What is "IB Symbol" in Interactive Brokers?

External question — Personal Finance Stack Exchange Author: yaskovdev Original post: https://money.stackexchange.com/questions/158489 License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/ Adaptation: HTML converted to plain text; contact email addresses removed. What is "IB Symbol" in Interactive Brokers? Why is it sometimes different from the "Symbol"? For example, in Xetra exchange , the iShares Core MSCI EM IMI UCITS ETF has Symbol IS3N, as expected. But its IB Symbol in the same table is EMIM. Same for LMWE in the table below.