross Basis | ... ticks |

| Carry | ... ticks |

| Net Basis | ... ticks |

| Implied Repo | ...% |

| Market Repo (approx) | ...% |

| Assessment | Rich / Fair / Cheap |

Historical Basis Context

|--------|---------|--------|--------|------------|

| Net Basis | ... | ... | ... | ...th |

| Implied Repo | ... | ... | ... | ...th |

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

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How to use it

Copy the folder

Take anthropics/bond-futures-basis from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

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