Shares of the digital bank and fintech company SoFi (SOFI 7.22%) traded roughly 8.6% higher, as of 1:26 p.m. ET today, hitting a new 52-week high earlier in the day of $18.92. There's no obvious reason behind the move, but a few reasons could explain the jump.Riding the momentumLast week, SoFi announced in a press release that it will offer new crypto initiatives on its platform. As investors may recall, SoFi had offered members the ability to buy certain cryptocurrencies on its investing platform, but had ...