The International Business Machines Corporation is an American IT and consulting company based in Armonk, New York. IBM is one of the world's leading companies for hardware, software and services in the IT sector and one of the largest consulting companies.
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