In today's "What to Watch on Wall Street" segment for Wednesday, Sept. 24th 2014, we start off with what could be the largest bank IPO ever. Citizens Financial is set to debut on the trading floor of the New York Stock Exchange under the ticker, CFG. On the earnings front, we note financial results of KB Home before the opening bell. On the U.S. economic calendar, new home sales numbers and the petroleum status report are due out. In Washington, Chicago Fed President Charles Evans will speak. For the latest financial news and updates from Wall Street, check back on TheStreet.com throughout the day.