I want to know few reasons why the stock price of this company increased or decreased

Give me a few reasons of some events maybe of why

The following pic only shows what I understood and know about the company

Let me know plz

ComTech Telecommunications Corp (NASDAQ CMTL) Comtech Telecommunications Corp. designs, develops, produces and markets innovative products, systems and services for advanced communications solutions. They are technology leaders in the markets that we serve and conduct our business through three decentralized but complementary segments. The company's telecom transmission division markets such products as satellite earth station equipment and over-the-horizon microwave systems. The mobile data communications department offers mobile satellite transceivers and satellite packet data networks. Comtech also manufactures broadband amplifiers in the microwave and radio frequency spectrums. Its amplifiers are used in both defence and commercial applications. Apart from providing the hardware, the company also provides installation, training, and maintenance. Comtech, which was founded in 1967, is headquartered in Melville (N.Y.) ComTech is well-positioned from especially when compared to other segments in the market which is one of the reasons to invest in it. The firm has also had solid earnings from recent activities which suggest goor outcomes in both the short and long term. In additio the estimates have increased from 39 to 44 cents per share (Zacks Equity Research) ComTech Telecommunications Corp three month stock chart (October 2 2018 stock price: $34.56 stock price)