Mon, Oct 21, 2013 12:00 - Wildcat Exploration Ltd. (WCTXD: Grey Market) - Symbol Change - The symbol, WCTXD, is no longer a valid symbol for Wildcat Exploration Ltd.. As of Mon, Oct 21, 2013, the new trading symbol is WCTXF. You may find a complete list of symbol changes at otcmarkets.com.