
South Korea triggers trading halt after KOSPI drops, while analysts attribute Wall Street losses to AI regulation fears.
AI-generated summary
Global stock markets experienced a sharp sell-off following US election results and concerns over tech sector regulation and capital spending.
Bitcoin (BTC) held above $75,000 on Friday as a sell-off in US technology stocks spread to Asian markets.
Key points:
Bitcoin steadied after falling as much as 6.6% on Thursday to $75,109 on Bitstamp.
South Korea’s KOSPI triggered a trading halt after falling more than 8% shortly after Friday’s open. The government announced a three-month waiver of margin-loan collateral requirements for brokerages from Monday.
Analysis cited fears of tighter US regulation of AI following Democrats’ election gains. The Philadelphia Semiconductor Index fell 12.2% on Thursday.
South Korea eases collateral rules as KOSPI falls 6%
Data from TradingView showed BTC/USD trading near its 50-week simple moving average (SMA), at $75,733.
BTC/USD one-day chart with 50-week SMA. Source: Cointelegraph/TradingView
The pair fell as much as 6.6% on Thursday as US stock markets saw sustained selling throughout the Wall Street trading session. The S&P 500 and tech-heavy Nasdaq Composite closed down 4.4% and 5.5%, respectively.
Nasdaq Composite Index one-day chart. Source: Cointelegraph/TradingView
On Friday, Asian stocks extended the sell-off. South Korea’s KOSPI Composite Index fell more than 8% shortly after the open, triggering a circuit breaker that halted trading for 20 minutes. The index then pared losses to close 6% lower at 5,059.69 points, its lowest close since March 31.
KOSPI one-day chart. Source: Cointelegraph/TradingView
At an emergency meeting, Korea’s deputy prime minister and finance minister Lee Hyoung-il announced measures to reduce forced selling.
Brokerages will be exempt from a requirement to maintain a 140% collateral ratio on margin loans for three months from Monday, local media reported. Authorities said they would prepare futher measures if volatility increased.
“We recognize with gravity the expanding volatility in global stock markets following the U.S. midterm elections,” Chosun quoted an unnamed government source as saying.
“However, the domestic market has been overly reactive to external factors.”
Analysis call US stocks rout “more technical than fundamental”
Analysts linked Thursday’s Wall Street losses to fears of tighter AI regulation after Democrats won the House and Senate. Those fears compounded existing market concerns about the sector’s capital spending.
Related: Bitcoin, Ether ETFs post $530M outflows as election gains evaporate
Citing an X post by Democratic Rep. Yassamin Ansari, who called for a “pause on advanced AI development,” market commentary service The Kobeissi Letter said an outright US ban on AI was unlikely.
“In our view, a ban of AI will not happen in the US (with near-certainty). Such a ban, if even possible to enforce, would mean the US surrendering its position in the global AI race to China. That won’t happen,” it wrote in an X post.
“We believe today’s decline was more technical than fundamental.”
Kobeissi noted that Thursday’s losses were concentrated in tech, with the S&P 500 declining just about 2.5% excluding the sector. The Philadelphia Semiconductor Index, which tracks 30 semiconductor companies, finished Thursday 12.2% lower.
Philadelphia Semiconductor Index one-day chart. Source: Cointelegraph/TradingView
Economist Mohamed El-Erian also called for common ground on AI policy.said that lawmakers would need to find common ground on AI policy.
“America’s ‘let it rip’ approach to AI aligns with the technology’s productivity potential and national security imperatives. However, it has fallen short not only on safety and diffusion, but also on bringing society along,” he wrote in a Substack note.
El-Erian said the backlash reflected “genuine concerns,” information failures and behavioral factors.

Greece's parliament passed legislation imposing a 10% tax on cryptocurrency gains starting January 1, 2027. The bill also levies a 15% tax on staking and lending income while exempting annual gains under 500 euros.

South Korean crypto exchange GOPAX suspended trading, deposits, and standard withdrawals following a hack threat email. The exchange plans to transfer assets to offline wallets, adhering to regulatory recommendations after recent security concerns.

The US Treasury bought back $6 billion of older government bonds on Nov. 4, but 98% went to just two securities, leaving dealers holding other bonds they hoped to sell. Dealers want more frequent operations and per-security limits to spread purchases more broadly.

The S&P 500 fell up to 3.8% on Thursday, erasing Wednesday's post-election rally less than 24 hours after President Trump celebrated record highs and Americans' 401(k)s going "through the roof." Technology stocks led the decline, with Nvidia down over 6% and the semiconductor index down nearly 11%, as investors worried about Democratic oversight of AI infrastructure. Bitcoin fell below $76,000 with $428 million in leveraged crypto longs liquidated. The market remains above the first circuit breaker threshold of a 7% decline.

French bank Crédit Mutuel Arkéa said almost all operations resumed on Nov. 4 after an attack enabled fraudulent crypto transactions from its own account, delaying some customer transfers. The bank declined to confirm whether €118 million ($133 million) was stolen, validating only the order of magnitude, while blockchain firm Bitquery traced $108.8 million in USDC withdrawals from Kraken, Crypto.com and OKX wallets to 15 addresses on Nov. 1 and 2.

The U.S. Office of the Comptroller of the Currency issued its first supervisory framework for artificial intelligence in banking, directing examiners to focus on what happens when AI makes mistakes rather than system power. The 22-page guidance outlines four risk tiers, places autonomous payment agents in the highest category, and addresses external AI agents operated by customers and fintechs. It follows reports of unauthorized third-party AI agents inside customer accounts at major banks.