“Flipping” is when a customer sells a new issue into the secondary market at a profit shortly after the IPO. Underwriting managers may discourage this by imposing penalty bids on brokers whose customers flip securities. Some firms have sought to independently recoup commissions paid to such brokers. Effective May 27, 2011, FINRA requires that flipping only be punished through penalty bids applied to the entire syndicate by the underwriting manager. Relevant to the Series 24, Series 62 and the Series 79 exams.
http://www.finra.org/Industry/Regulation/Notices/2010/P122491