AT&T Inc. is a North American telecommunications company. In addition to telephone, data and video telecommunications, AT&T also provides mobile communications and internet services for companies, private customers and government organizations. AT&T has long had a monopoly in the United States and Canada.
A Failure to deliver also known as fails-to-deliver or FTD occurs when a buyer or seller is unable to meet his trading obligations. FTDs for US listed companies are reported to the SEC and published twice a month. Therefore there is a certain delay between the reporting and the publishing of the data.
Number of shares, 3 months chart