24/7 Wall St. Closing Bell — September 21, 2012: Markets Mixed on Quadruple Witching Day (FB, IBM, MA, MSI, AN, ORCL, CTAS, DRI, KBH, LEN, PSDV, RHT, S, AAPL, RIMM, DHRM, VVUS)
The three major U.S. stock indexes opened higher this morning, encouraged by a report from Europe that Spain was close to unveiling a rescue plan for the country’s banks that it would…