# Query options chains and HK warrants through Longbridge

Traders and analysts need fast access to options chains, Greeks, implied volatility, and HK warrant data without leaving their AI assistant. This skill routes natural-language questions to the Longbridge CLI and returns structured results.

## Install

```bash
npx skillstore add longbridge/longbridge-derivatives
```

## Metadata

- - Slug: longbridge-longbridge-derivatives
- - Version: 1.0.0
- - Author: longbridge
- - GitHub username: longbridge
- - License: MIT
- - Repository: https://github.com/longbridge/skills/tree/main/skills/longbridge-derivatives
- - Ref: main
- - Supported tools: Claude, Codex, Claude Code
- - Risk level: safe
- - Risk factors: external\_commands
- - Quality score: 77
- - Quality tier: bronze
- - Public page: https://skillstore.pages.dev/skills/longbridge-longbridge-derivatives
- - Manifest: https://skillstore.pages.dev/api/skills/longbridge-longbridge-derivatives/manifest

## Capabilities

- Look up option quotes with full Greeks \(Delta, Gamma, Theta, Vega\) for HK and US underlyings
- Browse option chains by expiry date and strike price
- Retrieve real-time call/put volume snapshots for sentiment analysis
- Compute and compare implied volatility vs historical volatility \(60-day HV\)
- Show IV percentile rank, volatility smile, and put/call skew
- List HK warrants and callable bull/bear contracts \(CBBC\) with issuer information

## Use Cases

- Options chain lookup for a US stock: A retail trader asks for the AAPL option chain expiring this Friday, including Greeks and IV. The skill calls longbridge option chain and longbridge option quote to return a structured chain.
- HK warrant screening: A Hong Kong investor wants to compare callable bull/bear contracts \(CBBC\) and warrants on 700.HK from different issuers. The skill returns the warrant list and issuer breakdown.
- IV vs HV volatility briefing: A quant analyst requests an implied-volatility vs historical-volatility snapshot for TSLA.US with smile and skew, to decide between premium-selling and premium-buying strategies.

## Prompt Templates

### Get an option chain

```
Show me the option chain for TSLA.US expiring on 2025-01-17, with strike, last price, IV, delta, and volume for both calls and puts.
```

### Quote a specific OCC option symbol

```
Quote AAPL240119C190000 with all Greeks and open interest.
```

### HK warrant screening

```
List the top 5 bull CBBCs on 700.HK by issuer, with effective gearing and call price.
```

### Volatility analysis

```
Compute IV vs 60-day HV for NVDA.US, show the smile across strikes, and tell me whether the put skew is elevated.
```

## Limitations

- Read-only — does not place or modify orders \(mutating trading requires a separate account skill\)
- Public data only for the option and warrant subcommands; no account positions
- US options require US market access entitlement on the Longbridge account
- HV/IV percentile calculations are approximate proxies when a full historical IV series is unavailable

## Best Practices

- Run \`longbridge <subcommand\> --help\` first to confirm the exact flags for the current CLI version before issuing a call
- Fetch the option chain without a date first to discover available expiries, then re-query with --date for the specific expiry you want
- Compare ATM IV against a 60-day HV proxy from the daily kline to judge whether vol is rich or cheap before recommending a strategy
- Cite Longbridge Securities as the source on every output and keep the response language matching the user's input

## Anti Patterns

- Do not hard-code OCC option symbols when the user only knows the underlying — use the two-step chain → quote discovery flow
- Do not invent strike prices, Greeks, or IV values — always pull from \`longbridge option\` or \`longbridge option quote\`
- Do not recommend placing orders from this skill — it is read-only; route order intents to the trading skill

## Security Audit

- - Safe to publish: true
- - Audited at: 2026-06-08T10:58:17.262\+00:00
- - Summary: Prompt-only skill with no executable scripts. All 86 'backtick execution' flags are markdown inline-code spans \(e.g. \`longbridge option --help\`\) in documentation, not code execution. 'Weak cryptographic algorithm' at SKILL.md:3 is a false match on the YAML frontmatter \(words like 'metadata', 'model'\). 'System reconnaissance' flags match the math term 'std' \(standard deviation\) in volatility formulas. 'Configuration library' is a false match in a workflow description. No scripts, no network code, no file writes, no env access. Verified by reading SKILL.md and reference files.

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