 Ducommun Incorporated NYSE:DCO saw a significant decline in short interest during the month of May. As of May 29th, there was short interest totalling 336,000 shares, a decline of 5.4 from the May 14th total of 355,100 shares. Based on an average trading volume of 122,900 shares, the short-interest ratio is currently 2.7 days. Currently, ... 