Yep, that is basically all that it is. All stocks on the pinksheets have to fill out that form, and they need at least 1 MM to post the quotes (as they are unsolicited), which means pinksheets aren't a trading system. So, basically, the market maker needs shares to "make" the market.
"Unsolicited Quote
An unsolicited quote is one which represents an "Unsolicited Customer Order". Publishing unsolicited quotes allows a broker/dealer to meet an exception to Rule 15c2-11, which requires a broker to have in its possession current information, including financial information, about the issuer of the securities . To avail itself of this exception to SEC Rule 15c2-11, an NASD member firm must ensure that the quotation published or submitted: (1) is solely on behalf of a customer; (2) represents the customer's indication of interest; and (3) does not involve the solicitation of the customer's interest."
"Pink Sheets
The Pink Sheets is a centralized quotation service that collects and publishes market maker quotes for OTC securities in real time. Pink Sheets is a nexus of OTC dealer markets that enhances price transparency in the OTC markets so investors can more efficiently buy and sell OTC securities."
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