SKILL Workshop | One company, two prices — see the whole gap on a single screen

Skill Workshop · Issue 2 · ADR Premium Radar

Alibaba has two prices: one in New York, one in Hong Kong.

In theory they should line up once you convert. In practice, they often don't.

To know which side is cheaper right now, you first have to work out the ADR ratio, the FX rate and both prices…

That sum is what ADR Premium Radar does for you:

✅ Type in a ticker, and it tells you on the spot which side is cheaper, by how much, and whether that is normal.

Two ways to use it: Single Pair, or Full Pool Scan

• Single Pair — pick one pair and look at it closely
• Full Pool Scan — all 29 pairs lined up at once, sorted by deviation from the mean, largest first.

1️⃣ Single Pair — pick one pair and look at it closely.

Both prices, the FX rate, the ADR ratio and the current premium, all laid out.

Then the recent mean, how far today deviates from it, the historical percentile, and a mean-reversion half-life to estimate how long it takes to snap back.

Plus two charts: the premium curve shows how extreme this reading is, and the overlaid price lines show which side is running faster.

2️⃣ Full Pool Scan — all 29 pairs lined up at once, sorted by deviation from the mean, largest first.

You can also narrow it to「US Cheaper Only」or「HK Cheaper Only」.

Which ones sit at an extreme, which are running the other way, which are lying flat on the mean — one screen makes it all clear.

See a pair you like? One click takes you into its Single Pair view.

The 29 pairs in the line-up

E-commerce, internet, EV makers, consumer, healthcare tech — most dual-listed China names are in there.

BABA/9988, JD/9618, BIDU/9888, NIO/9866, XPEV/9868, BEKE/2423…

The 12 most liquid pairs lead the list; the other 17 are thinner and sit in a watch pool.

How the premium is worked out

What you buy in the US is an ADR — one share stands for several HK shares.

And the ratio differs by company: Alibaba is 1 to 8, JD is 1 to 2.

So the two prices can't be compared directly. They have to be converted first:

ADR-implied price = US price ÷ ADR ratio × USD→HKD rate

Convert to Hong Kong dollars, compare against the HK price, and that gap is the premium. Positive means HK is dearer; negative means the US is.

That figure is then ranked against recent history — is today's gap routine, or rare?

One thing to note: the pair used as the conversion benchmark is measured against itself, so its premium is always 0.00%. That's expected.

Premium Radar · installed in 3 steps

Prerequisite: Longbridge Skill (CLI) needs to be installed first, and the package only runs inside an AI assistant — we recommend using it on desktop web.

• 1️⃣ Click the download link: install link, and get the ZIP
  (no need to unzip — import it straight into your AI assistant)
• 2️⃣ Open your AI assistant, find【Skills / Plugins】→ click import → select the ZIP
  Or simply drag the ZIP into the chat box, and it will walk you through the install.
• 3️⃣ Send one line —「Open Premium Radar」— and the browser opens automatically

Longbridge Skill · how to install:

Here's the step-by-step guide: Skill tutorial, Official install guide

🎁 Comment to win!

Take part in either way:

1. Share a screenshot: post what the Radar returned for you
2. Place a request: tell us the next tool you'd most like Skill Workshop to build

Every valid entry earns 288 Task Coins

We'll also draw 1 winner at random from all valid entries, who receives an AI Pro benefits card worth SGD 25

Event period: from now until 19 August 2026, 7:00 PM. Rewards will be distributed within 15 working days after the event ends

✌️Longbridge Skill does more than this

Screen stocks · check technicals · track institutional holdings · watch insider trades · review position P&L · place conditional orders…

Things that used to mean switching between several tools now take one line to an AI

Data comes from public market data on both exchanges and live FX rates; free quotes are delayed by about 15 minutes. For research and educational use only; nothing here constitutes investment advice. Longbridge reserves the right of final interpretation.