Is OTCMKTS stock price strictly linked to the foreign traded stock price?

External question — Personal Finance Stack Exchange Author: Jerry Zhang Original post: https://money.stackexchange.com/questions/131844 License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/ Adaptation: HTML converted to plain text; contact email addresses removed. I know OTCMKTS is OTC Markets Group. However, is the OTCMKTS stock price strictly linked to the foreign traded stock price? For example, when I search "OTCMKTS: ZTCOY" and "zte stock hk (HKG: 0763)", I feel they have very similar prices. "OTCMKTS: ZTCOY" indicates the price in the US while "HKG: 0763" indicates the price traded in Hong Kong. I also searched in my broker. It shows up two choices: ZTCOF ZTE CORP SHS H and ZTCOY ZTE CORP UNSPONSORED ADR. So, which one should I buy?