Cryptocurrency exchanges in Japan are rallying for the softening of restrictions on margin trading, despite the tumultuous crash of the global digital asset market last year. A considerable number of industry professionals are advocating for the authorization of retail investors to employ leverage ranging between four to 10 times. Presently, investors can merely augment exposure by doubling through borrowing, according to Japan Virtual and Crypto Assets Exchange Association. Genki Oda, the Vice Chairman of the association, told Bloomberg, “Reforming the leverage rule could make Japan more attr…