Fri, Dec 07, 2012 12:00 - Wildcat Exploration Ltd. (WCTXF: Grey Market) - Symbol Change - The symbol, WCTXF, is no longer a valid symbol for Wildcat Exploration Ltd.. As of Fri, Dec 07, 2012, the new trading symbol is WCTXD. You may find a complete list of symbol changes at otcmarkets.com.