Each day, thousands of investors buy and sell securities listed on the OTC BB Exchange (Over the Counter Bulletin Board Exchange).

The OTC BB Exchange is a regulated exchange that displays real-time quotes, last-sale prices, and volume information in over-the-counter (OTC) equity securities. The OTC BB is considered the "credible" small cap exchange in the country as unlike the "Pink Sheet Exchange" all OTC BB companies must report to the United States Securities and Exchange Commission. Many companies that trade on the OTC BB Exchange are worth billions of dollars.

Brokers who subscribe to the system can use the OTC BB Exchange to look up prices or enter quotes for OTC securities. Although the National Association of Securities Dealers, Inc. oversees the OTC BB, the OTC BB is not part of The Nasdaq Stock Market.