This rule is no longer applicable. NASD
Rule 6520 has been superseded by FINRA Rule 6520. Please consult the appropriate FINRA Rule.
The OTCBB provides an electronic quotation medium for subscribing members to reflect market making interest in OTCBB-eligible securities. Subscribing market makers can utilize the Service to enter, update, and display their proprietary quotations in individual securities on a real-time basis. Such quotation entries may consist of a priced bid and/or offer; an unpriced indication of interest (including "bid wanted" or "offer wanted" indications); or a bid/offer accompanied by a modifier to reflect unsolicited customer interest. A subscribing market maker can also access the proprietary quotations that other firms have entered into the Service along with highest bid and lowest offer (i.e., an inside bid-ask calculation) in any OTCBB-eligible security with at least two market makers displaying two-sided markets.
