New ad ban to cover initial coin offerings and token sales Coin’s price has more than halved since reaching $20,000 Bitcoin swung between gains and losses around the $8,000 mark as investors digested the latest developments in a widening social-media crackdown on digital tokens. The largest cryptocurrency traded at $7,964 as of 8:39 a.m. in New York, according to consolidated Bloomberg pricing. Twitter Inc. confirmed on Monday it’s banning advertisements for initial coin offerings and token...

BlackRock Inc. still sees cryptocurrencies as too volatile for all but the most adventurous of investors, though the investment company is warming to the long-term potential of the underlying blockchain technology. The secure distributed-ledger technology that forms the basis of transactions with digital assets such as Bitcoin may offer “disruptive potential” for a wide range of industries from logistics to pharmaceuticals and financial services, according to BlackRock’s global Chief...

Eight years since the birth of bitcoin, central banks around the world are increasingly recognizing the potential upsides and downsides of digital currencies. The guardians of the global economy have two sets of issues to address. First is what to do, if anything, about emergence and growth of the private cryptocurrencies that are grabbing more and more attention -- with bitcoin now surging toward $10,000. The second question is whether to issue official versions. Following is an overview of...

Credit Suisse’s Thiam says currency fits bubble definition The cryptocurrency has Goldman’s Blankfein on the fence Is bitcoin a legitimate asset, or a super-bubble waiting to implode? As prices for the cryptocurrency skyrocket, investors and pundits are increasingly taking sides. Whether you’re a backer or a detractor, what’s not in doubt is bitcoin’s dizzying rally this year. The most widely used digital currency crossed the $7,000 mark on Thursday and is up more than 650 percent in 2017....

Bitcoin’s more-than 20 percent slump this week on China’s reported plans to shut down cryptocurrency exchange trading has investors speculating when it will drop below the key psychological level of $3,000. But the level to watch may be just beyond that threshold: $2,877. Not only is that bitcoin’s intraday high on Aug. 4 -- about the time the digital currency’s most recent leg up began -- it’s also bitcoin’s current 100-day moving average. For Chris Weston, IG Ltd.’s chief market strategist...