Union Pacific Corporation is an American company based in Omaha, Nebraska. The company is part of the Dow Jones Composite Average and Dow Jones Transportation Average indices. It is the parent company of the Union Pacific Railroad and had a network of 51,610km (32,068 miles) in 2016.
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