Shares of IDT have been on a tremendous run in the past year, up over 60%, with much of the sales growth coming from outside its core telecom business which has traditionally catered to the immigrant community. The company's CEO Samuel Jonas says he is using the company's calling card expertise and distribution network to expand its rapidly growing money transfer business. He is also focusing on further monetizing IDT's mobile content company Zedge, as well as its cloud storage company Fabrix, which may ultimately be spun off if it continues to gain steam.

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