Bitcoin Is on Track for Its Biggest Weekly Decline Since March

Bitcoin declined about 14 percent this week, the biggest five-day slide since January, as rival enthusiasts of the digital currency consider adopting two competing software updates at the end of July. That has raised the possibility that bitcoin will split in two, an unprecedented event that would send shockwaves through the cryptocurrency market. Still, bitcoin has more than doubled this year amid greater acceptance of the blockchain technology that underpins the exchange method.