The market value of short interest increased by 7.0% ($44.0) billion over the past 30 days. Net new active shorting increased by $8.5 bn. The strongest short activity was seen in Health Technology, Energy and Transportation. The weakest short activity was seen in Consumer Services, Health Services and Consumer Durables (Chart 2). Consumer Durables, Non-Energy Minerals and Distribution Services have the highest short interest to shares outstanding (SISO, Chart 3)
Short interest spikes in Health Technology include Theravance Biopharma (TBPH), Allergan plc (AGN), Myriad Genetics (MYGN), . In Energy, spikes include Synergy Resources (SYRG) and Whiting Petroleum Corporation (WLL).
Stocks at risk of short squeeze include GATX Corp (GATX), Neustar Inc (NSR), Bofi Holding Inc (BOFI), Greenbrier Companies Inc (GBX), Big Lots Inc (BIG), Lindsay Corp (LNN), Lendingtree Inc (TREE) and Tailored Brands Inc (TLRD).