The cryptocurrency market experienced one of its most brutal weeks in 2017 as China’s crackdown on digital asset exchanges sent altcoin prices into freefall. By September 17, the total cryptocurrency market had shed more than $50 billion in value over just seven days, with virtually every major altcoin posting double-digit losses that left investors reeling.
TL;DR
- China ordered all cryptocurrency exchanges to cease operations by the end of September 2017
- The total crypto market lost over $50 billion in a single week across 800+ digital currencies
- Ethereum dropped to $251.75, Bitcoin Cash fell to $419.86, and Litecoin slid to $48.49
- BTCChina, one of the largest Chinese exchanges, announced it would halt all trading
- Regulatory pressure spread to South Korea, Hong Kong, and the United Kingdom
The China Shock
The catalyst for the carnage was a series of increasingly aggressive moves by Chinese regulators. Early in September, the People’s Bank of China banned initial coin offerings outright, declaring them illegal. What followed was even more devastating for altcoin markets: Chinese authorities ordered exchanges to stop signing up new users and prepare to announce a complete trading halt.
BTCChina, one of the country’s largest and oldest cryptocurrency exchanges, confirmed it would stop all trading by the end of the month. Bloomberg reported that regulators had set a hard deadline — all exchanges would be banned by September 30. The news triggered an immediate sell-off across the entire cryptocurrency space.
Ethereum Takes a Beating
Ethereum, the second-largest cryptocurrency by market capitalization, was hit particularly hard. After trading above $390 earlier in the month, ETH plunged to $251.75 by September 17 — a decline of roughly 14% in just seven days. The Ethereum blockchain, which served as the foundation for the vast majority of ICOs, was especially vulnerable to China’s ICO ban. Projects that had planned token sales on the Ethereum network suddenly faced an existential regulatory threat.
The total market capitalization of Ethereum fell to approximately $23.8 billion, down significantly from its early September highs. The 24-hour trading volume remained robust at $427 million, suggesting that even as prices fell, market participants were actively repositioning.
Bitcoin Cash and Litecoin Join the Slide
Bitcoin Cash, which had been spun off from Bitcoin just weeks earlier in August, saw its price collapse to $419.86 — a 21% decline over the week. BCH’s market capitalization fell to $6.96 billion, making it the third-largest cryptocurrency but significantly weaker than it had been at launch.
Litecoin suffered even steeper losses, dropping 24% over seven days to $48.49. Often described as the silver to Bitcoin’s gold, Litecoin’s decline underscored how the regulatory crackdown was not discriminating between major and minor altcoins. Its market cap stood at $2.57 billion with a 24-hour volume of $245 million.
Ripple, Dash, and the Broader Altcoin Space
Ripple’s XRP token fell to $0.1784, down nearly 17% on the week, with a market cap of $6.84 billion. Dash, which had been one of the few coins showing resilience, actually gained 5.75% in 24 hours to trade at $313.84 — though it was still down 2.88% for the week. Monero dropped to $93.74, a 17% weekly decline, while IOTA managed to post a modest 2.64% daily gain at $0.497.
The breadth of the sell-off was remarkable. Of the top 20 cryptocurrencies by market capitalization, every single one was in negative territory for the week. The contagion from China’s regulatory action had spread across the entire market, wiping out billions in market value.
Why This Matters
The September 2017 China ban was a watershed moment for altcoins. It demonstrated that regulatory action in a single country could wipe out tens of billions of dollars in market value across the entire cryptocurrency ecosystem. The event forced altcoin projects to fundamentally rethink their dependence on Chinese exchanges and investors. Those that survived and adapted — Ethereum, Ripple, Litecoin — eventually recovered and went on to participate in the massive bull run that pushed Bitcoin to nearly $20,000 by year’s end. However, the scars of September 2017 served as a permanent reminder that regulatory risk remains the single largest threat to altcoin markets.
Disclaimer: This article is for informational purposes only and does not constitute financial advice. Cryptocurrency investments carry significant risk. Always conduct your own research before making investment decisions.