(Source:┬áNormanObserver) VERTICAL COMP SYSTEMS (OTCMKTS:VCSY) had a decrease of 55.05% in short interest. VCSY’s SI was 51,600 shares in January as released by FINRA. Its down 55.05% from 114,800 shares previously. The stock increased 8.68% or $0.0013 during the last trading session, reaching $0.0169. About shares traded.