Best ADR and CDI Research Workflow in 2026
A practical workflow for comparing ADRs, CDIs, ordinary shares, currency, liquidity, fees, and valuation context before investing.
An ADR and CDI research workflow should turn multiple listings into one economic comparison. The workflow starts with ratio and currency normalization, then adds liquidity, fees, dividend treatment, and valuation context before any investment decision.
Quick Answer
1. Identify every traded line for the company. 2. Normalize ratios and currencies. 3. Compare executable liquidity during overlap. 4. Add broker, FX, custody, and dividend frictions. 5. Check valuation context so the spread does not distract from the business.
Step 1: map the listings
Start with the primary ordinary share, then list any ADRs, CDIs, secondary listings, and local tickers. Write down the exchange, currency, depositary ratio, and whether the line is sponsored.
This prevents the common mistake of comparing ticker prices as if they were identical units.
Step 2: normalize the math
Convert each line into one ordinary-share equivalent in one currency. Use the same FX timestamp and be clear about whether you are using last trade, bid, ask, or midpoint.
The normalized price is the only price worth comparing.
Step 3: add execution reality
Look at spread, depth, average volume, market overlap, and order type. A small normalized discount can lose to poor execution.
For retail investors, ease of access can be worth a few basis points.
Step 4: compare the business
A cross-listing spread is not a full investment thesis. After the math, look at the company's valuation, growth, balance sheet, currency exposure, and news.
StockResearch combines cross-listing context with valuation research so the listing decision stays tied to the business.
FAQ
What should I check first?
The receipt or CDI ratio. It defines the unit you are comparing.
Is this workflow for trading or investing?
Both can use it, but the output is informational. Trading requires additional execution, tax, and risk controls.
Why include valuation after spread math?
Because buying the cheaper line of an unattractive business is still buying an unattractive business.
This post is for informational purposes only and does not constitute financial advice.