As of press time, Bitcoin has lost almost 15% on the news, while the majority of major altcoin assets fared considerably worse, dipping between 20% and 30%, some of the top 30 coins even seeing 40% losses.
Bitcoin Cash, which had seen significant price advances in the first part of January, has fallen below $2000. Ripple stood at $1.36 at press time - less than half of its Jan. 4 high over $3.