Section 240.10b-9 - Prohibited representations in connection with certain offerings(a) It shall constitute a manipulative or deception device or contrivance, as used in section 10(b) of the Act, for any person, directly or indirectly, in connection with the offer or sale of any security, to make any representation: (1) To the effect that the security is being offered or sold on an "all-or-none" basis, unless the security is part of an offering or distribution being made on the condition that all or a specified amount of the consideration paid for such security will be promptly refunded to the purchaser unless(i) all of the securities being offered are sold at a specified price within a specified time, and(ii) the total amount due to the seller is received by him by a specified date; or(2) To the effect that the security is being offered or sold on any other basis whereby all or part of the consideration paid for any such security will be refunded to the purchaser if all or some of the securities are not sold, unless the security is part of an offering or distribution being made on the condition that all or a specified part of the consideration paid for such security will be promptly refunded to the purchaser unless(i) a specified number of units of the security are sold at a specified price within a specified time, and(ii) the total amount due to the seller is received by him by a specified date.(b) This rule shall not apply to any offer or sale of securities as to which the seller has a firm commitment from underwriters or others (subject only to customary conditions precedent, including "market outs") for the purchase of all the securities being offered.27 FR 9943, Oct. 10, 1962 Sec. 10, 48 Stat. 891, as amended; 15 U.S.C. 78j