Historical replay · BTC/USD
China's Comprehensive Ban (September 2021)
On September 24, 2021, China's central bank declared all cryptocurrency transactions illegal, escalating years of gradual restrictions. The market reacted with a sharp but largely "priced in" drop.
China was no stranger to crypto restrictions: as early as 2013 it had banned banks from handling Bitcoin transactions, and in 2017 it shut down local exchanges. On September 24, 2021, the People's Bank of China went a step further, declaring all cryptocurrency transactions illegal — including those made through foreign platforms accessible from Chinese territory — and reiterating the mining crackdown already underway for months.
Unlike crashes triggered by completely unexpected events, this announcement came after months of increasingly clear signals pointing the same direction: most Bitcoin mining had already relocated out of China in the preceding months, and many traders had already trimmed exposure in anticipation of further regulatory tightening. Bitcoin fell from around $44,000 to just over $40,000 in the hours following the announcement — a clear but notably milder drop compared to other events in this replay.
Within a few days, the price recovered most of the lost ground. The episode is a good example of how markets tend to react more moderately to bad news when it's widely anticipated, compared to a completely surprising shock — the difference between an event that's already "priced in" and one that catches everyone off guard.