What is meant by NMS?
National Market System (NMS) refers to the system of trading over-the-counter (OTC) stocks under the sponsorship of FINRA and NASDAQ. These stocks must meet certain criteria for size, profitability and trading activity. More comprehensive information is available for NMS stocks than for non-NMS stocks traded OTC (high, low and last-sale prices, cumulative volume figures, and bid and ask quotations throughout the day).