adr-hshare

adr-hshare is a skill for Claude Code, Codex from skloxo/TideTrading. It costs 50 tokens per session (2,849 once invoked), scanned A, a copy of adr-hshare, MIT.

A framework for comparing the prices of the same Chinese company across A-shares in mainland China, H-shares in Hong Kong, and US-listed ADRs. An ADR is a US-traded certificate representing shares in a foreign company.

In plain words
What is it for?
Calculating cross-listing premiums, comparing dual or triple listings, assessing arbitrage signals, and reviewing ADR delisting risk.
Why use it?
It helps reveal pricing gaps, differing investor sentiment, possible arbitrage trades, and risks if a US listing is removed.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Calculating cross-listing premiums, comparing dual or triple listings, assessing arbitrage signals, and reviewing ADR delisting risk.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/skloxo/tidetrading/adr-hshare
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add skloxo/TideTrading --skill adr-hshare
Clone the repo
git clone --depth 1 https://github.com/skloxo/TideTrading

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for adr-hshare

README.md
[![agentmods](https://agentmods.dev/badge/skills/skloxo/tidetrading/adr-hshare/github.svg)](https://agentmods.dev/skills/skloxo/tidetrading/adr-hshare)
Your own site
<a href="https://agentmods.dev/skills/skloxo/tidetrading/adr-hshare"><img src="https://agentmods.dev/badge/skills/skloxo/tidetrading/adr-hshare/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for adr-hshare

Your own site · 80×15
<a href="https://agentmods.dev/skills/skloxo/tidetrading/adr-hshare"><img src="https://agentmods.dev/badge/skills/skloxo/tidetrading/adr-hshare.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 50 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,849 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 100% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00050 $0.02849
Opus 5 $0.00025 $0.01425
Sonnet 5 $0.00010 $0.00570
Haiku 4.5 $0.00005 $0.00285

Measured 10d ago against content hash e222f561d645, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

adr-hshare scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

100% identical to adr-hshare — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

agent/src/skills/adr-hshare/SKILL.md · 226 lines

How it starts

The opening of the file, as written. The whole thing — 226 lines — stays where its author put it; the contents beside it link to each section on GitHub.

ADR / H-Share / A-Share Cross-Listing Analysis

Overview

Many Chinese companies are listed on multiple exchanges — A-shares in Shanghai/Shenzhen, H-shares in Hong Kong, and ADRs in the US. Pricing gaps between these listings create arbitrage opportunities and reveal market-specific sentiment differences. This skill provides frameworks for analyzing cross-listing premiums, identifying arbitrage signals, and assessing delisting risk for US-listed Chinese ADRs.

Core Concepts

1. Cross-Listing Structures

Structure Description Examples
A + H dual-listed Same company listed on both A-share and HK exchange PetroChina (601857.SH / 0857.HK), ICBC (601398.SH / 1398.HK)
H + ADR dual-listed HK-listed with US ADR Alibaba (9988.HK / BABA), JD.com (9618.HK / JD)
A + H + ADR triple-listed All three markets China Life (601628.SH / 2628.HK / LFC)
HK primary + US secondary Primary listing in HK, secondary ADR Tencent (0700.HK / TCEHY OTC)
US primary → HK secondary Originally US, added HK listing Alibaba (BABA → 9988.HK), Baidu (BIDU → 9888.HK)

2. AH Premium Analysis

AH Premium = (A-share price / H-share price in CNY terms - 1) × 100%

def calculate_ah_premium(a_price_cny, h_price_hkd, usdcny, usdhkd):
    """Calculate AH premium for a dual-listed stock."""
    h_price_cny = h_price_hkd * (usdcny / usdhkd)  # Convert HKD to CNY
    ah_premium = (a_price_cny / h_price_cny - 1) * 100
    return ah_premium

# Example: PetroChina
# A-share: 8.50 CNY, H-share: 6.20 HKD
# USDCNY: 7.25, USDHKD: 7.82
# H in CNY: 6.20 * (7.25/7.82) = 5.75 CNY
# AH Premium: (8.50/5.75 - 1) * 100 = 47.8%

AH Premium signal interpretation:

Premium Level Interpretation Action
>50% Extreme A-share premium; A-share speculative bubble or H-share extreme undervaluation Strong: buy H, sell/avoid A
30-50% Elevated premium; normal for high-retail-participation names Moderate: favor H if fundamentals same
10-30% Normal range for most AH pairs Neutral; no strong arbitrage signal
0-10% Compressed premium; A-shares relatively cheap Unusual; investigate catalyst
<0% H-share premium over A-share Very rare; usually near-term event-driven

Read the full file on GitHub · 226 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 10d ago First seen · 226 lines · 50 tokens per session scan A e222f561d645

Subscribe to this mod's changes

adr-hshare is a skill published in the GitHub repository skloxo/TideTrading (10 stars, last pushed 3d ago), licensed MIT. It adds 50 tokens to every session and 2,849 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to adr-hshare, differing in 0 lines, and is treated as a copy.

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