A stock symbol may exist on more than one listing. Compare currency and primary exchange as well as the ticker. The routing exchange and the primary listing exchange are related fields with different roles.
Educational software guidance. Trading involves risk. Read the financial and information disclaimers.
Step by step
- 1 Find the intended stock listing in TWS.
- 2 Open Description and note the currency and primary listing.
- 3 Compare the app’s contract mapping with those values.
- 4 Correct an ambiguous mapping using the app’s supported fields or symbol settings.
- 5 Resolve the contract again and check the full description before an order.
A practical example
Suppose a company has listings in more than one market. The same short name is not enough to choose between them. Find the listing and currency you meant to use in TWS, then compare that with the app. Keep the route and the listing distinct: SMART can describe how an order is routed, while the primary exchange helps identify the stock.
Screen reference


Mistake to avoid
Common questions
Is SMART the stock’s primary listing?
SMART is a routing choice, not a substitute for checking the listing identity.
Does currency matter?
Yes. It helps tell apart contracts that share a symbol.