如何买OTC market （也被称作四级市场）的古票

今天问了下。。。

For buying of shares in the OTC market, you will need to place funds into your trading account before you can place order to buy the OTC shares as your buy limit for OTC shares will be based on the credit balance in your trading account.

价格在这里查：http://www.otcmarkets.com/