LONDON/HONG KONG—Bitcoin strained on Tuesday to climb away from a two-week low touched a day earlier when China’s central bank reaffirmed a clampdown on cryptocurrencies and restricted trading channels for Chinese residents.
The world’s largest cryptocurrency gave up most of its earlier gains and was last up 0.5 percent at $31,753. It tumbled over 10 percent on Monday, its largest one-day drop in over a month.