FB) first several days were much more frantic, and it was a larger offering, with 574 million shares traded on day one, and 13% of that, or 74 million on day four. By then, shares had fallen 16% since the first close, and 29% from the day one high. CMG) and Burger King ( BKW) combined. Together, these chains have generated $4.35 billion in trailing 12-month revenue and $515 million in net income during the same period. The pair has an average price-to-sales ratio of about 5.5, which is high for the restaurant sector, but a fraction of Twitter's.